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Toshiba rd-xv48dtkb Service Manual
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Toshiba rd-xv48dtkb Service Manual

Hdd & dvd / video cassette recorder
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See also: Owner's Manual
FILE NO. 810-200836GR
SERVICE MANUAL
HDD & DVD
/ Video Cassette Recorder
RD-XV48DTKB
VCR
REC
The above model is classified as a green product (*1), as indicated by the underlined serial
number. This Service Manual describes replacement parts for the green product. When
repairing this green product, use the part(s) described in this manual and lead-free solder (*2).
For (*1) and (*2), see the next page.
Published in Japan, Jun. 2008 GREEN
TOSHIBA CORPORATION 2008

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  • Page 1 This Service Manual describes replacement parts for the green product. When repairing this green product, use the part(s) described in this manual and lead-free solder (*2). For (*1) and (*2), see the next page. Published in Japan, Jun. 2008 GREEN TOSHIBA CORPORATION 2008...
  • Page 2 Hazardous Substances. From July 1, 2006, the RoHS Directive will prohibit any marketing of new products containing the restricted substances. Increasing attention is given to issues related to the global environmental. Toshiba Corporation recognizes environmental protection as a key management tasks, and is doing its utmost to enhance and improve the quality and scope of its environmental activities.

  • Page 3: Table Of Contents

    MAIN SECTION HDD & DVD / Video Cassette Recorder RD-XV48DTKB Main Section I Specifications I Preparation for Servicing Adjustment Procedures Schematic Diagrams BOARD’s Exploded Views Parts List TABLE OF CONTENTS Specifications ................1-1-1 Laser Beam Safety Precautions.

  • Page 4: Specifications

    SPECIFICATIONS 1-1-1 E3NG1SP...

  • Page 5: Laser Beam Safety Precautions

    LASER BEAM SAFETY PRECAUTIONS This DVD player uses a pickup that emits a laser beam. Do not look directly at the laser beam coming from the pickup or allow it to strike against your skin. The laser beam is emitted from the location shown in the figure. When checking the laser diode, be sure to keep your eyes at least 30 cm away from the pickup lens when the diode is turned on.

  • Page 6: Important Safety Precautions

    IMPORTANT SAFETY PRECAUTIONS Product Safety Notice K. When connecting or disconnecting the internal connectors, first, disconnect the AC plug from the Some electrical and mechanical parts have special AC outlet. safety-related characteristics which are often not evi- L. Be sure to confirm the FAN motor has completely dent from visual inspection, nor can the protection stopped when disconnecting the AC cord for termi- they give necessarily be obtained by replacing them...

  • Page 7: Safety Check After Servicing

    Safety Check after Servicing Examine the area surrounding the repaired location for damage or deterioration. Observe that screws, Chassis or Secondary Conductor parts, and wires have been returned to their original positions. Afterwards, do the following tests and con- Primary Circuit firm the specified values to verify compliance with safety standards.

  • Page 8: Standard Notes For Servicing

    STANDARD NOTES FOR SERVICING NOTE: BOARD MEANS PRINTED CIRCUIT BOARD. Circuit Board Indications Pb (Lead) Free Solder 1. The output pin of the 3 pin Regulator ICs is When soldering, be sure to use the Pb free solder. indicated as shown. How to Remove / Install Flat Pack-IC Top View Bottom View...
  • Page 9 3. The flat pack-IC on the BOARD is affixed with With Soldering Iron: glue, so be careful not to break or damage the foil 1. Using desoldering braid, remove the solder from of each pin or the solder lands under the IC when all pins of the flat pack-IC.
  • Page 10 With Iron Wire: 2. Installation 1. Using desoldering braid, remove the solder from 1. Using desoldering braid, remove the solder from all pins of the flat pack-IC. When you use solder the foil of each pin of the flat pack-IC on the flux which is applied to all pins of the flat pack-IC, BOARD so you can install a replacement flat pack- you can remove it easily.
  • Page 11 Instructions for Handling Semi- conductors Electrostatic breakdown of the semi-conductors may occur due to a potential difference caused by electrostatic charge during unpacking or repair work. 1. Ground for Human Body Be sure to wear a grounding band (1 MΩ) that is properly grounded to remove any static electricity that may be charged on the body.

  • Page 12: Handling Precautions For Hdd

    HANDLING PRECAUTIONS FOR HDD CAUTION: 4. OTHERS a. Be careful so as not to do the followings. 1. SHOCK Otherwise, HDD might be damaged. a. Exposing HDD to shock may be the biggest - DO NOT disassemble HDD. damaging factor. Please note that HDD is easily - When handling HDD, be sure to hold both sides damaged even if dropped from any height.

  • Page 13: Preparation For Servicing

    PREPARATION FOR SERVICING How to Enter the Service Mode About Optical Sensors Caution: An optical sensor system is used for the Tape Start and End Sensors on this equipment. Carefully read and follow the instructions below. Otherwise the unit may operate erratically. What to do for preparation Insert a tape into the Deck Mechanism Assembly and press [VCR PLAY] button.

  • Page 14: Cabinet Disassembly Instructions

    CABINET DISASSEMBLY INSTRUCTIONS NOTE: BOARD MEANS PRINTED CIRCUIT BOARD. 1. Disassembly Flowchart REMOVAL This flowchart indicates the disassembly steps to gain REMOVE/*UNHOOK/ LOC. PART Fig. access to item(s) to be serviced. When reassembling, UNLOCK/RELEASE/ Note follow the steps in reverse order. Bend, route, and UNPLUG/DESOLDER dress the cables as they were originally.
  • Page 15 Reference Notes 1. Locking Tabs (L-1) and (L-2) are fragile. Be careful (S-4) not to break them. [3] Front Bracket 1-1. Remove Screw (S-2). (S-4) 1-2. Release five Locking Tabs (L-1). (S-3) Front 1-3. Release three Locking Tabs (L-2) and Support remove the Front Assembly.
  • Page 16 [15] BOARD Front Jack (S-18) [7] HDD Unit [14] BOARD FFC Guide Switch [9] BOARD ATA Desolder (S-22) (S-19) Chassis CN3001 Earth Plate (S-12) CN3002 (S-20) (S-19) CN3011 HDD Rubber (S-21) [13] BOARD HDD Rubber Power (S-13) Supply (S-13) [8] HDD Support [6] HDD Bracket CN1503 Fig.
  • Page 17 Cylinder Assembly FE Head ACE Head Assembly SW507 LD-SW [17] Deck [19] Assembly BOARD DTV Module Unit [20] BOARD [18] BOARD AV Power Switch [17] Deck Assembly Cam Gear Hole (S-26) Shaft [18] BOARD AV Desolder (S-27) Hole LD-SW [18] BOARD AV Lead with blue stripe Desolder...
  • Page 18 (S-28) [21] Deck Pedestal (S-28) [22] Front Bracket R [23] Bracket R (S-31) DV PlateEarth (S-30) DV Cable (S-29) Fig. D9 3. How to Eject Manually Note: When rotating the gear, be careful not to damage the gear. 1. Remove the Cover Top, Front Assembly, Front Bracket, DVD Mechanism & DVD/HDD MAIN BOARD Assembly.

  • Page 19: Electrical Adjustment Instructions

    ELECTRICAL ADJUSTMENT INSTRUCTIONS NOTE: BOARD MEANS PRINTED CIRCUIT BOARD. NOTE: 1.Electrical adjustments are required after replacing circuit components and certain mechanical parts. It is important to do these adjustments only after Figure 1 all repairs and replacements have been com- pleted.

  • Page 20: How To Self-Check And Initialize The Hdd & Dvd/Vcr

    HOW TO SELF-CHECK AND INITIALIZE THE HDD & DVD/VCR 1. Turn on the HDD & DVD/VCR. 2. To put the HDD & DVD/VCR into the HDD mode, press [HDD] on the remote control unit. 3. To put the HDD & DVD/VCR into the self-check mode, after pressing [VARIABLE SKIP] button, press the [0], [7], and [9] buttons on the remote control in that order within three seconds.
  • Page 21 Table 2: Indication of DVD self-check (*4) INDICATION DESCRIPTION Connection of DVD is normal. NOT FOUND DVD drive cannot be found. FFC cable (connecting to CN652) between the DVD drive and the DVD/HDD MAIN BOARD CABLE ERROR is not connected correctly. Table 3: Indication of HDD self-check (*5) INDICATION DESCRIPTION...
  • Page 22 HOW TO INITIALIZE THE HDD & DVD/VCR To put the program back at the factory-default, initialize the DVD recorder & VCR as the following procedure. < HDD/DVD Section > 1. Turn on the HDD & DVD/VCR. 2. To put the HDD & DVD/VCR into the HDD mode, press [HDD] on the remote control unit. 3.

  • Page 23: Firmware Renewal Mode

    FIRMWARE RENEWAL MODE 1. Turn the power on and remove the disc in the tray. 5. Select the firmware version pressing arrow buttons, then press [ENTER]. 2. To switch the HDD & DVD into the HDD mode, Fig. d appears on the screen and Fig. e appears press [HDD] on the remote control unit.
  • Page 24 How to Verify the Firmware Version 1. Turn the power on and remove the disc in the tray. 2. To switch the HDD & DVD into HDD mode, press [HDD] on the remote control unit. 3. To put the HDD & DVD into version display mode, press [VARIABLE SKIP] and [1], [2], [3] buttons on the remote control unit in that order within 3 seconds.

  • Page 25: Remote Control Key Code

    REMOTE CONTROL KEY CODE NEC Format Name Code Key No. OPEN/CLOSE 45BC-11 INPUT SELECT 45BC-0F HDMI 45BC-B0 ON/STANDBY 45BC-12 OPEN/ INPUT CLOSE SELECT HDMI 45BC-01 45BC-02 .@/: 45BC-03 PROG. UP 45BC-1E PROG. 45BC-04 45BC-05 TIMER PQRS WXYZ PROG. 45BC-06 PROG. DOWN 45BC-1F SETUP SPACE...

  • Page 26: Troubleshooting

    TROUBLESHOOTING NOTE: BOARD MEANS PRINTED CIRCUIT BOARD. 1 Power Supply Section FLOW CHART NO.1 The power cannot be turned on. See FLOW CHART No.2 <The fuse blows out.> Is the fuse normal? Is normal state restored when once unplugged power Check for lead or short-circuiting of primary circuit cord is plugged again after several seconds.
  • Page 27 FLOW CHART NO.6 AL+15V is not outputted. Check D013 and their periphery, and replace Is the supply voltage 44V fed to the cathode of D013? P3(PW/SW ASSEMBLY) if defective. Check for load circuit short-circuiting or leak, and replace P1(AV ASSEMBLY) if defective. FLOW CHART NO.7 TU+30V is not outputted.
  • Page 28 FLOW CHART NO.10 P-ON+5V(DECK) is not outputted. Is 12V voltage supplied to collector of Q1516? Refer to "FLOW CHART NO.8"<AL+12V is not outputted>. Is the "H" pulse (approximately 6V) inputted to Refer to "FLOW CHART NO.9"<P-ON+9V is not the base of Q1516? outputted>.
  • Page 29 FLOW CHART NO.14 ECO+9V is not outputted. Is 10V voltage supplied to collector of Q1521? Refer to "FLOW CHART NO.15"<ECO+12V is not outputted>. Check Q1521 and their periphery, and replace P1(AV ASSEMBLY) if defective. FLOW CHART NO.15 ECO+12V is not outputted. Is 12V voltage supplied to emitter of Q1548? Refer to "FLOW CHART NO.8"<AL+12V(2) is not outputted>.
  • Page 30 FLOW CHART NO.18 P-ON+3.3V is not outputted. Is the supply voltage 5V fed to the cathode of D1101? Check D1101 and their periphery, and replace P3(PW/SW ASSEMBLY) if defective. Is the "H" pulse (approximately 5V) inputted to Check the 1V2CONT signal line, and replace the base of Q1107? P1(AV ASSEMBLY) if defective.
  • Page 31 2 HDD/DVD Section FLOW CHART NO.1 The key operation is not functioning. Are the contact point and the installation state of Re-install the key switches correctly or replace the key switches normal? P3(PW/SW ASSEMBLY). Is the control voltage normally inputted into Pin(8) of Check the key switches and their periphery, and replace IC501? P3(PW/SW ASSEMBLY) if defective.
  • Page 32 FLOW CHART NO.4 VIDEO E-E does not appear normally. Are the video signals inputted to each pin of IC1509? Check the line between video input terminal and each pin of IC1509, and replace P1(AV ASSEMBLY), IC1509 18PIN VIDEO-IN 1 (AV1) P6(BOARD DTV MODULE UNIT) or TU1800.
  • Page 33 Are the video signals outputted to each pin of CN1502? Replace the P2(DVD MECHANISM & DVD/HDD MAIN BOARD ASSEMBLY). CN1502 7PIN VIDEO-Y(I/P)-OUT CN1502 1PIN VIDEO-Y(I)-OUT CN1502 5PIN VIDEO-Pr/Cr-OUT CN1502 3PIN VIDEO-Pb/Cb-OUT CN1502 9PIN VIDEO-C-OUT Are the video signals shown above inputted into each Check the line between each pin of CN1502 and pin of IC1509? each pin of IC1509, and replace P1(AV ASSEMBLY)
  • Page 34 FLOW CHART NO.5 Picture does not appear normally. Set the disc on the disc tray, and playback it. (DVD MODE) Or, playback by selecting the picture in HDD top menu. (HDD MODE) Replace the P2(DVD MECHANISM & DVD/HDD MAIN Are the video signals outputted to each pin of CN1502? BOARD ASSEMBLY).
  • Page 35 FLOW CHART NO.6 Audio E-E does not appear normally. Check the line between audio input terminal and each pin of IC1509, and replace P1(AV ASSEMBLY), P6(BOARD DTV MODULE UNIT) or TU1800 if defective. → IC1509 86,87PIN JK1504 AUDIO-IN1 (AV1) Are the audio signals inputted to each pin of IC1509? →...
  • Page 36 Replace the P2(DVD MECHANISM & DVD/HDD MAIN Are the analog audio signals outputted to each pin of BOARD ASSEMBLY). CN1502? CN1502 17PIN AUDIO (L)-OUT CN1502 15PIN AUDIO (R)-OUT Check each line between each pin of CN1502 and each Are the analog audio signals inputted to each pin of pin of IC1509, and replace P1(AV ASSEMBLY) if IC1509? defective.
  • Page 37 FLOW CHART NO.7 Audio is not outputted during playback. Set the disc on the disc tray, and playback it. (DVD MODE) Or, playback by selecting the picture in HDD top menu. (HDD MODE) Replace the P2(DVD MECHANISM & DVD/HDD MAIN Are the analog audio signals outputted to each pin of BOARD ASSEMBLY).
  • Page 38 3 VCR Section FLOW CHART NO.1 The key operation is not functioning. Are the contact point and the installation state of the Re-install some key switches correctly or replace key switches normal? P1(AV ASSEMBLY). Check the key switches and their periphery, and replace Is the control voltage normally inputted into Pin(7) of P1(AV ASSEMBLY) if defective.
  • Page 39 FLOW CHART NO.3 Cassette tape can not be loaded. When loading a cassette tape, on Pin(100) of IC501, Check the line between the start sensor and Pin(100) does the "L" pulse switch to the "H" pulse? of IC501, and replace P1(AV ASSEMBLY) if defective. When loading a cassette tape, is the specified voltage Replace DECK ASSEMBLY (1B1).
  • Page 40 FLOW CHART NO.6 Capstan Motor does not rotate. Is 5V voltage supplied to Pin(2) of CN502? Check the P-ON+5V line and replace P1(AV ASSEMBLY) if defective. Is over approximately 2.6V voltage supplied to Pin(5) Check the line between Pin(5) of CN502 and Pin(76) of of CN502? IC501, and replace P1(AV ASSEMBLY) if defective.
  • Page 41 FLOW CHART NO.10 Video E-E does not appear normally. Are the video signals inputted to each pin of IC1509? Check the line between video input terminal and each pin of IC1509, and replace P1(AV ASSEMBLY), P6 IC1509 18PIN VIDEO-IN 1 (AV1) (BOARD DTV MODULE UNIT) or TU1800 if defective.
  • Page 42 FLOW CHART NO.11 Check the line between audio input terminal and each Hi-Fi E-E audio does not operate normally. pin of IC1509, and replace P1(AV ASSEMBLY), P6 (BOARD DTV MODUDLE UNIT) or TU1800 if defective. → Are the audio signals inputted to each pin of IC1509? IC1509 86,87PIN JK1504...
  • Page 43 FLOW CHART NO.12 Hi-Fi audio can not be recorded normally. (E-E mode is normal.) Replace P1(AV ASSEMBLY). Is the Hi-Fi-COM signal outputted to Pin(26) of IC451? Check the line between Pin(8) of CN251 and Pin(26) Is the line between Pin(8) of CN251 and Pin(26) of of IC451, and replace P1(AV ASSEMBLY) if defective.
  • Page 44 FLOW CHART NO.15 Audio can not be playbacked normally in the linear audio mode. (E-E mode is normal.) Is the audio signal supplied to Pin(5) of IC301? Is the audio signal outputted to Pin(11) of IC301? Replace P1(AV Check the line between Pin(11) ASSEMBLY).

  • Page 45: Function Indicator Symbols

    FUNCTION INDICATOR SYMBOLS < VCR Section > When the power comes on again after that by pressing [ ] button, an error message is displayed on the TV screen as follows. When reel or capstan mechanism is not functioning P-ON+5V Power safety detection correctly 0:00:00 0:00:00...
  • Page 46 < HDD/DVD Section > Note: If an error occurs, a message with the error number appears on the screen. Recording Error Error message You cannot record on this disc as Power Calibration Area is full. Error No. Error Message Solution Error Description An error occurs during data reading.
  • Page 47 Error Message Solution Error Description Release the disc protection This disc is protected and not setting in the Disc Setting Disc Protected Disc. recordable. menu. Disc is full. Insert a recordable disc with No available recording space. (No area for new recording) enough recording space.
  • Page 48 Error Message Solution Error Description - Set the timer programming - Some portion has not been recorded correctly. because of program overlapping. - Set the timer programming - Recording did not start at the start time. before the start time. Error message is not displayed.

  • Page 49: Block Diagrams

    BLOCK DIAGRAMS Servo/System Control Block Diagram NOTE: BOARD MEANS PRINTED CIRCUIT BOARD. (DECK ASSEMBLY) IC501 (SERVO/SYSTEM CONTROL) BOARD AV SW507 LD-SW IC612 (VFD DRIVER) ACE HEAD ASSEMBLY FL601 CN504 AL+5V LD-SW CONTROL CTL(+) CTL(+) GRID HEAD CTL(-) CTL(-) DRV-DATA DRV-DIN ST-S DRV-CLK 70 DRV-CLK...
  • Page 50 Sub System Control Block Diagram NOTE: BOARD MEANS PRINTED CIRCUIT BOARD. IC501 (SUB MICRO CONTROLLER) DVD/HDD-AUDIO-MUTE DVD/HDD-AUDIO-MUTE AUDIO-MUTE TO AUDIO SELECTOR AUDIO-MUTE BLOCK DIAGRAM SC-AUDIO-MUTE SC-AUDIO-MUTE 1V2CONT 1V2CONT POW-SW POW-SW TO SUB LOW-POW LOW-POW POWER SUPPLY FAN-CONT1 BLOCK DIAGRAM FAN-CONT1 REG-CONT REG-CONT BOARD FRONT JACK...
  • Page 51 Digital Signal Process Block Diagram NOTE: BOARD MEANS PRINTED CIRCUIT BOARD. REC VIDEO SIGNAL PB VIDEO SIGNAL REC AUDIO SIGNAL PB AUDIO SIGNAL IC101 (MAIN MICRO CONTROLLER/MPEG2 AV CODEC) CN3001 CN3002 CN652 CN701 HARD VIDEO-Y(I/P)-OUT 7 DISK VIDEO-Pr/Cr-OUT 5 DRIVE TO VIDEO VIDEO-Pb/Cb-OUT 3 SELECTOR...
  • Page 52 Video Selector Block Diagram NOTE: BOARD MEANS PRINTED CIRCUIT BOARD. REC VIDEO SIGNAL PB VIDEO SUGNAL IC1509 (VIDEO SELECTOR) BOARD BOARD AV REAR JACK Q2001 JK2001 CN2001 CN1506 VIDEO OUT2 BUFFER VIDEO-OUT2 DRIVER VIDEO-G VIDEO-G-IN JK2001 CN1506 CN2001 VIDEO-B VIDEO-B-IN VIDEO-IN2 VIDEO VIDEO-R...

  • Page 53: Video Block Diagram

    Video Block Diagram NOTE: BOARD MEANS PRINTED CIRCUIT BOARD. REC VIDEO SIGNAL PB VIDEO SIGNAL REC AUDIO SIGNAL PB AUDIO SIGNAL (DECK ASSEMBLY) IC501 (OSD) CYLINDER ASSEMBLY CHARACTER IIC-BUS SCL TO SERVO/SYSTEM CONTROL IIC-BUS SDA CN251 BLOCK DIAGRAM IC301 VIDEO(R)-1 VIDEO SIGNAL VIDEO (R)-1 PROCESS...
  • Page 54 Audio Selector Block Diagram NOTE: BOARD MEANS PRINTED CIRCUIT BOARD. REC AUDIO SIGNAL PB AUDIO SIGNAL BOARD REAR JACK IC1509(AUDIO SELECTOR) JK2001 BOARD AV CN1506 CN2001 AUDIO(L)-IN2 AUDIO(L)-IN2 IIC-BUS SDA TO SERVO/SYSTEM AUDIO(R)-IN2 AUDIO(R)-IN2 CONTROL IIC-BUS SCL AUDIO(L)-OUT2 AUDIO(L)-OUT2 BLOCK DIAGRAM AUDIO(R)-OUT2 AUDIO(R)-OUT2 AUDIO-MUTE...

  • Page 55: Audio Block Diagram

    Audio Block Diagram NOTE: BOARD MEANS PRINTED CIRCUIT BOARD. REC AUDIO SIGNAL PB AUDIO SIGNAL BOARD AV N-A-PB TO Hi-Fi AUDIO N-A-REC BLOCK DIGRAM IC301 (AUDIO SIGNAL PROCESS) PB-ON LINE MUTE (DECK ASSEMBLY) SP/LP-ON P-ON+5V ACE HEAD ASSEMBLY REC-ON Q404 CN504 AUDIO 4 AUDIO-PB/REC...
  • Page 56 Hi-Fi Audio Block Diagram NOTE: BOARD MEANS PRINTED CIRCUIT BOARD. REC AUDIO SIGNAL PB AUDIO SIGNAL BOARD AV VCR-AUDIO-IN(L) TO AUDIO VCR-AUDIO-IN(R) SELECTOR BLOCK DIAGRAM IC451 (Hi-Fi AUDIO SIGNAL PROCESS) R-CH IIC-BUS SDA SERIAL COMP NOISE DATA IIC-BUS SCL DECODER R-CH SERVO/ SYSTEM MUTE-ON...
  • Page 57 Power Supply Block Diagram NOTE: BOARD MEANS PRINTED CIRCUIT BOARD. CAUTION ! CAUTION ! NOTE: Fixed voltage (or Auto voltage selectable) power supply circuit is used in this unit. For continued protection against fire hazard, The voltage for parts in hot circuit is measured using If Main Fuse (F1001) is blown , check to see that all components in the power supply replace only with the same type fuse.
  • Page 58 Sub Power Supply Block Diagram NOTE: BOARD MEANS PRINTED CIRCUIT BOARD. CN1503 Q1550 1 AL-30V 2 AL+44V AL+15V Q1511 3,4 AL+16.3V TU+30V 7,8 AL+12V 12 P-ON+10V Q1554 Q1552 Q1512 14,15 P-ON+5V 16,17 AL+5V(3) Q1508 26 SYS+5V POWER SUPPLY AL+16V/+12V 25 F1 BLOCK DIAGRAM 24 F2 (CL1001)
  • Page 59 DTV Module Block Diagram NOTE: BOARD MEANS PRINTED CIRCUIT BOARD. REC VIDEO SIGNAL REC AUDIO SIGNAL IC2500 (DVB-T DEMODULATOR) IC2602 (DTV SIGNAL PROCESS) TU1800 (TUNER UNIT) CN2701 CN1800 DTV-Y VIDEO TO VIDEO CN1800 CN2700 DTV-Y VIDEO DTV-C SELECTOR DIF-OUT1 DIF-OUT1 ENCODER DTV-C CONVERTER...

  • Page 60: Schematic Diagrams / Board's And Test Points

    SCHEMATIC DIAGRAMS / BOARD’S AND TEST POINTS NOTE: BOARD MEANS PRINTED CIRCUIT BOARD. Standard Notes WARNING Many electrical and mechanical parts in this chassis have special characteristics. These characteristics often pass unnoticed and the protection afforded by them cannot necessarily be obtained by using replacement components rated for higher voltage, wattage, etc.
  • Page 61 LIST OF CAUTION, NOTES, AND SYMBOLS USED IN THE SCHEMATIC DIAGRAMS ON THE FOLLOWING PAGES: 1. CAUTION: FOR CONTINUED PROTECTION AGAINST FIRE HAZARD, REPLACE ONLY WITH THE SAME TYPE FUSE. 2. CAUTION: Fixed Voltage (or Auto voltage selectable) power supply circuit is used in this unit. If Main Fuse (F1001) is blown, first check to see that all components in the power supply circuit are not defective before you connect the AC plug to the AC power supply.
  • Page 62 AV 1/9 Schematic Diagram < VCR Section > NOTE: BOARD MEANS PRINTED CIRCUIT BOARD. 1-14-3 E3NG1SCAV1...
  • Page 63 AV 2/9 , POWER SWITCH & SENSOR Schematic Diagram < VCR Section > NOTE: BOARD MEANS PRINTED CIRCUIT BOARD. FL601 MATRIX CHART BS CS DR DTV BS CS 1-14-4 E3NG1SCAV2...
  • Page 64 AV 3/9 Schematic Diagram < VCR Section > NOTE: BOARD MEANS PRINTED CIRCUIT BOARD. 1-14-5 E3NG1SCAV3...
  • Page 65 AV 4/9 Schematic Diagram < VCR Section > NOTE: BOARD MEANS PRINTED CIRCUIT BOARD. 1-14-6 E3NG1SCAV4...
  • Page 66 AV 5/9 Schematic Diagram < VCR Section > NOTE: BOARD MEANS PRINTED CIRCUIT BOARD. 1-14-7 E3NG1SCAV5...
  • Page 67 AV 6/9 Schematic Diagram < VCR Section > NOTE: BOARD MEANS PRINTED CIRCUIT BOARD. 1-14-8 E3NG1SCAV6...
  • Page 68 AV 7/9 Schematic Diagram < VCR Section > NOTE: BOARD MEANS PRINTED CIRCUIT BOARD. 1-14-9 E3NG1SCAV7...
  • Page 69 AV 8/9 Schematic Diagram < VCR Section > NOTE: BOARD MEANS PRINTED CIRCUIT BOARD. 1-14-10 E3NG1SCAV8...
  • Page 70 AV 9/9 Schematic Diagram < VCR Section > NOTE: BOARD MEANS PRINTED CIRCUIT BOARD. 1-14-11 E3NG1SCAV9...
  • Page 71 POWER SUPPLY Schematic Diagram < VCR Section > NOTE: BOARD MEANS PRINTED CIRCUIT BOARD. CAUTION ! CAUTION ! NOTE: Fixed voltage (or Auto voltage selectable) power supply circuit is used in this unit. For continued protection against fire hazard, The voltage for parts in hot circuit is measured using If Main Fuse (F1001) is blown , check to see that all components in the power supply replace only with the same type fuse.
  • Page 72 FRONT JACK & SWITCH Schematic Diagram < VCR Section > NOTE: BOARD MEANS PRINTED CIRCUIT BOARD. 1-14-13 E3NG1SCFJ...
  • Page 73 REAR JACK Schematic Diagram < VCR Section > ATA Schematic Diagram < DVD/HDD Section > NOTE: BOARD MEANS PRINTED CIRCUIT BOARD. E3NG1SCRJ E3NG1SCAT 1-14-14...
  • Page 74 DVD/HDD MAIN 1/7 Schematic Diagram < DVD/HDD Section > NOTE: BOARD MEANS PRINTED CIRCUIT BOARD. 1 NOTE: The order of pins shown in this diagram is different from that of actual IC101. IC101 is divided into six and shown as IC101 (1/6) ~ IC101 (6/6) in this DVD/HDD Main Schematic Diagram Section. 1-14-15 E3NG1SCD1...
  • Page 75 DVD/HDD MAIN 2/7 Schematic Diagram < DVD/HDD Section > NOTE: BOARD MEANS PRINTED CIRCUIT BOARD. 1 NOTE: The order of pins shown in this diagram is different from that of actual IC101. IC101 is divided into six and shown as IC101 (1/6) ~ IC101 (6/6) in this DVD/HDD Main Schematic Diagram Section. 1-14-16 E3NG1SCD2...
  • Page 76 DVD/HDD MAIN 3/7 Schematic Diagram < DVD/HDD Section > NOTE: BOARD MEANS PRINTED CIRCUIT BOARD. 1 NOTE: The order of pins shown in this diagram is different from that of actual IC101. IC101 is divided into six and shown as IC101 (1/6) ~ IC101 (6/6) in this DVD/HDD Main Schematic Diagram Section. 1-14-17 E3NG1SCD3...
  • Page 77 DVD/HDD MAIN 4/7 Schematic Diagram < DVD/HDD Section > NOTE: BOARD MEANS PRINTED CIRCUIT BOARD. 1 NOTE: The order of pins shown in this diagram is different from that of actual IC101. IC101 is divided into six and shown as IC101 (1/6) ~ IC101 (6/6) in this DVD/HDD Main Schematic Diagram Section. 1-14-18 E3NG1SCD4...
  • Page 78 DVD/HDD MAIN 5/7 Schematic Diagram < DVD/HDD Section > NOTE: BOARD MEANS PRINTED CIRCUIT BOARD. 1 NOTE: The order of pins shown in this diagram is different from that of actual IC101. IC101 is divided into six and shown as IC101 (1/6) ~ IC101 (6/6) in this DVD/HDD Main Schematic Diagram Section. 1-14-19 E3NG1SCD5...
  • Page 79 DVD/HDD MAIN 6/7 Schematic Diagram < DVD/HDD Section > NOTE: BOARD MEANS PRINTED CIRCUIT BOARD. 1-14-20 E3NG1SCD6...
  • Page 80 DVD/HDD MAIN 7/7 Schematic Diagram < DVD/HDD Section > NOTE: BOARD MEANS PRINTED CIRCUIT BOARD. 1 NOTE: The order of pins shown in this diagram is different from that of actual IC101. IC101 is divided into six and shown as IC101 (1/6) ~ IC101 (6/6) in this DVD/HDD Main Schematic Diagram Section. 1-14-21 E3NG1SCD7...
  • Page 81 DTV MODULE Schematic Diagram NOTE: BOARD MEANS PRINTED CIRCUIT BOARD. 1-14-22 E3NG1SCDTV...
  • Page 82 BOARD AV Top View NOTE: BOARD MEANS PRINTED CIRCUIT BOARD. BOARD SENSOR View TO BOARD SENSOR (END-SENSOR) TP504 VR501 TP503 TP301 SW-POINT RF-SW C-PB BHF300F01012A BHF300F01012B J184 AV1-V-OUT1 J917 S-INH TO BOARD SENSOR (START-SENSOR) 1-14-23 BE3N00F01011A...
  • Page 83 BOARD AV Bottom View NOTE: BOARD MEANS PRINTED CIRCUIT BOARD. PIN 56 OF IC301 PIN 30 OF IC1509 WF10 PIN 28 OF CN1503 PIN 3 OF CN1502 PIN 5 OF CN1502 PIN 7 OF CN1502 PIN 9 OF CN1502 PIN 17 OF CN1502 1-14-24 BE3N00F01011A...
  • Page 84 BOARD POWER SUPPLY Top View NOTE: BOARD MEANS PRINTED CIRCUIT BOARD. Because a hot chassis ground is present in the power CAUTION ! CAUTION ! supply circut, an isolation transformer must be used. For continued protection against fire hazard, Fixed voltage (or Auto voltage selectable) power supply circuit is used in this unit. Also, in order to have the ability to increase the input replace only with the same type fuse.
  • Page 85 BOARD POWER SUPPLY Bottom View NOTE: BOARD MEANS PRINTED CIRCUIT BOARD. CAUTION ! Because a hot chassis ground is present in the power CAUTION ! supply circut, an isolation transformer must be used. For continued protection against fire hazard, Fixed voltage (or Auto voltage selectable) power supply circuit is used in this unit. Also, in order to have the ability to increase the input replace only with the same type fuse.
  • Page 86 BOARD FRONT JACK Top View NOTE: BOARD MEANS PRINTED CIRCUIT BOARD. BOARD SWITCH BOARD SWITCH Bottom View Top View BOARD FRONT JACK Bottom View BE3N00F01021C BE3N00F01021B 1-14-27...
  • Page 87 BOARD REAR JACK Top View BOARD REAR JACK Bottom View NOTE: BOARD MEANS PRINTED CIRCUIT BOARD. BE3N00F01021D BOARD POWER SWITCH BOARD POWER SWITCH BOARD ATA Top View BOARD ATA Bottom View Top View Bottom View BE3N00F01011B BE4340F01032 1-14-28...

  • Page 88: Waveforms

    WAVEFORMS NOTE: Input: COLOR BAR SIGNAL (WITH 1KHz AUDIO SIGNAL) Pin 56 of IC301 Pin 9 of CN1502 Pin 17 of CN1502 V-OUT E-E 0.2V 20μs VIDEO-C 0.2V 20μs AUDIO(L)-OUT 0.5ms Pin 56 of IC301 UPPER Pin 30 of IC1509 Pin 28 of CN1503 TP504 WF10...

  • Page 89: Wiring Diagram

    WIRING DIAGRAM Wiring 1/2 Diagram NOTE: BOARD MEANS PRINTED CIRCUIT BOARD. REAR DIGITAL AUDIO OUT VIDEO- VIDEO- VIDEO- AUDIO(L) AUDIO(R) Y-OUT Pb/Cb-OUT Pr/Cr-OUT -OUT -OUT COAXIAL CN1506 (DECK ASSEMBLY) CN1801 ACE HEAD GND 1 JK1504 (AV1) ASSEMBLY DTV-SYS-RESET 2 CN504 DVD/HDD AUDIO DTV-TXD 3...
  • Page 90 Wiring 2/2 Diagram NOTE: BOARD MEANS PRINTED CIRCUIT BOARD. DVD MECHANISM & DVD/HDD MAIN BOARD ASSEMBLY DV JACK DVD MECHANISM CN101 CN1001 CL1001 (W11) CN502-D GND 30 AL-30V 1 CN1001-R CN301 GND 1 GND 29 AL+44V 2 2 SW1 DTV-SYS-RESET 2 TO BOARD GND 28 AL+16.3V 3...

  • Page 91: Ic Pin Function Descriptions

    IC PIN FUNCTION DESCRIPTIONS < VCR Section > Signal Function Name IC501 ( SERVO / SYSTEM CONTROL ) VCR- VCR Audio Mute Control 27 OUT AUDIO- Signal (Mute=“H”) Signal MUTE Function Name IN A-MODE Hi-Fi Tape Defection Signal Input Signal from Pin 8 of IN SC2-IN 29 OUT AUDIO- Audio Mute Control Signal...
  • Page 92 Signal Signal Function Function Name Name Ground Capstan Motor Rotation IN C-FG Detection Pulse Composite Synchronized IN C-SYNC Pulse AMPVss Ground 59 OUT POW-SW Power Switching Signal IN DVD-POW DVD P-ON Power Defection SAFETY2 Input Signal2 60 OUT REG- Power Regulator Control CONT Signal Drum Motor Phase/...
  • Page 93 IC612 ( VFD DRIVER ) Signal Function Name Signal Function Name Ground POWER- POWER-LED Control Signal OUT DVD-LED DVD-LED Control Signal OUT VCR-LED VCR-LED Control Signal OUT HDD-LED HDD-LED Control Signal IN OSC Oscillator Input Not Used IN DRV-DIN Serial Data Input IN DRV-CLK Serial Clock Input IN DRV-STB...

  • Page 94: Lead Identifications

    LEAD IDENTIFICATIONS KRC103M-AT/P KTA-1266-GR-AT/P KIA431-AT/P KTC2026-Y/P 2SK3798(Q) KRA103M-AT/P KTC3198-GR-AT/P KRA104M-AT/P KTC3203-Y-AT/P KTC3199-(BL,GR)-AT/P KTC3266-GR-AT/P KTA1267-GR-AT/P 2SC2120-Y(TE2 F T) B C E R A K G D S E C B E C B LA72648M-MPB-E KTA1281Y-AT/P PQ070XFC1SZF LD1117V KTB1151-Y-U/P PT204-6B-12 E C B 1 2 3 1 2 3 4 E C B...

  • Page 95: Exploded Views

    EXPLODED VIEWS Cabinet See Electrical Parts List for parts with this mark. BOARD REAR JACK TU1800 ( P6 ) BOARD DTV MODULE UNIT ( P4 ) ( P2 ) B-25 BOARD SENSOR DVD MECHANISM & DVD/HDD MAIN BOARD ASSEMBLY BOARD AV B-15 ( P1 ) ASSEMBLY...
  • Page 96 (P1) AV ASSEMBLY (P4) BOARD SENSOR (P6) BOARD DTV MODULE UNIT BOARD REAR JACK ( P6 ) BOARD DTV MODULE UNIT TU1800 ( P4 ) BOARD SENSOR BOARD AV ( P1 ) ASSEMBLY SW1601 SW521 SW522 SW523 SW524 SW525 SW1501 BOARD POWER SWITCH SW1502 (P3) PW/SW ASSEMBLY...
  • Page 97 (P2) DVD MECHANISM & DVD/HDD MAIN BOARD ASSEMBLY ( P2 ) DVD MECHANISM & DVD/HDD MAIN BOARD ASSEMBLY (P5) BOARD ATA ( P5 ) BOARD ATA 1-19-3 E3NG1CEX...
  • Page 98 Packing Lower Side Upper Side 1-19-4 E3NG1PEX...

  • Page 99: Mechanical Parts List

    MECHANICAL PARTS LIST PRODUCT SAFETY NOTE: Products marked with a ! have special characteristics important to safety. Before replacing any of these components, read carefully the product safety notice in this service manual. Don't degrade the safety of the product through improper servicing.

  • Page 100: Electrical Parts List

    ELECTRICAL PARTS LIST PRODUCT SAFETY NOTE: Products marked with a BOARD SENSOR ! have special characteristics important to safety. Location Before replacing any of these components, read TSB P/N Reference No. Description carefully the product safety notice in this service 79103349 1VSA13519 BOARD SENSOR...
  • Page 101 BOARD SWITCH Location TSB P/N Reference No. Description ---------- ---------- BOARD SWITCH Following parts are included in BOARD SWITCH. SW3008 79102423 SST0101AL041 TACT SWITCH SKQSAF001A SW3009 79102423 SST0101AL041 TACT SWITCH SKQSAF001A SW3010 79102423 SST0101AL041 TACT SWITCH SKQSAF001A BOARD ATA Location TSB P/N Reference No.
  • Page 102 DECK MECHANISM SECTION HDD & DVD / Video Cassette Recorder RD-XV48DTKB Deck Mechanism Section I Standard Maintenance Mechanism Alignment Procedures Disassembly / Assembly of Mechanism Deck Exploded Views TABLE OF CONTENTS Standard Maintenance ..............2-1-1 Service Fixture and Tools.

  • Page 103: Standard Maintenance

    STANDARD MAINTENANCE Service Schedule of Components This maintenance chart shows you the standard of replacement and cleaning time for each part. Because those may replace depending on environment and purpose for use, use the chart for reference. h: Hours : Cleaning : Replace Deck Periodic Service Schedule...
  • Page 104 Cleaning Cleaning of ACE Head Clean the head with a cotton swab. Cleaning of Video Head Procedure Clean the head with a head cleaning stick or chamois 1.Remove the top cabinet. cloth. 2.Dip the cotton swab in 90% ethyl alcohol and clean Procedure the ACE Head.

  • Page 105: Service Fixture And Tools

    SERVICE FIXTURE AND TOOLS J-1-1, J-1-2 Ref. No. Name Part No. Adjustment J-1-1 Alignment Tape FL6A Head Adjustment of ACE Head J-1-2 Alignment Tape FL6N8 Azimuth and X Value Adjustment of ACE Head / (2 Head model) Adjustment of Envelope Waveform FL6NS8 (4 Head model) Guide Roller Adj.

  • Page 106: Mechanical Alignment Procedures

    MECHANICAL ALIGNMENT PROCEDURES Explanation of alignment for the tape to correctly run B. Method to place the Cassette Holder in the tape- starts on the next page. Refer to the information below loaded position without a cassette tape on this page if a tape gets stuck, for example, in the 1.
  • Page 107 1. Tape Interchangeability Alignment Note: To do these alignment procedures, make sure that the Tracking Control Circuit is set to the preset position every time a tape is loaded or unloaded. (Refer to page 2-3-4, procedure 1-C, step 2.) Equipment required: Dual Trace Oscilloscope VHS Alignment Tape (FL6NS8) Guide Roller Adj.
  • Page 108 1-A. Preliminary/Final Checking and 4. If creasing or snaking is apparent, adjust the Tilt Alignment of Tape Path Adj. Screw of the ACE Head. (Fig. M6) Purpose: To make sure that the tape path is well stabilized. Azimuth Adj. Screw Symptom of Misalignment: If the tape path is unstable, the tape will be damaged.
  • Page 109 either at the beginning or end of track as shown in 5. To shift the CTL waveform, press [PROGRAM Fig. M10. or [PROGRAM ] button. Then make sure that the maximum output position of PB FM envelope Dropping envelope level at the beginning of track. ±...
  • Page 110 1-D. Azimuth Alignment of Audio/Con- 2. When the tape has been curled up or bent, turn the trol/ Erase Head alignment screw to adjust the height of REV Post. (Refer to Fig. M11 and M13.) Purpose: To correct the Azimuth alignment so that the Audio/ Control/Erase Head meets tape tracks properly.

  • Page 111: Disassembly/Assembly Procedures Of Deck Mechanism

    DISASSEMBLY/ASSEMBLY PROCEDURES OF DECK MECHANISM Before following the procedures described below, be sure to remove the deck assembly from the cabinet. (Refer to CABINET DISASSEMBLY INSTRUCTIONS.) All the following procedures, including those for adjustment and replacement of parts, should be done in Eject mode;...
  • Page 112 REMOVAL INSTALLATION STEP START- REMOVE/*UNHOOK/ /LOC. PART ADJUSTMENT Fig. No. UNLOCK/RELEASE/ CONDITION UNPLUG/DESOLDER [32] [26] Idler Assembly (HI) DM1H, DM14H *(L-9) [33] [26] BT Arm DM2H, DM14H *(P-5) Loading Arm (SP) (+)Refer to Alignment [34] [26] DM2H, DM14H Assembly Sec.Page 2-5-1 Loading Arm (TU) (+)Refer to Alignment [35]...
  • Page 113 Top View [44] [45] [49] [46] [14] [13] [11] [15] [38] [10] [12] [37] [36] [43] [32] [41] [31] [40] [42] Fig. DM1H Bottom View [19] [35] [34] [25] [23] [24] [26] [27] [25a] [22] [28] [20] [33] Fig. DM2H 2-4-3 E9NG0DA...
  • Page 114 (S-1) (S-1) (L-1) (L-3) (L-2) (S-1A) (P-1) Installation of [3] and [6] First, insert [6] diagonally in [3] as shown below. Then, install [6] in [3] while pushing (L-1) in the direction of the arrow. After installing [6] in [3], confirm that pin A of [3] enters hole A of [6] properly.
  • Page 115 [11] (S-4A) (L-4) [49] (P-3) [13] [50] Removal of [11] [12] (L-12) 1) Remove screw (S-4A). 2) Unhook spring (P-2). [10] 3) Release (L-4) while (P-2) holding [12] with a finger. 4) Loosen a finger holding [12] and remove [11]. (S-2) Pin of [12] Pin of [10]...
  • Page 116 Installation of [13] and [12] (S-5) [14] (S-6) [13] [15] Hook spring (P-3) up to [12] and [13], then install them to (P-3) the specified position so that [12] will be floated slightly while holding [12] and [13]. (Refer to Fig. A.) [12] Fig.
  • Page 117 (C-1) turn [22] (S-8) [20] (L-6) [21] [19] Cap Belt Pin on [22] Installation position of Cap Belt [20] Cap Belt [27] Position of pin on [22] Fig. DM12H [19] View for A Fig. DM11H 2-4-7 E9NG0DA...
  • Page 118 Installation of [26] (S-9a) Position of Mode Lever when installed [25a] Pin of [33] Pin of [37] Pin of [36] [26] (C-3) (S-9) Bottom View (L-8) [26] [27] [23] (L-7) [24] Align [26] and [27] as shown. (C-5) (C-4) (C-2) [28] First groove on [27] [25]...
  • Page 119 [38] [36] [43] (P-6) turn [39] (L-10) turn [42] turn [47] [48] Slide [37] Fig. DM17H (C-7) [41] (C-6) [40] Fig. DM15H [45] [44] [46] (L-11) Slide Plate (S-11) Fig. DM16H 2-4-9 E9NG0DA...

  • Page 120: Alignment Procedures Of Mechanism

    ALIGNMENT PROCEDURES OF MECHANISM The following procedures describe how to align the Alignment 1 individual gears and levers that make up the tape load- Loading Arm (SP) and (TU) Assembly ing/unloading mechanism. Since information about the state of the mechanism is provided to the System Install Loading Arm (SP) and (TU) Assembly so that Control Circuit only through the Mode Switch, it is their triangle marks point to each other as shown in...

  • Page 121: Deck Exploded Views

    DECK EXPLODED VIEWS Deck Mechanism View 1 Mark Description Floil G-684G or Multemp MH-D (Blue grease) SLIDUS OIL #150 B494 L1467 B553 L1191 B411 B567 L1053 B410 L1051 Chassis Assembly Top View (Lubricating Point) L1322 B501 L1450 L1450 L1466 B121 B126 B492 B571...
  • Page 122 Deck Mechanism View 2 Mark Description Floil G-684G or Multemp MH-D (Blue grease) B587 B521 B487 SLIDUS OIL #150 B416 B591 SANKOUL FG84M (Yellow grease) B590 B522 L1406 B148 B573 B499 B508 B574 B592 B585 B518 B558 B564 B557 B414 B572 B565 L1151...
  • Page 123 Deck Mechanism View 3 Mark Description Floil G-684G or Multemp MH-D (Blue grease) L1321 SLIDUS OIL #150 B347 L1321 B355 B354 B483 L1341 B425 B482 B562 B300 B563 B313 B529 B360 B359 B361 B555 B303 Some Ref. Numbers are not in sequence. B514 2-6-3 E9NG0DEX...

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