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Toshiba D-VR7KC Service Manual

Dvd video recorder/video cassette recorder
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FILE NO. 810-200808GR
SERVICE MANUAL
DVD Video Recorder
/Video Cassette Recorder
D-VR7KC
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.
TOSHIBA CORPORATION 2008
Published in Japan, Apr. 2008 GREEN

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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. TOSHIBA CORPORATION 2008 Published in Japan, Apr. 2008 GREEN...
  • 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 DVD VIDEO RECORDER & VIDEO CASSETTE RECORDER D-VR7KC Main Section I Specifications I Preparation for Servicing I Adjustment Procedures I Schematic Diagrams I BOARD’s I Exploded Views I Parts List TABLE OF CONTENTS Specifications ................1-1-1 Laser Beam Safety Precautions.

  • Page 4: Specifications

    SPECIFICATIONS 1-1-1 E9KG0SP...

  • 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 evident from visual inspection, nor can the protection they give necessarily be obtained by replacing them with components rated for higher voltage, wattage, etc.
  • Page 7 Safety Check after Servicing Examine the area surrounding the repaired location for damage or deterioration. Observe that screws, parts, and wires have been returned to their original positions. Afterwards, do the following tests and confirm the specified values to verify compliance with safety standards. 1.

  • 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 2. Installation With Iron Wire: 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: 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 the [ O ] (VCR) button.

  • Page 13: 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 14 (4): Identification of parts to be removed, unhooked, unlocked, released, unplugged, unclamped, or desoldered. (S-3) P=Spring, L=Locking Tab, S=Screw, CN=Connector (S-3) *=Unhook, Unlock, Release, Unplug, or Desolder e.g. 6(S-1) = six Screws (S-1), [3] Front (S-4) 5(L-1) = five Locking Tabs (L-1) Bracket (5): Refer to “Reference Notes.”...
  • Page 15 Mecha Plate Earth R (S-8) (S-6a) (S-6) (S-10) CN502 (S-9) (S-6) (S-6) CN701 CN101 [8] Panel Rear Unit (S-8) (S-11) (S-8) [7] Dust Cover (S-11) Hook Mechanism & [9] BOARD Tuner DVD Main CN2610 BOARD Assembly CN2611 CN1102 (S-7) Fig. D5 [13] Panel Rear See Reference Notes 4.
  • Page 16 (S-16) (S-14) [16] D/T Bracket L (S-14) [14] BOARD (S-17) Power Supply (S-18) (S-18) (S-15) Board Washer (S-15) (S-20) [15] BOARD Holder (S-21) Plate Earth (S-19) [17] VCR (S-18) Chassis (S-22) Unit CN1101 Fig. D7 Fig. D8 1-6-4 E9KG0DC...
  • Page 17 [18] Deck Cylinder Assembly Assembly FE Head ACE Head Assembly SW1512 LD-SW [19] BOARD [21] BOARD Main Power Switch [21] BOARD Main [18] Deck Assembly Cam Gear (S-23) Hole (S-24) Shaft [20] BOARD DVD Lead open/close Switch with Desolder Hole blue stripe LD-SW...
  • Page 18 (S-25) (S-25) (S-25) (S-25) [22] Deck Pedestal [23] Front Bracket R (S-26) Fig. D10 1-6-6 E9KG0DC...
  • Page 19 3. How to Eject Manually Note: When rotating the gear, be careful not to damage the gear. 1. Remove the Cover Top. 2. Remove the Panel Front. 3. Remove the Front Bracket. 4. Remove the DVD Mechanism & DVD Main BOARD Assembly. 5.

  • Page 20: 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 21: How To Initialize The Dvd Recorder & Vcr

    HOW TO INITIALIZE THE DVD RECORDER & VCR To put the program back at the factory-default, initialize the DVD recorder & VCR as the following procedure. < DVD Section > 1. Turn the DVD recorder on. 2. Confirm that no disc is loaded or that the disc tray is open.

  • Page 22: Firmware Renewal Mode

    FIRMWARE RENEWAL MODE 1. Turn the power on and remove the disc on the tray. 4. Select the firmware version pressing arrow buttons, then press [ENTER]. 2. To put the DVD recorder into version up mode, Fig. d appears on the screen and Fig. e appears press [INSTANT SKIP], [6], [5], and [4] buttons on on the VFD.

  • Page 23: Remote Control Key Code

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

  • Page 24: 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 Check for lead or short-circuiting of primary power cord is plugged again after several seconds.
  • Page 25 FLOW CHART NO.6 P-ON+9V is not outputted. Check D1014, D1017, C1012, and their periphery, Is 12V voltage supplied to the collector of Q1055? and replace P3 (BOARD POWER SUPPLY) if defective. Is 10V voltage supplied to the base of Q1055? Is the "L"...
  • Page 26 FLOW CHART NO.10 P-ON+11V is not outputted. Check D1014, D1017, C1012 and their periphery, Is 12V voltage supplied to the emitter of Q1102? and replace P3 (BOARD POWER SUPPLY) if defective. Is the "H" pulse inputted to the base of Q1103? Is 10V voltage supplied to the base of Q1102? Check IC1501 and their Check Q1103, R1106...
  • Page 27 FLOW CHART NO.15 The fluorescent display tube does not light up. Is 5V voltage supplied to Pin(6, 24) of IC1571? Check the AL+5V line and replace P3 (BOARD POWER SUPPLY) if defective. Is approximately -24V to -28V voltage supplied to Check the -FL line and replace P1 (BOARD MCV) or P3 (BOARD POWER SUPPLY) if defective.
  • Page 28 2 DVD Section FLOW CHART NO.1 The key operation is not functioning. Are the contact point and the installation state of Re-install some key switches correctly or the key switches normal? replace P1 (BOARD MCV) if defective. Check the key switches and their periphery, and Is the control voltage normally inputted into replace P1 (BOARD MCV) if defective.
  • Page 29 FLOW CHART NO.4 The disc tray cannot be opened and closed. [No Disc] indicated. Both functions of picture and sound do not operate normally. Replace P2 (DVD MECHANISM & DVD MAIN BOARD ASSEMBLY). FLOW CHART NO.5 VIDEO E-E does not appear normally. Are the video signals inputted to each pin of Check the line between video input terminal and IC2805?
  • Page 30 Is 5V voltage supplied to the Pin(4, 12) of Are the video signals outputted to each pin of IC2405 and the Pin(4) of IC2404? IC2404 and each pin of IC2405? IC2405 13PIN VIDEO-Y(I/P) Check P-ON+5V line and Replace IC2405 10PIN VIDEO-Pr/Cr replace P1 (BOARD MCV) P1 (BOARD MCV).
  • Page 31 FLOW CHART NO.6 Picture does not appear normally. Set the disc on the disc tray, and playback. Replace P2 (DVD MECHANISM & DVD MAIN Are the video signals outputted to each pin of BOARD ASSEMBLY). CN2201? CN2201 7PIN VIDEO-Y(I/P) CN2201 5PIN VIDEO-Pr/Cr CN2201...
  • Page 32 FLOW CHART NO.7 Audio E-E does not appear normally. Check the line between audio input terminal and Are the audio signals inputted to each pin of IC2801? each pin of IC2801, and replace P1 (BOARD MCV) if defective. IC2801 4,11PIN AUDIO-IN1 (REAR) →...
  • Page 33 Replace P2 (DVD MECHANISM & DVD MAIN Do Pin(18) of CN2201 become "H" level? BOARD ASSEMBLY). Are the audio signals outputted to each pin of IC2804? IC2804 1PIN AUDIO (L)-OUT Replace P1 (BOARD MCV). IC2804 7PIN AUDIO (R)-OUT Are the audio signals outputted to the specific Check the line between Pin(1,7) of IC2804 output terminal? and the audio terminal (JK2805), and replace...
  • Page 34 FLOW CHART NO.8 Audio is not outputted during playback. Set the disc on the disc tray, and playback. Are the audio signals outputted to each pin of CN2201? Replace P2 (DVD MECHANISM & DVD MAIN BOARD ASSEMBLY). CN2201 17PIN AUDIO (L)-OUT CN2201 15PIN AUDIO (R)-OUT Are the audio signals inputted to each pin of Check each line between each pin of CN2201...
  • Page 35 3 VCR Section FLOW CHART NO.1 The key operation is not functioning. Are the contact point and the installation state of Re-install some key switches correctly or the key switches normal? replace replace P1 (BOARD MCV) if defective. Check the key switches and their periphery, and Is the control voltage normally inputted into replace P1 (BOARD MCV) if defective.
  • Page 36 FLOW CHART NO.3 Cassette tape can not be loaded. When loading a cassette tape, on Pin(88) of Check the line between the start sensor and IC1501, does the "L" pulse switch to the "H" pulse? Pin(88) of IC1501, and replace P1 (BOARD MCV) if defective.
  • Page 37 FLOW CHART NO.6 Capstan Motor does not rotate. Check the P-ON+5V(1) line and replace P1 (BOARD Is 5V voltage supplied to Pin(2) of CN1502? MCV) or P3 (BOARD POWER SUPPLY) if defective. Is over approximately 2.6V voltage supplied to Check the line between Pin(5) of CN1502 and Pin(5) of CN1502? Pin(33) of IC1501, and replace P1 (BOARD MCV) if defective.
  • Page 38 FLOW CHART NO.10 Video E-E does not appear. Are the video signals inputted to each pin of Check the line between video input terminal and IC2805? each pin of IC2805 ,and replace P1 (BOARD MCV) if defective. IC2805 8PIN VIDEO-IN 1 (REAR) IC2805 13PIN Y-IN (REAR)
  • Page 39 FLOW CHART NO.11 Hi-Fi E-E audio does not operate normally. Check the line between audio input terminal and Are the audio signals inputted to each pin of IC2801? each pin of IC2801, and replace P1 (BOARD MCV) if defective. IC2801 4,11PIN AUDIO-IN1 (REAR) →...
  • Page 40 Is the 5V voltage supplied to Pin(5, 15, 32, 36, 46) of Check the circuit of AL+5V, P-ON+5V(2) and IC1451, or the 9V voltage supplied to Pin(3) of IC1451? P-ON+9V, and replace P1 (BOARD MCV) or P3 (BOARD POWER SUPPLY) if defective. Is the serial data and the clock signal supplied to Check the line between Pin(37, 38) of IC1451 and Pin(37, 38) of IC1451?
  • Page 41 FLOW CHART NO.12 Hi-Fi audio can not be recorded normally. (E-E mode is normal.) Is the REC FM signal outputted to Pin(26) of IC1451? Replace P1 (BOARD MCV). Is the line between Pin(8) of CN1253 and Replace P1 (BOARD MCV). Pin(26) of IC1451 normal? Replace 1B1 (DECK ASSEMBLY).

  • Page 42: Function Indicator Symbols

    FUNCTION INDICATOR SYMBOLS < VCR Section > Note: If a mechanical malfunction occurs, the power is turned off. When the power comes on again after that by pressing [ ] button, an error message is displayed on the TV screen for 5 seconds. MODE INDICATOR ACTIVE When reel or capstan mechanism is not...
  • Page 43 < 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 Priority An error occurs during data reading.
  • Page 44 Error Message Solution Error Description Priority Release the disc protect This disc is protected and not setting in the Disc Setting Disc Protected Disc. recordable. menu. Disc is full. Insert the recordable disc with No available recording space. (No area for new recording) enough recording space.

  • Page 45: Block Diagrams

    BLOCK DIAGRAMS System Control Block Diagram NOTE: BOARD MEANS PRINTED CIRCUIT BOARD. IC1501 BOARD MAIN (SYSTEM CONTROL) IC1571 (VFD DRIVER) FL1501 DISPLAY-CLK DISPLAY-DATA GRID DISPLAY-ENA REMOTE D1563 VCR-LED AL+5V IIC-BUS SCL VCR-LED REMOTE IIC-BUS SCL D1562 SENSOR IIC-BUS SDA DVD-LED IIC-BUS SDA TO Hi-Fi AUDIO RS1501...
  • Page 46 Servo Block Diagram NOTE: BOARD MEANS PRINTED CIRCUIT BOARD. IC1501 BOARD MAIN (SERVO CONTROL) AL+5V (DECK ASSEMBLY) D1555 S-LED TP513 AC HEAD ASSEMBLY CN1504 CTL(+) CL504 CONTROL 5 CTL(+) HEAD 6 CTL(-) CTL(-) AL+5V(1) SW1512 MODE-SW LD-SW TP506 TP505 TP507 ST-S T-REEL END-S...
  • Page 47 Digital Signal Process Block Diagram NOTE: BOARD MEANS PRINTED CIRCUIT BOARD. REC VIDEO SIGNAL PB VIDEO SIGNAL REC AUDIO SIGNAL PB AUDIO SIGNAL DVD MECHANISM IC101 (MAIN MICRO CONTROLLER/MPEG2 AV CODEC) IC201 (RF/ERROR AMP/LPC) VIDEO-Y(I/P) VIDEO-C VIDEO-Pb/Cb VIDEO ERROR AMP VIDEO-Pr/Cr ENCODER VIDEO...
  • Page 48 Video Block Diagram NOTE: BOARD MEANS PRINTED CIRCUIT BOARD. REC VIDEO SIGNAL PB VIDEO SIGNAL IC1501 (OSD) (VCR DVD DUBBING) BOARD MAIN TO VIDEO INPUT VCR-VIDEO(DUB) OSD CHARACTER SELECT BLOCK DIAGRAM TO VIDEO OUTPUT PB/EE-VIDEO SELECT BLOCK DIAGRAM IC1301 (VIDEO SIGNAL PROCESS/ HEAD AMP) Q1301 CCD 1H BUFFER...
  • Page 49 Video Input Select Block Diagram NOTE: BOARD MEANS PRINTED CIRCUIT BOARD. REC VIDEO SIGNAL TU5001 (TUNER UNIT) CN2610 CN5007 ATU-VIDEO ATU-VIDEO VIDEO OUT BOARD TUNER (VCR DVD DUBBING) VCR-VIDEO(DUB) TO VIDEO BLOCK DIAGRAM IC2805 (INPUT SELECT) TUNER CN701 CN2201 TO DIGITAL Q2305 VIDEO-Y/CVBS JK2401...
  • Page 50 Video Output Select Block Diagram NOTE: BOARD MEANS PRINTED CIRCUIT BOARD. REC VIDEO SIGNAL PB VIDEO SIGNAL DVD MAIN BOARD BOARD MAIN IC2404 (VIDEO DRIVER) DRIVER JK2402(REAR) S-VIDEO -6dB DRIVER DRIVER IC2405 (VIDEO DRIVER) JK2403(REAR) DRIVER VIDEO-Y CN701 CN2201 VIDEO-Y(I) VIDEO-Y(I)-OUT VIDEO-Y(I/P) VIDEO-Y(I/P)-OUT...
  • Page 51 Audio Block Diagram NOTE: BOARD MEANS PRINTED CIRCUIT BOARD. PB-AUDIO SIGNAL REC-AUDIO SIGNAL BOARD MAIN N-A-IN TO Hi-Fi AUDIO BLOCK DIAGRAM N-A-OUT IC1301 (AUDIO SIGNAL PROCESS) LINE MUTE SP/LP-ON (DECK ASSEMBLY) AC HEAD ASSEMBLY CN1504 AUDIO 4 AUDIO-PB/REC Q1422 HEAD 3 A-COM BIAS AUDIO...
  • Page 52 Audio Input/Output Select Block Diagram NOTE: BOARD MEANS PRINTED CIRCUIT BOARD. REC AUDIO SIGNAL PB AUDIO SIGNAL TP754 IC2406 A-OUT-L (OUTPUT SELECT) JK2751 (REAR) AUDIO(L) -OUT2 JK2202 (REAR) CN101 CN2204 Q2351 AUDIO(R) SPDIF SPDIF DIGITAL -OUT2 SW CTL AUDIO OUT (COAXIAL) WF10 9 10 11...
  • Page 53 Hi-Fi Audio Block Diagram NOTE: BOARD MEANS PRINTED CIRCUIT BOARD. PB AUDIO SIGNAL REC AUDIO SIGNAL DVD AUDIO SIGNAL Mode : SP/REC   BOARD MAIN IC1451 (MTS/ SAP/ Hi-Fi AUDIO PROCESS/ Hi-Fi HEAD AMP) SERIAL IIC-BUS SDA TO SYSTEM DATA CONTROL BLOCK IIC-BUS SCL DIAGRAM...
  • Page 54 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 55: 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 56 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. ATTENTION: POUR UNE PROTECTION CONTINUE LES RISQES D'INCELE N'UTILISER QUE DES FUSIBLE DE MÊME TYPE. RISK OF FIRE-REPLACE FUSE AS MARKED.
  • Page 57 MAIN 1/7 Schematic Diagram < VCR Section > NOTE: BOARD MEANS PRINTED CIRCUIT BOARD. 1-13-3 E9KG0SCM1...
  • Page 58 MAIN 2/7, POWER SWITCH, DVD OPEN/CLOSE SWITCH & SENSOR Schematic Diagram < VCR Section > FL1501 MATRIX CHART NOTE: BOARD MEANS PRINTED CIRCUIT BOARD. BS CS DR DTV BS CS 1-13-4 E9KG0SCM2...
  • Page 59 MAIN 3/7 Schematic Diagram < VCR Section > NOTE: BOARD MEANS PRINTED CIRCUIT BOARD. 1-13-5 E9KG0SCM3...
  • Page 60 MAIN 4/7 Schematic Diagram < VCR Section > NOTE: BOARD MEANS PRINTED CIRCUIT BOARD. 1-13-6 E9KG0SCM4...
  • Page 61 MAIN 5/7 Schematic Diagram < VCR Section > NOTE: BOARD MEANS PRINTED CIRCUIT BOARD. 1-13-7 E9KG0SCM5...
  • Page 62 MAIN 6/7 Schematic Diagram < VCR Section > NOTE: BOARD MEANS PRINTED CIRCUIT BOARD. 1-13-8 E9KG0SCM6...
  • Page 63 MAIN 7/7 Schematic Diagram < VCR Section > NOTE: BOARD MEANS PRINTED CIRCUIT BOARD. 1-13-9 E9KG0SCM7...
  • Page 64 POWER SUPPLY Schematic Diagram < VCR Section > NOTE: BOARD MEANS PRINTED CIRCUIT BOARD. NOTE: CAUTION ! CAUTION ! The voltage for parts in hot circuit is measured using Fixed voltage (or Auto voltage selectable) power supply circuit is used in this unit. For continued protection against fire hazard, hot GND as a common terminal.
  • Page 65 FRONT JACK Schematic Diagram < VCR Section > NOTE: BOARD MEANS PRINTED CIRCUIT BOARD. E9KG0SCFJ 1-13-11...
  • Page 66 TUNER Schematic Diagram NOTE: BOARD MEANS PRINTED CIRCUIT BOARD. 1-13-12 E9KG0SCT...
  • Page 67 DVD MAIN 1/6 Schematic Diagram < DVD Section > 1 NOTE: NOTE: BOARD MEANS PRINTED CIRCUIT BOARD. The order of pins shown in this diagram is different from that of actual IC101. IC101 is divided into five and shown as IC101 (1/5) ~ IC101 (5/5) in this DVD Main Schematic Diagram Section. 1-13-13 E9KG0SCD1...
  • Page 68 DVD MAIN 2/6 Schematic Diagram < DVD 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 five and shown as IC101 (1/5) ~ IC101 (5/5) in this DVD Main Schematic Diagram Section. 1-13-14 E9KG0SCD2...
  • Page 69 DVD MAIN 3/6 Schematic Diagram < DVD 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 five and shown as IC101 (1/5) ~ IC101 (5/5) in this DVD Main Schematic Diagram Section. 1-13-15 E9KG0SCD3...
  • Page 70 DVD MAIN 4/6 Schematic Diagram < DVD 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 five and shown as IC101 (1/5) ~ IC101 (5/5) in this DVD Main Schematic Diagram Section. 1-13-16 E9KG0SCD4...
  • Page 71 DVD MAIN 5/6 Schematic Diagram < DVD 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 five and shown as IC101 (1/5) ~ IC101 (5/5) in this DVD Main Schematic Diagram Section. 1-13-17 E9KG0SCD5...
  • Page 72 DVD MAIN 6/6 Schematic Diagram < DVD Section > NOTE: BOARD MEANS PRINTED CIRCUIT BOARD. 1-13-18 E9KG0SCD6...
  • Page 73 BOARD MAIN Top View BOARD SENSOR Top View NOTE: BOARD MEANS PRINTED CIRCUIT BOARD. BHF300F01012A BHF300F01012B TP751 V-OUT TP302 RF-SW TP513 TP301 C-PB VR1501 SW-POINT TP502 S-INH BE9MG0F01011A 1-13-19...
  • Page 74 BOARD MAIN Bottom View NOTE: BOARD MEANS PRINTED CIRCUIT BOARD. PIN 17 OF PIN 7 OF PIN 5 OF PIN 3 OF PIN 9 OF PIN 2 OF CN2201 CN2201 CN2201 CN2201 CN2201 IC2406 WF10 PIN 3 OF CN2204 1-13-20 BE9MG0F01011A...
  • Page 75 BOARD POWER SUPPLY Top 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. Fixed voltage (or Auto voltage selectable) power supply circuit is used in this unit. For continued protection against fire hazard, Also, in order to have the ability to increase the input If Main Fuse (F1001) is blown , check to see that all components in the power supply...
  • Page 76 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. Fixed voltage (or Auto voltage selectable) power supply circuit is used in this unit. For continued protection against fire hazard, If Main Fuse (F1001) is blown , check to see that all components in the power supply Also, in order to have the ability to increase the input...
  • Page 77 BOARD TUNER Top View NOTE: BOARD MEANS PRINTED CIRCUIT BOARD. 1-13-23 BE9MG0F01031A...
  • Page 78 BOARD TUNER CBA Bottom View NOTE: BOARD MEANS PRINTED CIRCUIT BOARD. 1-13-24 BE9MG0F01031A...
  • Page 79 NOTE: BOARD MEANS PRINTED CIRCUIT BOARD. BOARD POWER SWITCH BOARD POWER SWITCH BOARD FRONT JACK BOARD FRONT JACK Top View Bottom View Top View Bottom View BE9MG0F01011B BE9MG0F01031-A BOARD DVD OPEN/ BOARD DVD OPEN/ CLOSE SWITCH CLOSE SWITCH Top View Bottom View BE9MG0F01011C 1-13-25...

  • Page 80: Waveforms

    WAVEFORMS NOTE: Input: COLOR BAR SIGNAL (WITH 1KHz AUDIO SIGNAL) TP751 Pin 9 of CN2201 Pin 17 of CN2201 V-OUT E-E 0.2V 20µs VIDEO-C 0.2V 20µs AUDIO(L)-OUT 0.5ms TP751 UPPER Pin 3 of CN2204 Pin 2 of IC2406 TP302 WF10 LOWER V-OUT 0.5V...

  • Page 81: Wiring Diagram

    WIRING DIAGRAM Wiring 1/2 Diagram NOTE: BOARD MEANS PRINTED CIRCUIT BOARD. REAR CN2204 VIDEO- VIDEO- DIGITAL S-VIDEO VIDEO AUDIO(L) AUDIO(R) AUDIO(L) AUDIO(R) VIDEO-Y S-VIDEO VIDEO AUDIO(R) AUDIO(L) Pb/Cb Pr/Cr AUDIO OUT -IN1 -IN1 -IN1 -OUT2 -OUT2 -OUT1 -OUT1 (COAXIAL) EV+10.5V EV+10.5V BOARD SENSOR EV+10.5V...
  • Page 82 Wiring 2/2 Diagram NOTE: BOARD MEANS PRINTED CIRCUIT BOARD. DVD MECHANISM & DVD MAIN BOARD ASSEMBLY DVD MECHANISM CN101 GND 30 CN1001 CN301 GND 29 2 SW1 GND 28 3 SL(-) EV+10.5V 27 4 SL(+) EV+10.5V 26 5 GND EV+10.5V 25 6 T-SCN2 HDMI-CONNECTOR GND 24...

  • Page 83: Ic Pin Function Descriptions

    IC PIN FUNCTION DESCRIPTIONS < VCR Section > Signal Function Name IC1501 Not Used (SYSTEM CONTROL MICROPROCESSOR) 29 OUT D-REC Delayed Record Signal Signal Hi-Fi-H- Hi-Fi Audio Head Switching Function 30 OUT Name Pulse P-DOWN Power Voltage Down Detector VCR- VCR Audio Mute Control Signal 31 OUT...
  • Page 84 Signal Signal Function Function Name Name VIDEO- Deck Mode Position Detector 57 OUT Video Input Select Signal 3 IN LD-SW Signal VIDEO- Tape Start Position Detector 58 OUT Video Input Select Signal 2 IN ST-S Signal VIDEO- 59 OUT Video Input Select Signal 1 DVD Power Supply Safety POWER- Signal...
  • Page 85 < DVD Section > IC1571 (VFD DRIVER) Signal Function Name IN CLK Clock Input IN STB Serial Interface Strobe Not Used Not Used Ground Power Supply Segment Output Pull Down Level 16 OUT P7 Segment Output Grid Output Power Supply Ground IN OSC Oscillator Input...

  • Page 86: Lead Identifications

    LEAD IDENTIFICATIONS KRA103M-AT/P KTA-1266-GR-AT/P PQ070XFC1SZF 2SK3563(Q) KRC103M-AT/P KTC3198-GR-AT/P KTA1267-GR-AT/P KTC3203-Y-AT/P KTC3193-Y-AT/P 2SC3266-GR(TPE2 F) KTC3199-(BL,GR)-AT/P 1 2 3 4 G D S E C B E C B KIA4558F-EL/P UTC4580E RN1511(TE85R.F) AN5832SA-E1V B1 E B2 MM1697AJBE PS2561A-1(W) MM1636XWRE MM1637XVBE 1: Anode 2: Cathode 3: Emitter 4: Collector...

  • Page 87: Exploded Views

    EXPLODED VIEWS NOTE: BOARD MEANS PRINTED CIRCUIT BOARD. Cabinet See Electrical Parts List for parts with this mark. ( P2 ) DVD MECHANISM & DVD MAIN BOARD ASSEMBLY ( P1 ) BOARD MCV ( P5 ) BOARD SENSOR 2B76 2B77 TU5001 BOARD POWER SWITCH...
  • Page 88 (P1) BOARD MCV (P5) BOARD SENSOR ( P5 ) BOARD SENSOR SW1604 SW1605 SW1602 SW1603 SW1606 SW1620 SW1609 SW1608 BOARD POWER SWITCH SW1607 SW1611 ( P1 ) SW1613 BOARD MCV BOARD MAIN SW1616 BOARD DVD OPEN/CLOSE SWITCH SW1615 SW1617 (P2) DVD MECHANISM & DVD MAIN BOARD ASSEMBLY ( P2 ) DVD MECHANISM &...
  • Page 89 (P3) BOARD POWER SUPPLY ( P3 ) BOARD POWER SUPPLY F1001 AC1001 (P4) TUNER ASSEMBLY TU5001 BOARD TUNER W501 ( P4 ) TUNER ASSEMBLY W003 BOARD FRONT JACK 1-18-3 E9KG0CEX...
  • Page 90 Packing Lower Side Upper Side X22B X22A X20B X20A 1-18-4 E9KG0PEX...

  • Page 91: 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 92: Electrical Parts List

    ELECTRICAL PARTS LIST BOARD DVD OPEN/CLOSE SWITCH PRODUCT SAFETY NOTE: Products marked with a ! have special characteristics important to safety. (MCV-C) Before replacing any of these components, read Location carefully the product safety notice in this service TSB P/N Reference No.
  • Page 93 DECK MECHANISM SECTION DVD VIDEO RECORDER & VIDEO CASSETTE RECORDER D-VR7KC Deck Mechanism Section I Standard Maintenance I Mechanism Alignment Procedures I Disassembly / Assembly of Mechanism I Deck Exploded Views I Deck Parts List TABLE OF CONTENTS Standard Maintenance ..............2-1-1 Service Fixture and Tools.

  • Page 94: 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. Deck Periodic Service Schedule Ref.No.
  • Page 95 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 96: 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 FL8A Head Adjustment of ACE Head FL8N (2 Head only) Azimuth and X Value Adjustment of ACE Head / J-1-2 Alignment Tape FL8NW Adjustment of Envelope Waveform (4 Head only) Guide Roller Adj.

  • Page 97: 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 loaded position without a cassette tape below on this page if a tape gets stuck, for example, in 1.
  • Page 98 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 (FL8NW) Guide Roller Adj.
  • Page 99 1-A. Preliminary/Final Checking and 4. If creasing or snaking is apparent, adjust the Tilt Adj. Screw of the ACE Head. (Fig. M6) Alignment of Tape Path 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 100 5. To shift the CTL waveform, press [TRACKING 5. When Guide Rollers [2] and [3] (Refer to Fig. M3) or [TRACKING ] buttons on the unit. Then are aligned properly, there is no envelope drop make sure that the maximum output position of either at the beginning or end of track as shown in ±...
  • Page 101 1-D. Azimuth Alignment of Audio/Control/ Erase Head Correct Incorrect Purpose: To correct the Azimuth alignment so that the Audio/Control/Erase Head meets tape tracks Post [5] properly. Tape Symptom of Misalignment: If the position of the Audio/Control/Erase Head is not properly aligned, the Audio S/N Ratio or Frequency Response will be poor.

  • Page 102: 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 of Main Section.) All the following procedures, including those for adjustment and replacement of parts, should be done in Eject mode;...
  • Page 103 Removal Installation Step Starting Remove/*Unhook/ /Loc. Part Adjustment Fig. No. Unlock/Release/ Condition Unplug/Desolder [31] [25] BT Arm DM2, DM14 *(P-6) (+)Refer to Alignment [32] [25] Loading Arm (SP) Assembly B DM2, DM14 Sec.Page 2-5-1 (+)Refer to Alignment [33] [32] Loading Arm (TU) Assembly B DM2, DM14 Sec.Page 2-5-1 [34]...
  • Page 104 Top View [41] [42] [43] [46] [14] [13] [11] [15] [36] [10] [12] [35] [34] [40] [29] [30] [16] [39] [38] Fig. DM1 Bottom View [20] [33] [32] [24] [26] [27] [25] [23] [28] [25a] [22] [21] [31] Fig. DM2 2-4-3 MK14NDA_T...
  • Page 105 (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 106 [11] (S-4A) (L-4) [46] (P-3) [13] [47] Removal of [11] [12] (L-14) 1) Remove screw (S-4A). 2) Unhook spring (P-2). [10] Release (L-4) while (P-2) holding [12] with a finger. Loosen a finger holding [12] and remove [11]. (S-2) Pin of [12] Pin of [10] Groove of [28] When reassembling [10] and...
  • Page 107 Installation of [13] and [12] (S-5) [14] (S-6) [16] [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 108 (S-8) [22] (C-2) (C-1) [23] (L-6) [21] (P-5) [20] Cap Belt (P-5) [28] Installation position of Cap Belt [21] Cap Belt When installing [23], install the spring (P-5) to [28] as shown in the left figure, and then install [23] while Pin on pressing the spring (P-5) in bottom...
  • Page 109 Installation of [25] (S-8a) [25a] Position of Mode Lever when installed Pin of [35] Pin of [31] Pin of [34] [25] (C-4) (S-9) Bottom View [25] (L-10) (L-8) (C-3) [27] [28] [28] [24] [26] Align [25] and [28] as shown. (L-9) First groove on [28] First tooth on [44]...
  • Page 110 [36] Break belt (P-7) [34] [40] (P-8) turn [37] (L-12) turn [38] turn [44] [45] Slide [39] [35] Fig. DM17 Fig. DM15 [42] [41] [43] (L-13) Slide Plate (S-11) Fig. DM16 2-4-9 MK14NDA_T...

  • Page 111: 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 Loading Arm (SP) and (TU) Assembly loading/unloading mechanism. Since information about the state of the mechanism is provided to the Install Loading Arm (SP) and (TU) Assembly so System Control Circuit only through the Mode Switch, that their triangle marks point to each other as...

  • Page 112: 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 L1191 B553 B411 B567 L1053 B410 L1051 Chassis Assembly Top View (Lubricating Point) L1322 B501 B560 L1450 L1450 B426 L1466 B121 B126...
  • Page 113 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) B520 B590 B522 L1406 B148 B499 B508 B573 B592 B574 B558 B564 B557 B414 B565 B525 L1151 B417...
  • Page 114 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 MK14NDEX_T...

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