Page 1 Toshiba Personal Computer QOSMIO F20 Maintenance Manual TOSHIBA CORPORATION File Number 960-526 [CONFIDENTIAL]...
Page 2 The information presented in this manual has been reviewed and validated for accuracy. The included set of instructions and descriptions are accurate for the QOSMIO F20 at the time of this manual's production. However, succeeding computers and manuals are subject to change without notice.
Page 3 This maintenance manual describes how to perform hardware service maintenance for the Toshiba Personal Computer QOSMIO F20. NOTE: Each model of QOSMIO F20 has a different configuration. For each model’s configuration, refer to the parts list dedicated to it. The procedures described in this manual are intended to help service technicians isolate faulty Field Replaceable Units (FRUs) and replace them in the field.
Page 4: Handling The Lcd Module
The manual is divided into the following parts: Chapter 1 Hardware Overview describes the QOSMIO F20 system unit and each FRU. Chapter 2 Troubleshooting Procedures explains how to diagnose and resolve FRU problems. Chapter 3 Test and Diagnostics describes how to perform test and diagnostic operations for maintenance service.
Page 5 Text that you are instructed to type in is shown in the boldface type below: DISKCOPY A: B: The display Text generated by the computer that appears on its display is presented in the type face below: Format complete System transferred QOSMIO F20 Maintenance Manual (960-526) [CONFIDENTIAL]...
Page 6: Table Of Contents
Display Troubleshooting..................2-47 2.10 Optical Drive Troubleshooting ................2-50 2.11 Modem Troubleshooting..................2-51 2.12 LAN Troubleshooting ....................2-52 2.13 Wireless LAN Troubleshooting ................2-53 2.14 Sound Troubleshooting .................... 2-56 2.15 TV Tuner Troubleshooting ..................2-58 [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)
Page 7 Wireless LAN Test Program (Intel- made b/g) ............3-57 3.27 Wireless LAN Test Program (Intel- made a/b/g)............3-61 3.28 Wireless LAN Test Program (Askey- made) ............3-66 3.29 LAN/Modem/Bluetooth/IEEE1394 Test Program ..........3-70 3.30 Sound Test Program....................3-85 3.31 SETUP ........................3-91 QOSMIO F20 Maintenance Manual (960-526) [CONFIDENTIAL]...
Page 8 Touch pad/Volume knob..................4-53 4.20 LCD unit/FL inverter ....................4-56 4.21 Wireless LAN antenna ..................... 4-63 4.22 Hinge ........................4-64 4.23 Battery lock / Battery latch ..................4-67 4.24 Fluorescent lamp ...................... 4-69 viii [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)
Page 9 Pin Assignment ..................C-1 Appendix D Keyboard Scan/Character Codes ............... D-1 Appendix E Key Layout ....................E-1 Appendix F Wiring Diagrams..................F-1 Appendix G BIOS Rewite procedures................G-1 Appendix H EC/KBC Rewrite procedures ..............H-1 Appendix I Reliability.....................I-1 QOSMIO F20 Maintenance Manual (960-526) [CONFIDENTIAL]...
Page 10 [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)
Page 11: Hardware Overview
Chapter 1 Hardware Overview [CONFIDENTIAL]...
Page 12 1 Hardware Overview Hardware Overview 1-ii [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)
Page 13 LCD Module..................1-25 1.6.2 FL Inverter Board ................1-26 Power Supply ......................1-27 Batteries ........................1-29 1.8.1 Main Battery..................1-29 1.8.2 Battery Charging Control ..............1-30 1.8.3 RTC battery..................1-31 AC Adapter ......................1-32 QOSMIO F20 Maintenance Manual (960-526) [CONFIDENTIAL] 1-iii...
Page 14 Table 1-11 Time required for charges of main battery........... 1-30 Table 1-12 Data preservation time ................. 1-30 Table 1-13 Time required for charges of RTC battery........... 1-31 Table 1-14 AC adapter specifications ................1-32 1-iv [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)
Page 15: Features
1.1 Features 1 Hardware Overview Features Features The QOSMIO F20 series are high performance all- in-one PCs running a Pentium-M/ Celeron-M processor. The features are listed below. Microprocessor Microprocessor that is used depends on the model. ® ® Intel Pentium -M 1.60/1.73/1.86/2.00/2.13GHz...
Page 16 Optical device A DVD-ROM & CD-R/RW or DVD Super Multi drive with Double layer is equipped. Battery A RTC battery is mounted inside the computer. A main battery is a detachable lithium ion battery. [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)
Page 17 Jacks for LAN (RJ45) and Modem (RJ11) are separately mounted. IEEE 1394 port The computer has one IEEE 1394 port. It enables high-speed data transfer directly from external devices such as digital video cameras. QOSMIO F20 Maintenance Manual (960-526) [CONFIDENTIAL]...
Page 18: Figure 1-1 Front Of The Computer
1 Hardware Overview 1.1 Features Figure 1-1 shows the front of the computer and Figure 1-2 shows the system units configuration. Figure 1-1 Front of the computer [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)
Page 19: Figure 1-2 System Units Configuration
1.1 Features 1 Hardware Overview Figure 1-2 System units configuration QOSMIO F20 Maintenance Manual (960-526) [CONFIDENTIAL]...
Page 20: Figure 1-3 System Block Diagram
1 Hardware Overview 1.2 System Block Diagram System Block Diagram Figure 1-3 shows the system block diagram. Figure 1-3 System block diagram [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)
Page 21 Two memory slots are provided. Expansion up to 2GB (2,048MB) is available. Memory DDR2-SDRAM DDR533 memory 1.8 volt operation FBGA Memory Module 240 pin, SO Dual In- line Memory Module (SO-DIMM) PC3300 or PC4300 256MB/512MB/1GB QOSMIO F20 Maintenance Manual (960-526) [CONFIDENTIAL]...
Page 22 USB 1.1/2.0 Controller 8 Ports (EHCI: Enhanced Host Controller) Internal LAN Controller (WfM and IEEE 802.3) Power Management Controller (ACPI 2.0) SMBus2.0 Controller FWH Interface (BIOS) LPC Interface (EC/KBC, Super I/O) IRQ Controller Serial Interrupt Controller [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)
Page 23 Conformity with IEEE 802.11b/g or IEEE 802.11a/b/g. Transfer speed is maximum of 11Mbit/sec. Supports 128bit WEP. TV tuner module (Toshiba- made MCPJ11 x 1) It is a capture module with built- in TV tuner function supporting worldwide broadcasting. It has also MPEG2 hardware encoding function. It encodes TV broadcasting signal and composite video, s-video and stereo audio signal to MPEG2 format in real time.
Page 24 The transfer speed of data receiving is 56kbps, of data sending is 33.6kbps and of FAX is 14.4kbps. Actual speed depends on the quality of the line used. Connected to telephone line through RJ11 Modem jack. 1-10 [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)
Page 25: Figure 1-4 2.5-Inch Hdd
Depth (mm) Weight (g) 99 (MAX) Standard value Parameter TOSHIBA TOSHIBA TOSHIBA TOSHIBA HDD2193VZK01 HDD2194VZK01 HDD2191VZK01 HDD2D08BZK01 Width (mm) 69.85 Outline Height (mm) dimensions Depth (mm) Weight (g) 98 (MAX) 102 (MAX) 102 (MAX) QOSMIO F20 Maintenance Manual (960-526) [CONFIDENTIAL] 1-11...
Page 26 Depth (mm) 100.0 Weight (g) 96 (MAX) 100 (MAX) Standard value Parameter SEAGATE SEAGATE SEAGATE SEAGATE G8BC00021410 G8BC00021610 G8BC00021810 G8BC00021A10 Width (mm) 69.85?0.25 Height (mm) Outline 9.5?0.2 dimensions Depth (mm) 100.2?0.25 Weight (g) 1-12 [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)
Page 27: Table 1-2 2.5-Inch Hdd Specifications
(Mbits/s) Interface transfer rate 100 (Ultra DMA mode) (MB/s) Storage density (Kbpi) Track density (Ktpi) 88.8 110-120 Average random seek time (read) (ms) Average random seek time (write) (ms) Motor startup time (ms) QOSMIO F20 Maintenance Manual (960-526) [CONFIDENTIAL] 1-13...
Page 28 Data transfer speed (Mbits/s) Interface transfer rate 100 (Ultra DMA mode) (MB/s) Storage density (Kbpi) Track density (Ktpi) 113.2 Average random seek time (read) (ms) Average random seek time (write) (ms) Motor startup time (ms) 1-14 [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)
Page 29 5,400 Data transfer speed (Mbits/s) Interface transfer rate (MB/s) Storage density (Kbpi) Track density (Ktpi) Average random seek 12.5 time (read) (ms) Average random seek 14.5 time (write) (ms) Motor startup time (ms) QOSMIO F20 Maintenance Manual (960-526) [CONFIDENTIAL] 1-15...
Page 30: Figure 1-5 Dvd-Rom & Cd-R/Rw Drive
Table 1-3 DVD-ROM & CD-R/RW drive outline dimensions Parameter Standard value MATSUSHITA TEAC TSST Maker (G8CC0002J520) (G8CC0002K520) (G8CC0002L520) Width (mm) Outline dimensions Height (mm) 12.7 (excluding projections) Depth (mm) 129.4 127.0 Mass (g) 180?10 1-16 [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)
Page 31 Access time (ms) DVD-ROM 180 Typ. Buffer memory CD/CD-ROM (12cm, 8cm), CD-R, CD-RW, CD-DA, CD- ROM XA, Photo CD, CD-Extra(CD+), CD-text Supported disk format DVD-ROM, DVD-R, DVD-RW (Ver1.2), DVD-Video, DVD+R, DVD+RW, DVD-RAM (2.6GB/4.7GB) QOSMIO F20 Maintenance Manual (960-526) [CONFIDENTIAL] 1-17...
Page 32 CD-DA, CD-ROM Mode 1, CD-ROM XA Mode 2 (Form 1 and Form 2), Multi-session Photo CD, CD-I, Video CD, Supported disk Enhanced CD, CD-TEXT format DVD-ROM, DVD-R (General, Authoring), DVD-Video, DVD-RW, DVD-RAM (4.7GB/2.6GB), DVD+R/RW (Single/Multi-session, Packet) 1-18 [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)
Page 33 CD-DA, CD-ROM (Mode1 & 2), CD-ROM XA (Mode2 Form1 & 2), CD-I/FMV (Mode2 Form1 & 2, Ready, Bridge), Supported disk CD-Extra/CD-Plus, Video CD format DVD-ROM, DVD-Video, DVD-R (3.9G), DVD-R (4.4G (General, Authoring)), DVD+R (Version 1.0), DVD±RW, DVD-RAM QOSMIO F20 Maintenance Manual (960-526) [CONFIDENTIAL] 1-19...
Page 34: Table 1-5 Dvd Super Multi Drive (Double Layer) Outline Dimensions
Table 1-5 DVD Super Multi drive (double layer) outline dimensions Parameter Standard value MATSUSHITA TEAC TSST Maker (G8CC0002F520) (G8CC0002G520) (G8CC0002H520) Width (mm) Outline dimensions Height (mm) 12.7 (excluding projections) Depth (mm) 129.0 129.4 126.1 190 ? 10 Mass (g) 195(Typ.) 1-20 [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)
Page 35: Table 1-6 Dvd Super Multi Drive (Double Layer) Specifications (1/3
Ultra DMA mode 33.3 MB/s(Ultra DMA MODE2 supported) CD-ROM 150 (Random) Access time (ms) DVD-ROM 180 (Random) Buffer memory CD-DA, CD-ROM, CD-ROM XA, Photo CD, CD-Extra(CD+), CD-text Supported disk format DVD-ROM, DVD-R, DVD-RW (Ver1.1), DVD Video, DVD+R, DVD+RW, DVD-RAM (2.6GB/4.7GB) QOSMIO F20 Maintenance Manual (960-526) [CONFIDENTIAL] 1-21...
Page 36 CD-ROM XA Mode 2 (Form 1, Form 2), Multi-session Photo CD, CD-I, Video CD, Supported disk Enhanced CD, CD-TEXT format DVD-ROM, DVD-R (General, Authoring), DVD-Video, DVD- RW, DVD-RAM (4.7GB, 2.6GB/Read only), DVD+R, DVD+R (Double layer), DVD+RW 1-22 [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)
Page 37 General), DVD-RW (Ver.1.1 & Ver.1.2), DVD+R Part 1 Single Layer (4.7 GB Basic Format Spec.Ver.1.3), DVD+R Part 2 Double Layer (8.5 GB Basic Format Spec.Ver.1.0), DVD+RW (Ver.1.2), DVD-RAM (Ver.2.1 & Ver.2.2), Optional Spec. 5X-Speed DVD-RAM Rev.2.0 QOSMIO F20 Maintenance Manual (960-526) [CONFIDENTIAL] 1-23...
Page 38: Figure 1-7 Keyboard
Figure 1-7 is a view of the keyboard. Figure 1-7 Keyboard See Appendix E for details of the keyboard layout. 1-24 [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)
Page 39: Tft Color Display
0.25875(H) x 0.25875(V) Display range (mm) 331.2(H) x 207.0(V) Specifications (One lamp) Item Samsung (G33C0002S110) Chimei (G33C0002T110) Number of Dots 1,280(W) x 800(H) Dot spacing (mm) 0.2588(H) x 0.2588(V) Display range (mm) 331.2(H) x 207.0(V) QOSMIO F20 Maintenance Manual (960-526) [CONFIDENTIAL] 1-25...
Page 40: Table 1-8 Fl Inverter Board Specifications
Item G71C00011110 G71C00011221 G71C0004F410 (One lamp) (One lamp) (Two lamps) Input Voltage (V) 5 (DC) Power (W) Output Voltage (V) 750 (rms) 900 (rms) Current 7 (rms) 6 (rms) (f=70KHz)(mA) (x 2 output) 1-26 [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)
Page 41: Table 1-9 Power Supply Output Rating
0R9-P0V DDR2-SDRAM ICH1R5-S1V ICH6-M ICH-S3V ICH6-M ICH-S5V ICH6-M Clock Generator, Thermal Sensor, SDRAM (SPD), ICH6-M,PCI7411, Mini-PCI, WW Tuner, FWH, AD1981B, Super I/O,GPU, (ExpressCard) PCI7411, PC Card Power, IEEE1394, Mini-PCI, MDC, Yes/No ICH6-M, (ExpressCard) QOSMIO F20 Maintenance Manual (960-526) [CONFIDENTIAL] 1-27...
Page 42: Table
WW Tuner SND-P5V AMP (AN12941) AD1981B, Amp(AN12941), A4R7-P4V Mic Amp, Line In, Line Out PC-Card Power, USB Yes/No Power USB0PS-E5V Yes/No USB1PS-E5V Yes/No Temperature reset IC, LEDs 2.0 - ICH6-M (RTC) 1R2-P1V VG1R8-P1V 1-28 [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)
Page 43: Table 1-10 Battery Specifications
1.8.1 Main Battery The main battery is the primary power supply for the computer when the AC adapter is not connected. In Stand by mode, the main battery maintains the current status of the computer. QOSMIO F20 Maintenance Manual (960-526) [CONFIDENTIAL] 1-29...
Page 44: Table 1-11 Time Required For Charges Of Main Battery
When turning off the power in being charged fully, the preservation time is as follows: (See Table 1-12) Table 1-12 Data preservation time Condition preservation time Standby 4,400mAh About 4 days 8,800mAh About 9 days Shutdown, Hibernation 4,400mAh About 30 days 8,800mAh About 65 days 1-30 [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)
Page 45: Table 1-13 Time Required For Charges Of Rtc Battery
Table 1-13 lists the Time required for charges of RTC battery and data preservation time. Table 1-13 Time required for charges of RTC battery Condition Time Power ON (Lights Power LED) More than 8 hours Data preservation time (Full-charged) About a month QOSMIO F20 Maintenance Manual (960-526) [CONFIDENTIAL] 1-31...
Page 46: Table 1-14 Ac Adapter Specifications
50Hz/60Hz Input current 1.5A or less (100V) 1.3A or less 1.125A or less (240V) Output voltage DC 15V Output current 6.0A 0A~ 5A (At constant voltage mode) 5A~ 6A (At surge load mode) 1-32 [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)
Page 47: Troubleshooting Procedures
Chapter 2 Troubleshooting Procedures [CONFIDENTIAL]...
Page 48 2 Troubleshooting Procedures 2-ii [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)
Page 49 Diagnostic Test Program Execution Check ......2-45 Procedure 2 Connector Check and Replacement Check ......2-45 Touch Pad Troubleshooting ..................2-46 Procedure 1 Diagnostic Test Program Execution Check ......2-46 Procedure 2 Connector Check and Replacement Check ......2-46 QOSMIO F20 Maintenance Manual (960-526) [CONFIDENTIAL] 2-iii...
Page 50 Procedure 1 Diagnostic Test Program Execution Check ......2-56 Procedure 2 Connector Check..............2-56 Procedure 3 Replacement Check.............. 2-57 2.15 TV Tuner Troubleshooting ..................2-58 Procedure 1 Connector Check and Replacement Check ......2-58 2-iv [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)
Page 51 Debug port (Suspend mode) error status ............. 2-29 Table 2-6 Debug port (Resume mode) error status ............2-32 Table 2-7 FDD error code and status ................2-38 Table 2-8 2.5” Hard disk drive error code and status........... 2-43 QOSMIO F20 Maintenance Manual (960-526) [CONFIDENTIAL]...
Page 52 2 Troubleshooting Procedures 2-vi [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)
Page 53: Troubleshooting
There are following two types of connections in the figures of board and module connection in and after 2.3 Power Supply Troubleshooting. (1) Cable connection is described as line in the figures. (2) Pin connection is described as arrow in the figure. <e.g> Connection of modem QOSMIO F20 Maintenance Manual (960-526) [CONFIDENTIAL]...
Page 54: Troubleshooting Flowchart
? Ask the user if a password is registered and, if it is, ask him or her to enter the password. ? Verify with the customer that Toshiba Windows XP Home Edition or Windows XP Media Center Edition is installed on the hard disk. Non-Windows operating systems can cause the computer to malfunction.
Page 55 2.2 Troubleshooting Flowchart 2 Troubleshooting Procedures Figure 2-1 Troubleshooting flowchart (1/2) QOSMIO F20 Maintenance Manual (960-526) [CONFIDENTIAL]...
Page 56 2 Troubleshooting Procedures 2.2 Troubleshooting Flowchart Figure 2-1 Troubleshooting flowchart (2/2) [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)
Page 57 11. If an error is detected on the Sound test, perform the Sound Troubleshooting Procedures in Section 2.14. 12. If any trouble occurs on the TV tuner function, perform the TV tuner Troubleshooting Procedures in Section 2.15. QOSMIO F20 Maintenance Manual (960-526) [CONFIDENTIAL]...
Page 58: Power Supply Troubleshooting
Battery level is low while the system power is ON. (even intervals) Blinks orange once System is driven by only a battery and the battery level is (at being switched on) low. Doesn’t light Any condition other than those above. [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)
Page 59 Check 3 If the battery icon does not light orange or green, go to Procedure 4. NOTE: Use the supplied AC adapter G71C00043210 (two-pins for internal GPU model)/ G71C00024410 (two-pins for external GPU model)/G71C00049210 (three-pins for internal GPU model). QOSMIO F20 Maintenance Manual (960-526) [CONFIDENTIAL]...
Page 60 Error code 11h (Error codes are given in hexadecimal format.) Start Check 1 Convert the DC IN icon blink pattern into the hexadecimal error code and compare it to the tables below. Then go to Check 2. [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)
Page 61 Common Dock output voltage is over 16.5V. Current from the DC power supply is over 8.0A. Current from the DC power supply is over 0.5A when there is no load. Abnormal current has been sensed. QOSMIO F20 Maintenance Manual (960-526) [CONFIDENTIAL]...
Page 62: Main Battery
A-C3V voltage is 2.81V or less while the computer is suspended. A-C3V voltage is abnormal while the computer is shutdown. (CV support) A-C3V voltage is 2.81V or less when the computer is booting up. (CV support) 2-10 [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)
Page 63: Ppv Output
E5V voltage is 4.50V or less when the computer is booting up. E5V voltage is 4.50V or more when the computer is powered off. E5V voltage is 4.50V or less while the computer is suspended. QOSMIO F20 Maintenance Manual (960-526) [CONFIDENTIAL] 2-11...
Page 64: R5-P1V Output
PTV voltage is 0.68V or less when the computer is booting up. PTV voltage is 0.68V or more when the computer is powered off. PTV voltage is 0.68V or less while the computer is suspended. 2-12 [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)
Page 65: R8-B1V Output
? Connect a new AC adapter and AC power cord. If the error still exists, go to Procedure 5. Check 3 In the case of error code 21h: ? Go to Procedure 3. Check 4 For any other errors, go to Procedure 5. QOSMIO F20 Maintenance Manual (960-526) [CONFIDENTIAL] 2-13...
Page 66 If the battery icon does not light, go to Check 4. Check 4 Make sure the battery pack is installed in the computer correctly. If the battery is properly installed and the battery icon still does not light, go to Procedure 4. 2-14 [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)
Page 67 Procedures. Check 1 Replace the AC adapter with a new one. If the AC adapter is still not functioning properly, perform Check 2. Check 2 Replace the system board with a new one. QOSMIO F20 Maintenance Manual (960-526) [CONFIDENTIAL] 2-15...
Page 68: System Board Troubleshooting
1 and continue with the other procedures as instructed. The procedures described in this section are: Procedure 1: Message Check Procedure 2: Debug Port Check Procedure 3: Diagnostic Test Program Execution Check Procedure 4: Replacement Check 2-16 [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)
Page 69 Check system. Then press [F1] key ..*** Bad check sum (CMOS) *** Check system. Then press [F1] key ..*** Bad check sum (ROM) *** Check system. Then press [F1] key ..QOSMIO F20 Maintenance Manual (960-526) [CONFIDENTIAL] 2-17...
Page 70 (15) DMAC #2 ERROR (16) PIC #1 ERROR (17) PIC #2 ERROR (18) KBC ERROR (19) HDC ERROR (20) HDD #0 ERROR (21) HDD #1 ERROR (22) TIMER INTERRUPT ERROR (23) RTC UPDATE ERROR 2-18 [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)
Page 71 The D port status is displayed in the following form; 6. When the D port status is FFFFh (normal status), go to Procedure 4. 7. When the D port status falls into any status in Table 2-4 except FFFFh, execute Check QOSMIO F20 Maintenance Manual (960-526) [CONFIDENTIAL] 2-19...
Page 72 F003h Transits to System BIOS IRT. BIOS rewrite process Initialization of ICHM. D31 DRAM configuration Permission of cache (L1 cache only) Memory clear Transition to real mode and copy of BIOS to RAM 2-20 [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)
Page 73 Read 1 sector of the root directory Retrieval of entry of “CHGBIOSA.EXE” /“CHGFIRMA.EXE” from the sector read. Reading of EXE header of “CHGBIOSA.EXE ” and “CHGFIRMA.EXE ” Key input when error occurred. Execution of “CHGBIOSA.EXE ” and “CHGFIRMA.EXE ” QOSMIO F20 Maintenance Manual (960-526) [CONFIDENTIAL] 2-21...
Page 74 Storing the size of DRAM F103h Branch of resuming (only in Cold When a CMOS error is detected, it does Boot) not resume. If “resume status code” is not set, no resume occurs. 2-22 [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)
Page 75 Test of PIT channel 1 (Check whether the refresh signal works properly in 30 micro-s refresh interval.) The system halts when the time is out. Test of PIT channel 2 (Check whether the speaker gate works properly) QOSMIO F20 Maintenance Manual (960-526) [CONFIDENTIAL] 2-23...
Page 76 Initialization of temperature control information initialization KBC initialization VGA display off, Reset control Sound initialization HC initialization, USB device connection recognition and initialization Control of built-in LAN permission/prohibition PIC initialization PIC test Password Initialization 2-24 [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)
Page 77 Task generation for waiting PCI_CONFIGURATION completion Initialization of H/W needed after HDD initialization sequence start PCI configuration Enabling power off Output code generation F10Bh FIRST_64KB_CHECK (Check of first 64KB memory) F10Ch INIT_INT_VECTOR (Initialization of vectors) QOSMIO F20 Maintenance Manual (960-526) [CONFIDENTIAL] 2-25...
Page 78 Initialization of DMAC F11Ah F11Bh F11Ch BOOT_PASSWORD (password check) (In the case of “Reboot”) Waiting for HDD initialization completion Check of key input during IRT (waiting for KBC initialization completion) ATA priority initialization 2-26 [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)
Page 79 Waiting for completion of setting clock generator When error occurred, halts at DPORT=F11FH Cancel of NMI Mask TIT check sum Clear of the IRT flag of Runtime side Update of check sum of Runtime side QOSMIO F20 Maintenance Manual (960-526) [CONFIDENTIAL] 2-27...
Page 80 Final decision of USB FDD drive information Post processing of PRE_BOOT_SETUP Clear of PWRBTN_STS Enabling POWER Button Measure for chip set defective F120h Clear of IRT status Update of check sum of Runtime side FFFFh 2-28 [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)
Page 81 Resume error check in suspend mode. Checks if during IRT processing. Checks if external option ROM is exist Execution of driver for suspend Clear of data for Remote Lockout Storing of USB register Stop of HC QOSMIO F20 Maintenance Manual (960-526) [CONFIDENTIAL] 2-29...
Page 82 Waiting for completion of suspending for HDD password F13Ah Prohibition of PCI arbiter Setting of Wakeup event Power-off of PC card Re-setting backup current Forced off of fan Checks whether off-process for resume is needed 2-30 [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)
Page 83 Calculates the checksum of system F13Dh BIOS in the IRT side ( Checksum does not match during IRT) Setting status of suspend completion Prohibition of L1 & L2 Power off (Completion of BIOS process) QOSMIO F20 Maintenance Manual (960-526) [CONFIDENTIAL] 2-31...
Page 84 Dividing of process for measuring of IRT time Setting to clock generator Initializing of CPU Updating micro-code Judging of CPU type Check of Geyserville support Sets the CPU clock to High. Setting of Graphics Aperture Size Recovery of PIC register 2-32 [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)
Page 85 Resume error DPORT = F17Bh Executing of dividing process of device detection of PC card Resume error when HDD is mounted Check of HDD pack connection DPORT=F172h Start of IDE device resume sequence QOSMIO F20 Maintenance Manual (960-526) [CONFIDENTIAL] 2-33...
Page 86 Setting battery saving mode Setting of date Waiting for the completion of Bluetooth initializing Renewal of Wakeup factor of DMI and SM-BIOS structure table Closing PCI device configuration area Cache control 2-34 [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)
Page 87 Acquires Wake Up Vector address. Clears key buffer. Renewal of date/time ACPI mode on Recovery of write-protected status before. FFFFh (In ACPI mode / not in ACPI mode) Returning to the main process QOSMIO F20 Maintenance Manual (960-526) [CONFIDENTIAL] 2-35...
Page 88 If an error is detected during these tests, go to Procedure 4. Procedure 4 Replacement Check The system board may be damaged. Disassemble the computer following the steps described in Chapter 4, Replacement Procedures and replace the system board with a new one. 2-36 [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)
Page 89: Usb Fdd Troubleshooting
FDD still does not function properly after cleaning, go to Procedure 2. Detailed operation is given in Chapter 3, Tests and Diagnostics. If the test program cannot be executed on the computer, go to Procedure 3. QOSMIO F20 Maintenance Manual (960-526) [CONFIDENTIAL] 2-37...
Page 90 “write enable”. If any other message appears, perform Check 2. Write protected Check 2 Make sure the floppy disk is formatted correctly. If it is, go to Procedure 3. 2-38 [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)
Page 91 The UA board may be defective or damaged. Replace it with a new one. If the USB FDD is still not functioning properly, perform Check 5. Check 5 Replace the system board with a new one following the steps in Chapter 4, Replacement Procedures. QOSMIO F20 Maintenance Manual (960-526) [CONFIDENTIAL] 2-39...
Page 92: Hdd Troubleshooting
User’s Manual. Procedure 1 Partition Check Insert the Toshiba MS-DOS system disk and start the computer. Perform the following checks: Type C: and press Enter. If you cannot change to drive C, go to Check 2. If you Check 1 can change to drive C, go to Procedure 2.
Page 93 The 2.5” HDD and the connector of the system board may be disconnected. Insert the connectors firmly. (Refer to the steps described in Chapter 4, Replacement Procedures for disassembling.) If they are firmly connected, go to Procedure 3. QOSMIO F20 Maintenance Manual (960-526) [CONFIDENTIAL] 2-41...
Page 94 Using the Diagnostic Disk, format the 2.5” HDD with a format option (physical format). If the HDD is formatted, set the 2.5” HDD partition using MS-DOS FDISK command. If you cannot format the 2.5” HDD using the test program, go to Procedure 4. 2-42 [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)
Page 95 HDD - ECC RECOVER ENABLE HDD - DRIVE NOT READY HDD - WRITE FAULT HDD - STATUS ERROR HDD - BAD SECTOR HDD - ACCESS TIME ERROR HDD - NO HDD HDD - DMA CRC ERROR QOSMIO F20 Maintenance Manual (960-526) [CONFIDENTIAL] 2-43...
Page 96 Chapter 4, Replacement Procedures and check the operation. If the problem still exists, perform Check 3. Check 3 The system board may be damaged. Replace it with a new one following the instructions in Chapter 4, Replacement Procedures. 2-44 [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)
Page 97: Keyboard Troubleshooting
Chapter 4, Replacement Procedures. If the problem still exists, perform Check 3. Check 3 The system board may be damaged. Replace it with a new one following the instructions in Chapter 4, Replacement Procedures. QOSMIO F20 Maintenance Manual (960-526) [CONFIDENTIAL] 2-45...
Page 98: Touch Pad Troubleshooting
Procedures. If the problem still exists, replace the touch pad flexible cable with a new one. If the problem still exists, perform Check 3. Check 3 The system board may be damaged. Replace it with a new one following the instructions in Chapter 4, Replacement Procedures. 2-46 [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)
Page 99: Display Troubleshooting
The Display Test program is stored on the computer’s Diagnostics disk. This program checks the display controller on the system board. Refer to Chapter 3, Tests and Diagnostics for details. If an error is detected, go to Procedure 3. QOSMIO F20 Maintenance Manual (960-526) [CONFIDENTIAL] 2-47...
Page 100 Disassemble the computer following the steps described in Chapter 4, Replacement Procedures. If the connection is loose, reconnect firmly and restart the computer. If there is still an error, go to Procedure 4. 2-48 [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)
Page 101 Chapter 4, Replacement Procedure. If the problem still exists, perform Check 6. Check 6 The system board may be defective or damaged. Replace it with a new one following the instructions in Chapter 4, Replacement Procedure. QOSMIO F20 Maintenance Manual (960-526) [CONFIDENTIAL] 2-49...
Page 102: Optical Drive Troubleshooting
Chapter 4. If the problem still occurs, perform Check 3. Check 3 The system board may be faulty. Replace it with a new one following the instructions in Chapter 4, Replacement Procedure. 2-50 [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)
Page 103: Modem Troubleshooting
The MDC may be faulty. Replace it with a new one following the steps in Chapter 4. If the problem still occurs, perform Check 4. Check 4 The system board may be faulty. Replace it with a new one following the instruction in Chapter 4, Replacement Procedure. QOSMIO F20 Maintenance Manual (960-526) [CONFIDENTIAL] 2-51...
Page 104: Lan Troubleshooting
The LAN harness may be faulty. Replace it with a new one. If the problem still occurs, perform Check 5. Check 5 The system board may be faulty. Replace it with a new one following the steps in Chapter 4, Replacement Procedure. 2-52 [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)
Page 105: Wireless Lan Troubleshooting
LAN. Perform the test following the instructions described in Chapter If the computer passes the test, the function is correctly working. If the computer does not pass the test, perform Procedure 2. QOSMIO F20 Maintenance Manual (960-526) [CONFIDENTIAL] 2-53...
Page 106 LAN card. If the wireless LAN antenna cables are disconnected, connect them firmly and perform Procedure 1. If the problem still occurs, go to the procedure 3. 2-54 [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)
Page 107 Chapter 4, Replacement Procedures. If the problem still exists, perform Check 3. Check3 Replace the system board with a new one following the instructions in Chapter 4, Replacement Procedures. QOSMIO F20 Maintenance Manual (960-526) [CONFIDENTIAL] 2-55...
Page 108: Sound Troubleshooting
The connection of the sound system is shown in the following figure. As the connection may be defective, disassemble the computer following the steps in Chapter 4, Replacement Procedures and check each connection. If the problem still occurs, go to Procedure 3. 2-56 [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)
Page 109 Chapter 4, Replacement Procedures. If the problem still occurs, perform Check 4. Check 4 The system board may be faulty. Replace it with a new one following the instructions in Chapter 4, Replacement Procedures. QOSMIO F20 Maintenance Manual (960-526) [CONFIDENTIAL] 2-57...
Page 110: Tv Tuner Troubleshooting
Chapter 4, Replacement Procedures. If the problem still occurs, perform Check 6. Check 6 The system board may be faulty. Replace it with new one following the instructions in Chapter 4, Replacement Procedures. 2-58 [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)
Page 111: Tests And Diagnostics
Chapter 3 Tests and Diagnostics [CONFIDENTIAL]...
Page 112 3 Tests and Diagnostics 3-ii [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)
Page 113 CD-ROM/DVD-ROM Test ..................3-34 3.18 Error Code and Error Status Names................3-35 3.19 Hard Disk Test Detail Status ..................3-38 3.20 Only One Test ......................3-40 3.20.1 Program Description................3-40 3.20.2 Operations ................... 3-40 QOSMIO F20 Maintenance Manual (960-526) [CONFIDENTIAL] 3-iii...
Page 114 IEEE1394 test..................3-84 3.30 Sound Test Program ....................3-85 3.30.1 Sound (Standard) test................3-85 3.30.2 Sound (Legacy) test................3-87 3.30.3 CD Sound (Standard) test ..............3-88 3.30.4 CD Sound (Legacy) test............... 3-90 3.31 SETUP........................3-91 3-iv [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)
Page 115 3 Tests and Diagnostics 3.31.1 Function Description................3-91 3.31.2 Accessing the SETUP Program............. 3-92 QOSMIO F20 Maintenance Manual (960-526) [CONFIDENTIAL]...
Page 116 Table 3-5 Error message....................3-76 Table 3-6 Error code for Bluetooth test (BD_ADDR)............. 3-77 Table 3-7 Error code for Bluetooth test (BD_ADDR of the DUT) ........3-81 Table 3-8 Common error code..................3-83 3-vi [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)
Page 117 3 Tests and Diagnostics QOSMIO F20 Maintenance Manual (960-526) [CONFIDENTIAL] 3-vii...
Page 118: The Diagnostic Test
? EXIT TO MS-DOS The DIAGNOSTIC TEST MENU contains the following functional tests: ? SYSTEM TEST ? MEMORY TEST ? KEYBOARD TEST ? DISPLAY TEST ? FLOPPY DISK TEST ? PRINTER TEST ? ASYNC TEST QOSMIO F20 Maintenance Manual (960-526) [CONFIDENTIAL]...
Page 119 ? A USB test module (USB test ) ? A USB cable (USB test) ? An external CRT monitor (Expansion test) ? A CD test media TOSHIBA CD-ROM TEST DISK or ABEX TEST CD-ROM (Sound test) ? A DVD test media (DVD-ROM TEST DISK TSD-1) (Sound test)
Page 120: H/W(Hardware) Initial Information Setting Tool
? The Diagnostics Disk (Main T&D) 3.1.3 Heatrun test program The heatrun test starts automatically after the selection. You will need the following equipment to perform this program. ? The Diagnostics Disk (Main T&D) QOSMIO F20 Maintenance Manual (960-526) [CONFIDENTIAL]...
Page 121: Executing The Diagnostic Test
To execute this program, select 1-Repair Main (T&D) and press Enter in the startup menu, then the following menu appears. TOSHIBA personal computer XXXXXX DIAGNOSTICS version X.XX (c) copyright TOSHIBA Corp. 20XX DIAGNOSTICS MENU : 1 - DIAGNOSTIC TEST 2 – ONLY ONE TEST...
Page 122 Set the highlight bar to 1, and press Enter. The following DIAGNOSTIC TEST MENU will appear: TOSHIBA personal computer XXXXXX DIAGNOSTICS version X.XX (c) copyright TOSHIBA Corp. 20XX DIAGNOSTIC TEST MENU : 1 - SYSTEM TEST 2 - MEMORY TEST...
Page 123: Executing The Diagnostic Test
Selecting NO returns the process to the subtest menu after the test is complete. Use the up and down arrow keys to move the cursor to “ERROR STOP”. Use the right and left arrow keys to move the cursor to the desired option and press Enter. [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)
Page 124: H/W Initial Information Setting Tool
3 ………………………… DMI information save 4 ………………………… DMI information recovery 8 ………………………… System configuration display 9 ………………………… E2PROM test (MAC/GUID/DMI) ****************************************************************** ... Press test number [1,3,4,8,9] ? For more details on this test, refer to the section 3.3. QOSMIO F20 Maintenance Manual (960-526) [CONFIDENTIAL]...
Page 125: Heatrun Test Program
3 Tests and Diagnostics 3.2 Executing the Diagnostic Test 3.2.3 Heatrun test program Heatrun test starts executing the same subtests as RUNNING TEST. For more details on this test, refer to the section 3.4. [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)
Page 126: Setting Of The Hardware Configuration
6. “Write data OK (Y/N) ?” is displayed. To write the DMI information to the Flash ROM, press Y, and then Enter. 7. “Create DMIINFO TXT (Y/N) ?” is displayed. Press Y, then the DMI information (text data) is written to the Floppy disk, etc. QOSMIO F20 Maintenance Manual (960-526) [CONFIDENTIAL]...
Page 127: Setting Of The Hardware Configuration
This subtest writes all the DMI data in the floppy disk into the new system board. NOTE: Since the data of UUID is updated every time when this subtest, DMI information recovery, is done, the saved UUID data is not written. 3-10 [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)
Page 128 For more details on the system configuration information, refer to “3.25 System configuration”. Subtest 09 E2PROM test (MAC/GUID/DMI) It checks automatically whether the MAC address, GUID of IEEE1394 and DMI information are written. QOSMIO F20 Maintenance Manual (960-526) [CONFIDENTIAL] 3-11...
Page 129: Heatrun Test
NOTE: The test result (Errorlog.txt) is stored in the floppy disk. The result is displayed in the same format as Log Utilities. For more details of the format, refer to 3.22 Log Utilities. 3-12 [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)
Page 130: Subtest Names
Gradation for LCD Gradation & Mode test for VGA All dot on/off for LCD “H” pattern display LCD Brightness FLOPPY DISK Sequential read Sequential read/write Random address/data Write specified address Read specified address QOSMIO F20 Maintenance Manual (960-526) [CONFIDENTIAL] 3-13...
Page 131: Subtest Names
W-R-C specified address REAL TIMER Real time Backup memory Real time carry NDP test EXPANSION PCMCIA wrap around [Not supported] RGB monitor ID CD-ROM Sequential read /DVD-ROM Read specified address Random address/data RW 1point W/R/C 3-14 [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)
Page 132: System Test
Then press Enter. The following message will appear. *** Test Fan Revolution High speed Start Make sure the fan rotates at high speed and the message of fan revolution for it changes. Then press Enter. QOSMIO F20 Maintenance Manual (960-526) [CONFIDENTIAL] 3-15...
Page 133: System Test
Serial Number : XXXXXXXX Model Number : XXXXXX-XXXXX PCN/BND Number : XXXXXXXXXXXX/XXX____ UUID Number : XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX Press [Enter] to EXIT To exit this subtest and return to the SYSTEM test menu, press Enter. 3-16 [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)
Page 134: Memory Test
16KB read buffer and compared the data in the buffers. The read buffer starts from 0001 and the comparison is continued with the following read buffer addresses: 0001, 0003, 0005, 0007, 0009, 000b, 000d and 000f. QOSMIO F20 Maintenance Manual (960-526) [CONFIDENTIAL] 3-17...
Page 135: Keyboard Test
Appendix D. KEYBOARD TEST IN PROGRESS 302000 Scan code Character code Keytop Ins Lock Caps Lock Num Lock Scroll Lock Ctrl Left Shift Right Shift PRESS [Enter] KEY 3-18 [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)
Page 136: Display Test
This subtest displays bands of gradations for mixed colors, then for red, green, and blue. Next, it displays eight solid colors full screen: red, semi-red, green, semi- green, blue, semi-blue, white, and semi-white. Each color displays for three seconds. QOSMIO F20 Maintenance Manual (960-526) [CONFIDENTIAL] 3-19...
Page 137: Display Test
Subtest 05 All dot on/off for LCD This subtest displays an all-white screen then an all-black screen. The display changes automatically every three seconds and the screen returns to the DISPLAY TEST menu. 3-20 [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)
Page 138 LCD Brightness The LCD brightness changes in the following order: Super-Bright —> Bright —> Semi-Bright —> Bright —> Super-Bright After displaying with Super-Bright of LCD brightness, the screen returns to the DISPLAY TEST menu. QOSMIO F20 Maintenance Manual (960-526) [CONFIDENTIAL] 3-21...
Page 139: Floppy Disk Test
: XXX SUB-TEST MENU : 01 - Sequential read 02 - Sequential read/write 03 - Random address/data 04 - Write specified address 05 - Read specified address 99 - Exit to DIAGNOSTIC TEST MENU 3-22 [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)
Page 140: Floppy Disk Test
This subtest writes the data specified by an operator to a specified track, head, and address. Subtest 05 Read specified address This subtest reads data from a track, head, and address specified by an operator. QOSMIO F20 Maintenance Manual (960-526) [CONFIDENTIAL] 3-23...
Page 141: Printer Test
Select the printer channel number, and press Enter to execute the selected subtest. Subtest 01 Ripple pattern This subtest prints characters for codes 20h through 7Eh line-by-line while shifting one character to the left at the beginning of each new line. 3-24 [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)
Page 142: Printer Test
NOTE: To execute this subtest, a printer wraparound connector must be connected to the computer’s printer port. This subtest checks the output and bi-directional modes of the data control and status lines through the parallel port wraparound connector (34M741986G01). (Both output and bi-directional modes are tested.) QOSMIO F20 Maintenance Manual (960-526) [CONFIDENTIAL] 3-25...
Page 143: Async Test
Subtest 03 Wrap around (on board) NOTE: To execute this subtest, a RS-232C wraparound connector must be connected to the RS-232C port. This subtest checks the data send/receive function through the wraparound connector. 3-26 [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)
Page 144: Hard Disk Test
2. The following message appears for whether or not the HDD status is displayed on the screen. The HDC status is described in section 3.19. Select 1 or 2. Detail status display (1:no, 2:yes) QOSMIO F20 Maintenance Manual (960-526) [CONFIDENTIAL] 3-27...
Page 145: Hard Disk Test
1. Forward sequential 2. Reverse sequential 3. Random Subtest 03 Random address/data This subtest writes random data in a random length to random addresses. This data is then read and compared to the original data. 3-28 [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)
Page 146 This subtest writes specified 2-byte data to all of the cylinders on the HDD. Subtest 09 W-R-C specified address This subtest writes data to a specified cylinder and head on the HDD, then reads the data and compares it to the original data. QOSMIO F20 Maintenance Manual (960-526) [CONFIDENTIAL] 3-29...
Page 147: Real Timer Test
Writes 1-bit of “on” data (01h through 80h) to address 0Eh through 7Fh Writes 1-bit of “off” data (FEh through 7Fh) to address 0Eh through 7Fh Writes the data pattern AAh and 55h to the address 0Eh to 7Fh QOSMIO F20 Maintenance Manual (960-526) [CONFIDENTIAL] 3-29...
Page 148: Real Timer Test
3 Tests and Diagnostics 3.14 Real Timer Test Then the subtest reads and compares this data with the original data. 3-30 [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)
Page 149 Current time : 23:59:58 The real time increments are automatically executed and the following is displayed: Current date : 01-01-2000 Current time : 00:00:00 PRESS [Enter] KEY TO EXIT TEST To exit the test, press Enter. QOSMIO F20 Maintenance Manual (960-526) [CONFIDENTIAL] 3-31...
Page 150: Ndp Test
To execute the NDP test, select 10 from the DIAGNOSTICS TEST MENU, press Enter and follow the directions on the screen. Subtest 01 This test checks the following functions of NDP: ? Control word ? Status word ? Bus ? Addition ? Multiplication 3-32 [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)
Page 151: Expansion Test
–– Speaker line 00004 40,80 Wait line (40<xx<80) 00005 Other lines (BSY#, BVD1) NN=21, 00 NOTE: When selecting the subtest 01, the following message will appear: Test slot number select (1:slot0, 2:slot1, 0:slot0&1)? QOSMIO F20 Maintenance Manual (960-526) [CONFIDENTIAL] 3-33...
Page 152 The judgment of acquisition is based on the panel data. In simultaneous display mode or internal display mode, in which the panel data is acquired, this subtest will fail. Therefore, make sure only the external display is selected when executing this subtest. 3-34 [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)
Page 153: Cd-Rom/Dvd-Rom Test
To execute the CD-ROM/DVD-ROM test, select 12 from the DIAGNOSTICS TEST MENU, press Enter and follow the directions on the screen. NOTE: For the subtest 01, 02 and 03, use the TOSHIBA CD-ROM TEST DISK TDY-01 or ABEX TEST CD-ROM TCDR-702 and DVD-ROM TEST DISK TSD-1. For the subtest 04, use a CD-RW on the market.
Page 154: Error Code And Error Status Names
HUB - CLEAR FEATURE ERROR HUB - CLEAR FEATURE1 ERROR HUB - SET FEATURE ERROR (Enab.) HUB - CLEAR FEATURE2 ERROR USB - OVER CURRENT ERROR USB - GET DESCR.ERROR(SECOND) Display VRAM SIZE NOT SUPPORT 3-36 [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)
Page 155 HDD - RECORD NOT FOUND ERROR HDD - ECC ERROR HDD - HDC ERROR HDD - SEEK ERROR HDD - TIME OUT ERROR HDD - ECC RECOVER ENABLE HDD - DRIVE NOT READY QOSMIO F20 Maintenance Manual (960-526) [CONFIDENTIAL] 3-37...
Page 156 ZV_CONT# ERROR CD-ROM BAD COMMAND /DVD-ROM ILLEGAL LENGTH UNIT ATTENTION MEDIA CHANGE REQUEST MEDIA DETECTED ADDITIMAL SENSE BOUNDARY ERROR CORRECTED DATA ERROR DRIVE NOT READY SEEK ERROR TIME OUT RESET ERROR ADDRESS ERROR 3-38 [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)
Page 157: Hard Disk Test Detail Status
(Corrected data) “1” … Correctable data error is corrected. “0” … Not used (Index) “1” … Index is sensed. “0” … Normal (Error) “1” … The previous command was terminated with an error. QOSMIO F20 Maintenance Manual (960-526) [CONFIDENTIAL] 3-39...
Page 158 “1” … Illegal command error or command abort. “0” … The hard disk found track 0 during a recalibrate (Track 0) command. “1” … The hard disk could not find track 0 during a recalibrate command. —— Not used 3-40 [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)
Page 159: Only One Test
9 .... Common Test ***************************************************************** ..Press test number [1-9] ? Select the subtest number you want to test and press Enter. To return to the DIAGNOSTIC TEST menu, select 9 and press Enter. QOSMIO F20 Maintenance Manual (960-526) [CONFIDENTIAL] 3-41...
Page 160 Press Del + Enter to end the test. <<<< Press Key Display >>>> IF TEST OK, Press [Dell][Enter]key NOTE: The picture displayed on your computer may be slightly different from the figure shown above. 3-42 [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)
Page 161 <BUTTONS> displays appear on the right side one by one. The parameters appear above the <BUTTONS> (1) or (2) corresponding to the pressed touch pad switch highlights. To end this subtest, press two touch pad switches at the same time. QOSMIO F20 Maintenance Manual (960-526) [CONFIDENTIAL] 3-43...
Page 162 Unless the right front operation panel button is pressed, this operation is repeated. After checking all front operation panel buttons, the screen returns to the ONLY ONE TEST menu automatically. 3-44 [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)
Page 163 OK message appears in the display if the test ends without fail. NG message appears in the display if an error is found during the test. Confirm the connection of cable, and then execute the test again. QOSMIO F20 Maintenance Manual (960-526) [CONFIDENTIAL] 3-45...
Page 164 Press Enter and following message appears in the display. Check [PowerSW-LED]= Blue Check if the Power Switch LED lights in Blue. Press any key and the following message appears in the display. Check [DC-IN]&[Power]&[Main Battery]LED= Green/Orange! 3-46 [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)
Page 165 3 Tests and Diagnostics Check if the each LED lights in the same color shown in the display (Message switches Green <-> Orange). Press Enter to return to the ONLY ONE TEST menu. QOSMIO F20 Maintenance Manual (960-526) [CONFIDENTIAL] 3-47...
Page 166: Head Cleaning
2. Remove the Diagnostics Disk from the FDD, then insert the cleaning disk and press Enter. 3. When the message appears, the FDD head cleaning has begun. cleaning start 4. The display automatically returns to the DIAGNOSTIC MENU when the program is completed. 3-48 [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)
Page 167: Log Utilities
5. FDD/HDD or memory address (ADDR) 6. Write data (WD) 7. Read data (RD) 8. HDC status (HSTS) 9. Error status name (ERROR STATUS NAME) If the power switch is turned off, the error information will be lost. QOSMIO F20 Maintenance Manual (960-526) [CONFIDENTIAL] 3-49...
Page 168: Operations
The 7 key writes the log information to a floppy disk. 3. In the case of “error retry OK”, a capital “R” will be placed at the beginning of the error status. However, it is not added to the error count. 3-50 [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)
Page 169: Running Test
2. To execute the test, press Y and Enter. To cancel the test, press N and Enter. If you select the selectable tests, follow the instruction message in the display. 3. After selecting the selectable tests, the running test starts automatically. To terminate the program, press Ctrl + Break. QOSMIO F20 Maintenance Manual (960-526) [CONFIDENTIAL] 3-51...
Page 170: Floppy Disk Drive Utilities
This program displays the contents of the floppy disk and the designated sectors of the hard disk on the display. 4. HDD ID READ This program reads the hard disk ID and displays hard disk information. 3-52 [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)
Page 171: Operations
After the floppy disk is formatted, the following message will appear: Format complete Another format (1:Yes/2:No) ? (e) Typing 1 displays the message from step (c) above. Typing 2 returns the test to the DIAGNOSTIC MENU. QOSMIO F20 Maintenance Manual (960-526) [CONFIDENTIAL] 3-53...
Page 172 Copy complete Another copy (1:Yes/2:No) ? (g) To copy another disk, type 1 and the message from step (a) is displayed again. Entering 2 returns the test program to the DIAGNOSTIC MENU. 3-54 [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)
Page 173 (i) Select a drive number and the following message will be displayed. ---Max. address --- [ LBA ] = XXXXXXXXX LBA number ???????? (j) Set the LBA number you want to dump. The system will access the disk and dump a list. QOSMIO F20 Maintenance Manual (960-526) [CONFIDENTIAL] 3-55...
Page 174 5. HDD ID READ program Selecting HDD ID displays the following HDD ID configuration: [HDD ID Read (VX.XX)] [Drive #1] Model No. = XXXXXXX Press [Enter] key Press Enter to return to the FDD UTILITIES MENU. 3-56 [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)
Page 175: System Configuration
14. The number of ASYNC ports 15. Math co-processors 16. Floppy Disk Drive [Track/Head/Sector] 17. Hard Disk Drive [Sector/Drive size/Manufacture code] 18. Optical Disk Drive [Maker/Drive type/Manufacture code/Product code] 19. T&D total version 20. Date/Time QOSMIO F20 Maintenance Manual (960-526) [CONFIDENTIAL] 3-55...
Page 176: Operations
= XXXXX, (XXXXX GB) [XXXXXXXXXXXXXXXXX] - ODD = XXXX XXXXXXXX XXXXXXXXX [XXXXXXXXXXXX] - T&D Total Version = VX.XX Press [Enter] Key [Date = XXXX-YY-ZZ, XX:YY:ZZ] Press Enter to return to the DIAGNOSTIC MENU. 3-56 [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)
Page 177: Wireless Lan Test Program (Intel-Made B/G)
: Intel Calexico 802.11b/g (MoW) G-code : G36C0000X310 PBA No. : C55369 ************************************************************ If a defective is found during the test, NG message will appear in the display. Press any key to return to the test menu. QOSMIO F20 Maintenance Manual (960-526) [CONFIDENTIAL] 3-57...
Page 178 When a defective is detected in the test, following typical cause is considered. ? Bad of wireless LAN card ? Defective wireless LAN card ? Disappearance of MAC address data Check the connection and execute the subtest again. 3-58 [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)
Page 179 Press any key to return to the test menu. When a defective is detected in the test, following typical cause is considered. Bad connection of wireless LAN card Bad connection of wireless LAN antenna cable (Main/Aux) QOSMIO F20 Maintenance Manual (960-526) [CONFIDENTIAL] 3-59...
Page 180 This subtest checks SKU information, MAC address, connection and communication of wireless LAN antenna of Calexico 802.11b/g card. The test stops at when a defective is found. For more details, refer to each subtest. 3-60 [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)
Page 181: Wireless Lan Test Program (Intel-Made A/B/G)
LAN card is described. ************************************************************ Module : Intel Calexico 802.11a/g (MoW) G-code : G36C00018510 PBA No. : C67287 ************************************************************ Press any key to return to the test menu. QOSMIO F20 Maintenance Manual (960-526) [CONFIDENTIAL] 3-61...
Page 182 If a defective is found during the test, following message will appear in the display. *********************MAC CHECK****************************** ERROR: MAC all F MAC = XXXXXXXXXXXX ************************************************************ ************************************************************ MAC Address Check : NG !! ************************************************************ 3-62 [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)
Page 183 When a defective is found during the test, NG message will appear in the display. Press any key and following message will appear in the display. Check which antenna (Main/Aux) is defective. ************************************************************ QOSMIO F20 Maintenance Manual (960-526) [CONFIDENTIAL] 3-63...
Page 184 When a defective is detected in the test, following typical cause is considered. ? Bad connection of wireless LAN card ? Bad connection of wireless LAN antenna cable (Main) ? Bad environment for wireless LAN communication (Interference/ obstruction) ? Defective wireless LAN card 3-64 [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)
Page 185 3.27 Wireless LAN Test Program (Intel-made a/b/g) 3 Tests and Diagnostics Check the connection and condition, and execute the subtest again. QOSMIO F20 Maintenance Manual (960-526) [CONFIDENTIAL] 3-65...
Page 186 Calexico 802.11b card and communication test of Calexico 802.11a and Calexico 802.11g. The test stops at when a defective is found. For more details, refer to each subtest. 3-66 [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)
Page 187: Wireless Lan Test Program (Askey-Made)
Please exchange for DUT media 2 ************************************************************ Please input the “S” key and push the “Enter” key : 3. Take out the program disk 1 and insert program disk 2. Then, press S and Enter. QOSMIO F20 Maintenance Manual (960-526) [CONFIDENTIAL] 3-67...
Page 188 When a defective is detected in the test, following typical cause is considered. ? Bad connection of wireless LAN card ? Using a wrong wireless LAN card (Using unspecified card) ? Defective wireless LAN card 3-68 [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)
Page 189 3.28 Wireless LAN Test Program (Askey-made) 3 Tests and Diagnostics Check the connection and execute the subtest again. QOSMIO F20 Maintenance Manual (960-526) [CONFIDENTIAL] 3-69...
Page 190 11a Communication Test : NG !! Please refer to log. txt ************************************************************ Press any key to return to the test menu. When a defective is found, open the log file (log.txt) and check the result. 3-70 [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)
Page 191 This subtest checks SKU information, MAC address, connection and communication of wireless LAN antenna of Atheros 802.11a mode, Atheros 802.11b mode and Atheros 802.11g mode. The test stops at when a defective is found. For more details, refer to each subtest. QOSMIO F20 Maintenance Manual (960-526) [CONFIDENTIAL] 3-71...
Page 192: Lan/Modem/Bluetooth/Ieee1394 Test Program
######### i82562 ICHx GbE (i82540) Diagnostics program ##### #################################################################### 1 .... (i82562 + ICHx) 2 .... (GbE) ******************************************************************** ..Press test number[1-2] ? Press the number you want to test and press Enter. 3-72 [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)
Page 193 < TRANSMIT > < RECEIVE > NOTE: The menu displayed on your computer may be slightly different from the one shown above. If a defective is found, NG message will appear in the display. QOSMIO F20 Maintenance Manual (960-526) [CONFIDENTIAL] 3-73...
Page 194 1000Base Auto-negotiation TxRx Test CE Test Complete NOTE: The menu displayed on your computer may be slightly different from the one shown above. If a defective is found, NG message will appear in the display. 3-74 [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)
Page 195: Modem Test
RJ11 Connection Check (LED) (Operator’s Check LED) test will be executed, and the following message will appear: ...Press Key (Y = OK , N =NG) If the color of the LED of the connection checker is orange, press Y. Otherwise, press N. QOSMIO F20 Maintenance Manual (960-526) [CONFIDENTIAL] 3-75...
Page 196: Bluetooth Test
..Press test number[1,3,T] ? Press 1 or 3 key to perform the corresponding subtest. To quit the Bluetooth test program, eject the floppy disk and turn the computer off while the menu above is displayed. 3-76 [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)
Page 197 1 to select the test and press Enter. The following message will appear: ---------------------------------------------------------------------------- Bluetooth Subsystem T&D for PCSE(BD_ADDR) VerX.XX Copyright (C) by TOSHIBA ---------------------------------------------------------------------------- Initializing … When the machine has passed the test, it displays BD_ADDR. If BD_ADDR has no problem, the following message is displayed.
Page 198 3 Tests and Diagnostics 3.29 LAN/Modem/Bluetooth/IEEE1394 Test Program If the target machine has any problem, it displays Error message. The following message is displayed. ---------------------------------------------------------------------------- Bluetooth Subsystem T&D for PCSE(BD_ADDR) VerX.XX Copyright (C) by TOSHIBA ---------------------------------------------------------------------------- My BD_ADDR = XXXXXXXXXXXX [h] FFFFFF FFFFFF...
Page 199 Unsupported Remote Feature. 0x1b SCO Offset Rejected. 0x1c SCO Interval Rejected. 0x1d SCO Air Mode Rejected. 0x1e Invalid LMP Parameters. 0x1f Unspecified Error. ** See the Specification of the Bluetooth System for details. QOSMIO F20 Maintenance Manual (960-526) [CONFIDENTIAL] 3-79...
Page 200 Press 3 to select the test and press Enter of the responder machine. The following message will appear: When the test begins, the machine displays BD_ADDR of the DUT. The progress bar appears when the preparation is completed. The following message is displayed. 3-80 [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)
Page 201 Then press Space to start the Bluetooth communication test. When the communication test has been completed without fail, the DUT machine displays BD_ADDR. If the connection with the tester is completed, the progress bar stops. The following message is shown. QOSMIO F20 Maintenance Manual (960-526) [CONFIDENTIAL] 3-81...
Page 202 BD_ADDR of the DUT = XXXXXXXXXXXXX [h] +----------------------+ CCCC M PPPPPP EEEEEE TTTTTTT EEEEEEE MM P O M M M M P M PPPPPP EEEEEE EEEEEEE N N C CCCC LLLLLLL EEEEEE EEEEEEE Testing is finished 3-82 [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)
Page 203 Unsupported Remote Feature. 0x1b SCO Offset Rejected. 0x1c SCO Interval Rejected. 0x1d SCO Air Mode Rejected. 0x1e Invalid LMP Parameters. 0x1f Unspecified Error. ** See the Specification of the Bluetooth System in detail. QOSMIO F20 Maintenance Manual (960-526) [CONFIDENTIAL] 3-83...
Page 204 Not Exist 0x29 Not Exist 0x2a Not Exist 0x2b Not Exist 0x2c Not Exist 0x2d Not Exist 0x2e Not Exist 0x2f Not Exist ** See the Specification of the Bluetooth System in detail. 3-84 [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)
Page 205 0x4c Suspended during Hard ware switch confirmation. 0x4d RSSI value is less than the standard value. 0x4e Holts 0x4f (reserved) ** Number 0x30 to 0x40 are common error codes of the test program. QOSMIO F20 Maintenance Manual (960-526) [CONFIDENTIAL] 3-85...
Page 206: Ieee1394 Test
This program is executed in the responder machine to initialize the responder machine with the IEEE1394 cable connected to the tester machine before executing subtest 01. Subtest03 1394 GUID Display This program checks the GUID of IEEE1394. 3-86 [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)
Page 207: Sound Test Program
ICH4-M + AD1981A Diagnostics program ###### ################################################################# 1 .... Microphone recording & play 2 .... Sine wave 3 .... Line IN recording & play 9 .... Exit to Main ***************************************************************** ..Press test number[1-3,9] ? QOSMIO F20 Maintenance Manual (960-526) [CONFIDENTIAL] 3-85...
Page 208: Cd Sound (Standard) Test
Build data: XXX XX XXXX at XX:XX:XX Loading “mic.wav”. NOTE: The message in the display might have slight difference from those above. The display returns to the Sound (Standard) test menu after the test ends. 3-86 [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)
Page 209: Cd Sound (Legacy) Test
The display returns to the Sound (Standard) test menu after the test ends. 3.30.2 Sound (Legacy) To execute the Sound (Legacy) test, select 2 and press Enter. CAUTION: Sound (Legacy) test is not supported in this model. QOSMIO F20 Maintenance Manual (960-526) [CONFIDENTIAL] 3-87...
Page 210 3.30 Sound Test program 3.30.3 CD Sound (Standard) To execute the CD Sound (Standard) test, press 3 and Enter. Insert the test media (TOSHIBA TEST CD-ROM or ABEX TEST CD-ROM) or music CD on the market (if the test media can not be prepared).
Page 211 This subtest plays sine wave while changing its table from 400Hz to 3KHz and also changing the channel from left speaker to right speaker. The test returns to the CD Sound (Standard) menu after the test ends. QOSMIO F20 Maintenance Manual (960-526) [CONFIDENTIAL] 3-89...
Page 212: Setup
“Device Config.=” of the BIOS SETUP. If the [All Devices] is not selected, music can not be played. 3.30.4 CD Sound (Legacy) To execute the CD Sound (Legacy) test, select 4 and press Enter. CAUTION: Sound (Legacy) test is not supported in this model. 3-90 [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)
Page 213: Setup
8. Configuration 9. Drives I/O (a) Built-in HDD (b) CD-ROM 10. PCI Bus 11. Peripheral (a) Internal Pointing Device 12. LEGACY EMULATION (a) USB KB/Mouse Legacy Emulation (b) USB-FDD Legacy Emulation 13. PCI LAN QOSMIO F20 Maintenance Manual (960-526) [CONFIDENTIAL] 3-91...
Page 214 3 Tests and Diagnostics 3.31 SETUP 3.31.2 Accessing the SETUP Program While pressing ESC, turn on the power. Then press F1. The following display appears. NOTE: *1 This message appears only on the Pentium model. 3-92 [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)
Page 215 2. To accept the default settings, press End and then press Y. NOTE: When you execute the default setting, the following settings are not changed: (1) HDD Mode (2) Password (3) Write Policy QOSMIO F20 Maintenance Manual (960-526) [CONFIDENTIAL] 3-93...
Page 216 This option is used to select Full Power, Low Power or User Setting of the battery save mode. When you select the battery save mode, the followings will appear. Full Power The following shows full power settings. Low Power The following shows low power settings. 3-94 [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)
Page 217 Disables sleep mode. Display Auto Off Use this option to disable or set the duration of the display automatic power off function. This function causes the computer to turn the LCD panel’s illumination off QOSMIO F20 Maintenance Manual (960-526) [CONFIDENTIAL] 3-95...
Page 218 Automatically turns off the power to the LCD panel’s illumination if the panel is not used for the duration set. The duration xx can be set to 1, 3, 5, 10, 15, 20 or 30 minutes. 3-96 [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)
Page 219 This option sets the power saving function of the PCI Express. Auto Saves power consumption, when the PCI Express device is not used while the battery is working. (Default) Disabled Disables the power saving function and gives priority to the performance. QOSMIO F20 Maintenance Manual (960-526) [CONFIDENTIAL] 3-97...
Page 220 3 Tests and Diagnostics 3.31 SETUP Enabled Saves power consumption, when the PCI Express device is not used. 3-98 [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)
Page 221 (*1) CD-ROM refers to an Optical Disk Drive. (b) Network Boot Protocol Use this option to set the starting method via a network. Sets to PXE protocol. (Default) RPL Sets to RPL protocol. QOSMIO F20 Maintenance Manual (960-526) [CONFIDENTIAL] 3-99...
Page 222 Disables the LCD display stretch feature. (c) TV Type This option allows you to select the type of TV. NTSC (Japan) TV in Japanese system NTSC (US) TV in the U.S. system TV in Europe and China system 3-100 [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)
Page 223 = 00:00:00 Alarm Date Option = Disabled Set the parameters for the Auto Power On (automatic power on) function in the “OPTIONS” window. To set the time, use Space bar or BackSpace. Press ? QOSMIO F20 Maintenance Manual (960-526) [CONFIDENTIAL] 3-101...
Page 224 9. Drives I/O This option displays the address and interrupt level for hard disk drive and optical disk drive. It is for information only and cannot be changed. Built-in HDD This cannot be changed. 3-102 [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)
Page 225 3.31 SETUP 3 Tests and Diagnostics CD-ROM This cannot be changed. QOSMIO F20 Maintenance Manual (960-526) [CONFIDENTIAL] 3-103...
Page 226 USB floppy disk is available without the driver. Disabled Disables LEGACY support. 13. PCI LAN This option sets the Enable / Disable of the built-in LAN functions. Enabled Enables built-in LAN functions. (Default) Disabled Disables built-in LAN functions. 3-104 [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)
Page 227 3.31 SETUP 3 Tests and Diagnostics QOSMIO F20 Maintenance Manual (960-526) [CONFIDENTIAL] 3-105...
Page 228: Replacement Procedures
Chapter 4 Replacement Procedures [CONFIDENTIAL]...
Page 229 4 Replacement Procedures 4-ii [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)
Page 230 4.12 Optical drive......................4-35 4.13 Fan..........................4-37 4.14 System board......................4-38 4.15 TV tuner module ...................... 4-42 4.16 GPU heat sink/VG board ..................4-44 4.17 CPU heat sink/CPU....................4-46 4.18 USB board/Speaker....................4-49 QOSMIO F20 Maintenance Manual (960-526) [CONFIDENTIAL] 4-iii...
Page 231 4.24 1 Replacing the 15.4- inch 2- lamp (W-XGA) Samsung fluorescent lamp ..............4-70 4.24.2 Replacing the 15.4- inch 1- lamp (W-XGA) Samsung fluorescent lamp ..............4-74 4.24.3 Replacing the 15.4- inch 1- lamp (W-XGA) Chemei fluorescent lamp............... 4-78 4-iv [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)
Page 232 Figure 4-27 Removing the Modem jack ................4-38 Figure 4-28 Removing the system board ................4-39 Figure 4-29 Removing DC-IN jack and LAN jack.............. 4-40 Figure 4-30 Passing of the cables ..................4-41 Figure 4-31 Removing the TV tuner module............... 4-42 QOSMIO F20 Maintenance Manual (960-526) [CONFIDENTIAL]...
Page 233 Figure 4-52 to 4-56 Replacing Samsung fluorescent lamp (W-XGA 2- lamp)..4-70 to 4-73 Figure 4-57 to 4-61 Replacing Samsung fluorescent lamp (W-XGA 1- lamp)..4-74 to 4-77 Figure 4-62 to 4-66 Replacing Chemei fluorescent lamp (W-XGA 1- lamp) ..4-78 to 4-82 4-vi [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)
Page 234: Overview
This chart shows the order of disassembling computer to remove the object parts. In the case of removing the fan, the parts of 4.2 to 4.8 which are right above the 4.10 RTC battery. QOSMIO F20 Maintenance Manual (960-526) [CONFIDENTIAL]...
Page 235: Safety Precautions
DANGER: 1. In the case of the battery, always use authentic parts or equivalent parts approved by Toshiba. Other batteries may have different specifications that are incompatible with the computer and may result in fire or explosion.
Page 236: Before You Begin
Screw sizes are noted in the text and figures. 9. As all parts have sharp edges and corners, take care not to cut yourself. 10. After replacing an FRU, check that the computer and replaced part operate correctly. QOSMIO F20 Maintenance Manual (960-526) [CONFIDENTIAL]...
Page 237: Disassembly Procedure
Normal pin connectors are used for all other cables. Simply pull out or push in these connectors to disconnect or reconnect. Pressure plate connector Spring connector [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)
Page 238: Assembly Procedure
One Philips screwdriver with type 1 bit (for screws other than above) Tweezers (for lifting screws) Wireless LAN cable remover ESD mats (lay on work table or floor) An ESD wrist strap and heel grounder Anti-static carpet or flooring QOSMIO F20 Maintenance Manual (960-526) [CONFIDENTIAL]...
Page 239: Screw Tightening Torque
Odd numbered length screws: White Special length screw: Blue Grip area “Special length screw” means screws whose length is indicated in an integral number to the first decimal places such as 2.5 mm, 2.8 mm and so on. [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)
Page 240: Screw Notation
S: Super thin head screw (S- THIN HEAD/U- THIN HEAD) T: Tapping screw (TAPPING) U: Other screws (Unique screws: pan head, stud, etc.) Example: B6 … 6mm bind screw ): Description in this manual. QOSMIO F20 Maintenance Manual (960-526) [CONFIDENTIAL]...
Page 241: Battery Pack/Pc Card/Bridge Media
4. Release the battery lock by moving it to the arrow direction. 5. Slide the battery latch to the arrow direction and remove the battery pack. Battery lock Battery latch Battery pack Figure 4-1 Removing the battery pack [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)
Page 242 3. Insert the battery pack into the slot all the way to the end. NOTE: Make sure that the battery pack is securely in place and the battery lock is in the lock position. QOSMIO F20 Maintenance Manual (960-526) [CONFIDENTIAL]...
Page 243: Pc Card
The following describes the procedure for inserting the PC card (See Figure 4-2). 1. Make sure the eject button does not stick out. 2. Insert the PC card and press it until it is securely connected. 4-10 [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)
Page 244: Bridge Media
Figure 4-3 Removing the bridge media Installing the Bridge media The following describes the procedure for inserting the bridge media (See Figure 4-3). 1. Insert a bridge media and press it until it is securely connected. QOSMIO F20 Maintenance Manual (960-526) [CONFIDENTIAL] 4-11...
Page 245: Hdd
2. Remove the following screw fixing the HDD slot cover and remove the HDD slot cover. M2.5? 4B FLAT BIND screw M2.5? 4B FLAT BIND HDD slot cover Figure 4-4 Removing the HDD slot cover 4-12 [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)
Page 246 4. Remove the following screws fixing the HDD assembly. M3? 4S FLAT BIND 5. Detach the HDD holder from the HDD. M3? 4S FLAT BIND F3?4S FLAT BIND HDD holder Figure 4-6 Removing the HDD QOSMIO F20 Maintenance Manual (960-526) [CONFIDENTIAL] 4-13...
Page 247 2. Insert the HDD assembly into the HDD slot and slide it carefully to the connector CN1800 on the system board. 3. Install the HDD slot cover and secure it with the following screw. M2.5? 4B FLAT BIND 4-14 [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)
Page 248: Memory Module
1. Loose the screw (with an e-ring) fixing the memory slot cover. 2. Remove the memory slot cover. 3. Open the left and right latches and remove the memory module. Memory slot cover Screw Latch Memory module Latch Figure 4-7 Removing the memory module QOSMIO F20 Maintenance Manual (960-526) [CONFIDENTIAL] 4-15...
Page 249 3. When the power of the computer is turned on, the computer checks automatically the memory size. Confirm that the new memory is detected correctly. 4. If the memory is not detected, check that it is connected correctly. 4-16 [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)
Page 250: Mdc
1. Connect the Modem cable to the MDC. 2. Connect the MDC to the connector CN3010 on the system board. 3. Secure the MDC with the following screws . M2? 4B S-THIN HEAD QOSMIO F20 Maintenance Manual (960-526) [CONFIDENTIAL] 4-17...
Page 251: Keyboard
2. Insert your finger into the spaces between the speaker cover and the computer. Then, lift up the speaker cover to unlatch and remove it. Speaker cover Figure 4-9 Removing the speaker cover 4-18 [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)
Page 252 M2.5x4B FLAT BIND Figure 4-10 Removing the keyboard 4. Push the latch to release the keyboard and lift the upper side of the keyboard and turn it face down on the palm rest. QOSMIO F20 Maintenance Manual (960-526) [CONFIDENTIAL] 4-19...
Page 253 Keyboard flexible cable Keyboard support plate CN3200 Keyboard Figure 4-11 Removing the keyboard support plate 7. Disconnect the keyboard flexible cable from the connector CN3200 on the system board. 8. Remove the keyboard. 4-20 [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)
Page 254 3. Turn the keyboard face up and put it on the computer. Make sure that there is no space between the keyboard and the computer. 4. Secure the keyboard with the following screws. M2.5? 4B FLAT BIND 5. Install the speaker cover, pressing it. QOSMIO F20 Maintenance Manual (960-526) [CONFIDENTIAL] 4-21...
Page 255: Switch Membrane
1. Slide the switch membrane to install and secure it with the following scre w. M2.5? 4B FLAT BIND screw 2. Connect the switch membrane cable to the connector CN9650 on the system board. 4-22 [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)
Page 256: Display Assembly
(“12” in the figure) ? M2.5? 6B FLAT BIND screw x7 (“6” in the figure) ? M2.5? 4B FLAT BIND screw x4 (“4” in the figure) Figure 4-13 Removing the screws (bottom) QOSMIO F20 Maintenance Manual (960-526) [CONFIDENTIAL] 4-23...
Page 257 Figure 4-14 Removing the cables (bottom) 4. Tun over the computer and open the display and remove four insulators and one glass tape . Insulators Glass tape Figure 4-15 Removing the insulators and glass tape 4-24 [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)
Page 258 ? M2.5? 6B FLAT BIND M2.5 ? 6B FLAT BIND LCD cable M2.5 ? 4B FLAT BIND LCD cable holder Volume cable CN3330 CN5000 Touch pad cable CN3240 Figure 4-16 Removing the screws and cables QOSMIO F20 Maintenance Manual (960-526) [CONFIDENTIAL] 4-25...
Page 259 CAUTION: As the wireless LAN antenna cable is still connected to the wireless LAN card, be careful not to break the antenna cable. Display assembly Wireless LAN antenna cable Base assembly Figure 4-17 Removing the display assembly 4-26 [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)
Page 260 L.H. stick Wireless LAN antenna cable (black) UA board cable Wireless LAN antenna cable (white) CN4610 Figure 4-18 Removing the wireless LAN antenna 11. Disconnect the wireless LAN antenna cables (black and white). QOSMIO F20 Maintenance Manual (960-526) [CONFIDENTIAL] 4-27...
Page 261 4.8 Display assembly 12. Remove the following screws to separate the display from the middle frame . ? M2.5? 6B FLAT BIND M2.5x6B FLAT BIND Display Middle frame Figure 4-19 Removing the display 4-28 [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)
Page 262 10. Connect the touch pad cable to the connector CN3240 and the volume cable to the connector CN3330 on the system board. QOSMIO F20 Maintenance Manual (960-526) [CONFIDENTIAL] 4-29...
Page 263 NOTE: Be sure to apply lock tight to the screws with the mark of lock tight on it. 14. Connect the USB board cable to the connector CN4611 and the speaker cable to the connector CN6170 on the system board. 4-30 [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)
Page 264: Wireless Lan Card
The following describes the procedure for installing the wireless LAN card (See Figure 4-20). 1. Insert the wireless LAN card terminals slantwise into the connector CN2200 on the system board and press the wireless LAN card until it is securely in place. QOSMIO F20 Maintenance Manual (960-526) [CONFIDENTIAL] 4-31...
Page 265: Rtc Battery
The following describes the procedure for installing the RTC battery (See Figure 4-21). 1. Install (adhere) the RTC battery on the slot. 2. Connect the RTC battery harness to the connector CN9990 on the system board. 4-32 [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)
Page 266: Ua Board
3. Remove the following screws and UA board from the slot. ? M2.5? 6S TAPPING M2.5? 6S TAPPING UA board TV tuner cable UA board cable CN4622 CN9550 Figure 4-22 Removing the UA board QOSMIO F20 Maintenance Manual (960-526) [CONFIDENTIAL] 4-33...
Page 267 2. Pass the UA board cable through the guides and connect it to the connector CN4622 on the UA board. 3. Pass the TV tuner cable through the guides and connect it to the connector CN9550 on the UA board. Guides Guides Figure 4-23 Passing the cable 4-34 [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)
Page 268: Optical Drive
NOTE: When it is difficult to pull out the optical drive assembly, insert your finger into the slot and push out the optical drive assembly. Optical drive assembly Slot CN1810 Figure 4-24 Removing the optical drive assembly QOSMIO F20 Maintenance Manual (960-526) [CONFIDENTIAL] 4-35...
Page 269 1. Attach the side bracket to the optical drive and secure it with the following screws . M2? 3C S-THIN HEAD M2? 3.2 Stepping screw 2. Insert the optical drive assembly into the slot for the drive and connect it to the connector CN1810 on the system board. 4-36 [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)
Page 270: Fan
The following describes the procedure for installing the fan (See Figure 4-26). 1. Install the fan and secure it with the following screws . M2.5? 6S TAPPING 2. Connect the fan cable to the connector CN8770 on the system board. QOSMIO F20 Maintenance Manual (960-526) [CONFIDENTIAL] 4-37...
Page 271: System Board
2. Peel the insulator up and take out the Modem cable. Modem jack Insulator Modem cable Figure 4-27 Removing the Modem jack 3. Remove the following screw securing the system board. M2.5? 6S TAPPING 4-38 [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)
Page 272 5. Remove the system board with DC-IN jack, LAN jack and TV antenna coaxial cable. Take out the DC-IN cable under the Cable holder (R). CAUTION: When removing the system board, do not damage I/O ports. QOSMIO F20 Maintenance Manual (960-526) [CONFIDENTIAL] 4-39...
Page 273 Remove the DC-IN cable from the connector CN8800. Insulator Slot TV antenna coaxial cable DC-IN jack DC-IN cable CN8800 LAN jack CN4100 Figure 4-29 Removing DC-IN jack and LAN jack 4-40 [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)
Page 274 Figure 4-30 Passing of the cables 4. Pass the Modem cable under the insulator. 5. Install the Modem jack in the slot. 6. Secure the system board with the following screw. M2.5? 6S TAPPING QOSMIO F20 Maintenance Manual (960-526) [CONFIDENTIAL] 4-41...
Page 275: Tv Tuner Module
4. Open the left and right latches holding the TV tuner module and remove it. M2x4B S-THIN HEAD TV antenna coaxial cable TV tuner module TV tuner cable Latches Figure 4-31 Removing the TV tuner module 4-42 [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)
Page 276 M2? 4B S-THIN HEAD 2. Connect the TV antenna coaxial cable to the connector on the TV tuner module. 3. Connect the TV tuner cable to the connector on the TV tuner module. QOSMIO F20 Maintenance Manual (960-526) [CONFIDENTIAL] 4-43...
Page 277: Gpu Heat Sink/Vg Board
The following describes the procedure for removing the GPU heat sink and VG board (See Figure 4-32 and 4-33). 1. After removing the following screws, remove the GPU heat sink. M2? 4B S-THIN HEAD M2x4B S-THIN HEAD GPU Heat sink Figure 4-32 Removing the GPU heat sink 4-44 [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)
Page 278 3. When grease is attached on the surface of GPU chip, wipe it with cloth. Using a special applicator, apply silicon grease so that the GPU chip is completely covered. 4. Install the GPU heat sink with the following screws . M2? 4B S-THIN HEAD QOSMIO F20 Maintenance Manual (960-526) [CONFIDENTIAL] 4-45...
Page 279: Cpu Heat Sink/Cpu
1. After removing the following screws, remove the CPU heat sink holder and CPU heat sink. M2? 4B S-THIN HEAD M2x4B S-THIN HEAD CPU Heat sink holder CPU Heat sink Figure 4-34 Removing the CPU heat sink 4-46 [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)
Page 280 4 Replacement Procedures 2. Unlock the CPU by rotating the cam on the CPU socket 180 degrees to the counterclockwise with a flat-blade screwdriver. 3. Remove the CPU. Figure 4-35 Removing the CPU QOSMIO F20 Maintenance Manual (960-526) [CONFIDENTIAL] 4-47...
Page 281 5. Install the CPU heat sink and CPU heat sink holder and secure them with the following screws in the order of numbers marked on the heat sink holder. M2? 4B S-THIN HEAD 4-48 [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)
Page 282: Usb Board/Speaker
2. Remove the following screw and the Cable holder (L). M2.5? 6S TAPPING 3. Remove the Speaker (L) from the slot of the base assembly M2.5? 6S TAPPING Cable holder (L) USB board Speaker (L) Figure 4-37 Removing the USB board/Speaker (L) QOSMIO F20 Maintenance Manual (960-526) [CONFIDENTIAL] 4-49...
Page 283 4.18 USB board/Speaker 4. Peel off two glass tapes and peel (open) one insulator fixing the USB board cable and the speaker cable. Glass tape Insulator Figure 4-38 Removing the insulator and glass tape 4-50 [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)
Page 284 Speaker (R) from the slot of the base assembly. 6. Remove the following screws and Cable holder (R). M2.5? 6S TAPPING M2.5? 6S TAPPING Cable holder (R) Speaker (R) Figure 4-39 Removing the speaker(R) QOSMIO F20 Maintenance Manual (960-526) [CONFIDENTIAL] 4-51...
Page 285 5. Install the Cable holder (L) with the following screw. M2.5? 6S TAPPING 6. Pass the USB board cable above the Cable holder (L) and secure the USB board with the following screw. M2.5? 6S TAPPING 4-52 [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)
Page 286: Touch Pad/Volume Knob
Installing the touch pad The following describes the procedure for installing the touch pad (See Figure 4-40). 1. Install the touch pad and secure it with the following screws . M2.5? 3B U-THIN HEAD QOSMIO F20 Maintenance Manual (960-526) [CONFIDENTIAL] 4-53...
Page 287: Volume Knob
4. Release the latches of volume knob, pushing the latch inside. Push down the volume knob to remove. M2.5? 3B U-THIN HEAD Volume cover Volume board Insulator Volume knob Latches Volume board cable Figure 4-41 Removing the volume knob 4-54 [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)
Page 288 3. Install the volume cover and secure it with the following screws . M2.5? 3B U-THIN HEAD 4. Pass the volume board cable in the slot and stick insulator on it. QOSMIO F20 Maintenance Manual (960-526) [CONFIDENTIAL] 4-55...
Page 289: Lcd Unit/Fl Inverter
2. Insert your fingers between the edge of the display mask and the LCD unit, and remove the display mask while unlatching the display mask. Rubber cushion (x6) M2.5x6B FLAT BIND (x6) Display mask LCD unit Figure 4-42 Removing the display mask 4-56 [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)
Page 290 4.20 LCD unit/FL inverter 4 Replacement Procedures 3. Remove the following screw and LCD cable holder. M2.5? 6S TAPPING M2.5x6S TAPPING LCD cable holder Figure 4-43 Removing the LCD cable holder QOSMIO F20 Maintenance Manual (960-526) [CONFIDENTIAL] 4-57...
Page 291 M2? 6S BIND 6. Disconnect the LCD harness and HV harness from the connectors on the FL inverter. Insulator M2x6S BIND Insulator LCD harness FL inverter HV harness Figure 4-44 Removing the FL inverter 4-58 [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)
Page 292 4.20 LCD unit/FL inverter 4 Replacement Procedures 7. Remove the following screws fixing the LCD unit. M2? 6S BIND M2x6S BIND Figure 4-45 Removing the screws QOSMIO F20 Maintenance Manual (960-526) [CONFIDENTIAL] 4-59...
Page 293 LCD unit. After peeling off the aluminum tape , disconnect the LCD cable from the connector on the back of the LCD unit. Remove the LCD unit. Aluminum tape LCD cable Figure 4-46 Removing the LCD unit 4-60 [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)
Page 294 9. Remove the following screws and right and left LCD supports from the LCD unit. M2? 3S S-THIN HEAD M2x3S S-THIN HEAD LCD supports M2x3S S-THIN HEAD Figure 4-47 Removing the LCD supports QOSMIO F20 Maintenance Manual (960-526) [CONFIDENTIAL] 4-61...
Page 295 NOTE: When installing the display mask, ensure that there is no gap between the display mask and the display cover. 11. Secure the display mask with the following screws and stick six rubber cushions on the front. M2.5? 6B FLAT BIND 4-62 [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)
Page 296: Wireless Lan Antenna
1. Stick the wireless LAN antennas in position on the display cover. 2. Arrange the wireless LAN antenna cables according to the inside of the guideline the on the display cover and fix them with six acetate tapes. QOSMIO F20 Maintenance Manual (960-526) [CONFIDENTIAL] 4-63...
Page 297: Hinge
(left in the figure) on the middle frame. M2.5? 6S TAPPING M2.5x6S TAPPING Hinge M2.5x6S TAPPING Insulator Right hinge Left hinge Aluminum tape Figure 4-49 Removing the hinges on the middle frame 4-64 [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)
Page 298 2. Secure the hinge with the following screws and stick the aluminum tape in place. M2.5? 6S TAPPING 3. Install the hinge (right in the figure) on the middle frame and secure it with the following screws . M2.5? 6S TAPPING QOSMIO F20 Maintenance Manual (960-526) [CONFIDENTIAL] 4-65...
Page 299: Hinge On The Display Cover
The following describes the procedure for installing hinge on the display cover (See Figure 4-50). 1. Install the right and left hinges on the display cover according to the guides and secure them with the following screws . M2.5? 6S TAPPING 4-66 [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)
Page 300: Battery Lock / Battery Latch
4. Remove the spring from the Battery lock. Spring Spring Battery lock Battery latch Latch Latch Slider Slider (Battery latch) (Battery lock) Figure 4-51 Removing the Battery lock / Battery latch QOSMIO F20 Maintenance Manual (960-526) [CONFIDENTIAL] 4-67...
Page 301 2. Lock the latches to the Battery lock from the bottom and assemble the Battery lock assembly. 3. Set the spring to the Battery latch. 4. Lock the latches to the Battery latch from the bottom and assemble the Battery latch assembly. 4-68 [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)
Page 302: Fluorescent Lamp
- Take care when handling the lamp. Excessive force may break the lamp. - Ensure always that the power of the LCD module is turned off before connecting or disconnecting cables and connectors. QOSMIO F20 Maintenance Manual (960-526) [CONFIDENTIAL] 4-69...
Page 303: Replacing The 15.4- Inch 2- Lamp (W-Xga)
1. Turn the LCD module face down, and remove the PCB cover. CAUTION: Be careful not to damage the COF and ICs when removing the PCB cover. PCB cover Figure 4-52 Replacing Samsung fluorescent lamp (W-XGA 2-lamp) (1) 4-70 [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)
Page 304 Figure 4-53 Replacing Samsung fluorescent lamp (W-XGA 2-lamp) (2) 3. Remove the lamp wire tape and the aluminum tape stuck on the bottom. Aluminum tape Lamp wire tape Figure 4-54 Replacing Samsung fluorescent lamp (W-XGA 2-lamp) (3) QOSMIO F20 Maintenance Manual (960-526) [CONFIDENTIAL] 4-71...
Page 305 4. Unlatch the hooks on the bottom first and then the hooks on the right and left sides to remove the top chassis from the middle frame. Top chassis Hook Middle frame Figure 4-55 Replacing Samsung fluorescent lamp (W-XGA 2-lamp) (4) 4-72 [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)
Page 306: Samsung Fluorescent Lamp
Panel assembly Backlight unit Figure 4-56 Replacing Samsung fluorescent lamp (W-XGA 2-lamp) (5) Assembling the 15.4-inch 2-lamp (W-XGA) Samsung fluorescent lamp The assembly procedure is the reverse of the above disassembly procedure. QOSMIO F20 Maintenance Manual (960-526) [CONFIDENTIAL] 4-73...
Page 307 1. Turn the LCD module face down, and remove the PCB cover. CAUTION: Handle with care not to damage COF of S/D and G/D ICs. PCB cover Figure 4-57 Replacing Samsung fluorescent lamp (W-XGA 1-lamp) (1) 4-74 [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)
Page 308 Figure 4-58 Replacing Samsung fluorescent lamp (W-XGA 1-lamp) (2) 3. Remove the lamp wire tape and the aluminum tape stuck on the bottom. Aluminum tape Lamp wire tape Figure 4-59 Replacing Samsung fluorescent lamp (W-XGA 1-lamp) (3) QOSMIO F20 Maintenance Manual (960-526) [CONFIDENTIAL] 4-75...
Page 309 4. Unlatch the hooks on the bottom first and then the hooks on the right and left sides to remove the top chassis from the mold frame. Top chassis Hook Mold frame Figure 4-60 Replacing Samsung fluorescent lamp (W-XGA 1-lamp) (4) 4-76 [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)
Page 310 CAUTION: Handle with care not to damage the COF of S/D and G/D ICs. Panel assembly Backlight unit Figure 4-61 Replacing Samsung fluorescent lamp (W-XGA 1-lamp) (5) Assembling the 15.4-inch 1-lamp (W-XGA) Samsung fluorescent lamp The assembly procedure is the reverse of the above disassembly procedure. QOSMIO F20 Maintenance Manual (960-526) [CONFIDENTIAL] 4-77...
Page 311: Replacing The 15.4-Inch 1-Lamp (W-Xga) Chemei Fluorescent Lamp
Figures 4-62 to 4-66. The fluorescent lamp is assembled in the backlight unit. To replace the fluorescent lamp, replace the backlight unit. 1. Peel off tapes. Figure 4-62 Replacing Chemei fluorescent lamp (W-XGA 1-lamp) (1) 4-78 [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)
Page 312 2. Remove screws fixing the bezel 3. Remove the bezel from the LCD unit. CAUTION: Remove the bezel from the side (Z portion) of FL lamp. Figure 4-63 Replacing Chemei fluorescent lamp (W-XGA 1-lamp) (2) QOSMIO F20 Maintenance Manual (960-526) [CONFIDENTIAL] 4-79...
Page 313 4 Replacement Procedures 4.24 Fluorescent lamp 4. Remove screws fixing the PCB. Figure 4-64 Replacing Chemei fluorescent lamp (W-XGA 1-lamp) (3) 4-80 [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)
Page 314 4.24 Fluorescent lamp 4 Replacement Procedures 5. Open the PCB and turn the display side up. 6. Remove the cell (part of LC and glass). Figure 4-65 Replacing Chemei fluorescent lamp (W-XGA 1-lamp) (4) QOSMIO F20 Maintenance Manual (960-526) [CONFIDENTIAL] 4-81...
Page 315 10. Peel off the double-sided tape (10) and remove the FL lamp. Figure 4-66 Replacing Chemei fluorescent lamp (W-XGA 1-lamp) (5) Assembling the 15.4-inch 1-lamp (W-XGA) Chemei fluorescent lamp The assembly procedure is the reverse of the above disassembly procedure. 4-82 [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)
Page 316 Appendices [CONFIDENTIAL]...
Page 317 Appendices App-ii [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)
Page 318 C.15. CN4200 IEEE1394 connector (4-pin) ..............C-20 C.16. CN4610 UA board I/F connector (10-pin) ............C-20 C.17. CN4611 USB connector (Port6) (8-pin)............. C-20 C.18. CN5000 LCD connector (41-pin)............... C-21 C.19. CN5080 RGB I/F connector (15-pin) ..............C-22 QOSMIO F20 Maintenance Manual (960-526) [CONFIDENTIAL] App-iii...
Page 319: Board Layout
Appendix D Keyboard Scan/Character Codes.............. D-1 Appendix E Key Layout ....................E-1 Keyboard Layout ....................E-1 Appendix F Wiring Diagrams ..................F-1 LAN Loopbak Connector ..................F-1 Appendix G BIOS Rewrite Procedures ................G-1 Appendix H EC/KBC Rewrite Procedures ..............H-1 App-iv [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)
Page 320: Reliability
Mini PCI I/F connector (124-pin) ............. C-13 Table C-8 WW Tuner I/F connector (124-pin) ............C-15 Table C-9 MDC I/F connector (12-pin) ..............C-17 Table C-10 Keyboard connector (34-pin) ..............C-18 Table C-11 PAD connector (4-pin)................C-18 QOSMIO F20 Maintenance Manual (960-526) [CONFIDENTIAL] App-v...
Page 321 Table D-4 Scan codes with Fn key................D-6 Table D-5 Scan codes in overlay mode................ D-7 Table D-6 No. 124 key scan code ................D-7 Table D-7 No. 126 key scan code ................D-8 App-vi [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)
Page 322 Appendices Table I-1 MTBF ......................I-1 QOSMIO F20 Maintenance Manual (960-526) [CONFIDENTIAL] App-vii...
Page 323 Appendices App-viii [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)
Page 324: Appendix A Handling The Lcd Module
LCD cover before securing the module with screws. Do not force the module into place, because stress can affect its performance. Also, the panel’s polarized surface is easily scarred, so be careful when handling it. QOSMIO F20 Maintenance Manual (960-526) [CONFIDENTIAL]...
Page 325 Do not apply cleanser directly to the panel. 4. If water or other liquid is left on the panel’s surface for a long period, it can change the screen’s tint or stain it. Be sure to quickly wipe off any liquid. [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)
Page 326 6. CMOS-LSI circuits are used in the module, so guard against damage from electrostatic discharge. Be sure to wear a wrist or ankle ground when handling the module. QOSMIO F20 Maintenance Manual (960-526) [CONFIDENTIAL]...
Page 327 8. Do not store the module at temperatures below specifications. Cold can cause the liquid crystals to freeze, lose their elasticity or otherwise suffer damage. 9. Do not disassemble the LCD module. Disassembly can cause malfunctions. [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)
Page 328 Appendices 10. If you transport the module, do not use packing material that contains epoxy resin (amine) or silicon glue (alcohol or oxide). These materials can release gas that can damage the panel’s polarization. QOSMIO F20 Maintenance Manual (960-526) [CONFIDENTIAL]...
Page 329 Appendices Appendix A Handling the LCD Module [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)
Page 330: Appendix B Board Layout
Appendix B Board Layout Appendices Appendix B Appendix B Board Layout System Board (FUTSY*) Front Figure B-1 System board layout (front) QOSMIO F20 Maintenance Manual (960-526) [CONFIDENTIAL]...
Page 331 Mini PCI I/F connector CN9990 RTC battery connector CN4610 UA board I/F connector CN3200 Keyboard I/F connector CN3400 Debugging port (D port) CN9650 Switch membrane connector IC3200 EC/KBC CN5000 LCD I/F connector CN8770 Fan connector [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)
Page 332: System Board (Futsy*) Back
Appendix B Board Layout Appendices System Board (FUTSY*) Back Figure B-2 System board layout (back) QOSMIO F20 Maintenance Manual (960-526) [CONFIDENTIAL]...
Page 333 IS2110 PC card connector CN5501 S-Video OUT connector CN5080 RGB connector PJ8810 Main battery connector IS1050 CPU socket IC1200 GMCH IC8972 IC3400 Super IO IC2000 PC card controller IC1600 ICH6-M CN4100 LAN I/F connector [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)
Page 334: Ua Board (Futua
Figure B-3 UA board layout Table B-3 UA board connectors Mark Number Name CN4622 System board I/F connector CN9550 TV tuner I/F connector J9550 TV-IN connector CN4620 USB Port0 connector CN4621 USB Port4 connector QOSMIO F20 Maintenance Manual (960-526) [CONFIDENTIAL]...
Page 335: Vg Board (Futvg
Appendices Appendix B Board Layout B.4 VG Board (FUTVG*) (back) (front) Figure B-4 VG board layout [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)
Page 336 Appendix B Board Layout Appendices Table B-4 VG board ICs and connectors Mark Number Name CN5901 System board I/F connector IC5201 SDRAM IC5203 SDRAM IC5204 SDRAM IC5206 SDRAM IC5000 QOSMIO F20 Maintenance Manual (960-526) [CONFIDENTIAL]...
Page 337 Appendices Appendix B Board Layout [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)
Page 338: Appendix C Pin Assignment
Signal name MRREF-B0V BDQ05-B1P BDQ07-B1P BDQ04-B1P BDQ06-B1P BDM0-B1P BDQS0-B1N BDQS0-B1P BDQ01-B1P BDQ00-B1P BDQ03-B1P BDQ02-B1P BDQ12-B1P BDQ13-B1P BDQ11-B1P BDQ08-B1P BDM1-B1P BDQS1-B1N MCK3-B1P BDQS1-B1P MCK3-B1N 2R5-B2V BDQ09-B1P BDQ15-B1P BDQ14-B1P BDQ10-B1P BDQ16-B1P BDQ21-B1P BDQ18-B1P BDQ17-B1P BDQS2-B1N BDQS2-B1P BDM2-B1P QOSMIO F20 Maintenance Manual (960-526) [CONFIDENTIAL]...
Page 339 MCKE3-B1P 1R8-B1V 1R8-B1V BBS2-B1P 1R8-B1V 1R8-B1V BMA12-B1P BMA11-B1P BMA09-B1P BMA07-B1P BMA08-B1P BMA06-B1P 1R8-B1V 1R8-B1V BMA05-B1P BMA04-B1P BMA03-B1P BMA02-B1P BMA01-B1P BMA00-B1P 1R8-B1V 1R8-B1V BMA10-B1P BBS1-B1P BBS0-B1P BRAS-B1N BWE-B1N MCS2-B1N 1R8-B1V 1R8-B1V BCAS-B1N MODT2-B1P MCS3-B1N BMA13-B1P [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)
Page 340 BDM4-B1P BDQS4-B1P BDQ38-B1P BDQ34-B1P ADQ39-B1P BDQ35-B1P BDQ44-B1P BDQ40-B1P BDQ45-B1P BDQ41-B1P BDQS5-B1N BDM5-B1P BDQS5-B1P BDQ43-B1P BDQ46-B1P BDQ42-B1P BDQ47-B1P BDQ48-B1P BDQ52-B1P BDQ54-B1P BDQ53-B1P MCK4-B1P MCK4-B1N BDQS6-B1N BDQS6-B1P BDM6-B1P BDQ51-B1P BDQ50-B1P BDQ55-B1P BDQ49-B1P BDQ57-B1P BDQ56-B1P BDQ60-B1P BDQ61-B1P QOSMIO F20 Maintenance Manual (960-526) [CONFIDENTIAL]...
Page 341 Appendices Appendix C Pin Assignments Table C-1 SO-DIMM0 connector (200-pin) (4/4) PIN No. Signal name PIN No. Signal name BDM7-B1P BDQS7-B1N BDQS7-B1P BDQ58-B1P BDQ59-B1P BDQ62-B1P ADQ63-B1P SMBDAT-P3P SMBCL2-P3P [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)
Page 342: Cn1400 So-Dimm1 Connector (200-Pin
ADQ00-B1P ADQ05-B1P ADQ01-B1P ADM0-B1P ADQS0-B1N ADQS0-B1P ADQ02-B1P ADQ07-B1P ADQ03-B1P ADQ06-B1P ADQ12-B1P ADQ13-B1P ADQ08-B1P ADQ09-B1P ADM1-B1P ADQS1-B1N MCK0-B1P ADQS1-B1P MCK0-B1N ADQ14-B1P ADQ10-B1P ADQ15-B1P ADQ11-B1P ADQ16-B1P ADQ20-B1P ADQ17-B1P ADQ21-B1P ADQS2-B1N ADQS2-B1P ADM2-B1P ADQ23-B1P ADQ19-B1P ADQ22-B1P ADQ18-B1P QOSMIO F20 Maintenance Manual (960-526) [CONFIDENTIAL]...
Page 343 1R8-B1V 1R8-B1V AMA12-B1P AMA11-B1P AMA09-B1P AMA07-B1P AMA08-B1P AMA06-B1P 1R8-B1V 1R8-B1V AMA05-B1P AMA04-B1P AMA03-B1P AMA02-B1P AMA01-B1P AMA00-B1P 1R8-B1V 1R8-B1V AMA10-B1P ABS1-B1P ABS0-B1P ARAS-B1N AWE-B1N MCS0-B1N 1R8-B1V 1R8-B1V ACAS-B1N MODT0-B1P MCS1-B 1N AMA13-B1P 1R8-B1V 1R8-B1V MODT1-B1P [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)
Page 344 ADQ38-B1P ADQ34-B1P ADQ35-B1P ADQ39-B1P ADQ40-B1P ADQ45-B1P ADQ44-B1P ADQ41-B1P ADQS5-B1N ADM5-B1P ADQS5-B1P ADQ42-B1P ADQ46-B1P ADQ43-B1P ADQ47-B1P ADQ48-B1P ADQ52-B1P ADQ49-B1P ADQ53-B1P MCK1-B1P MCK1-B1N ADQS6-B1N ADQS6-B1P ADM6-B1P ADQ55-B1P ADQ54-B1P ADQ51-B1P ADQ50-B1P ADQ56-B1P ADQ60-B1P ADQ57-B1P ADQ61-B1P ADM7-B1P ADQS7-B1N QOSMIO F20 Maintenance Manual (960-526) [CONFIDENTIAL]...
Page 345 Appendices Appendix C Pin Assignments Table C-2 SO-DIMM1 connector (200-pin) (4/4) PIN No. Signal name PIN No. Signal name ADQS7-B1P ADQ58-B1P ADQ59-B1P ADQ62-B1P ADQ63-B1P SMBDAT-P3P SMBCL2-P3P [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)
Page 346: Cn1810 Cd-Rom I/F Connector (50-Pin
PDD08-P3P PDD07-P3P SDD09-P3P PDD06-P3P PDD10-P3P PDD05-P3P PDD11-P3P PDD04-P3P PDD12-P3P PDD03-P3P PDD13-P3P PDD02-P3P PDD14-P3P PDD01-P3P PDD15-P3P PDD00-P3P PDDREQ-P3P PDIOR-P3N PDIOW-P3N PIORDY -P3P PDDACK-P3N IDEIRQ-P3P N.C. PDA1-P3P N.C. PDA0-P3P PDA2-P3P PDCS1-P3N PDCS3-P3N N.C. N.C. N.C. N.C. QOSMIO F20 Maintenance Manual (960-526) [CONFIDENTIAL]...
Page 347: Cn1800 Hdd I/F Connector (44-Pin
N.C. SODCS3-P3P SODCS1-P3N SODA2-P3P SODA0-P3P N.C. SODA1-P3P N.C. SOIRQ-P3P SODACK -P3N SOIORY-P3P SODIOR-P3N SODIOW-P3N SODREQ-P3P N.C. SODD15-P3P SODD00-P3P SODD14-P3P SODD01-P3P SODD13-P3P SODD02-P3P SODD12-P3P SODD03-P3P SODD11-P3P SODD04-P3P SODD10-P3P SODD05-P3P SODD09-P3P SODD06-P3P SODD08-P3P SODD07-P3P SORST-P3N C-10 [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)
Page 348: Is2110 Pc Card I/F Connector (68-Pin
ACCLKR-EYN ACCD1-E3N ACAD02-EYP ACAD04-EYP ACAD06-EYP ACD14-EYP ACAD08-EYP ACAD10-EYP ACVS1-E3P ACAD13-EYP ACAD15-EYP ACAD16-EYP ACA18-EYP ACLOCK-EYN ACSTOP-EYN ACDEVS-EYN MCVCCA-EYV MCVPPA-EYV ACTRDY-EYN ACFRAM-EYN ACAD17-EYP ACAD19-EYP ACVS2-E3P ACRST-EYN ACSERR-EYN ACREQ-EYN ACCBE3-EYN ACAUDI-EYP ACSTSC-EYP ACAD28-EYP ACAD30-EYP ACAD31-EYP ACCD2-E3N QOSMIO F20 Maintenance Manual (960-526) [CONFIDENTIAL] C-11...
Page 349: Is2101 Media Bridge I/F Connector (42-Pin
MSDAT2 -E3P MSSDIO-E3P MSDAT1 -E3P MSBS-E3P FM-E3V MSCLK-E3P MSSDIO-E3P MSDAT1 -E3P FM-E3V SDAT3-E3P SDAT2-E3P SDAT1-E3P SDAT0-E3P MSDAT3 -E3P MSDAT2 -E3P MSDAT1 -E3P MSSDIO-E3P MSCLK-E3P XDWE-E3N SDCMD-E3P SMCLE-E3P XDCE-E3N XDRE-E3N SMRDY -E3P SMCD-E3N SDCD-E3N SDWP-E3P C-12 [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)
Page 350: Cn2200 Mini Pci I/F Connector (124-Pin
N.C. PIRQF-P3N PIRQG-P3N N.C. N.C. X33MPC-P3P PCIRS1-P3N PREQ2-P3N PGNT2 -P3N AD31-P3P PME-S3N AD29-P3P N.C. AD30-P3P AD27-P3P AD25-P3P AD28-P3P N.C. AD26-P3P CBE3-P3N AD24-P3P AD23-P3P AD21-P3P AD21-P3P AD22-P3P AD19-P3P AD20-P3P PAR-P3P AD17-P3P AD18-P3P CBE2-P3N AD16-P3P QOSMIO F20 Maintenance Manual (960-526) [CONFIDENTIAL] C-13...
Page 351 AD13-P3P AD12-P3P AD11-P3P AD10-P3P AD09-P3P AD08-P3P CBE0-P3N AD07-P3P AD06-P3P AD05-P3P AD04-P3P N.C. AD02-P3P AD03-P3P AD00-P3P N.C. AD01-P3P N.C. N.C. N.C. N.C. N.C. N.C. N.C. N.C. N.C. N.C. N.C. N.C. N.C. N.C. N.C. N.C. C-14 [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)
Page 352: Cn2400 Ww Tuner I/F Connector (124-Pin
N.C. N.C. N.C. X33MPC-P3P PCIRS1-P3N T-P3V PREQ1-P3N PGNT1-P3N AD31-P3P N.C. AD29-P3P N.C. AD30-P3P AD27-P3P T-P3V P3V AD25-P3P AD28-P3P N.C. AD26-P3P CBE3-P3N AD24-P3P AD23-P3P TIDSEL-P3P AD21-P3P AD22-P3P AD19-P3P AD20-P3P PAR-P3P AD17-P3P AD18-P3P CBE2-P3N AD16-P3P QOSMIO F20 Maintenance Manual (960-526) [CONFIDENTIAL] C-15...
Page 353 AD12-P3P AD11-P3P AD10-P3P AD09-P3P AD08-P3P CBE0-P3N AD07-P3P T-P3V P3V AD06-P3P AD05-P3P AD04-P3P N.C. AD02-P3P AD03-P3P AD00-P3P AD01-P3P N.C. TMPTUN-GND N.C. (TMPTUN-SXP) 1R5-P1V (TMPMPG-SXP) 1R5-P1V 1R5-P1V 1R5-P1V N.C. N.C. N.C. N.C. N.C. TADCEN N.C. C-16 [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)
Page 354: Cn3010 Mdc I/F Connector (12-Pin
Appendix C Pin Assignments Appendices C.9 CN3010 MDC I/F connector (12-pin) Table C-9 MDC I/F connector (12-pin) Signal name PIN No. Signal name N.C. M97OT2-P3P N.C. M97SY2-P3P M97IN2-E3P M97RS2-S 3N X97BC2-P3P QOSMIO F20 Maintenance Manual (960-526) [CONFIDENTIAL] C-17...
Page 355: Cn3200 Keyboard Connector (34-Pin
KBRT05-S3N KBSC12-S3N KBSC13-S3N KBRT06-S3N KBRT07-S3N KBSC14-S3N KBSC15-S3N N.C. N.C. N.C. N.C. N.C. C.11 CN3240 PAD connector (4-pin) Table C-11 PAD connector (4-pin)) PIN No. Signal name PIN No. Signal name IPDDAT-P5P IPDCLK -P5P C-18 [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)
Page 356: Cn3330 Volume I/F Connector (3-Pin
C.14 CN4100 Network I/F connector (14-pin) Table C-14 Network I/F connector (14-pin) PIN No. Signal name PIN No. Signal name ACT –P3N LNK-P3N Pulled Pulled up by N.C. N.C. (RJ45-8) (RJ45-7) (RJ45-6) (RJ45-5) (TDP -P3P) (TDN-P3P) (RDP-P3P) (RDN-P3P) QOSMIO F20 Maintenance Manual (960-526) [CONFIDENTIAL] C-19...
Page 357: Cn4200 Ieee1394 Connector (4-Pin
Signal name USBP0-S3N USBP0-S3P USBOPS-E5V USBOPS-E5V USBP4-S3N USBP4-S3P C.17 CN4611 USB connector (Port6) (8-pin) Table C-17 USB connector (Port6) (8-pin) PIN No. Signal name PIN No. Signal name USBOPS-E5V USBOPS-E5V USBP&-S3N USBP6-S3P N.C. C-20 [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)
Page 358: Cn5000 Lcd Connector (41-Pin
TXCLA-PYN TXDA0-PYP TXDA0-PYN TXDA1-PYP TXDA1-PYN TXDA2-PYP TXDA2-PYP TXCK1-P3P TXCK1-P3N TXDT4-P3P TXDT4-P3N TXDT5-P3P TXDT5-P3N TXDT6-P3P TXDT6-P3N LCDSCL-P3P DDC P3V PNL-P3V PNL-P3V LCDSDA -P3P FL-GND FL-GND FL-GND FL-GND FL-GND FL-GND BRT0 -P5P BRT1 -P5P BRT2DA-S3P QOSMIO F20 Maintenance Manual (960-526) [CONFIDENTIAL] C-21...
Page 359: Cn5080 Rgb I/F Connector (15-Pin
Signal name SYSRED-PXP SYSGREEN-PXP SYSBLUE-PXP DDC-P5V (ALDSDA-P 2P) (HSYNC-P3P) (VSYNC-P3P) (ALDSCL-P2P) C.20 CN5501 S-VIDEO I/F connector (4-pin) Table C-20 S-VIDEO I/F connector (4-pin) PIN No. Signal name PIN No. Signal name LUMINA -PYP CHROMA-PYP C-22 [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)
Page 360: Cn5900 Gfx I/F Connector (230-Pin
PVT-EFV 1R5-P1V PVT-EFV (L1INE1- PXP) PVT-EFV N.C. (L1INE2-PXP) (L1INE3-PXP) TXCK1-P3N TXCK0-P3N TXCK1-P3P TXCK1-P3P TXCK4-P3N TXDT0-P3P TXCK4-P3P TXDT0-P3N TXCK5-P3N TXDT1-P3P TXCK5-P3P TXDT1-P3N TXCK6-P3N TXDT2-P3P TXCK6-P3P TXDT2-P3N (TXDT7-P3N) (TXDT3-P3P) (TXDT7-P3P) (TXDT3-P3N) PEGC15-P1N PECG15- PEGC15-P1P PECG15-P1P QOSMIO F20 Maintenance Manual (960-526) [CONFIDENTIAL] C-23...
Page 361 PECG12-P1N PEGC12-P1P PECG12-P1P PEGC11-P1N PECG11-P1N PEGC11-P1P PECG11-P1P PEGC10-P1N PECG10-P1N PEGC10-P1P PECG10-P1P PEGC09-P1N PECG09-P1N PEGC09-P1P PECG09-P1P PEGC08-P1N PECG08-P1N PEGC08-P1P PECG08-P1P PEGC07-P1N PECG07-P1N PEGC07-P1P PECG07-P1P PEGC06-P1N PECG06-P1N PEGC06-P1P PECG06-P1P PEGC05-P1N PECG05-P1N PEGC05-P1P PECG05-P1P PEGC04-P1N PECG04-P1N C-24 [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)
Page 362 PEGC01-P1P PECG01-P1P PEGC00-P1N PECG00-P1N PEGC00-P1P PECG00-P1P XPEPEG-P3N NVARED-PXP XPEPEG-P3P A-GND NVAGRUN-PXP RSTVGA-P3N A-GND (PDNVGA- NVABLU-PXP P3N) (DVIDET-S3N) A-GND AHSYNC-P3P AVSYNC-P3P (DVATX0-P3P) A-GND (DVATX0- (NVBRED-PXP) P3N) A-GND (DVATX1-P3P) (NVBGRN-PXP) (DVATX1- A-GND P3N) (NVBBLU) (DVATX2-P3P) QOSMIO F20 Maintenance Manual (960-526) [CONFIDENTIAL] C-25...
Page 363 GALERT-P3P (DVACK -P3N) GTHERM-P3P GPUHOT-S5V NVASCL-P3P NVASDA-P3P SVSCL-P3P (NVBSCL-P3P) SVSDA-P3P (NVBSDA -P3P) SVRST-S3N NVCSCL-P3P VDMDD-S3P NVCSDA-P3P SVRXPD-S3N SVTXPC-S3N LCDVEN-P3P A-GND FLVEN-P3P (COMP-IN) A-GND GPON-E3P (LUMA-IN) VG1R8-P1V A-GND PVON-S5P (CROM-IN) 10-EAV (ID2) (ID1) (ID0) C-26 [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)
Page 364: J6051 External Microphone Connector (6-Pin
Signal name PIN No. Signal name (A4R7-P4V) HEADL-PXP HEADR-PXP A-GND SPDJIN-P3P N.C. DOUT-P3P SPD3V-P3V C.25 CN8800 DC-IN connector (4-pin) Table C-25 DC-IN connector (4-pin) PIN No. Signal name PIN No. Signal name (PVL) (PVL) QOSMIO F20 Maintenance Manual (960-526) [CONFIDENTIAL] C-27...
Page 365: Pj8810 Main Battery Connector (10-Pin
PIN No. Signal name PIN No. Signal na me (P5V) FANG0-P3P C.28 CN9990 RTC battery connector (3-pin) Table C-28 RTC battery connector (3-pin) PIN No. Signal name PIN No. Signal name (R3V ) N.C. C-28 [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)
Page 366: Cn9650 Sw Fpc I/F Connector (20-Pin
C.29 CN9650 SW FPC I/F connector (20-pin) Table C-29 SW FPC I/F connector (20-pin) PIN No. Signal name PIN No. Signal name PNLOFF-S3N GNBTNE-S3N GNBTND-S3P GNBTNC-S3N GNBTNB-S3N GNBTNA-S3N KBSC16-S3N N.C. KBRT00-S3N KBRT01-S3N KBRT02-S3N KBRT03-S3N CDBTN-S3N TVBTN-S3N PWRSW-S3N N.C. (P5V) QOSMIO F20 Maintenance Manual (960-526) [CONFIDENTIAL] C-29...
Page 367: Ua Board (Futua*)
PIN No. Signal name USBOPS-E5V USBP0-S3N USBP0-S3P C.32 CN4621 USB Port4 I/F connector 2 (4-pin) Table C-32 USB Port0 I/F connector 2 (4-pin) PIN No. Signal name PIN No. Signal name USBOPS-E5V USBP4-S3N USBP4-S3P C-30 [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)
Page 368: J9550 Tv-In Connector (5-Pin
TV-GND CVBB TV-GND C.34 CN9550 S-Video OUT connector (12-pin) Table C-34 S-Video OUT connector (12-pin) PIN No. Signal name PIN No. Signal name F-GND F-GND CVBB TV-GND N.C. TVA-P3V N.C. TV-GND TV-GND TV-GND QOSMIO F20 Maintenance Manual (960-526) [CONFIDENTIAL] C-31...
Page 369: Vg Board (Futvg*)
1R5-P1V PVT-EFV 1R5-P1V PVT-EFV 1R5-P1V PVT-EFV (L1INE1-PXP) PVT-EFV N.C. (L1INE2-PXP) (L1INE3-PXP) TXCK1-P3N TXCK0-P3N TXCK1-P3P TXCK1-P3P TXCK4-P3N TXDT0-P3P TXCK4-P3P TXDT0-P3N TXCK5-P3N TXDT1-P3P TXCK5-P3P TXDT1-P3N TXCK6-P3N TXDT2-P3P TXCK6-P3P TXDT2-P3N (TXDT7-P3N) (TXDT3-P3P) (TXDT7-P3P) (TXDT3-P3N) PEGC15-P1N PECG15-P1N C-32 [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)
Page 370 PECG13-P1P PEGC12-P1N PECG12-P1N PEGC12-P1P PECG12-P1P PEGC11-P1N PECG11-P1N PEGC11-P1P PECG11-P1P PEGC10-P1N PECG10-P1N PEGC10-P1P PECG10-P1P PEGC09-P1N PECG09-P1N PEGC09-P1P PECG09-P1P PEGC08-P1N PECG08-P1N PEGC08-P1P PECG08-P1P PEGC07-P1N PECG07-P1N PEGC07-P1P PECG07-P1P PEGC06-P1N PECG06-P1N PEGC06-P1P PECG06-P1P PEGC05-P1N PECG05-P1N PEGC05-P1P PECG05-P1P QOSMIO F20 Maintenance Manual (960-526) [CONFIDENTIAL] C-33...
Page 371 PECG01-P1N PEGC01-P1P PECG01-P1P PEGC00-P1N PECG00-P1N PEGC00-P1P PECG00-P1P XPEPEG-P3N NVARED-PXP XPEPEG-P3P A-GND NVAGRUN- RSTVGA-P3N A-GND (PDNVGA- NVABLU-PXP P3N) (DVIDET-S3N) A-GND AHSYNC-P3P AVSYNC-P3P (DVATX0-P3P) A-GND (DVATX0-P3N) (NVBRED- PXP) A-GND (DVATX1-P3P) (NVBGRN- PXP) (DVATX1-P3N) A-GND (NVBBLU) C-34 [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)
Page 372 GPUHOT-S5V NVASCL-P3P NVASDA-P3P (SVSCL-P3P) (NVBSCL-P3P) (SVSDA-P3P) (NVBSDA -P3P) (SVRST-S3N) NVCSCL-P3P (VDMDD-S3P) NVCSDA-P3P (SVRXPD- S3N) (SVTXPC- S3N) LCDVEN-P3P A-GND FLVEN-P3P (COMP-IN) A-GND GPON-E3P (LUMA-IN) VG1R8-P1V A-GND PVON-S5P (CROM-IN) 10-EAV (P3V) (ID2) (P3V) (ID1) (ID0) QOSMIO F20 Maintenance Manual (960-526) [CONFIDENTIAL] C-35...
Page 373 Appendices Appendix C Pin Assignments C-36 [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)
Page 374: Appendix D Keyboard Scan/Character Codes
Keyboard Scan/Character Codes Appendix D Keyboard Scan/Character Codes Table D-1 Scan codes (set 1 and set 2) (1/4) Code set 1 Code set 2 Keytop Note Make Break Make Break ‘ ~ 7 & BkSp QOSMIO F20 Maintenance Manual (960-526) [CONFIDENTIAL]...
Page 375 Table D-1 Scan codes (set 1 and set 2) (2/4) Code set 1 Code set 2 Keytop Note Make Break Make Break Caps Lock ‘ “ Enter Shift (L) No.102 , < . > Shift (R) [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)
Page 376 Appendix D Keyboard Scan/Character Codes Appendices Table D-1 Scan codes (set 1 and set 2) (3/4) Code set 1 Code set 2 Keytop Note Make Break Make Break Ctrl Alt (L) Space ALT (R) Home PgUp PgDn QOSMIO F20 Maintenance Manual (960-526) [CONFIDENTIAL]...
Page 377 5. * This key corresponds to key No. 42 in a 102-key model. 6. * Refer to Table D-6, No. 124 key scan code. 7. * Refer to Table D-7, No. 126 key scan code. [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)
Page 378 Shift key, scan codes are changed as listed below: With left Shift With right Shift Set 1 E0 AA ___________E0 B6 E0 2A ____________E0 36 Set 2 E0 F0 12 _________E0 F0 59 E0 12 ____________E0 59 QOSMIO F20 Maintenance Manual (960-526) [CONFIDENTIAL]...
Page 379 AA E0 12 E0 2F E0 F0 2F E0 F0 12 Table D-4 Scan codes with Fn key Code set 1 Code set 2 Keytop Make Break Make Break CTRL LALT ARROW NUMERIC Scrl [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)
Page 380 Table D-6 No.124 key scan code Code set 1 Code set 2 Shift Make Break Make Break Prt Sc Common E0 37 AA E0 E0 F0 Ctrl ? E0 7C Shift ? E0 7C Alt ? QOSMIO F20 Maintenance Manual (960-526) [CONFIDENTIAL]...
Page 381 Appendix D Keyboard Scan/Character Codes Table D-7 No.126 key scan code Shift Code set 1 Code set 2 Make Make Pause Common* E1 1D E1 F0 Ctrl* E0 46 E0 F0 *: This key generates only make codes. [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)
Page 382: Appendix E Key Layout
Appendix E Key Layout Appendices Appendix E Key Layout Appendix E Key Layout E.1 Keyboard Layout Figure E-1 Keyboard layout (for US) Figure E-2 Keyboard layout (for UK) QOSMIO F20 Maintenance Manual (960-526) [CONFIDENTIAL]...
Page 383 Appendices Appendix E Key Layout [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)
Page 384: Appendix F Wiring Diagrams
Appendix F Wiring diagrams Appendices Appendix F Appendix F Wiring Diagrams LAN Loopback Connector Figure F-1 LAN loopback connector QOSMIO F20 Maintenance Manual (960-526) [CONFIDENTIAL]...
Page 385 Appendices Appendix F Wiring diagrams [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)
Page 386: Appendix G Bios Rewrite Procedures
(Keep holding down the key until a message appears on the screen.) The BIOS rewriting starts. 6. When the process is completed, a beep sounds. Eject the BIOS/EC/KBC rewriting disk and the system is automatically restart. QOSMIO F20 Maintenance Manual (960-526) [CONFIDENTIAL]...
Page 387 Appendices Appendix G BIOS Rewrite Procedures [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)
Page 388: Appendix H Ec/Kbc Rewrite Procedures
5. Turn on the power while holding down the Tab key. (Keep holding down the key until a message appears on the screen.) The EC/KBC rewriting starts. 6. When the EC/KBC rewrite is completed, a beep sounds and the system is automatically turned off. QOSMIO F20 Maintenance Manual (960-526) [CONFIDENTIAL]...
Page 389 Appendices Appendix H EC/KBC Rewrite Procedures [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)
Page 390: Appendix I Reliability
Appendix I Reliability Appendices Appendix I Reliability Appendix I Reliability The following table shows MTBF (Mean Time Between Failures) in maximum configuration. Table I-1 MTBF Component Time (hours) System 5,841 QOSMIO F20 Maintenance Manual (960-526) [CONFIDENTIAL]...
Page 391 Appendices Appendix I Reliability [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)

Toshiba QOSMIO F20 Maintenance Manual

Table of Contents

Table of Contents

Chapter 1 Hardware Overview

Chapter 2 Troubleshooting Procedures

Power Supply Troubleshooting

Chapter 3 Tests and Diagnostics

Table of Contents

Chapter 4 Replacement Procedures

Table of Contents

Appendix

Appendix G BIOS Rewite Procedures

Appendix A Handling the LCD Module

Appendix Contents

Appendix B Board Layout

Appendix C Pin Assignment

Appendix D Keyboard Scan/Character Codes

Appendix E Key Layout

Appendix F Wiring Diagrams

Appendix G BIOS Rewrite Procedures

Appendix H EC/KBC Rewrite Procedures

Appendix I Reliability

Quick Links

Chapters

Troubleshooting

Related Manuals for Toshiba QOSMIO F20

Summary of Contents for Toshiba QOSMIO F20