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Toshiba 650CT Maintenance Manual
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Toshiba 650CT Maintenance Manual

Toshiba 650CT Maintenance Manual

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1.1
Features
The Toshiba 650CT Personal Computer uses extensive Large Scale Integration (LSI), and
Complementary Metal-Oxide Semiconductor (CMOS) technology to provide minimum size
and weight, low power usage and high reliability. The computer incorporates the following
features and benefits:
Microprocessor
This computer uses an Intel
Technology (VRT) that operates at 2.9/3.3 volts. The math co-processor and 16 KB
cache memory are integrated into the Pentium chip.
Level-2 cache
A 256 KB level-2 cache memory is provided in pipe-line burst SRAM.
Hard disk drive
This computer has a 1.35 billion byte (1.257 GB) hard disk drive (HDD).
Memory
The 650CT comes standard with 16 MB of Extend Data Out (EDO) DRAM. This
includes 640 KB of conventional memory and 15744 KB of extended memory.
Display
The 650CT has an 11.3-inch Thin Film Transistor (TFT) color LCD which displays
800 x 600 pixels. The built-in display controller supports full color capability and up
to 1280 x 1024 resolution on an external monitor.
Keyboard
An-easy-to-use 84/86-key keyboard provides a numeric keypad overlay for fast nu-
meric data entry or for cursor and page control. It also includes two keys that have
special functions in Windows
102-key enhanced keyboard.
Batteries
Three different batteries are used in the 650CT: a Lithium-Ion main battery, a backup
battery (for memory backup), and an RTC battery (for the Real Time Clock).
Expansion memory slot
An optional 8, 16, 32, or 64 MB memory module can be installed in the memory slot.
650CT
®
®
Pentium
processor 133 MHz with Voltage Reduction
®
95. This keyboard supports software that uses a 101- or
1-1

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  • Page 1 This computer has a 1.35 billion byte (1.257 GB) hard disk drive (HDD). Memory The 650CT comes standard with 16 MB of Extend Data Out (EDO) DRAM. This includes 640 KB of conventional memory and 15744 KB of extended memory.
  • Page 2 The Desk Station V Plus provides additional features to Enhanced Port Replicator II's as follows: two PCI/ISA bus and one PCI bus expansion slots, a 5.25-inch drive bay, a Selectable Bay, and an on-board SCSI-2 (Small Computer System Interface) con- troller. External FDD port Allows you to connect an external FDD. 650CT...
  • Page 3 The 650CT is equipped with an RJ11 modem jack to connect a telephone line directly to the computer. The 650CT Personal Computer is shown in Figure 1-1, and its system configuration is shown in Figure 1-2. Figure 1-1 650CT personal computer...
  • Page 4 Figure 1-2 650CT system unit configuration 650CT...

  • Page 5: System Unit Block Diagram

    System Unit Block Diagram Figure 1-3 is a block diagram of the system unit. Figure 1-3 System board block diagram 650CT...
  • Page 6 8 and 16 MB memory modules consist of 1M x 16-bit chips. 32 and 64 MB memory modules consist of 4M x 16-bit chips. EDO DRAM is used 3.3 volt operation No parity bit Access time 60 ns Data transfer is 64-bit width 650CT...
  • Page 7 - ZV-port support (multiplex gate array control) Miscellaneous Gate Array This gate array has the following functions: - Communication control • Communication with KBC • I C bus interface Communication with PS Communication with Desk Station V Plus Communication with EEPROM • Communication register set 650CT...
  • Page 8 Real Time Clock (RTC) One T9934 chip is used. The T9934 has 128 of bytes memory. Fourteen bytes memory are used for the cal- ender and clock. The remaining 114 bytes are used for the system configuration data. 650CT...
  • Page 9 Storage capacity (KB) Unformatted 2,000 1,000 Formatted 1,440 Number of heads Number of cylinders Access time (ms) Track to track Average Head settling time Recording track density (tpi) Data transfer rate (Kbps) Rotation speed (rpm) Recording method Modified Frequency Modulation (MFM) 650CT...

  • Page 10: Inch Hard Disk Drive

    The HDD is a random access, nonvolatile storage device. It has a non-removable 2.5-inch magnetic disk and mini-winchester type magnetic heads. The 650CT supports a 1.35 billon byte (1.257 GB) HDD. The HDD is shown in Figure 1-5. Specifications for the HDD are listed in Table 1-2.
  • Page 11 The 84-key (USA) or 86-key (European) keyboard is mounted on the system unit. The keyboard is connected to the keyboard controller on the system board through two 14-pin flat cables. The 650CT AccuPoint, located in the center of the keyboard, provides convenient control of the cursor without requiring desk space for a mouse.

  • Page 12: Tft Color Lcd

    TFT Color LCD The 650CT TFT Color Liquid Crystal Display (LCD) contains an LCD module, a Florescent Lamp (FL), and an FL inverter board. 1.6.1 TFT Color LCD Module The TFT color LCD is backlit and supports 800 x 600 pixels with built-in display controller.
  • Page 13 *NOTE: The FL currents at power on are: Bright Semi-bright AC adapter connected 4.6 mA 3.6 mA AC adapter not connected 3.0 mA 2.4 mA (The settings at power on do not change even if the AC adapter connection changes.) 1-13 650CT...
  • Page 14 Docking Adapter Use the Docking Adapter to connect and disconnect the computer to an optional Enhanced Port Replicator II or Desk Station V Plus. The Docking Adapter is shown in Figure 1-8. Figure 1-8 Docking Adapter 1-14 650CT...

  • Page 15: Power Supply

    CPU, System controller GA, +3.3 PCI/ISA-GA, DRAM video controller, PC card GA, PC card slot•PCI/Modem-GA PCI/ISA-GA, video controller, BIOS-ROM, KBC, LSC Modem, sound, HDD PS/2 mouse, PS/2 KB port IFVCC PC card slot, B12V Back-up 5V Power supply internal use 1-15 650CT...
  • Page 16 2 when the system is powered on. Table 1-7 Time required for quick charges Status Charging time Quick charge 1 4 hours (power off) Quick charge 2 6 to 9 hours (power on) 1-16 650CT...
  • Page 17 AutoResume data is determined according to the following priority: AC adapter > Main battery > Backup battery The backup battery is charged by the main battery or AC adapter. Table 1-8 shows the charging time and data preservation period of the backup battery. 1-17 650CT...
  • Page 18 The RTC battery is charged by the main battery or AC adapter. Table 1-9 shows the charging time and data preservation period of the RTC battery. Table 1-9 RTC battery charging/data preservation time Status Time Charging Time 40 Hours Data preservation period (full charge) 1 Month 1-18 650CT...

  • Page 19: Troubleshooting

    The following tools are necessary for implementing the troubleshooting procedures: Diagnostics Disk Phillips screwdriver (2 mm) Toshiba MS-DOS system disk(s) (You must install the following onto the disk: SYS.COM, FORMAT.COM, FDISK.COM and FDISK.EXE) 2DD or 2HD formatted work disk for floppy disk drive testing...

  • Page 20: Troubleshooting Flowchart

    ® Verify with the customer that Toshiba MS-DOS or Toshiba Windows 95 is installed on the hard disk. Non-Toshiba operating systems can cause the computer to malfunc- tion. Make sure all optional equipment is removed from the computer. Make sure the floppy disk drive is empty.
  • Page 21 Figure 2-1 Troubleshooting flowchart (1/2) 650CT...
  • Page 22 2.5. If an error is detected on the hard disk test, perform the hard disk drive troubleshooting procedures in section 2.6. If an error is detected on the keyboard test, perform the keyboard troubleshooting procedures in section 2.7. 650CT...
  • Page 23 If an error is detected on the display test, perform the display troubleshooting procedures in section 2.8. If an error is detected on the modem test, perform the modem troubleshooting procedures in section 2.9. 650CT...

  • Page 24: Power Supply Troubleshooting

    Any condition other than those above. If the battery becomes too hot, charging will stop and the battery icon will go out even if the AC adapter is connected. *1 AutoResume Off will be executed soon. *2 AutoResume Off has already been executed. 650CT...
  • Page 25 If the DC IN icon flashes orange, go to Procedure 2. Check 2 If the DC IN icon does not light, go to Procedure 3. Check 3 If the Battery icon does not light orange or green, go to Procedure 4. 650CT...
  • Page 26 Current from the DC power supply is over the limit (0.5 A) when there is no load. Battery pack Error code Meaning Battery voltage is over the limit. Battery over voltage signal is received. Battery charge current is over the limit. Battery discharge is over current. 650CT...
  • Page 27 If the cables are connected correctly, go to the following step. Make sure the DC power cord of the AC adapter is firmly plugged into the connector. Replace the AC adapter with a new one. If the error still exists, go to Procedure 5. 650CT...
  • Page 28 DC IN icon stops blinking. If the error still exists, go to Procedure 5. Check 7 For any other error, go to Procedure 5. 2-10 650CT...
  • Page 29 If the Battery icon does not glow orange, go to Check 3. Check 3 Make sure the battery pack is installed in the computer correctly. If the battery is properly installed and the Battery icon still does not glow orange, go to Procedure 2-11 650CT...
  • Page 30 If the battery pack still isn't charged, replace it with a new one. Check 4 The battery's temperature is hot or cold. Return the battery to a normal opera- tional condition. If the battery pack still doesn't charge, replace it with a new one. Check 5 Go to Procedure 5. 2-12 650CT...
  • Page 31 If the problem still exists, go to Check 3. Check 3 Replace the I/O board with a new one. Refer to Chapter 4 for instructions on how to remove and replace the I/O board. 2-13 650CT...
  • Page 32 BIOS ROM. The IRT tests each IC on the system board and initializes it. If an error message is shown on the display, perform Check 1. If there is no error message, go to Procedure 2. If Toshiba MS-DOS or Toshiba Windows 95 is properly loaded, go to Procedure 3. Check 1 If any of the following error messages display, press the F1 key as the message instructs.
  • Page 33 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) NO FDD ERROR (23) FDC ERROR (24) TIMER INTERRUPT ERROR (25) RTC UPDATE ERROR 2-15 650CT...

  • Page 34: Procedure 2

    IRT test ends. For example, when the printer port LED displays 1F and halts, the IRT test has already completed the Display initial- ization. In this instance, the IRT indicates an error has been detected during the system memory test. 2-16 650CT...
  • Page 35 Mouse initialization — KBC initialization KBC ERROR Boot password — HDD initialization HDC ERROR/HDD #0 ERROR FDD initialization FDC ERROR/NO FDD ERROR Printer initialization — SIO initialization — Timer initialization RTC UPDATE ERROR TIMER INTERRUPT ERROR NDP initialization — 2-17 650CT...
  • Page 36 If error code 50h displays, go to the Keyboard Troubleshooting procedures in Section 2.7. Check 3 If error code 5Ah displays, go to the HDD Troubleshooting Procedures in Section 2.6. Check 4 If error code 60h displays, go to the FDD Troubleshooting Procedures in Section 2.5. 2-18 650CT...
  • Page 37 Meaning of status System BIOS RAM checksum error. External display card is connected. HDD was installed. SMRAM checksum error or memory error during suspend. Conventional memory checksum error. Video RAM checksum error. Extended memory checksum error. PnP RAM checksum error. 2-19 650CT...
  • Page 38 • Are any pins broken or bent? Check 2 Replace the I/O board with a new one. If the problem still exists, go to Check 3. Check 3 Replace the system board with a new one. 2-20 650CT...
  • Page 39 Clean the FDD heads using the cleaning kit. If the FDD still does not function properly after cleaning, go to Procedure 3. If the test program cannot be executed on the computer, go to Procedure 3. 2-21 650CT...
  • Page 40 If the following message displays, disable the write-protect tab on the floppy disk. protected Write If any other message appears, perform Check 2. Check 2 Make sure the floppy disk is formatted correctly. If it is, go to Procedure 3. 2-22 650CT...
  • Page 41 Replace the I/O board with a new one following the steps in Chapter 4, Replace- ment Procedures. If the FDD is still not functioning properly, perform Check 4. Check 4 Replace the system board with a new one following the steps in Chapter 4, Re- placement Procedures. 2-23 650CT...

  • Page 42: Hard Disk Drive Troubleshooting

    Master Diskette Creator (MDC) utility in the Toshiba Utility folder. After backing up the preinstalled software, use the BACKUP command in the Toshiba Companion Utility to back up the entire disk, including the user's files. 2. If Windows 95 was selected, check to see if the Microsoft Create System Disks Tools (MSCSD.EXE) still exists in the System Tools...
  • Page 43 Procedure 1 Partition Check Insert the Toshiba MS-DOS system disk, turn on the computer, and perform the following checks: Check 1 Type C: and press Enter. If you cannot change to drive C, go to Check 2. If you can change to drive C, go to Procedure 2.
  • Page 44 Not used, choose another setting and repeat Check 1. If it is not set to Not used, go to Check 4. Check 4 Using the Toshiba MS-DOS system disk, install a system program on the hard disk using the SYS command. If the following message appears on the display, the system program has been transferred to the HDD.
  • Page 45 HDD. If the following message appears on the display, the HDD is formatted. Format complete If any other error message appears on the display, refer to the Toshiba MS-DOS Manual for more information and perform Check 2. Check 2 Using the Diagnostic Disk, format the HDD with a low level format option.

  • Page 46: Check 2

    Replace the HDD unit with a new one following the instructions in Chapter 4, Replacement Procedures. If the HDD is still not functioning properly, perform Check 2. Check 2 Replace the system board with a new one following the instructions in Chapter 4. 2-28 650CT...

  • Page 47: Keyboard Troubleshooting

    The I/O board may be damaged. Replace the I/O board with a new one. Check 4 The membrane switch may be damaged. Replace the membrane switch with a new one. If the error still exists, perform Check 5. 2-29 650CT...
  • Page 48 The I/O board may be damaged. Replace the I/O board with a new one. If the error still exists, perform Check 6. Check 6 The system board may be damaged. Replace the system board with a new one. 2-30 650CT...

  • Page 49: Display Troubleshooting

    Refer to Chapter 3, Tests and Diagnostics, for details. If an error is detected, go to Procedure 3. If an error is not detected, the display is functioning properly. 2-31 650CT...
  • Page 50 Replacement Procedures, for more information about how to disassemble the computer. Figure 2-3 Display connection If any of these cables is not connected, firmly reconnect it and repeat Procedures 1 and 2. If the problem still exists, perform Procedure 4. 2-32 650CT...
  • Page 51 The I/O board may be damaged. Replace the I/O board with a new one. If the problem still exists, perform Check 6. Check 6 The system board may be damaged. Replace the system board with a new one. 2-33 650CT...
  • Page 52 Check 3 Execute modem test 3. In an error occurs, the I/O board and DAA module may be malfunctioning. Replace them both. If any other errors occur while executing the internal modem Diagnostics Tests, go to Proce- dure 2. 2-34 650CT...
  • Page 53 Replace the I/O board with a new one following the steps in Chapter 4, Replace- ment Procedures. If the modem is still not functioning properly, perform Check Check 4 Replace the system board with a new one following the steps in Chapter 4, Replacement Procedures. 2-35 650CT...

  • Page 54: Check 3

    The system board might be damaged. Replace it with a new one. Refer to Chapter 4, Replacement Procedures. If there is still a problem, go to Check 4. Check 4 The I/O board might be damaged. Replace it with a new one. Refer to Chapter 4, Replacement Procedures. 2-36 650CT...

  • Page 55: The Diagnostic Test

    A formatted working disk for the floppy disk drive test (all tests) External FDD Cleaning kit to clean the floppy disk drive heads (Head Cleaning) PC card wraparound connector for the I/O card test (Expansion test) Parallel port wraparound connector for the printer wraparound test (Printer test) 650CT...
  • Page 56 Headphone (Sound test) Telephone Microphone External speaker The following sections detail the tests within the Diagnostic Test function of the DIAGNOS- TIC TEST menu. Refer to Sections 3.19 through 3.25 for detailed information on the remaining Service Program Module functions. 650CT...
  • Page 57 Executing the Diagnostic Test Toshiba MS-DOS is required to run the Diagnostic program. To start the program, follow the steps listed below: Insert the Diagnostics disk in the computer’s floppy disk drive and turn on the computer. (The Diagnostics disk contains the MS-DOS boot files.)
  • Page 58 To select the DIAGNOSTIC TEST menu from the DIAGNOSTICS MENU, set the highlight bar to 1, and press Enter. The following menu will appear: TOSHIBA personal computer xxx DIAGNOSTICS version X.XX (c) copyright TOSHIBA Corp. 19XX DIAGNOSTIC TEST MENU : 1 - SYSTEM TEST...
  • Page 59 Selecting NO for ERROR STOP keeps the test running even if an error is found. Table 3-1 in Section 3.3 describes the function of each test on the subtest menu. Table 3-2 in Section 3.18 lists the error codes and error status for each error. 650CT...

  • Page 60: Subtest Names

    VRAM read/write for VGA Gradation for VGA Gradation for LCD Gradation & Mode test for VGA All dot on/off for LCD “H” pattern display Sequential read Sequential read/write Random address/data Write specified address Read specified address PRINTER Ripple pattern Function Wraparound 650CT...
  • Page 61 Sequential write W-R-C specified address REAL TIMER Real time Backup memory Real time carry NDP test EXPANSION PCMCIA wraparound DS bus wraparound RGB monitor ID Joystick Joystick wraparound SOUND CODEC (Recording/Playback) FM-Synthesizer SIN-Wave Playback CODEC (Line In/Out) MODEM Modem test 650CT...

  • Page 62: System Test

    Subtest 06 Quick charge Checks the battery's quick-charge status. When the test is complete, results are displayed on the screen. Refer to Chapter 2 for an explanation of the displayed results. 650CT...

  • Page 63: Memory Test

    QEMM386.SYS. Also, the HIMEM.SYS must be deleted from the CONFIG.SYS file. This subtest writes constant data and address data to extended memory (maxi- mum address 100000h), then reads new data and compares the result with the original data. The constant data is FFh, AAh, 55h, and 00h. 650CT...
  • Page 64 ('7000':'Program' size to '7000':'7FFF' (32 KB)) to check the hit-miss ratio (on/off status). One test takes 3 seconds. Number of misses < Number of hits → OK Number of misses ≥ Number of hits → Fail 3-10 650CT...

  • Page 65: Keyboard Test

    When any key is pressed, the corresponding key on the screen changes to the corresponding character. Holding a key down enables the auto- repeat function which causes the key’s display character to blink. Press Key Display If test OK, Press [Del] [Enter] Key 3-11 650CT...
  • Page 66 If this test does not detect an error, it returns to the subtest menu. If it detects an error, the following message appears: KBD - MOUSE INTERFACE ERROR [[ HALT OPERATION ]] 1: Test end 2: Continue 3: Retry 3-12 650CT...
  • Page 67 < PARAMETER > STATUS:0008h X-RATE:0000h Y-RATE:0000h < BUTTON > << PRESS BUTTON1 + BUTTON2 THEN END >> There are eight directions of arrow marks as shown below. When a button is pressed, the display alternates as shown below. 3-13 650CT...

  • Page 68: Display Test

    To exit this subtest and return to the DISPLAY TEST menu, press Ctrl + Break. Subtest 03 Gradation for LCD This subtest displays eight colors: red, semi-red, green, semi-green, blue, semi-blue, white, and semi-white. Each color is displayed full screen for three seconds. 3-14 650CT...
  • Page 69 This subtest displays gradations for each mode. Execute the test, then press Enter to change the mode. Resolution Mode 800 x 600 3, 12, 13, 43, 52 The display below appears on the screen when this subtest is executed. Pressing Enter changes the size of the displayed image. 3-15 650CT...
  • Page 70 All dot on /off for LCD This subtest displays an all-white screen (all dot on) for three seconds then an all-black screen (all dot off) for three seconds. To exit this subtest and return to the DISPLAY TEST menu, press Ctrl + Break. 3-16 650CT...
  • Page 71 This subtest displays a full screen of "H" patterns. HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH To exit this subtest and return to the DISPLAY TEST menu, press Ctrl + Break. 3-17 650CT...

  • Page 72: Floppy Disk Test

    The floppy disk test menu will appear after you select the start track number. Select the number of the subtest you want to execute and press Enter. The following message will appear during the floppy disk test. FLOPPY DISK XXXXXXX xxxx DIAGNOSTIC TEST VX.XX [Ctrl]+[Break]; test end [Ctrl]+[C] key stop 3-18 650CT...
  • Page 73 Subtest 01. The data is then read and compared to the original data. Subtest 04 Write Specified Address This subtest writes specified data to a specified track, head, and address. Subtest 05 Read Specified Address This subtest reads data from a specified track, head, and address. 3-19 650CT...

  • Page 74: Printer Test

    #$%&’()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_‘abcdefghijklmnopqr $%&’()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_‘abcdefghijklmnopqrs %&’()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_‘abcdefghijklmnopqrst &’()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_‘abcdefghijklmnopqrstu ‘()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdefghijklmnopqrstuv ()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_‘abcdefghijklmnopqrstuvw )*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_‘abcdefghijklmnopqrstuvwx *+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_‘abcdefghijklmnopqrstuvwxy Subtest 02 Function This subtest is for IBM compatible printers, and tests the following functions: Normal print Double width print Compressed print Emphasized print Double strike print All characters print 3-20 650CT...
  • Page 75 The parallel port wraparound connector (34M741986G01) wiring diagram is described in Appendix F. This subtest checks the output and bidirectional modes of the data control and status lines through the printer wraparound connector. 3-21 650CT...

  • Page 76: Async Test

    "receive" (subtest 03). The wiring diagram for the serial port direct cable is shown in Appendix F. This subtest sends 20h through 7Eh data to the receive side, then receives the sent data and compares it to the original data. 3-22 650CT...
  • Page 77 SIR port. Subtest 07 SIR point to point (Receive) This subtest, used with Subtest 06 described above, receives the data from the send side, then sends the received data through the SIR port. 3-23 650CT...

  • Page 78: Hard Disk Test

    If MS-DOS 6.22 and Windows for Workgroups is selected, use the Master Diskette Creator (MDC) utility in the Toshiba Utility folder. If Windows 95 is selected, use the Microsoft Create System Disks Tools (MSCSD.EXE) in the System Tools Folder.
  • Page 79 • Forward sequential • Reverse sequential • Random Subtest 03 Random Address/Data This subtest writes random data to random addresses on the HDD cylinder, head and sector. This data is then read and compared to the original data. 3-25 650CT...
  • Page 80 This subtest writes specified 2-byte data to all of the cylinders on the HDD. Subtest 10 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. 3-26 650CT...

  • Page 81: Real Timer Test

    Writes 1-bit of "off" data to addresses 0Eh through 80h Writes the data pattern AAh and 55h to the RTC 114-byte memory (addresses 0Eh to 7Fh) The subtest then reads and compares this data with the original data. To exit, press Ctrl + Break. 3-27 650CT...
  • Page 82 Current date : 12-31-1995 Current time : 23:59:58 Pressing Enter displays the following: Current date : 01-01-1996 Current time : 00:00:00 PRESS [Enter] KEY TO EXIT TEST Press Ctrl + Break to exit. 3-28 650CT...

  • Page 83: Ndp Test

    The NDP test contains one subtest that tests the computer's NDP functions. Subtest 01 This test checks the following functions of the coprocessor: Control word Status word Addition Multiplication Press Ctrl + Break to exit. 3-29 650CT...

  • Page 84: Expansion Test

    00 NOTE: Subtests 02 through 05 are for the Desk Station V Plus and Enhanced Port Replicator II. For procedures on these subtests, refer to the Desk Station V Plus and Enhanced Port Replicator II Maintenance Manuals. 3-30 650CT...

  • Page 85: Sound Test

    Load the file AD1848L.COM. Connect a sound source such as a CD player or stereo to the line-in port. After making the connections, a dialog box will display. Press Enter to play a recorded sound. About three seconds after the recorded sound is played, the dialog box will display again. 3-31 650CT...

  • Page 86: Modem Test

    When you set the COM port to the same one selected in the Hardware Setup program, the following screen will display: [XXXXX-X] [ XXXXXXXXXX] -----------------[EXECUTION AREA]----------------------- Select the COM(1:COM1/3F8h,2:COM2/2F8h)? Baud rate (2:300,4:1200,5:2400,6:9600,7:14400,8:19200,9:38400)? Enter the Baud rate and press Enter. 3-32 650CT...
  • Page 87 A dial tone sound is generated in the right speaker. Subtest 05 TERMINAL When you have connected the DAA module to a telephone, test the connec- tion by calling the line from another phone. NOTE: Before you conduct Subtest 05, connect the DAA module to a telephone. 3-33 650CT...
  • Page 88 FDC Error Seek Error FDD Not Drive Error Time Out Error Write Buffer Error Printer Time Out Fault Select Line Out Of Paper Power Off Busy Line Async DSR On Time Out CTS On Time Out RX-READY Time Out 3-34 650CT...
  • Page 89 Control Word Error Status Word Error Bus Error Addition Error Multiplication Error PCMCIA Address Line Error REG# Line Error CE#1 Line Error CE#2 Line Error DATA Line Error WAIT Line Error BSY# Line Error BVD1 Line Error No PCMCIA 3-35 650CT...

  • Page 90: Hard Disk Test Detail Status

    “0” --- Not used. (Corrected data) “1” --- A correctable data error was corrected. “0” --- Not used. (Index) “1” --- The index is sensed. “0” --- Normal. (Error) “1” --- The previous command was terminated with some error. 3-36 650CT...
  • Page 91 “1” --- Illegal command error or a drive status error occurred. TK00 “0” --- The hard disk found track 0 during a recalibrate command. (Track 0) “1” --- The hard disk could not find track 0 during a recalibrate command. —— Not used 3-37 650CT...

  • Page 92: Hard Disk Format

    Before executing the function, transfer the contents of the hard disk onto floppy disks. If MS-DOS 6.22 and Windows for Workgroups was selected, use the Master Diskette Creator (MDC) utility in the Toshiba Utility folder to back up the preinstalled soft- ware.
  • Page 93 3.19.2 Operations NOTE: After the HDD has been formatted, execute the Toshiba MS-DOS FDISK com- mand to partition the HDD. Next, execute the Toshiba MS-DOS FORMAT command. Refer to the Toshiba MS-DOS manual for more information about using these com- mands.
  • Page 94 Press Bad head number (dd)] key ? Enter the cylinder and head numbers of bad tracks and press Enter. Note that if there are no bad tracks, pressing Enter alone is the same as executing the All Track Format described in item (e) below. 3-40 650CT...
  • Page 95 Drive number select (1:#1, 2:#2) ? Interleave number (1 / 1 - 8) ? Press [Cylinder number (dddd)] ? Press [Head number (dd)] ? Press Enter to return to the Hard Disk Format menu. 3-41 650CT...
  • Page 96 Drive number select (1:#1, 2:#2) ? Bad tracks will be displayed in the format shown below. [[cylinder, head = 0123 03]] Press Enter to return to the Hard Disk Format menu. 3-42 650CT...

  • Page 97: Head Cleaning

    Remove the Diagnostics Disk from the FDD, then insert the cleaning disk and press Enter. When the "cleaning start" message appears, the FDD head cleaning has begun. The display automatically returns to the DIAGNOSTIC MENU when the program is completed. 3-43 650CT...

  • Page 98: Log Utilities

    001 FDD 01 0000 180 00001 00 00 FDD - TIME OUT ERROR Address Error status Pass count HDC status Subtest number Read data Test name Write data Error count Error status name [[1:Next,2:Prev,3:Exit,4:Clear,5:Print,6:FD Log Read,7:FD Log Write]] 3-44 650CT...
  • Page 99 The 7 key writes the log information to a floppy disk. If an “error retry OK,” condition occurs, a capital “R” is placed at the beginning of the error status. However, it is not added to the error count. 3-45 650CT...

  • Page 100: Running Test

    Select Y or N and press Enter. The following message will appear: Serial #A wrap around test (Y/N) ? Selecting Y (yes) executes the ASYNC wraparound test. An RS-232-C wrap- around connector must be connected to the serial port of the computer to properly execute this test. 3-46 650CT...
  • Page 101 Select Yes or No and press Enter. The following message will be appear: Mount the work disk(s) on the drive(s), then press [Enter] key. [Warning : The contents of the disk(s), will be destroyed.] This program executes continuously. To terminate the program, press Ctrl + Break. 3-47 650CT...

  • Page 102: Floppy Disk Drive Utilities

    FDD and HDD. 1. FORMAT NOTE: This program is only for testing a floppy disk drive. The option is different from the Toshiba MS-DOS FORMAT command. This program can format a 5.25-inch or 3.5-inch floppy disk in the following formats: 2D: Double-sided, double-density, 48/67.5 TPI, MFM mode, 512...
  • Page 103 When COPY is selected, the following message appears: FLOPPY DISK FORMAT & COPY : VX.XX Type select (0:2DD-2DD,1:2D-2D,2:2D-2HD,3:2HD-2HD) ? Selecting a media/drive type number will display a message similar to the one below: Insert source disk into drive A: Press any key when ready. 3-49 650CT...
  • Page 104 After selecting the HDD, the display will go to step (f). The following message will be displayed: Format type select (1:2DD, 2:2D, 3:2HD) ? Select a format type. The following message displays: Insert source disk into drive A: Press any key when ready. 3-50 650CT...
  • Page 105 The following message displays: —— Max. address —— [Track ] = xxxx [ Head ] = xx [Sector] = xx Track number ?? Set the track number you want to dump. The system will access the disk and dump a list. 3-51 650CT...

  • Page 106: System Configuration

    * - 1 ASYNC ADAPTER * - 1 HARD DISK DRIVE(S) * - 1 PRINTER ADAPTER * - XXXMB + XXXXKB TOTAL MEMORY * - 1 MATH CO-PROCESSOR Press [Enter] Key Press Enter to return to the DIAGNOSTIC MENU. 3-52 650CT...
  • Page 107 (h) Ext. Keyboard "Fn" (i) Boot Priority (j) Pointing Devices (k) PC Card Controller Mode Display I/O Ports (a) Serial Port (b) Infrared Port (c) Built-in Modem Port (d) Parallel Port (e) Sound System PCI Bus Drives I/O Floppy Disk I/O 3-53 650CT...
  • Page 108 Selecting 0 from the DIAGNOSTICS MENU and pressing Enter displays the TSETUP screen. The TSETUP screen is divided into two pages: SYSTEM SETUP (1/2) and SYS- TEM SETUP (2/2). NOTE: The Panel Power On/Off item appears only when the computer is in Resume mode. 3-54 650CT...
  • Page 109 3.25.5 The Factory Preset Configuration When you access SETUP, the current configuration is displayed. To show the factory preset configuration, press Home. To accept the default settings, press End and then press Y. 3-55 650CT...
  • Page 110 Power On Display Selects the display when booting the computer. Internal/External Selects an external CRT if one is connected, otherwise it selects the internal LCD. (Default) Simultaneous Selects both the internal LCD and the external CRT for simultaneous display. 3-56 650CT...
  • Page 111 OS/2 . (Default) ® ® Standard IDE Select this mode when using Novell NetWare ® or UNIX . When this mode is selected, up to 504MB is logically available even though the disk’s capacity is larger than 504MB. 3-57 650CT...
  • Page 112 Battery Save Mode: Low Power (Long Life) or Full Power (Normal Life). For details, see Battery Save Options below. Battery Save Options The following set of options can be selected in the submenu of the User Setting, which is one of the Battery Save Mode options. 3-58 650CT...
  • Page 113 Min. Automatically turns off power to the hard disk drive if it is not used for the duration set. The duration xx can be set to 1, 3, 5, 10, 15, 20 or 30 minutes. 3-59 650CT...
  • Page 114 This option lets you choose between AutoResume and boot mode. You can also set this option using hot keys. AutoResume is effective with either the internal LCD or with an external monitor. Boot Turns on boot mode. (Default) Resume Turns on the AutoResume feature. 3-60 650CT...
  • Page 115 Alarm Date is set to Disabled, the computer will be powered on at the same time every day. Press ↓ to move the cursor to the right and ↑ to move the cursor to the left when you set the date and time. 3-61 650CT...
  • Page 116 Low Battery Alarm Enabled Panel Close Alarm Enabled Enabled Enables the feature. (Default) Disabled Disables the feature. System Beep Use this feature to enable or disable the system beep. Enabled Enables the feature. (Default) Disabled Disables the feature. 3-62 650CT...
  • Page 117 Right Ctrl + Right Alt* Left Alt + Left Shift Right Alt + Right Shift Left Alt + Caps Lock * If these selections are made, you cannot warm boot the system by pressing Ctrl + Alt + Del. 3-63 650CT...
  • Page 118 For the PCMCIA R2.01 and ZV port cards. (Default) CardBus/16bit For the PC card 16 multi-function card, CardBus card and ZV port card. Display Use this option to set the VGA segment address: VGA Segment Address E000h-EFFFh E400h-EFFFh (Default) C000h-CBFFh E000h-EBFFh 3-64 650CT...
  • Page 119 This option allows you to set the COM level for the Modem port. The Modem port interrupt request level (IRQ) and I/O port base address for each COM level are shown below: NOTE: If an internal modem (optional in some markets) is not installed, this selection does not appear. 3-65 650CT...
  • Page 120 1, 2 or 3. The default is 3. LPT setting Interrupt level I/O address DMA Channel LPT 1 378H 3(Default) LPT 2 278H LPT 3 3BCH Not Used (Parallel port default) Others (Other settings are made automatically by the Plug-and-Play operating system.) 3-66 650CT...
  • Page 121 Use this option to set the WSS I/O address from among the following settings: 534h (default), 608h, E84h, F44h SBPro I/O address Use this option to set the SBPro I/O address from among the following settings: 220h (default), 240h 3-67 650CT...
  • Page 122 Joystick I/O address You cannot change this value. 9. PCI Bus This option displays the interrupt level for the CardBus in the computer and the PCI bus in the Desk Station V Plus. It is for information only and cannot be changed. 3-68 650CT...
  • Page 123 Others Setting is made automatically by plug-and-play operating systems. 11. Floppy disk I/O Displays the address, internal level and channel settings for the diskette drive. It appears only in TSETUP. (3F2H/IRQ6/CH2) The computer's FDD is ready for use. 3-69 650CT...
  • Page 124 3-70 650CT...
  • Page 125 Optional PC Card Hard Disk Drive DAA Module Keyboard Top Cover and Display Assembly RTC Battery, I/O Board, PC Card Slot and Backup battery Membrane Switch and Backup battery Speaker System Board Docking Adapter Covers Interface Connector Board Connector Mechanism 650CT...

  • Page 126: Safety Precautions

    1. Always use the lithium ion battery pack or back-up battery that are authorized by Toshiba or compatible with the unit. Since other battery packs have different specifications, they may be incompatible with the unit, and may burst or explode.

  • Page 127: Before You Begin

    The computer contains many sharp edges and corners, so be careful not to injure yourself. After you have replaced an FRU, make sure the computer is functioning properly by performing the appropriate test on the FRU you have fixed or replaced. 650CT...

  • Page 128: Disassembly Procedures

    Make sure the correct screws are used to secure all FRUs. Using the wrong screw can damage the threads or the head of the screw, and may prevent proper seating of an FRU. After installing an FRU, confirm that it and the computer are functioning properly. 650CT...

  • Page 129: Tools And Equipment

    When you fasten screws, be sure to follow the torque list below. Overtightening can damage components and screws; under tightening can result in electrical shorts or other damage if screws or components come loose. 0.22 N•m (2.2 kgf•cm) M2.5 0.36 N•m (3.5 kgf•cm) 0.22 N•m (2.2 kgf•cm) 0.3 N•m (3.1 kgf•cm) or less 650CT...

  • Page 130: Battery Pack

    Lift up the end of the battery pack facing you and pull it toward you to remove it. Figure 4-2 Removing the battery pack NOTE: For environmental reasons, do not throw away a spent battery pack. Please return spent battery packs to Toshiba. 650CT...
  • Page 131 To install the battery pack, follow the steps below and refer to Figure 4-3. WARNING: The battery is a lithium ion battery which can explode if not properly replaced, used, handled or disposed of. Use only batteries recommended by Toshiba as replacements.

  • Page 132: Optional Memory Module

    Figure 4-4 Removing the optional memory module socket cover Press the two latches to the outside to release the module. A spring will force one end of the optional memory module up. Figure 4-5 Removing the optional memory module 650CT...
  • Page 133 As you press the optional memory module down, two latches will clamp against notches on the sides of the module to secure it. Figure 4-6 Seating the optional memory module Seat the socket cover and secure it with the M2x4 silver screw. Install the battery pack as described in Section 4.2. 650CT...

  • Page 134: Optional Pc Card

    Remove the battery pack and optional memory module as described in Sections 4.2 and 4.3. Open the PC card slot cover. Slide the eject button to partially eject the card. Grasp the optional PC card and remove it. Figure 4-7 Removing the optional PC card 4-10 650CT...
  • Page 135 Press gently to ensure a firm connection. The eject button will return to the lock position. Figure 4-8 Installing the optional PC card Close the PC card slot cover. Install the optional memory module and battery pack as described in Sections 4.3 and 4.2. 4-11 650CT...
  • Page 136 Turn the computer right side up and slide your fingernail or a thin object under the cover to remove the HDD cover. CAUTION: The cover is connected by two insulator strands. Be careful not to damage these strands when you remove the cover. 4-12 650CT...
  • Page 137 Grasp the metal tab on the HDD bracket and pull out the HDD. Figure 4-11 Removing the HDD Remove four M2.5x4 flat-head screws securing the HDD bracket to the HDD and remove the bracket. Figure 4-12 Removing the HDD bracket 4-13 650CT...
  • Page 138 Press gently to assure a firm connection. Close the HDD cover. Turn the computer upside down and secure the HDD with two M2x6 silver screws. Install the optional PC card, optional memory module, and battery pack as described in Sections 4.4 back through 4.2. 4-14 650CT...
  • Page 139 Use your fingernail or a thin object to remove the DAA module cover. Figure 4-13 Removing the DAA module cover Remove two M2x6 screws securing the DAA module. Use a small thin, flat screwdriver to pry the DAA module loose from its connection. Figure 4-14 Removing the DAA module 4-15 650CT...
  • Page 140 Free the latches securing the upper cover to the DAA module and remove the cover. Figure 4-15 Removing the DAA board's upper cover Free the latches securing the lower cover to the DAA board and remove the DAA board. Figure 4-16 Removing the DAA board's top cover 4-16 650CT...
  • Page 141 Insert the DAA module into the computer and press gently to secure the connection. Secure the DAA module with two M2x6 screws. Replace the cover starting with the bottom right. Install the battery pack as described in Section 4.2. 4-17 650CT...
  • Page 142 Remove the battery pack as described in Section 4.2. Open the display. Using your fingernail or the Toshiba Case Separating Tool, release the six latches along the front securing the keyboard brace and remove the brace, beginning at the front side.
  • Page 143 PJ15 and PJ14 on the system board. Make sure the pressure connectors are in the up position before attempting to connect them. Seat the keyboard. Seat the keyboard brace and secure the six latches. Install the battery pack as described in Section 4.2. 4-19 650CT...

  • Page 144: Top Cover With Display Assembly

    Remove the battery pack, optional memory module, optional PC card, HDD, DAA and keyboard as described in Sections 4.2 through 4.7. Open the covers to ports and slots. If any cover is damaged replace it. Figure 4-19 Removing the covers to ports and slots 4-20 650CT...
  • Page 145 You may need a pair of tweezers in order to grasp the cable. Figure 4-20 Disconnecting the cables Remove one M2x6 screw securing the ground cable. Figure 4-21 Removing the ground cable screw 4-21 650CT...
  • Page 146 Turn the computer back over and release the latches at the back of the top cover, continue with the latches at the front, then lift off the top cover with display assembly. Figure 4-23 Removing the top cover with display assembly 4-22 650CT...
  • Page 147 Secure one M2x4 silver screw and five M2x6 silver screws on the bottom of the computer. Turn the computer back over and replace the covers on the ports and slots. Install the keyboard, DAA, HDD, optional PC card, optional memory module, and battery pack as described in Sections 4.7 through 4.2. 4-23 650CT...
  • Page 148 Membrane Switch and Backup Battery WARNING: If you replace the backup battery, be sure to use only batteries recommended by Toshiba. Installation of the wrong battery can cause the battery to explode or cause serious damage. Removing the Membrane Switch and Backup Battery To remove the membrane switch and backup battery, follow the steps below and refer to Figure 4-24.
  • Page 149 Seat the membrane switch and its metal cover, and secure the cover with two M2x4 screws. Install the top cover with display assembly, keyboard, DAA module, HDD, optional PC card, optional memory module and battery pack as described in sections 4.8 back through 4.2. 4-25 650CT...
  • Page 150 4.10 RTC Battery, I/O Board and PC Card Slot WARNING: If you replace the RTC battery, be sure to use only batteries recommended by Toshiba. Installation of the wrong battery can cause the battery to explode or cause serious damage.
  • Page 151 (3.0 to 4.8 volts), replace the RTC battery. Install the membrane switch and backup battery, top cover and display assembly, keyboard, DAA module, HDD, optional PC card, optional memory module and battery pack as described in Sections 4.9 back through 4.2. 4-27 650CT...
  • Page 152 Remove one M2x6 screw securing the DAA module cover and I/O board base and lift them out. Figure 4-27 Removing the I/O board base Remove one M2x6 screw securing the modem base and lift out the base. Figure 4-28 Removing the modem base 4-28 650CT...
  • Page 153 Lift out the speaker module and disconnect the speaker cable from PJ504 on the system board. Figure 4-29 Disconnecting the speaker cable Push the guide pins to release the speaker from the speaker case and remove the speaker. Figure 4-30 Removing the speaker from the case 4-29 650CT...
  • Page 154 Install the RTC battery and I/O board and PC card slot, membrane switch and backup battery, top cover with display assembly, keyboard, DAA module, HDD, optional PC card, optional memory module and battery pack as described in Sections 4.10 back through 4.2. 4-30 650CT...

  • Page 155: System Board

    The M2x8 right screw secures the HDD holder. Remove the remaining two M2x6 screws securing the HDD holder and lift out the holder. Figure 4-31 Removing the cover to the battery pack and HDD 4-31 650CT...
  • Page 156 Install the speaker RTC battery and I/O board and PC card slot, membrane switch and backup battery, top cover and display assembly, keyboard, DAA module, HDD, optional PC card, optional memory module and battery pack as described in sections 4.11 back through 4.2. 4-32 650CT...
  • Page 157 Install the system board, speaker, RTC battery and I/O board and PC card slot, membrane switch and backup battery, top cover and display assembly, keyboard, DAA module, HDD, optional PC card, optional memory module and battery pack as described in Sections 4.12 back through 4.2. 4-33 650CT...

  • Page 158: Display Mask

    Carefully remove two screw masks at the bottom corners of the display assembly. NOTE: Support the display with your hand, a book, or a support block when you remove the masks. Remove two M2.5x6 screws that were covered by the screw masks. Figure 4-34 Removing the screw masks 4-34 650CT...
  • Page 159 If desired, use the Toshiba Case Separator tool to release the 17 latches along the edges of the display mask. Begin at the top (four latches), continue along the sides (four latches on each side), and then the bottom (five latches).

  • Page 160: Fl Inverter Board

    Carefully rotate the FL inverter board towards the display to access the FL inverter cable and FL cable. Disconnect the FL inverter cable from CN2 and the FL cable from CN1 and lift out the FL inverter board. Figure 4-36 Removing the FL inverter board 4-36 650CT...
  • Page 161 NOTE: Support the display with your hand, book, or support block when you insert the screws. Install the display mask, optional PC card, optional memory module, and battery pack as described in Sections 4.14, 4.4, 4.3, and 4.2. 4-37 650CT...

  • Page 162: Lcd Module

    NOTE: Lay the display on a support block when you remove the screws. Carefully lift out the LCD module enough to access the display cable. Remove the tape securing the display cable, then disconnect the cable. Figure 4-37 Removing the LCD module 4-38 650CT...
  • Page 163 Connect the display cable to the LCD module and secure it with the cable tape. Seat the LCD module and secure it with four M2x6 screws. Install the FL inverter board, display mask, optional PC card, optional memory module, and battery pack as described in sections 4.15, 4.14, 4.4, 4.3, and 4.2. 4-39 650CT...
  • Page 164 Remove the battery pack, display mask, FL inverter and LCD module as described in sections 4.2, 4.3, 4.4, 4.14, 4.15 and 4.16. Release four latches. Figure 4-38 Releasing the FL inverter latches 4-40 650CT...
  • Page 165 Figure 4-39 Removing the insulator screw and covering Remove four M2x2 screws (two black and two silver) securing the control board, flip up the pressure connector to release the flexible cable and rotate the board up (90° maximum). Figure 4-40 Removing the control board screws 4-41 650CT...
  • Page 166 Remove the silver tape securing the FL cover and remove the cover. Figure 4-41 Removing the FL cover Carefully lift out the FL. Figure 4-42 Removing the FL 4-42 650CT...
  • Page 167 Secure the FL cable with tape. Turn the display panel over and secure the four latches. Install the LCD module, FL inverter board, display mask and battery pack as described in Sections 4.16, 4.15, 4.14 and 4.2. 4-43 650CT...
  • Page 168 4.5, 4.6, 4.7, 4.8, 4.14, 1.15 and 4.16. Remove the one M2.5x6 screw securing the ground cable. Release two latches securing the microphone cable cover and remove the cover. Lift the microphone out of its socket. Figure 4-43 Removing the microphone 4-44 650CT...
  • Page 169 Secure the ground cable with one 2.5x6 screw. Install the LCD module, FL inverter board, display mask, top cover and display assembly, keyboard, DAA, HDD, and battery pack as described in Sections 4.16, 4.15, 4.14, 4.8, 4.7, 4.6, 4.5, and 4.2. 4-45 650CT...
  • Page 170 To remove the Docking Adapter covers, follow the steps below and refer to Figures 4-45 to 4-47. Turn the Docking Adapter upside down and remove five M2.5x6 silver screws and two M2.5x8 silver screws. Figure 4-45 Removing the docking adapter cover screws 4-46 650CT...
  • Page 171 Turn the Docking Adapter over and remove two M2.5x8 silver screws securing the rails and the upper cover, free the four side latches and lift off the rails, then remove the upper cover. Use the Toshiba Case Separator to release the latches securing the upper cover.
  • Page 172 Seat the interface connector cover and secure it with two M2.5x8 silver screws and two M2.5x6 screws. Seat the upper cover, secure the latches and the rails, then secure them with two M2.5x8 silver screws. Turn the Docking Adapter upside down and secure the five M2.5x6 silver screws. 4-48 650CT...
  • Page 173 Figure 4-48 Removing the interface connector assembly Remove three M2.5x4 screws, two M2.5x6 screws and two bolt screws securing the interface connector board to a metal plate. Figure 4-49 Removing the interface connector board and cover 4-49 650CT...
  • Page 174 Secure the metal plate to the interface connector board with three M2.5x4 screws, two M2.5x6 screws, and two bolt screws. Secure the interface connector assembly to the Docking Adapter with four M2.5x6 screws. Install the Docking Adapter covers as described in Section 4.19. 4-50 650CT...
  • Page 175 Remove two springs on each side of the Docking Adapter. Figure 4-51 Removing the Docking Adapter springs Remove one M3x4 screw from the metal lever, then remove the lever and connecting mechanism. Figure 4-52 Removing the metal lever 4-51 650CT...
  • Page 176 Seat the connecting mechanism and lever and secure the lever with one M3x4 screw. Replace the springs on both sides of the Docking Adapter and position the guide rails (right and left). Replace the covers as described in Section 4.19. 4-52 650CT...

  • Page 177: 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 handing it. 650CT...
  • Page 178 Be sure to quickly wipe off any liquid. Glass is used in the panel, so be careful not to drop it or let it strike a hard object, which could cause breakage or cracks. 650CT...
  • Page 179 Do not expose the module to direct sunlight or strong ultraviolet rays for long periods. Do not store the module at temperatures below specifications. Cold can cause the liquid crystals to freeze, lose their elasticity or otherwise suffer damage. 650CT...
  • Page 180 Do not disassemble the LCD module. Disassembly can cause malfunctions. If you transport the module, do not use packing material that contains epoxy resin (amine) or silicon glue (alcohol or oxime). These materials can release gas that can damage the panels' polarization. 650CT...
  • Page 181 Appendix B Board Layout System Board Front View Figure B-1 System board layout (front) 650CT...
  • Page 182 System Board Back View Figure B-2 System board layout (back) 650CT...
  • Page 183 PJ21 Cooling fan connector PJ501 Audio line-in connector PJ502 Internal microphone connector PJ503 External microphone jack connector PJ504 Internal speaker connector PJ507 Headphone connector PJ801 Main battery connector PJ802 DC-IN jack connector PJ803 Backup battery connector S801 Power switch 650CT...
  • Page 184 System memory IC24 BIOS ROM IC25 IC28 IC33 IPS controller IC36 Miscellaneous GA IC57 FIR controller IC48 to IC51 Docking interface Q-SW IC811 Power supply microprocessor Thermistor connector PJ20 Expansion memory connector IC14 and 15 Clock generator S802 Reset switch 650CT...
  • Page 185 I/O Board Front View Figure B-3 I/O board layout (front) 650CT...
  • Page 186 I/O Board Back View Figure B-4 I/O board layout (back) 650CT...
  • Page 187 LCD panel sensor IC31 Fast Infrared Transceiver Table B-4 I/O board ICs and connectors (back) Mark Number Name IC11 PC card controller GA IC22 Video controller IC24 to IC27 Video RAM External FDD connector FMXSY* board connector External monitor connector 650CT...
  • Page 188 650CT...

  • Page 189: Appendix C Pin Assignments

    DHFRAM;000 DBUSY;000 DSTOP;000 DTRDY;000 DCBE2;000 DCBE0;000 DIOCHK;000 P.U (B3V,47K) DINTC;000 DINTB;000 DINTA;000 DPREQ;000 DPGNT;000 MIDIN;100 MIDOT;100 IFVCC IFVCC IFVCC IFVCC SNDMUT;010 SPKDIS;100 MICDIS;100 LINEIR;100 LINEIR;000 CDR;000 CDR;100 CDL;100 MICR;000 MICR;100 MICL;000 LINEOR;100 LINEOL;000 LINEOR;000 LINEOL;100 MICL;100 C - 1 650CT...
  • Page 190 DIRDY;000 DCBE3;000 DCBE1;000 DIRQCK;100 DIRODT;000 DINTD;000 DGNT;000 DFRAME;000 N.C. IFLD2A;002 EXKBCK;100 N.C. EXKBDT;100 MOUSCK;100 QSWON;102 MOUSDT;100 PCM2SP;100 LINEIL;000 LINEIL;100 DOCSMI;100 CDL;000 EJCTRQ;100 JOYDT0;100 JOYDT2;100 JOYDT3;100 JOYDT5;100 JOUDT7;100 N.C. N.C. DSKDC PD5;100 SLIN;000 PD6;100 PE;100 DAD31;100 DAD17;100 C - 2 650CT...
  • Page 191 DREQ;000 N.C. N.C. DCD1;100 SCL;100 RXD1;000 SDA;100 DCRIOT;100 CTS1;100 DSCREQ;000 DSCGNT;000 DTR1;110 DCPCLR;002 MONID0;100 MONID1;100 DSKCHG;000 MONID2;100 JOYDT1;100 MONID3;100 JOYDT4;100 N.C. JOYDT6;100 SELCT;100 BUSY;100 PD7;100 PD2;100 CPCNF;100 DCPWON;100 DAD30;100 DAD29;100 DAD27;100 DAD26;100 DAD24;100 DAD23;100 DAD21;100 DAD20;100 C - 3 650CT...
  • Page 192 Signal Name Pin No. Signal name PS2DT;100 EXKBDT;100 IFVCC PS2CK;100 EXKBCK;100 PJ11 Asynchronous Connector (9-pin) Table C-3 Asynchronous Connector (9-pin) Pin No. Signal Name Pin No. Signal name DCD1;101 RXD1;001 TXD1;011 DTR1;111 DSR1;101 RTS1;101 CTS1;101 RI1;101 C - 4 650CT...
  • Page 193 PJ12 Parallel Connector (25-pin) Table C-4 Parallel Connector (25-pin) Pin No. Signal Name Pin No. Signal name STROB;010 PD0;100 PD1;100 PD2;100 PD3;100 PD4;100 PD5;100 PD6;100 PD7;100 ACK;000 BUSY;100 PE;100 SELCT;100 AUTFD;000 ERROR;000 PINT;000 SLIN;000 C - 5 650CT...
  • Page 194 HDDLED;000 Pull Up (47K) PJ14 KB Connector (1) (14-pin) Table C-6 KB Connector (1) (14-pin) Pin No. Signal Name Pin No. Signal Name KBSTS;000 KBOT11;001 KBOT02;001 KBOT09;001 KBOT10;001 KBOT03;001 KBOT04;001 KBOT05;001 KBOT06;001 KBOT07;001 KBOT08;001 KBOT01;001 KBOT00;001 C - 6 650CT...
  • Page 195 TRDY;000 STOP;000 REQC;000 REQF;000 INTA;000 INTB;000 INTC;000 AD0;100 AD1;100 AD2;100 AD3;100 AD4;100 AD5;100 AD6;100 AD7;100 AD8;100 AD9;100 AD10;100 AD11;100 AD12;100 AD13;100 AD14;100 AD15;100 AD16;100 AD17;100 AD18;100 AD19;100 AD20;100 AD21;100 AD22;100 AD23;100 AD24;100 AD25;100 AD26;100 AD27;100 AD28;100 C - 7 650CT...
  • Page 196 IRQCLK;100 IRQDT;000 PAR;100 IRDY;000 FRAME;000 PBCLK2;100 PBCLK3;100 CBCLK;100 C32P8K;100 CAUDIO;100 RING;000 S0SEL;100 S1SEL;100 C14P3M;102 PCLR;011 PBCLK1;100 RSTVGA;000 PDNVGA;000 CRTEN;000 FLTEN;000 MONID0;100 MONID1;100 FLTEN;001 MONID2;100 MONID3;100 BRIGHT;100 FLSEL0;100 FLSEL1;100 CBLUE;100 CGREEN;100 CRED;100 CHSYNC;100 CVSYNC;100 DSKCHG;000 IFRADY;000 IFHMED;000 C - 8 650CT...
  • Page 197 Signal Name Pin No. Signal Name IFINDX;000 IFTRK0;000 IFWPRO;000 IFRDAT;000 IFDASL;000 IFAMON;000 IFLOD1;000 IFLD2A;000 IFSSEL;000 FLON;000 IFDIRC;000 IFSTEP;000 IFWEN;000 IFWDAT;000 FDALED;100 FIRRXB;100 FIRTXB;100 PCLR;010 IPSSWL IPSSWR RCLR;100 ENVCC;000 MDMSLI;100 MDSLO1;100 MDSLO0;100 MDMSD0;100 AGND ZVLRCK;100 ZVSDAT;100 ZVMCLK;100 C - 9 650CT...
  • Page 198 N.C. (Reserved) N.C. (RFU) N.C. (RFU) WEC;010 RAS2;010 RAS3;010 N.C. (/OE) N.C. (Reserved) N.C. (Reserved) MD16;100 MD17;100 MD18;100 MD19;100 MD20;100 MD21;100 MD22;100 MD23;100 MA6;111 MA8;111 MA9;111 MA10;111 CAS2;011 CAS3;011 MD24;100 MD25;100 MD26;100 MD27;100 MD28;100 MD29;100 MD30;100 MD31;100 N.C. (SDA) C-10 650CT...
  • Page 199 N.C. (Reserved) N.C. (Reserved) N.C. (RFU) WED;010 RAS4;010 RAS5;010 RAS6;010 RAS7;010 N.C. (Reserved) N.C. (Reserved) MD48;100 MD49;100 MD50;100 MD51;100 MD52;100 MD53;100 MD54;100 MD55;100 MA7;111 MA11;111 MA0C;110 MA1C;110 CAS6;011 CAS7;011 MD56;100 MD57;100 MD58;100 MD59;100 MD60;100 MD61;100 MD62;100 MD63;100 N.C. (SCL) C-11 650CT...
  • Page 200 Table C-13 External Microphone Connector (6-pin) Pin No. Signal Name Pin No. Signal Name AGND EXTMIC N.C. INTMIC MIC;000 EXTMIC C.14 PJ504 Speaker Connector (2-pin) Table C-14 Speaker Connector (2-pin) Pin No. Signal Name Pin No. Signal Name SPKP SPKM C-12 650CT...
  • Page 201 C.17 PJ802 DC IN Connector (3-pin) Table C-17 DC IN Connector (3-pin) Pin No. Signal Name Pin No. Signal Name DCIN C.18 PJ803 Backup Battery Connector (2-pin) Table C-18 Backup Battery Connector (2-pin) Pin No. Signal Name Pin No. Signal Name SUBBATT C-13 650CT...
  • Page 202 Table C-20 PC Card Slot Connector (160-pin) (1/3) Pin No. Signal name Pin No. Signal name BCAD0;100 BCAD1;100 BCAD3;100 BCAD5;100 BCAD7;100 BCCBE0;000 BCAD9;100 BCAD11;100 BCAD12;100 BCAD14;100 BCCBE1;000 BCPAR;100 BCPERR;000 BCGNT;000 BCINT;000 CVCCB CVPPB BCCLK;100 BCIRDY;000 BCCBE2;000 BCAD18;100 BCAD20;100 BCAD21;100 BCAD22;100 BCAD23;100 C-14 650CT...
  • Page 203 BCTRDY;000 BCFRAM;000 BCAD17;100 BCAD19;100 BCVS2;100 BCRST;000 BCSERR;000 BCREQ;000 BCCBE3;000 BCAUDI;100 BCSTSC;100 BCAD28;100 BCAD30;100 BCAD31;100 BCCD2;000 ACAD0;100 ACAD1;100 ACAD3;100 ACAD5;100 ACAD7;100 ACCBE0;000 ACAD9;100 ACAD11;100 ACAD12;100 ACAD14;100 ACCBE1;000 ACPAR;100 ACPERR;000 ACGNT;000 ACINT;000 CVCCA CVPPA ACCLK;100 ACIRDY;000 ACCBE2;000 ACAD18;100 ACAD20;100 ACAD21;100 C-15 650CT...
  • Page 204 ACAD25;100 ACAD26;100 ACAD27;100 ACAD29;100 ACD2;100 ACCLKR;100 ACCD1;000 ACAD2;100 ACAD4;100 ACAD6;100 ACD14;100 ACAD8;100 ACAD10;100 ACVS1;100 ACAD13;100 ACAD15;100 ACAD16;100 ACA1B;100 ACLOCK;000 ACSTOP;000 ACDEVS;000 CVCCA CVPPA ACTRDY;000 ACFRAM;000 ACAD17;100 ACAD19;100 ACVS2;100 ACRST;000 ACSERR;000 ACREQ;000 ACCBE3;000 ACAUDI;100 ACSTSC;100 ACAD28;100 ACAD30;100 ACAD31;100 ACCD2;000 C-16 650CT...
  • Page 205 Table C-22 Stacking Connector (160-pin) (1/3) Pin No. Signal Name Pin No. Signal Name B12V B12V PNLOFF;000 DEVSEL;000 TRDY STOP;000 REQC;000 REQF;000 INTA;000 INTB;000 INTC;000 AD0;100 AD1;100 AD2;100 AD3;100 AD4;100 AD5;100 AD6;100 AD7;100 AD8;100 AD9;100 AD10;100 AD11;100 AD12;100 AD13;100 AD14;100 AD15;100 AD16;100 AD17;100 C-17 650CT...
  • Page 206 PGNTC;000 PGNTF;000 PCMSPK;100 PCMSMI;100 HDDLED;000 ARWLED;100 CAPLED;100 NUMLED;100 LEDEN;100 DCIN0;100 DCING;110 BAT0;110 BATG;110 IRQCLK;100 IRQDT;000 PAR;100 IRDY;000 FRAME;000 PBCLK2;100 PBCLK3;100 CBCLK;100 C32P8K;100 CAUDIO;100 RING;000 S0SEL;100 S1SEL;100 C14P3M;102 PCLR;011 PBCLK1;100 RSTVGA;000 PDNVGA;000 CRTEN;000 FLTEN;000 MONID0;100 MONID1;100 FLTEN;001 MONID2;100 MONID3;100 C-18 650CT...
  • Page 207 FDALED;100 FIRRXB;100 FIRTXB;100 PCLR;010 IPSSWL IPSSWR RCLR;100 ENVCC;000 MDMSLI;100 MDSLD1;100 MDSLD0;100 MDSDD0;100 AGND ZVLRCK;100 ZVSDAT;100 ZVMCLK;100 C.23 PJ6 Membrane Switch Connector (4-pin) Table C-23 Membrane Switch Connector (4-pin) Pin No. Signal Name Pin No. Signal Name IPSSWL IPSSWR C-19 650CT...
  • Page 208 TODD2;000 TODD2;100 TCLK;000 TCLK;100 BRIGHT;100 FLSEL0;100 FLSEL1;100 N.C. C.25 PJ8 External Monitor Connector (15-pin) Table C-25 External Monitor Connector (15-pin) Pin No. Signal Name Pin No. Signal Name CRED;100 CGREEN;100 CBLUE;100 MONID2;100 N.C. MONID0;100 MONID1;100 CHSYNC;100 CVSYNC;100 MONID3;100 C-20 650CT...
  • Page 209 Appendix D Keyboard Scan/Character Codes Table D-1 Scan codes (set 1 and set 2) (1/3) Code set 1 Code set 2 Keytop Make Break Make Break Note ‘ ~ 7 & BkSp 29 (42) Caps Lock 650CT...
  • Page 210 E0 F0 11 E0 F0 70 E0 F0 71 ← E0 F0 6B Home E0 F0 6C E0 F0 69 ↑ E0 F0 75 ↓ E0 F0 72 PgUp E0 F0 7D PgDn E0 F0 7A → E0 F0 74 650CT...
  • Page 211 4* Fn key does not generate a code by itself. 5* This key corresponds to key No. 42 in 102-key model. 6* Refer to table D-6, scan codes with Ctrl key. 7* Refer to table D-7, scan codes with Alt key. 650CT...
  • Page 212 E0 F0 74 E0 F0 12 E0 2A E0 5B E0 DB E0 AA E0 12 E0 1F E0 F0 1F E0 F0 12 E0 2A E0 5D E0 DD E0 AA E0 12 E0 2F E0 F0 2F E0 F0 12 650CT...
  • Page 213 E0 2A E0 37 E0 B7 E0 AA E0 12 E0 7C E0 F0 7C E0 F0 12 Ctrl* E0 37 E0 B7 E0 7C E0 F0 7C Shift* E0 37 E0 B7 E0 7C E0 F0 7C Alt* F0 B4 650CT...
  • Page 214 Table D-7 Scan codes with Alt key Code set 1 Code set 2 Shift Make Make Pause Common SD C5 Ctrl* *: This key generates only make codes. 650CT...
  • Page 215 Appendix E Key Layout United States (US) Keyboard Figure E-1 US keyboard United Kingdom (UK) Keyboard Figure E-2 UK keyboard 650CT...
  • Page 216 German (GR) Keyboard Figure E-3 GR keyboard French (FR) Keyboard Figure E-4 FR keyboard 650CT...
  • Page 217 Spanish (SP) Keyboard Figure E-5 SP keyboard Italian (IT) Keyboard Figure E-6 IT keyboard 650CT...
  • Page 218 Scandinavian (SC) Keyboard Figure E-7 SC keyboard Swiss-German (SL) Keyboard Figure E-8 SL keyboard 650CT...

  • Page 219: Appendix F Wiring Diagrams

    Figure F-2 Serial port wraparound connector Serial Port Direct Cable (9-Pin to 9-Pin) (3) TD (4) DTR (7) RTS (5) GND (2) RD (1) CD (6) DSR (8) CTS (9) RI Figure F-3 Serial port direct cable (9-pin to 9-pin) 650CT...
  • Page 220 Serial Port Direct Cable (9-Pin to 25-Pin) (1) CD (2) RD (3) TD (4) DTR (22) (5) GND (7) RTS (6) DSR (20) (8) CTS (9) RI Figure F-4 Serial port direct cable (9-pin to 25-pin) 650CT...
  • Page 221 When the message is displayed, insert the diagnostics disk into the FDD. Press Enter to start the BIOS rewrite. When the BIOS rewrite is finished, eject the diagnostics disk and press the reset switch to restart the system. 650CT...
  • Page 222 650CT...

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