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Toshiba D-VR41KF Service Manual

Dvd video recorder/video cassette recorder
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FILE NO. 810-200690GR
REVISED: 01
SERVICE MANUAL
PAL
SECAM
DVD Video Recorder

/Video Cassette Recorder

D-VR41KF
PROGRAM
REC
DUBBING
VCR / DVD
REC
VCR
DVD
VCR
DVD
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, July, 2007 GREEN
TOSHIBA CORPORATION 2007

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Summary of Contents for Toshiba D-VR41KF

  • Page 1: Video Cassette Recorder

    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, July, 2007 GREEN TOSHIBA CORPORATION 2007...
  • 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-VR41KF Main Section I Specifications I Preparation for Servicing I Adjustment Procedures I Schematic Diagrams I CBA’s I Exploded Views I Parts List TABLE OF CONTENTS Specifications ................1-1-1 Laser Beam Safety Precautions.

  • Page 4: Specifications

    SPECIFICATIONS General Input/Output System Front Panel : (AV3) DVD-Video, DVD-R/RW, CD-DA, CD-R/RW, Video input VCD, Video Cassette Tape One RCA connector Input level : 1Vp-p (75 Ω) VCR Video Heads Four heads S-Video input Power requirements One Mini DIN 4-pin jack Y (Iuminance) 1Vp-p (75 Ω) 220–240V ±...

  • 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. Crimp type wire connector The power transformer uses crimp type connectors Some electrical and mechanical parts have special which connect the power cord and the primary side safety-related characteristics which are often not evi- of the transformer.
  • Page 7 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: 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 PLAY 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 Reference Notes CAUTION 1: Locking Tabs (L-1) and (L-2) are fragile. [5] Jack Bracket Be careful not to break them. (S-4) 1-1. Release five Locking Tabs (L-1). 1-2. Release three Locking Tabs (L-2) 1-3. Disconnect Connector (CN1505), and remove the Front Assembly. 2.
  • Page 15 (S-13) (S-13) (S-7) (S-8A) (S-14B) (S-6A) (S-14B) (S-6B) [9] Panel (S-13) Rear Unit (S-14B) (S-7) (S-15) (S-8B) (S-14A) (S-7) (S-14A) (S-16) (S-12) [15] VCR Chassis Unit CN1503 CN1504 [14] Bracket R Fig. D5 Fig. D7 [13] Panel Rear (S-11) (S-10) (S-11) [11] Motor DC Fan [10] BOARD...
  • Page 16 [16] Deck Cylinder Assembly Assembly FE Head ACE Head Assembly SW507 LD-SW Plate Earth [19] BOARD Rear Jack [17] BOARD [20] BOARD Power Switch Main (with [20] BOARD Main BOARD AFV) [16] Deck Assembly Cam Gear Desolder (S-17) from bottom Hole Shaft (S-18)
  • Page 17 (S-19) (S-19) [21] Deck Pedestal [22] Front Bracket R (S-20) Fig. D9 3. How to Eject Manually Note: When rotating the gear, be careful not to damage the gear. 1. Remove the Cover Top. 2. Rotate the gear in the direction of the arrow manually as shown below 3.

  • Page 18: 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 19: 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 20: 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 21: 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 22 FLOW CHART NO.6 P-ON+44V is not outputted. Check D013, C013, and their periphery, and Is 44V voltage supplied to the emitter of Q1516? service it if defective. Is the "L" pulse (approximately 0V) inputted to Is the "H" pulse (approximately 5V) inputted to the base of Q1516? the base of Q1517? Replace Q1516.
  • Page 23 FLOW CHART NO.11 DVD-P-ON+3.3V is not outputted. Is 5V voltage supplied to Pin(1) of IC1505? Check D016, D1032, L013, C017, C018 and their periphery, and service it if defective. Replace IC1505. FLOW CHART NO.12 DVD-P-ON+12V is not outputted. Is 12V voltage supplied to the emitter of Q1511? Check D1031, L1013, C1037, C1039 and their periphery, and service it if defective.
  • Page 24 2 DVD Section FLOW CHART NO.1 The key operation is not functioning. Re-install the key switches correctly or replace Are the contact point and the installation state of the key switches normal? the poor switch. Is the control voltage normally inputted into Pin(8) Check the key switches and their periphery, and of IC501? service it if defective.
  • Page 25 FLOW CHART NO.4 VIDEO E-E does not appear normally. Are the video signals inputted to each pin of Check the line between video input terminal and IC1518? each pin of IC1518. IC1518 1PIN VIDEO-IN (AV1) 1PIN → JK1502 VIDEO-IN (AV1) IC1581 IC1518 3PIN...
  • Page 26 FLOW CHART NO.5 Picture does not appear normally. [In the S-VIDEO/Composite video output (JK1502, JK1506, JK2001)] Set the disc on the disc tray and playback. "A" Replace DVD MECHANISM & DVD MAIN BOARD Are the video signals inputted to each pin of CN1502? No ASSEMBLY.
  • Page 27 FLOW CHART NO.6 Picture does not appear normally. [In the RGB/Component video output (JK1501, JK1502)] Set the disc on the disc tray and playback. "B" Are the video signals outputted to each pin of Replace DVD MECHANISM & DVD MAIN BOARD CN1502? ASSEMBLY.
  • Page 28 "C1" Check the line between each pin of IC1516 and Are the video signals inputted to each pin of IC1516 each pin of IC1510, and service it if defective. and each pin of IC1514? IC1516 3PIN → IC1510 13PIN VIDEO-Y(I/P)-OUT (Output to JK1501) IC1516 8PIN →...
  • Page 29 FLOW CHART NO.7 Audio E-E does not appear normally. Check the line between audio input terminal and No (Rear each pin of IC1518, and service it if defective. or Front input) Are the audio signals inputted to each pin of →JK1502 IC1518 10,16PIN...
  • Page 30 "C" Check each line between each pin of CN1502 Are the analog audio signals inputted to each pin of IC1513? and each pin of IC1513, and service it if defective. CN1502 14PIN → IC1513 2PIN AUDIO(L)-OUT IC1513 2PIN AUDIO (L)-OUT CN1502 16PIN →...
  • Page 31 FLOW CHART NO.8 Audio is not outputted during playback. Set the disc on the disc tray, and playback. Replace the DVD MECHANISM & DVD MAIN Are the analog audio signals outputted to each pin BOARD ASSEMBLY. of CN1502? CN1502 14PIN AUDIO (L)-OUT CN1502 16PIN AUDIO (R)-OUT Check each line between each pin of CN1502 Are the analog audio signals inputted to each pin...
  • Page 32 "D" Are the analog audio signals outputted to each pin of IC1518? Is 12V voltage supplied to Pin(2,4) of IC1518? IC1518 21,25PIN AUDIO-OUT 1 (AV1) IC1518 22,26PIN AUDIO-OUT 2 (AV2) Check the AL+12V line and Replace IC1518. service it if defective. Are the audio signals outputted to the specific Check the periphery between Pin(21,25) of IC1518 output terminal?
  • Page 33 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 some key switches. Check the key switches and their periphery, and Is the control voltage normally inputted into service it if defective.
  • Page 34 FLOW CHART NO.3 Cassette tape can not be loaded. When loading a cassette tape, on Pin(10) of Check the line between the start sensor and IC501, does the "L" pulse switch to the "H" pulse? Pin(10) of IC501, and service it if defective. When loading a cassette tape, is the specified Replace the Capstan Motor Unit.
  • Page 35 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 service it if defective. Is over approximately 2.6V voltage supplied to Check the line between Pin(5) of CN502 and Pin(5) of CN502? Pin(76) of IC501, and service it if defective.
  • Page 36 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 IC1518? each pin of IC1518. IC1518 1PIN VIDEO-IN (AV1) 1PIN → JK1502 VIDEO-IN (AV1) IC1581 3PIN →...
  • Page 37 "E" Are the video signals outputted to each pin of IC1518? Is 12V voltage supplied to Pin(2,4) of IC1518? IC1518 29PIN VIDEO-OUT 1 (AV1) IC1518 30PIN VIDEO-OUT 2 (AV2) Check the AL+12V(1) line Replace IC1518. and service it if defective. Are the video signals outputted to the specific output terminal? Check the periphery of JK1502 from Pin(29) of...
  • Page 38 "F" Check the line between Pin(3,13) of IC1501 and Is the audio signal supplied to Pin(4,50) of IC451? Pin(4,50) of IC451, and service it if defective. Is the 5V voltage supplied to Pin(16,32,35,36,46,55) of Check the circuit of AL+5V, P-ON+5V and IC451, or the 9V voltage supplied to Pin(69) of IC451? P-ON+9V, and service it if defective.
  • Page 39 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 IC451? Replace IC451. Is the line between Pin(8) of CN251 and Check the line between Pin(8) of CN251 and Pin(26) of IC451, and service it if defective.
  • Page 40 FLOW CHART NO.15 Hi-Fi audio can not be playbacked normally in the linear audio mode. (E-E mode is normal.) Is the audio signal outputted to Pin(11) of IC301? Is the audio signal supplied to Pin(5) of IC301? Replace Check the line between Pin(11) of IC301 and Pin(80) of IC451, and IC301.

  • Page 41: 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 [STANDBY-ON] button, an error message is displayed on the TV screen for 5 seconds. MODE INDICATOR ACTIVE When reel or capstan mechanism is not...
  • Page 42 < 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 43 (error number: 1 to 39) is displayed on the recording menu after timer recording. (Once the screen of the program line is exited, the program line for the error will be cleared.) (No Error Message is displayed for the error No. 40 ~ 42.) Example : D-VR41KF Timer Programming VCR DVD...

  • Page 44: Block Diagrams

    BLOCK DIAGRAMS Servo/System Control Block Diagram NOTE: BOARD MEANS PRINTED CIRCUIT BOARD. (DECK ASSEMBLY) IC501 SW507 BOARD MAIN (SERVO/SYSTEM CONTROL) SW681 OPEN/CLOSE ACE HEAD ASSEMBLY CN510 CN681 LD-SW CN504 AL+5V LD-SW OPEN/CLOSE-SW CONTROL CTL(+) CTL(+) DUBBING-SW TP501 HEAD CTL(-) DUBBING CTL(-) SW682 KEY- 2 8...
  • Page 45 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 IC201 IC101 ERROR AMP CN701 CN201 VIDEO VIDEO-Y(I/P)-OUT 24 TO VIDEO ENCODER VIDEO VIDEO-Y(I)-OUT 30 OUTPUT SELECT VIDEO-C-OUT 22...

  • Page 46: Video Block Diagram

    Video Block Diagram NOTE: BOARD MEANS PRINTED CIRCUIT BOARD. REC-VIDEO SIGNAL PB-VIDEO SIGNAL MODE: SP/REC IC501 (OSD) IIC-BUS SCL TO SERVO/SYSTEM CHARACTER CONTROL BLOCK IIC-BUS SDA DIAGRAM COLOR Q301 IC301 VIDEO SIGNAL PROCESS /HEAD AMP (DECK ASSEMBLY) (DVD VCR DUBBING) SERIAL DECORDER Y.
  • Page 47 Video Input Select Block Diagram NOTE: BOARD MEANS PRINTED CIRCUIT BOARD. REC VIDEO SIGNAL PB VIDEO SIGNAL TU1501 (TUNER UNIT) IC1518 (VIDEO INPUT SELECT) BOARD REAR JACK VIDEO OUT BUFFER JK1502 VIDEO-OUT2 VIDEO IN 20 DRIVER JK2001 CL2001 CN1507 TO VIDEO VIDEO-IN2 VIDEO-IN2 VIDEO-OUT1...
  • Page 48 Video Output Select Block Diagram NOTE: BOARD MEANS PRINTED CIRCUIT BOARD. REC VIDEO SIGNAL PB VIDEO SIGNAL IC1515 (VIDEO DRIVER) DRIVER JK1506 S-VIDEO IC1510 (SW) -6dB DRIVER DRIVER (DVD VCR DUBBING) TO VIDEO DVD-VIDEO(DUB) BLOCK DIAGRAM CONTROL IC1516 (VIDEO DRIVER) CN1502 9 10 11 JK1501...

  • Page 49: Audio Block Diagram

    Audio Block Diagram NOTE: BOARD MEANS PRINTED CIRCUIT BOARD. PB-AUDIO SIGNAL REC-AUDIO SIGNAL Mode : SP/REC BOARD MAIN N-A-PB TO Hi-Fi AUDIO N-A-REC BLOCK DIGRAM IC301 (AUDIO SIGNAL PROCESS) TUNER PB-ON LINE MUTE (DECK ASSEMBLY) SP/LP-ON ACE HEAD ASSEMBLY REC-ON Q404 CN504 AUDIO...
  • Page 50 Audio Input/Output Select Block Diagram NOTE: BOARD MEANS PRINTED CIRCUIT BOARD. REC AUDIO SIGNAL PB AUDIO SIGNAL BOARD REAR JACK JK2001 CN1507 CN2001 IC1518 (INPUT/OUTPUT SELECT) JK2-AUDIO(L)-IN AUDIO(L)-IN2 JK2-AUDIO(R)-IN AUDIO(R)-IN2 JK2-AUDIO(L)-OUT AUDIO(L)-OUT2 BUFFER JK2-AUDIO(R)-OUT AUDIO(R)-OUT2 JK2-AUDIO-MUTE MUTE-ON MUTE-ON Q2003, Q2002, Q2005 Q2004 JK1502...
  • Page 51 Hi-Fi Audio Block Diagram NOTE: BOARD MEANS PRINTED CIRCUIT BOARD. PB-AUDIO SIGNAL REC-AUDIO SIGNAL Mode : SP/REC BOARD MAIN PB/EE-AUDIO(L) TO AUDIO INPUT/OUTPUT PB/EE-AUDIO(R) SELECT BLOCK DIAGRAM IC451 ( Hi-Fi AUDIO PROCESS) R-CH IIC-BUS SDA SERIAL COMP NOISE DATA IIC-BUS SCL DECODER R-CH (DVD...
  • Page 52 Power Supply Block Diagram 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 53: 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 54 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 55 Main 1/10 Schematic Diagram < VCR Section > NOTE: BOARD MEANS PRINTED CIRCUIT BOARD. 1-13-3 E9BA4SCM1...
  • Page 56 Main 2/10, Power Switch, Function & Sensor Schematic Diagram < VCR Section > FL601 MATRIX CHART NOTE: BOARD MEANS PRINTED CIRCUIT BOARD. P.SCAN REPEAT VCD VCR VCD VCR XP SP LP EP REPEAT P.SCAN 1-13-4 E9BA4SCM2...
  • Page 57 Main 3/10 Schematic Diagram < VCR Section > NOTE: BOARD MEANS PRINTED CIRCUIT BOARD. 1-13-5 E9BA4SCM3...
  • Page 58 Main 4/10 Schematic Diagram < VCR Section > NOTE: BOARD MEANS PRINTED CIRCUIT BOARD. 1-13-6 E9BA4SCM4...
  • Page 59 Main 5/10 Schematic Diagram < VCR Section > NOTE: BOARD MEANS PRINTED CIRCUIT BOARD. 1-13-7 E9BA4SCM5...
  • Page 60 Main 6/10 & Front Jack Schematic Diagram < VCR Section > NOTE: BOARD MEANS PRINTED CIRCUIT BOARD. 1-13-8 E9BA4SCM6...
  • Page 61 Main 7/10 Schematic Diagram < VCR Section > NOTE: BOARD MEANS PRINTED CIRCUIT BOARD. 1-13-9 E9BA4SCM7...
  • Page 62 Main 8/10 Schematic Diagram < VCR Section > NOTE: BOARD MEANS PRINTED CIRCUIT BOARD. 1-13-10 E9BA4SCM8...
  • Page 63 Main 9/10 Schematic Diagram < VCR Section > NOTE: BOARD MEANS PRINTED CIRCUIT BOARD. 1-13-11 E9BA4SCM9...
  • Page 64 Main 10/10 Schematic Diagram < VCR Section > NOTE: BOARD MEANS PRINTED CIRCUIT BOARD. 1-13-12 E9BA2SCM10...
  • Page 65 Power Supply & Junction 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 66 Rear Jack Schematic Diagram < VCR Section > NOTE: BOARD MEANS PRINTED CIRCUIT BOARD. 1-13-14 E9BA4SCRJ...
  • Page 67 AFV Schematic Diagram < VCR Section > NOTE: BOARD MEANS PRINTED CIRCUIT BOARD. 1-13-15 E9BA4SCAFV...
  • Page 68 DVD Main 1/5 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 E9BA4SCD1...
  • Page 69 DVD Main 2/5 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 E9BA4SCD2...
  • Page 70 DVD Main 3/5 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. 1-13-18 E9BA4SCD3...
  • Page 71 DVD Main 4/5 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. 1-13-19 E9BA4SCD4...
  • Page 72 DVD Main 5/5 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. 1-13-20 E9BA4SCD5...
  • Page 73 BOARD MAIN Top View BOARD SENSOR Top View NOTE: BOARD MEANS PRINTED CIRCUIT BOARD. TO BOARD SENSOR (END-SENSOR) BHF300F01012A J236 TO BOARD SENSOR (START-SENSOR) JK1-V-OUT BHF300F01012B TP301 C-PB VR501 SW-P TP503 TP504 RF-SW TP501 S-INH 1-13-21 BE9B00F01015A...
  • Page 74 BOARD MAIN Bottom View NOTE: BOARD MEANS PRINTED CIRCUIT BOARD. PIN 6 OF IC1515 WF10 PIN 28 OF CN1501 PIN 14 OF CN1502 PIN 22 OF CN1502 PIN 24 OF CN1502 PIN 26 OF CN1502 PIN 28 OF CN1502 1-13-22 BE9B00F01015A...
  • Page 75 NOTE: BOARD MEANS PRINTED CIRCUIT BOARD. BOARD POWER SWITCH BOARD POWER SWITCH BOARD FUNCTION BOARD FUNCTION Top View Bottom View Top View Bottom View BE9B00F01015B BE9B00F01015C BOARD FRONT JACK BOARD FRONT JACK Top View Bottom View BOARD JUNCTION BOARD JUNCTION Top View Bottom View BE9B00F01022B...
  • Page 76 BOARD POWER SUPPLY Top View NOTE: BOARD MEANS PRINTED CIRCUIT BOARD. CAUTION ! CAUTION ! Because a hot chassis ground is present in the power For continued protection against fire hazard, Fixed voltage (or Auto voltage selectable) power supply circuit is used in this unit. supply circut, an isolation transformer must be used.
  • Page 77 BOARD POWER SUPPLY Bottom View NOTE: BOARD MEANS PRINTED CIRCUIT BOARD. CAUTION ! CAUTION ! Because a hot chassis ground is present in the power For continued protection against fire hazard, Fixed voltage (or Auto voltage selectable) power supply circuit is used in this unit. supply circut, an isolation transformer must be used.
  • Page 78 BOARD REAR JACK Bottom View BOARD REAR JACK Top View NOTE: BOARD MEANS PRINTED CIRCUIT BOARD. BE9B00F01022C BOARD AFV Top View BOARD AFV Bottom View BE6800F01091 1-13-26...

  • Page 79: Waveforms

    WAVEFORMS NOTE: Input: COLOR BAR SIGNAL (WITH 1KHz AUDIO SIGNAL) TP301 UPPER Pin 28 of CN1502 TP504 Pin 6 of IC1515 LOWER C-PB 0.2V RF-SW VIDEO-Cb 0.2V 20μs VIDEO-CVBS 0.5V 20μs J236 UPPER Pin 24 of CN1502 Pin 28 of CN1501 TP504 WF10 LOWER...

  • Page 80: Wiring Diagram < Vcr Section

    WIRING DIAGRAM < VCR SECTION > NOTE: BOARD MEANS PRINTED CIRCUIT BOARD. REAR CN1501 VIDEO- VIDEO- DIGITAL AUDIO OUT S-VIDEO VIDEO-Y AUDIO(R) AUDIO(L) Pb / Cb Pr / Cr ANT-IN ANT-OUT (COAXIAL) -OUT -OUT (DECK ASSEMBLY) EV+10.5V EV+10.5V JK1502 EV+10.5V ACE HEAD P-ON+5V ASSEMBLY...

  • Page 81: Wiring Diagram < Dvd Section

    WIRING DIAGRAM < DVD SECTION > NOTE: BOARD MEANS PRINTED CIRCUIT BOARD. DVD MECHANISM & DVD MAIN BOARD ASSEMBLY DVD MECHANISM CN101 CN1001 CN301 18 W CN1003 17 V 16 U SLED EV+10.5V SENSOR 15 VCC EV+10.5V 14 HU+ EV+10.5V BOARD ENCODER 13 HU- 12 HV+...

  • Page 82: Ic Pin Function Descriptions

    IC PIN FUNCTION DESCRIPTIONS < VCR Section > Signal Function Name DVD- DVD Audio Mute Control 26 OUT AUDIO- Signal MUTE IC501( SERVO / SYSTEM CONTROL IC ) RGB- SCART 2 RGB Through 27 OUT Signal THROUGH Control Signal Function Name AUDIO- 28 OUT...
  • Page 83 Signal Signal Function Function Name Name IN DAVN-L IN A-MODE VPS/PDC Data Receive = “L” Hi-Fi Tape Detection Signal Not Used Capstan Motor Rotation IN C-FG Detection Pulse Composite Synchronized IN C-SYNC Pulse AMPVss AMPVss Control SCART 1 8Pin Level DVD-POW- Abnormal Voltage Detection 59 OUT 8POUT-1...
  • Page 84 IC612 ( FIP DRIVER ) Signal Name Function Name Signal Name Function Name POWER- Power LED Signal Output VCR Mode LED Signal OUT VCR-LED Grid Output Output DVD Mode LED Signal OUT DVD-LED Output Not Used Oscillator Input Power Supply Not Used Serial Data Input Clock Input...

  • Page 85: Lead Identifications

    LEAD IDENTIFICATIONS PQ070XF01SZH PT204-6B-12 KRA103M-AT/P 2SC1815-Y(TE2 F T) KRA104M-AT/P KTA1273-Y-AT/P KRC103M-AT/P KTA1281Y-AT/P KTA-1266-GR-AT/P KTC3198-Y-AT/P KTA1267-Y-AT/P KTC3203-Y-AT/P KTC3199-(BL,Y)-AT/P KTC3205-Y-AT/P 1 2 3 4 E C B E C B EL817A RN1511(TE85R.F) KRC103S-RTK/P KIA4558P/P KTC3875S-(GR,Y)-RTK/P UTC4580 DIP-8 KTC3879-Y-RTK/P 1: Anode 2: Cathode 3: Emitter 4: Collector B1 E B2...

  • Page 86: Exploded Views

    EXPLODED VIEWS Cabinet 2L011 2L011 2L071 See Electrical Parts List 2L071 2L071 for parts with this mark. 2L071 2L081 2L011 2L082 2L062 2L083 2L044 2L100 2B74 FM1001 2L081 2L044 ( P5 ) 2B60 2L044 BOARD AFV 2B76 2L011 2L033 BOARD Rear Jack ( P4 ) BOARD Power Supply BOARD Sensor...
  • Page 87 Packing X22B X20B X20A 1-18-2 E9BA4PEX...

  • Page 88: Mechanical Parts List

    MECHANICAL PARTS LIST PRODUCT SAFETY NOTE: Products marked with a Loca- ! have special characteristics important to safety. tion TSB P/N Reference No. Description Before replacing any of these components, read 2L110 GBJS3100 SCREW S-TIGHT M3X10 BIND carefully the product safety notice in this service HEAD+ manual.

  • Page 89: Electrical Parts List

    ELECTRICAL PARTS LIST PRODUCT SAFETY NOTE: Products marked with a Location TSB P/N Reference No. Description have special characteristics important to safety. Before replacing any of these components, read C311 CHD1JZ30F104 CHIP CERAMIC CAP .(1608) F Z 0.1μF/50V carefully the product safety notice in this service C312 CE1CMAVSL100 ELECTROLYTIC CAP .
  • Page 90 Location Location TSB P/N Reference No. Description TSB P/N Reference No. Description C379 CE1JMAVSLR47 ELECTROLYTIC CAP . 0.47μF/ C471 CHD1JK30B103 CHIP CERAMIC CAP .(1608) B 50V M H7 K 0.01μF/50V C381 CHD1JZ30F104 CHIP CERAMIC CAP .(1608) F Z C472 CE1EMAVSL4R7 ELECTROLYTIC CAP . 4.7μF/ 0.1μF/50V 25V M H7 C382...
  • Page 91 Location Location TSB P/N Reference No. Description TSB P/N Reference No. Description C535 CHD1JZ30F104 CHIP CERAMIC CAP .(1608) F Z C1521 CHD1AZ30F105 CHIP CERAMIC CAP . F Z 1μF/ 0.1μF/50V C536 CHD1JJ3CH561 CHIP CERAMIC CAP . CH J C1524 CHD1EK30B104 CHIP CERAMIC CAP .(1608) B 560pF/50V K 0.1μF/25V...
  • Page 92 Location Location TSB P/N Reference No. Description TSB P/N Reference No. Description C1569 CE0KMASDL471 ELECTROLYTIC CAP . 470μF/ C1611 CE0KMAVSL470 ELECTROLYTIC CAP . 47μF/ 6.3V M 6.3V M H7 C1571 CE1EMAVSL4R7 ELECTROLYTIC CAP . 4.7μF/ C1612 CE0KMAVSL101 ELECTROLYTIC CAP . 100μF/ 25V M H7 6.3V H7 C1572...
  • Page 93 Location Location TSB P/N Reference No. Description TSB P/N Reference No. Description C1672 CE1EMASDL4R7 ELECTROLYTIC CAP . 4.7μF/ D1513 QDTZ001SS133 SWITCHING DIODE 1SS133(T- 25V M C1673 CE1CMASDL470 ELECTROLYTIC CAP . 47μF/ D1516 QDTZ001SS133 SWITCHING DIODE 1SS133(T- 16V M C1675 CE1EMASDL470 ELECTROLYTIC CAP .
  • Page 94 Location Location TSB P/N Reference No. Description TSB P/N Reference No. Description L1506 JW5.0T BOARD JUMPER D0.6-P5.0 Q1529 NQ1ZKRC103SP TRANSISTOR KRC103S-RTK/ L1507 LLBD00PKV022 CHOKE COIL 47μH Q1530 NQ1YKTC3875S CHIP TRANSISTOR L1508 LLAXKATTU100 INDUCTOR 10μH-K-26T KTC3875S-Y-RTK/P L1509 LLAXKATTU101 INDUCTOR(100μH K) Q1531 NQ1ZKRC103SP TRANSISTOR KRC103S-RTK/ LAP02TA101K L1510...
  • Page 95 Location Location TSB P/N Reference No. Description TSB P/N Reference No. Description CHIP RES. 1/10W J 22k Ω CHIP RES. 1/10W J 1.5k Ω R451 RRXAJR5Z0223 R604 RRXAJR5Z0152 CHIP RES. 1/10W J 33k Ω CHIP RES. 1/10W J 2.2k Ω R452 RRXAJR5Z0333 R605...
  • Page 96 Location Location TSB P/N Reference No. Description TSB P/N Reference No. Description CHIP RES. 1/10W F 10k Ω CHIP RES. 1/10W J 10k Ω R1551 RRXAFR5H1002 R1642 RRXAJR5Z0103 CHIP RES. 1/10W F 10k Ω CARBON RES. 1/6W J 15k Ω R1552 RRXAFR5H1002 R1643...
  • Page 97 Location Location TSB P/N Reference No. Description TSB P/N Reference No. Description CHIP RES. 1/10W J 18k Ω R1722 RRXAJR5Z0183 MISCELLANEOUS CHIP RES. 1/10W J 27k Ω R1723 RRXAJR5Z0273 JW001 P000465730 WX1E9B00-007 FLAT CABLE 4P AWG26#2651/ P2.0/100 CHIP RES. 1/10W J 15k Ω R1724 RRXAJR5Z0153 CHIP RES.
  • Page 98 BOARD PSV Location TSB P/N Reference No. Description Location D1003 NDLZ001N5397 DIODE 1N5397-B TSB P/N Reference No. Description D1004 NDLZ001N5397 DIODE 1N5397-B ! P3 P000465050 1VSA14664 BOARD PSV D1006 QDTZ001SS133 SWITCHING DIODE 1SS133(T- Consists of the following: Consists of the following D1008 NDQZ000SB140 SCHOTTKY BARRIER DIODE...
  • Page 99 Location Location TSB P/N Reference No. Description TSB P/N Reference No. Description CARBON RES. 1/6W J 1.8k Ω R1020 RCX6JATZ0182 C2012 CE1JMASDL1R0 ELECTROLYTIC CAP . 1μF/50V CHIP RES. 1/10W J 1k Ω R1021 RRXAJR5Z0102 C2013 CHD1JKB0B102 CHIP CERAMIC CAP . B K CHIP RES.
  • Page 100 Location TSB P/N Reference No. Description CE1CMASSL100 ELECTROLYTIC CAP . 10μF/ 16V M H7 CHD1JZ30F104 CHIP CERAMIC CAP .(1608) F Z 0.1μF/50V CHD1JZ30F104 CHIP CERAMIC CAP .(1608) F Z 0.1μF/50V CE1JMASSL3R3 ELECTROLYTIC CAP . 3.3μF/ 50V M H7 CHD1JZ30F104 CHIP CERAMIC CAP .(1608) F Z 0.1μF/50V CE1CMASSL100 ELECTROLYTIC CAP .
  • Page 101 DECK MECHANISM SECTION DVD VIDEO RECORDER & VIDEO CASSETTE RECORDER D-VR41KF 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 102: 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. I: Replace h: Hours : Cleaning Deck Periodic Service Schedule...
  • Page 103 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 104: 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 105: 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 106 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 107 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 108 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 109 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 110: 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 111 REMOVAL INSTALLATION STEP START- REMOVE/*UNHOOK/ /LOC. PART ADJUSTMENT Fig. No. UNLOCK/RELEASE/ CONDITION UNPLUG/DESOLDER Loading Arm (SP) (+)Refer to Alignment DM2H, DM14H [34] [26] Assembly Sec.Page 2-5-1 Loading Arm (TU) (+)Refer to Alignment [35] [34] DM2H, DM14H Assembly Sec.Page 2-5-1 M Brake (TU) [36] [16],[26] DM1H, DM15H...
  • Page 112 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] [22] [28] [20] [33] Fig. DM2H 2-4-3 U29PHSDA...
  • Page 113 (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 114 [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] 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 [27] When reassembling [10] and...
  • Page 115 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 116 (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 U29PHSDA...
  • Page 117 Installation of [26] [26] (C-3) Position of Mode Lever when installed Pin of [33] Pin of [37] (S-9) Pin of [36] (L-8) [23] (L-7) Bottom View [24] (C-5) [26] (C-4) (C-2) [28] [27] [25] [29] [30] Align [26] and [27] as shown. [27] First groove on [27] First tooth on [47]...
  • Page 118 [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 U29PHSDA...

  • Page 119: 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 that System Control Circuit only through the Mode Switch, their triangle marks point to each other as shown in...

  • Page 120: 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 121 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 122 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 U29P4HSDEX...

  • Page 123: Deck Parts List

    DECK PARTS LIST Loca- tion TSB P/N Reference No. Description Loca- tion TSB P/N Reference No. Description B557 0VM403205A MOTOR PULLEY U5 B558 MMDZB12MF003 LOADING MOTOR RF-500TB- P000468620 1VSA14761 CYLINDER ASSEMBLY(N236C) 12560 MK14 PAL 6HD B559 P000468020 0VSA13450 CLUTCH ASSEMBLY(HI) MK12 P000468180 1VSA12912 LOADING MOTOR ASSEMBLY MK14...
  • Page 125 Appendix: D-VR41KF REVISION HISTORY Date Reason for Change Changed Parts List due to correct TSB P/N, Reference No, and Description 07/30/07 for LED, Location No. D555...

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