Philips DVP620VR/78 Service Manual Download Page 42

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Main 4/8 Schematic Diagram < VCR Section >

1-12-11

1-12-12

H9622SCM4

“ “ = SMD

Voltage indications for PLAY, REC and DVD modes
on the Schematic Diagrams are as shown below:

5.0
(2.5)

5.0

THE SAME VOLTAGE FOR
PLAY,REC & DVD MODES.

INDICATES THAT THE VOLTAGE
IS NOT CONSISTENT HERE.

PLAY MODE
REC MODE
DVD MODE

Summary of Contents for DVP620VR/78

Page 1: ...ds Subject to modification Version 1 0 GB 3139 785 30690 78 NTSC DVD VCR Combi DVP620VR 78 c Copyright 2004 Philips Consumer Electronics B V Eindhove The Netherlands All rights reserved No part of this publication may be reproduced stored in a retrieval system or transmitted in any form or by any means electronic mechanical photocopying or otherwise without the prior permission of Philips CLASS 1 ...

Page 2: ...RUCTIONS 1 8 1 ELECTRICAL ADJUSTMENT INSTRUCTIONS 1 9 1 FIRMWARE RENEWAL MODE 1 10 1 BLOCK DIAGRAMS 1 11 1 SCHEMATIC DIAGRAMS CBA S AND TEST POINTS 1 12 1 WAVEFORMS 1 13 1 WIRING DIAGRAM VCR SECTION 1 14 1 WIRING DIAGRAM DVD SECTION 1 14 2 SYSTEM CONTROL TIMING CHARTS 1 15 1 IC PIN FUNCTION DESCRIPTIONS 1 16 1 LEAD IDENTIFICATIONS 1 17 1 ELECTRICAL PARTS LIST 1 18 1 EXPLODED VIEWS 1 19 1 MECHANICA...

Page 3: ...ns when the diode is turned on Do not look directly at the laser beam Caution Use of controls and adjustments or doing procedures other than those specified herein may result in hazardous radiation exposure Do not look directly at the laser beam coming from the pickup or allow it to strike against your skin Drive Mecha Assembly Laser Beam Radiation Laser Pickup Turntable LASER RADIATION WHEN OPEN ...

Page 4: ...te especially 1 Wires covered with PVC tubing 2 Double insulated wires 3 High voltage leads D Use specified insulating materials for hazardous live parts Note especially 1 Insulation tape 2 PVC tubing 3 Spacers 4 Insulators for transistors E When replacing AC primary side components transformers power cord etc wrap ends of wires securely about the terminals before solder ing F Observe that the wir...

Page 5: ...gs and externally exposed accessible parts RF termi nals antenna terminals video and audio input and output terminals microphone jacks earphone jacks etc is lower than or equal to the specified value in the table below Measuring Method Power ON Insert load Z between B earth ground power cord plug prongs and exposed accessible parts Use an AC voltmeter to measure across the terminals of load Z See ...

Page 6: ...achine then apply hot air to the Flat Pack IC about 5 to 6 seconds Fig S 1 1 2 Remove the flat pack IC with tweezers while apply ing the hot air 3 Bottom of the flat pack IC is fixed with glue to the CBA when removing entire flat pack IC first apply soldering iron to center of the flat pack IC and heat up Then remove glue will be melted Fig S 1 6 4 Release the flat pack IC from the CBA using twee ...

Page 7: ...removing entire flat pack IC first apply soldering iron to center of the flat pack IC and heat up Then remove glue will be melted Fig S 1 6 4 Release the flat pack IC from the CBA using twee zers Fig S 1 6 With Iron Wire 1 Using desoldering braid remove the solder from all pins of the flat pack IC When you use solder flux which is applied to all pins of the flat pack IC you can remove it easily Fi...

Page 8: ...Installation 1 Using desoldering braid remove the solder from the foil of each pin of the flat pack IC on the CBA so you can install a replacement flat pack IC more easily 2 The I mark on the flat pack IC indicates pin 1 See Fig S 1 7 Be sure this mark matches the 1 on the PCB when positioning for installation Then presolder the four corners of the flat pack IC See Fig S 1 8 3 Solder all pins of t...

Page 9: ...ed to remove any static electricity that may be charged on the body 2 Ground for Workbench Be sure to place a conductive sheet or copper plate with proper grounding 1MΩ on the workbench or other surface where the semi conductors are to be placed Because the static electricity charge on cloth ing will not escape through the body grounding band be careful to avoid contacting semi conductors with you...

Page 10: ...hanism is not functioning correctly When the drum is not working properly Led Mode Indicator Active When reel and capstan mechanism is not functioning correctly EJECT A R is displayed on a TV screen Refer to Fig 1 When tape loading mechanism is not func tioning correctly EJECT A T is displayed on a TV screen Refer to Fig 2 When cassette loading mechanism is not functioning correctly EJECT A C is d...

Page 11: ...into the Deck Mechanism Assembly and press the PLAY button The tape will be loaded into the Deck Mechanism Assembly Make sure the power is on connect TP502 S INH to GND This will stop the function of Tape Start Sensor Tape End Sensor and Reel Sensors If these TPs are connected before plugging in the unit the function of the sensors will stay valid See Fig 1 Note Because the Tape End Sensors are in...

Page 12: ...1 6 1 H9622IB OPERATING CONTROLS AND FUNCTIONS ...

Page 13: ...1 6 2 H9622IB ...

Page 14: ...1 6 3 H9622IB ...

Page 15: ...1 6 4 H9622IB ...

Page 16: ...1 6 5 H9622IB ...

Page 17: ...1 6 6 H9622IB ...

Page 18: ...gnal for Test Point CTL Playback Record Control Signal CTL Playback Record Control Signal CTLA CTL Amp AC GND D CONT Drum Motor Control Signal D PFG Drum PG FG Input Signal D REC H Delayed Record Signal D V SYNC Dummy V sync Output DISPLAY CLK VFD Driver IC Control Clock DISPLAY DATA VFD Driver IC Control Data DISPLAY ENA VFD Driver IC Chip Select Signal DVD A DVD Audio Signal DVD A MUTE DVD Audio...

Page 19: ...E VIDEO Remote Control Sensor RESET System Reset Signal Reset L RF SW Video Head Switching Pulse SIF Source Input Format SPDIF Digital Audio Interface Format Signal ST S Tape Start Position Detector Signal ST SAP IN Tuner Stereo Sap Detector Signal Input ST SAP MODE Tuner Stereo Sap Mode Signal Signal Name Function SXI Operation Mode Selecting Input Signal T REEL Take Up Reel Rotation Signal TIMER...

Page 20: ...2 two Locking Tabs L 2 5 Refer to Reference Notes ID LOC No PART REMOVAL Fig No REMOVE UNHOOK UNLOCK RELEASE UNPLUG DESOLDER Note 1 Top Case D1 4 S 1 2 Front Assembly D2 3 L 1 3 L 2 1 1 1 1 2 3 Top Bracket D2 3 S 2 4 DVD Mecha Assembly D3 4 S 3 CN401 CN601 5 Partition Plate D3 2 S 4 6 Loader Holder D3 2 S 5 7 DVD Main CBA Unit D4 2 S 6 CN201 CN301 2 2 1 2 2 3 1 Top Case 2 Front Assembly 3 Top Brac...

Page 21: ... Unit Fig D4 2 2 Short the three short lands of FPC cable with sol der before removing the FFC cable CN201 from it If you disconnect the FFC cable CN201 the laser diode of pickup will be destroyed Fig D4 CAUTION 3 When reassembling confirm the FFC cable CN201 is connected completely Then remove the solder from the three short lands of FPC cable Fig D4 4 When reassembling solder wire jumpers as sho...

Page 22: ... Partition Plate 6 Loader Holder 4 DVD Mecha Assembly Fig D3 CN201 CN301 S 6 7 DVD Main CBA Unit DVD Mecha A Short the three short lands by soldering Either of two places Connector View for A Fig D4 S 6 S 7 S 7 S 7 S 8 S 8 8 VCR Chassis Unit Fig D5 ...

Page 23: ...der Lead with blue stripe From FE Head BOTTOM VIEW Lead connections of Deck Assembly and Main CBA Desolder From Capstan Motor Assembly Printing side Desolder From Cylinder Assembly From ACE Head Assembly Lead with blue stripe Lead with blue stripe Desolder Lead with red stripe 12 Main CBA SW512 LD SW LD SW Pin Hole Hole Shaft Cam Gear 12 Main CBA 9 Deck Assembly Pin Fig D6 ...

Page 24: ...ew for A Rotate this roulette in the direction of the arrow A DVD Mecha HOW TO EJECT MANUALLY 1 Remove the Top Case 2 Rotate the roulette in the direction of the arrow as shown below 3 Pull the tray slowly with a hand ...

Page 25: ...ith 10 1 probe V Range 0 001 50V Div F Range DC AC 20MHz 2 Alignment Tape VFMS0001H6 Head Switching Position Adjust ment Purpose To determine the Head Switching position during playback Symptom of Misadjustment May cause Head Switching noise or vertical jitter in the picture Reference Notes Playback the Alignment tape and adjust VR501 so that the V sync front edge of the CH1 video output wave form...

Page 26: ... on by pressing the STANDBY ON button and the tray will close 9 Press 1 2 3 4 and DISPLAY buttons on the remote control unit in that order Fig g appears on the screen 10 Press CLEAR button on the remote control unit Fig h appears on the screen When OK appears on the screen the factory default will be set Then the firmware renewal mode is complete 11 To exit this mode press STANDBY ON button F W Ve...

Page 27: ...LOCK DATA TU701 TUNER UNIT 11 12 VCR TV 5 DVD H IND 71 D567 DVD D566 VCR D561 POWER AL 5V Q566 Q567 LD SW 68 AL 12V 1 AL 5V DVD L IND 70 AL 5V SW512 AL 18V P ON 5V LD SW AL 5V D555 S LED TO POWER SUPPLY BLOCK DIAGRAM IIC BUS SCL IIC BUS SDA 12 13 IIC BUS SCL 77 VCR TV IIC BUS SDA NORMAL L ST SAP MODE 61 59 Hi Fi H SW Hi Fi NOR IN ST SAP IN Hi Fi H SW 25 KEY SWITCH KEY SWITCH TP502 P ON 9V S INH CA...

Page 28: ...P302 VIDEO L 2 HEAD VIDEO R 2 HEAD TP301 C PB D V SYNC C SYNC D V SYNC 25 53 24 YCA SCL 14 36 37 39 34 Q301 BUFFER 28 58 60 SP EP 54 YCA SDA 55 YCA CS SERIAL I F VCA CLAMP 69 70 SP HEAD AMP EP HEAD AMP 72 73 74 65 66 67 ENV DET C ROTA C ROTA RF SW WF2 WF3 JK753 V IN FRONT Q391 TU701 VIDEO IN OUTPUT SELECT VIDEO OUT TP751 V OUT 6 18 IC752 INPUT SELECT 15 2 1 10 9 11 WF1 BUFFER TO SERVO SYSTEM CONTR...

Page 29: ...R F A IN L F A IN L A IN R A OUT R A OUT L N A OUT N A IN JK752 A IN R A IN L JK754 A IN L JK755 A IN R TO Hi Fi AUDIO BLOCK DIAGRAM TO Hi Fi AUDIO BLOCK DIAGRAM TO DVD VIDEO AUDIO BLOCK DIAGRAM DVD SECTION FRONT REAR IC751 OUTPUT SELECT TUNER UNIT DVD A L DVD A R 3 2 4 5 DVD A L DVD A R TP753 A OUT R TP754 A OUT L SW CTL DVD VCR DVD VCR JK751 A OUT R A OUT L JK756 A OUT R A OUT L 9 10 11 5 3 12 1...

Page 30: ...MOD A A OUT R N A IN Hi Fi H SW A MUTE H NORMAL L 40 ST SAP MODE TO AUDIO BLOCK DIAGRAM IIC BUS SDA IIC BUS SCL P ON 9V TO SERVO SYSTEM CONTROL BLOCK DIAGRAM Hi Fi AUDIO R HEAD Hi Fi AUDIO L HEAD CYLINDER ASSEMBLY MAIN CBA Hi Fi A R 7 Hi Fi COM 8 Hi Fi A L 9 CN253 IC451 MTS SAP Hi Fi AUDIO PROCESS Hi Fi HEAD AMP REC AUDIO SIGNAL PB AUDIO SIGNAL Mode SP REC PILOT CANCEL TO AUDIO BLOCK DIAGRAM TO SE...

Page 31: ...it is measured using hot GND as a common terminal 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 MEMO TYPE RISK OF FIRE REPLACE FUSE AS MARKED This symbol means fast operating fuse Ce symbole reprèsente un fusible à fusion rapide A V F TO DVD MAIN CBA UNIT CN401 TO SE...

Page 32: ...TOR DRIVE TRACKING ACTUATOR DRIVE 147 TRAY IN SLD 75 SPDL 76 TRACKING DRIVE 148 FOCUS DRIVE 66 TO DIGITAL SIGNAL PROCESS BLOCK DIAGRAM FS FS TS TS TO DVD VIDEO AUDIO BLOCK DIAGRAM ADAC MD ADAC MC ADAC ML ADAC MC ADAC ML PCM SCLK A MUTE ADAC MD A MUTE PCM SCLK TRAY IN 3 SP 4 SP 5 TRAY IN 6 GND 7 SL 8 SL VREF RESET 73 RESET IC462 1 3 3 3V IC202 OP AMP 15 16 14 13 12 11 17 18 23 6 4 5 3 1 2 25 24 27 ...

Page 33: ...ERAL I O INTERRUPT CONTROLLER TIMER WATCH DOG TIMER REMOTE CONTROL 32BIT CPU STREAM I F EXTERNAL MEMORY I F SDRAM ECC UMAC 114 115 116 117 132 131 134 133 129 130 126 124 125 123 83 DEBUG BCU INST RAM DATA RAM D A D A D A TO DVD VIDEO AUDIO BLOCK DIAGRAM 149 158 Y C Pr Cr Pb Cb VIDEO Y I P VIDEO C VIDEO Pr Cr VIDEO Pb Cb TO DVD VIDEO AUDIO BLOCK DIAGRAM 177 SPDIF 170 PCM BCK 171 PCM DATA 169 PCM L...

Page 34: ...8 8 VIDEO Y I P 10 10 VIDEO C 6 6 VIDEO Pb Cb 4 4 VIDEO Pr Cr JK1401 S VIDEO OUT CN1601 3 4 2 1 IC1402 VIDEO DRIVER 13 4dB AMP 2dB AMP LPF DRIVER Y C 14 2dB AMP DRIVER 4dB AMP 2dB AMP LPF DRIVER 11 4dB AMP 2dB AMP LPF DRIVER 6 10 4dB AMP 2dB AMP LPF DRIVER 8 VIDEO Pb Cb OUT VIDEO Y OUT VIDEO Pr Cr OUT JK1403 3 1 15 TO DIGITAL SIGNAL PROCESS BLOCK DIAGRAM DVD VIDEO SIGNAL VIDEO Y I P VIDEO C VIDEO ...

Page 35: ...nt parts which are listed with their part numbers in the parts list section of the service manual 3 How to read converged lines Examples 1 1 D3 means that line number 1 goes to area D3 2 1 B1 means that line number 1 goes to area B1 4 All resistance values are indicated in ohms K 103 M 106 5 Resistor wattages are 1 4W or 1 6W unless other wise specified 6 All capacitance values are indicated in µF...

Page 36: ... R526 B 4 C529 D 4 R527 B 3 C530 D 4 R528 B 3 C531 C 4 R530 B 2 C532 C 4 R537 A 2 C533 C 4 R542 A 1 C534 C 4 R543 B 2 C535 C 4 R544 B 4 C536 C 4 R545 C 1 C537 B 4 R546 C 1 C541 F 3 R550 D 2 C544 E 4 R610 C 1 R611 D 2 CN501 A 4 R616 D 4 CN502 F 4 R618 C 1 CN504 A 4 R619 C 2 R626 C 1 D501 E 4 R640 F 2 D510 F 3 D555 A 1 SW511 A 2 IC501 C 3 VR501 B 4 L501 A 1 X501 D 3 L502 E 3 X502 D 3 L504 E 3 TP505 ...

Page 37: ...5 0 THE SAME VOLTAGE FOR PLAY REC DVD MODES INDICATES THAT THE VOLTAGE IS NOT CONSISTENT HERE PLAY MODE REC MODE DVD MODE IC501 KEY VOLTAGE CHART 0 00 0 51V POWER DVD VCR 0 51 0 92V REW CH UP 0 92 1 27V FF CH DOWN 1 27 1 61V STOP EJECT SENS INH 1 61 1 98V PLAY 1 98 2 39V REC 2 39 2 90V 2 90 3 60V 3 60 4 30V 4 30 5 00V KEY OFF KEY OFF Pin No Voltage KEY 1 67 PIN KEY 2 66 PIN ...

Page 38: ... c d e f g c d e f f g c d e f g c d e f g c d e f g c d e f g h i i a b a b a b a b a b FIP502 MATRIX CHART REPEAT TITLE GROUP VCR CHP REC SACD TRK ALL B PSCAN DVD P M HD V CD A A SMD Voltage indications for PLAY REC and DVD modes on the Schematic Diagrams are as shown below 1 2 3 5 0 2 5 0 5 0 THE SAME VOLTAGE FOR PLAY REC DVD MODES INDICATES THAT THE VOLTAGE IS NOT CONSISTENT HERE PLAY MODE REC...

Page 39: ... R600 G 3 R602 G 3 D502 G 3 R603 G 3 D566 H 2 R605 G 3 D567 H 2 R701 H 1 R704 H 1 IC571 J 3 R705 H 1 R2025 J 3 L701 H 1 SW502 H 4 Q566 H 3 SW505 I 4 Q567 H 3 SW508 I 4 SW509 I 4 R467 I 1 SW512 J 1 R531 K 1 SW513 I 4 R532 K 1 SW514 I 4 R533 J 1 SW515 I 4 R534 J 1 SW516 I 4 R535 J 1 R536 J 1 FIP502 J 4 R540 K 1 TU701 H 2 R541 K 2 R571 J 3 TP502 I 4 R572 K 3 TP506 K 1 R573 H 2 TP507 K 1 R574 H 2 RESI...

Page 40: ... C316 Q 3 C425 N 1 R324 O 4 C317 Q 3 R327 N 3 C318 Q 3 CN253 M 4 R401 N 2 C319 Q 4 R402 N 2 C320 Q 4 IC301 N 2 R407 N 2 C321 Q 4 R408 N 2 C322 Q 4 L251 N 3 R409 O 2 C324 P 4 L303 N 4 R410 O 1 C326 P 4 L304 N 4 R411 O 1 C327 P 4 L421 N 1 R412 O 1 C328 P 4 L422 N 2 R413 O 1 C329 P 4 R414 O 1 C330 P 4 Q301 Q 3 R415 O 1 C331 O 4 Q302 Q 4 R416 O 2 C332 O 4 Q421 N 1 R421 O 1 C333 P 4 Q422 N 1 R422 N 1 C...

Page 41: ...12 10 H9622SCM3 SMD Voltage indications for PLAY REC and DVD modes on the Schematic Diagrams are as shown below 1 2 3 5 0 2 5 0 5 0 THE SAME VOLTAGE FOR PLAY REC DVD MODES INDICATES THAT THE VOLTAGE IS NOT CONSISTENT HERE PLAY MODE REC MODE DVD MODE ...

Page 42: ... 12 12 H9622SCM4 SMD Voltage indications for PLAY REC and DVD modes on the Schematic Diagrams are as shown below 1 2 3 5 0 2 5 0 5 0 THE SAME VOLTAGE FOR PLAY REC DVD MODES INDICATES THAT THE VOLTAGE IS NOT CONSISTENT HERE PLAY MODE REC MODE DVD MODE ...

Page 43: ...8 U 2 C459 V 2 R451 T 2 C460 V 2 R452 T 2 C461 V 2 R453 U 1 C462 V 2 R454 T 2 C463 V 3 R455 T 2 C465 V 3 R456 U 2 C466 V 3 R457 V 2 C467 V 3 R458 V 3 C469 V 3 R459 V 3 C470 V 4 R462 T 4 C471 U 4 R463 S 3 C472 U 4 R464 S 3 C473 U 4 R465 S 3 C474 U 4 R466 S 3 C475 U 4 R468 S 2 C476 U 4 R469 S 2 C477 T 4 R471 S 2 C478 T 4 R472 V 3 C479 T 4 R480 S 3 C480 T 4 R481 S 2 C481 T 4 R482 U 1 C483 T 4 R483 U ...

Page 44: ...AB 1 C1351 AA 1 L1401 AA 2 R1392 X 2 C1352 AA 1 L1441 AA 2 R1396 Y 2 C1354 AA 1 L1442 AA 2 R1397 Y 2 C1355 Z 1 L1461 AA 2 R1401 Y 2 C1394 Y 2 L1481 AA 3 R1402 AA 3 C1395 Y 2 L1522 Y 2 R1403 Y 3 C1403 Y 3 R1421 X 2 C1422 AA 2 Q1201 Z 1 R1422 AA 2 C1423 Y 3 Q1202 Z 1 R1441 Y 3 C1441 Y 3 Q1204 Z 1 R1442 AA 2 C1442 AA 3 Q1351 AA 1 R1443 AA 2 C1443 Z 3 Q1385 Y 2 R1461 X 3 C1461 X 3 R1462 AA 2 C1462 AA ...

Page 45: ... 12 16 H9622SCM5 SMD Voltage indications for PLAY REC and DVD modes on the Schematic Diagrams are as shown below 1 2 3 5 0 2 5 0 5 0 THE SAME VOLTAGE FOR PLAY REC DVD MODES INDICATES THAT THE VOLTAGE IS NOT CONSISTENT HERE PLAY MODE REC MODE DVD MODE ...

Page 46: ...ic Diagram Parts Location Guide Ref No Position C370 AC 3 C371 AC 3 C391 AF 3 C392 AF 3 C751 AF 2 C752 AF 2 C757 AD 3 C762 AD 3 C766 AE 3 C772 AF 2 C773 AF 2 C777 AE 3 C2016 AD 3 IC751 AE 3 IC752 AC 3 L771 AF 4 Q391 AF 3 R391 AF 3 R392 AF 3 R395 AF 3 R397 AF 3 R470 AD 2 R751 AF 2 R752 AF 1 R753 AF 1 R759 AC 3 R760 AC 1 R770 AF 2 R777 AF 3 R778 AF 3 JK751 AG 2 JK752 AG 1 JK753 AG 1 JK754 AG 1 JK755...

Page 47: ...L 4 C2004 AL 1 R092 AL 4 C2012 AL 1 R095 AL 4 R702 AL 4 CN1001 AH 3 R1002 AH 3 CN2003 AL 1 R1025 AL 2 R1026 AL 2 D019 AK 3 R1044 AL 2 D052 AK 3 R1059 AK 2 D080 AK 3 R1068 AK 2 D081 AK 3 R1076 AK 2 D082 AK 3 R1077 AJ 2 D100 AI 1 R1078 AH 3 D101 AI 1 R1085 AI 3 D504 AL 4 R1086 AI 3 D701 AL 4 R1087 AH 3 D1031 AI 4 R1090 AI 3 D1036 AJ 3 R1091 AI 3 D1037 AK 3 R2001 AI 2 D1038 AK 3 R2002 AI 2 D1058 AL 2...

Page 48: ...STENT HERE PLAY MODE REC MODE DVD MODE MAIN 8 8 Schematic Diagram Parts Location Guide Ref No Position Ref No Position C013 AQ 4 L1001 AN 4 C017 AQ 4 L1004 AP 3 C018 AQ 4 L1007 AQ 2 C020 AQ 3 L1020 AQ 2 C021 AQ 3 C030 AQ 1 Q031 AQ 1 C1001 AN 3 Q1001 AP 3 C1002 AQ 3 Q1003 AO 3 C1003 AP 3 Q1008 AO 2 C1004 AO 3 C1005 AP 3 JC01 AR 1 C1006 AN 3 R031 AP 1 C1007 AQ 2 R032 AQ 1 C1008 AP 3 R034 AQ 1 C1013 ...

Page 49: ...ED A V F 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 This symbol means fast operating fuse Ce symbole reprèsente un fusible à fusion rapide CAUTION Fixed voltage or Auto voltage selectable power supply circuit is used i...

Page 50: ...SSIS GROUND IS PRESENT IN THE POWER SUPPLY CIRCUIT AN ISOLATION TRANSFORMER MUST BE USED ALSO IN ORDER TO HAVE THE ABILITY TO INCREASE THE INPUT SLOWLY WHENTROUBLESHOOTING THIS TYPE POWER SUPPLY CIRCUIT A VARIABLE ISOLATION TRANSFORMER IS REQUIRED A V F CAUTION FOR CONTINUED PROTECTION AGAINST FIRE HAZARD REPLACE ONLY WITH THE SAME TYPE FUSE ATTENTION POUR UNE PROTECTION CONTINUE LES RISQES D INCE...

Page 51: ... G 4 Q055 F 2 ICS COILS CAPACITORS DIODES CAPACITORS CAPACITORS CAPACITORS TRANSISTORS CONNECTORS DIODES Ref No Position Ref No Position Ref No Position Ref No Position Ref No Position Q056 F 2 R318 B 3 R518 E 2 R1005 G 4 R1461 E 4 Q057 F 2 R319 B 3 R521 C 2 R1006 G 4 R1462 F 5 Q301 C 3 R320 B 3 R523 C 2 R1008 G 4 R1481 E 4 Q302 C 3 R321 B 2 R524 C 2 R1010 G 4 R1482 F 5 Q391 D 5 R322 A 2 R525 C 2 ...

Page 52: ...Section 1 12 29 1 12 30 Voltage indications for PLAY and STOP modes on the Schematic Diagrams are as shown below 1 2 3 5 0 2 5 5 0 THE SAME VOLTAGE FOR BOTH PLAY STOP MODES INDICATES THAT THE VOLTAGE IS NOT CONSISTENT HERE PLAY MODE STOP MODE SMD ...

Page 53: ...tic Diagram DVD Section Voltage indications for PLAY and STOP modes on the Schematic Diagrams are as shown below 1 2 3 5 0 2 5 5 0 THE SAME VOLTAGE FOR BOTH PLAY STOP MODES INDICATES THAT THE VOLTAGE IS NOT CONSISTENT HERE PLAY MODE STOP MODE SMD ...

Page 54: ...27 2 3 2 3 32 64 0 0 96 128 1 7 1 7 PIN NO PLAY STOP PIN NO PLAY STOP PIN NO PLAY STOP PIN NO PLAY STOP 129 2 3 2 3 161 3 4 3 4 193 225 3 4 3 4 130 2 3 2 3 162 0 0 194 226 131 2 3 2 3 163 1 8 1 8 195 227 132 2 4 2 3 164 0 0 196 3 4 3 4 228 133 2 4 2 4 165 1 7 1 8 197 229 0 0 134 2 4 2 4 166 1 7 1 7 198 230 135 2 3 2 3 167 3 4 3 4 199 231 3 4 3 4 136 2 3 2 3 168 0 0 200 232 1 3 1 6 137 2 3 2 3 169 ...

Page 55: ...tic Diagram DVD Section Voltage indications for PLAY and STOP modes on the Schematic Diagrams are as shown below 1 2 3 5 0 2 5 5 0 THE SAME VOLTAGE FOR BOTH PLAY STOP MODES INDICATES THAT THE VOLTAGE IS NOT CONSISTENT HERE PLAY MODE STOP MODE SMD ...

Page 56: ... 6 of IC1402 WF5 VIDEO Y VIDEO Y 0 2V 0 2V 20 20µs VIDEO C VIDEO C 0 2V 0 2V 20 20µs VIDEO CVBS VIDEO CVBS 0 5V 0 5V 20 20µs WF7 AUDIO L AUDIO L 1V 1V 0 5ms 0 5ms WF8 AUDIO R AUDIO R 1V 1V WF9 SPDIF SPDIF 1V 1V 0 1 0 1µs s Pin 8 of CN1601 Pin 10 of CN1601 Pin 14 of CN1601 Pin 16 of CN1601 Pin 19 of CN1601 NOTE Input VCR COLOR BAR SIGNAL WF1 WF3 DVD POWER ON STOP MODE WF4 WF6 CD 1kHz PLAY WF7 WF9 0...

Page 57: ...VD A R AUDIO 5V SPDIF 19 REMOTE 21 22 DVD POWER 23 DVD PLAY DVD OPEN CLOSE 24 25 OUTPUT SELECT DVD STOP 26 27 CAPSTAN MOTOR FULL ERASE HEAD FE HEAD VIDEO R 1 HEAD VIDEO L 1 HEAD VIDEO IN AUDIO IN R AUDIO IN L FRONT VIDEO L 2 HEAD VIDEO R 2 HEAD Hi Fi AUDIO R HEAD Hi Fi AUDIO L HEAD MAIN CBA BH9600F01012A DECK ASSEMBLY SENSOR CBA BHF300F01011A B DVD OPEN CLOSE CBA BH9600F01012C SENSOR CBA BHF300F01...

Page 58: ...8 19 20 REMOTE 21 22 DVD POWER 23 DVD PLAY DVD OPEN CLOSE 24 25 OUTPUT SELECT DVD STOP 26 27 CN401 PICK UP UNIT CN201 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 TS TS FS CD LD FS GND DVD PD GND CD PD PD MONI DVD LD VREF E GND B P ON 5V CD DVD D A C F GND LD DETECTOR FS TS 7 9 11 2 3 6 5 4 TO MAIN CBA CN1601 GND VODEO Pr Cr GND VIDEO Pb Cb VIDEO Y I P GND VIDEO C GND GND DVD A MUTE I P SW N...

Page 59: ... 2 17V SF 1 51V 1 98V 1 80V SM 3 20V 3 75V 3 40V AU 0 26V 0 65V 0 44V AL 4 51V 5 00V 5 00V SS 2 61V 3 19V 2 97V RS Note EJ RS Loading FWD LM FWD REV H RS EJ Loading REV LM FWD REV L Stop A Loading Stop B Unloading Note Symbol Loading Status EJ Eject CL Eject REW Reel SB REW Reel Stop B TL Stop B Brake Cancel FB Brake Cancel FF REW SF FF REW Stop M FF REW SM Stop M FF REW Stop A AU Stop A Play REC ...

Page 60: ...ode Fig 1 18 RF SW F AD Internal Signal C DRIVE PB CTL 27 C F R 79 H A SW 78 ROTA The first rise of RF SW after a rise in F AD signal Acceleration Detection T1 AT H Z H L L Stop detection T2 ST Slow Tracking Value BL Reversal Limit Value STILL FRAME ADVANCE STILL 20ms ...

Page 61: ...AD Internal Signal C DRIVE PB CTL 27 C F R 79 H A SW 78 ROTA H Z H L L STILL STILL AT ST BL Stop detection T2 Acceleration Detection T1 Slow Tracking Value Reversal Limit Value FRAME ADVANCE The first rise of RF SW after a rise in F AD signal 20ms ...

Page 62: ... REV LD REV LD REV 0 2S 0 5S PIN NO CL EJ SS SS AU AU TL LD SW CL SS LM FWD M REV C DRIVE Z ON ON C F R DRUM ROTATION P ON A MUTE H D REC H D PB PAUSE SLOW AU AL AL AU SF SM EJ AU RS SF SM TL FB AL SB 74 21 27 22 7 23 24 TV VCR 77 POWER OFF STOP PLAY RS FS STILL SLOW PLAY STOP PLAY DISPLAY 0 1S SB TL SB FB SM SM SF AL AL RS AU AL SS AU AL SM 0 8S 0 2S 0 3S 1 0S 0 2S 1 5S 2H 2 5S 4H 0 5S 0 2S 0 8S ...

Page 63: ... EJECT STOP A LD REV FF LD REV LD REV LD FWD LD FWD LD FWD LD FWD LD FWD LD FWD LD FWD REC PAUSE REC REC REW LD REV LD REV LD REV LD REV LD REV LD REV LD REV PAUSE REC or PAUSE STOP EJECT STOP EJECT STOP EJECT 2 STOP A FF STOP A REW STOP A REC PAUSE PAUSE or REC STOP A EJECT STOP FF STOP REW STOP REC REC REC PAUSE STOP TL TL SM SM SF SF AL AL SM AL AL AL AU AU SM TL SB EJ RS RS SM SM SF FB SM AU A...

Page 64: ... Section Tray IN TL221 Sled Drive TP303 Disc Drive TP301 Focus Drive TP304 Tracking Drive TP302 0V 3 3V 0V 1 65V 0V 0V 0V 1 65V 1 65V 1 65V Tray Close Play Play Tray Open Tray Close Disc Rotation Play Disc Stop Tray Open ...

Page 65: ... L 19 OUT D V SYNC Dummy V sync Output H Hi z 20 IN RESET System Reset Signal Reset L L 21 OUT LM FWD REV Loading Motor FWD REV Output H Z L 22 OUT P ON L Power On Signal to Low L 23 N U Not Used 24 OUT D REC H Delayed Record Signal H 25 OUT HiFi H SW HiFi Audio Head Switching Pulse H L 26 OUT DVD POWER DVD Power Control Signal H 27 OUT C F R Capstan Motor FWD REV Control Signal FWD L REV H H L 28...

Page 66: ... Position Detect Signal A D 63 IN AFC Automatic Frequency Control Signal A D 64 IN V ENV Video Envelope Comparator Signal A D 65 IN PG DELAY Video Head Switching Pulse Signal Adjusted Voltage A D 66 IN KEY 2 A D Key Data Signal 2 A D 67 IN KEY 1 A D Key Data Signal 1 A D 68 IN LD SW Deck Mode Position Detector Signal A D 69 IN ST S Tape Start Position Detector Signal A D 70 OUT DVD L IND VCR Mode ...

Page 67: ... N U Not Used 4 N U Not Used 5 VSS GND 6 VDD Power Supply 7 OUT a Segment Output 8 OUT b 9 OUT c 10 OUT d 11 OUT e 12 IN f 13 IN g 14 OUT h 15 VEE Pull Down Level 16 OUT i Segment Output 17 OUT 7G Grid Output 18 6G 19 5G 20 4G 21 3G 22 2G 23 1G 24 VDD Power Supply 25 VSS GND 26 IN OSC Oscillator Input 27 N U Not Used 28 IN FP DIN Serial Data Input ...

Page 68: ...ference S Source G Gate D Drain 2SA1175 J H F 2SC2785 J H F K BA1F4M T BN1F4M T KRA103M KRC103M KTA1266 GR KTA1267 GR Y KTC3193 Y KTC3199 Y GR BL 2SA1015 GR TPE2 2SC1815 BL TPE2 2SC1815 GR TPE2 2SC1815 Y TPE2 2SC2120 Y TPE2 KTC3198 Y GR KTC3203 Y EL817A EL817B EL817C LTV 817B F LTV 817C F PS2561A 1 Q W MID 32A22F PT204 6B 12 KIA4558P NJM4558D 2SK3543 BU4053BCF CD4053BCSJX TC4053BF N PT6313 S TP MM...

Page 69: ...ANSFO CSA SW0412A TU701 9965 000 24167 TUNER UNIT VH025AFE W001 9965 000 24168 FFC CABLE 27P FFC P1 00 230 W003 9965 000 24169 FFC CABLE 19P FFC P1 00 195 X301 9965 000 12363 X TAL 3 579545MHZ 20PPM X301 9965 000 24170 X TAL 3 579545MHZ ALTERNATIVE X501 9965 000 09220 X TAL 14 31818MHZ X502 9965 000 12288 X TAL 32 768KHZ 20PPM X502 9965 000 19592 X TAL32 768KHZ 20PPM ALTERNATIVE CAPACITORS C020 48...

Page 70: ...0 CHOKE COIL 47UH K ALTERNATIVE L1020 9965 000 05627 CHOKE COIL 47UH K L1020 9965 000 23990 CHOKE COIL 47UH K ALTERNATIVE L1350 4822 157 10649 100UH L1351 9965 000 15331 INDUCTOR 0 47UH K 26T L1522 9965 000 05705 INDUCTOR 47UH K 5FT L2001 4822 157 10649 100UH TRANSISTORS Q031 4822 130 63144 2SA1267 YG Q031 4822 130 11646 2SA1175J ALTERNATIVE Q031 9965 000 05644 2SA1175 F ALTERNATIVE Q052 9965 000 ...

Page 71: ... 276 13954 KSM0614B SW518 9965 000 19590 TC 1104 ALTERNATIVE DVD Open Close CBA MISCELLANEOUS SW2001 4822 276 13954 KSM0614B SW2001 9965 000 19590 TC 1104 ALTERNATIVE Sensor CBA TRANSISTORS Q503 9965 000 08630 PHOTO PT204 6B 12 Q504 9965 000 08630 PHOTO PT204 6B 12 Note Only the parts mentioned in this list are normal service spare parts TRANSISTORS ...

Page 72: ...L021 1B2 L0 9 L0 9 DVD Main CBA Unit Sensor CBA Sensor CBA A4 A5 AC1001 2B11 2B15 RM2001 DVD Open Close CBA Power SW CBA W001 W012 CN3001 CN3002 W011 2L091 2L054 A10 2L012 2L082 B Main CBA 2B13 2L021 2L062 A B A F1001 W003 A15 2B16 A1X A3 See Electrical Parts List for parts with this mark Some Ref Numbers are not in sequence 2L054 1 19 1 1 19 2 H9622CEX ...

Page 73: ...1 19 3 H9622PEX Packing Q U I C K S2 S2 S2 S2 S1 Unit S3 A14 X4 X20 X5 X2 X3 X17 X1 ...

Page 74: ...000 23962 DVDMECH FG LESS 0838 VCZL0500 A1X 9965 000 24108 FRONT ASSEMBLY H9622MD A22 9965 000 17140 CHASSIS FOOT H79P9JD A3 9965 000 24109 CHASSIS MEXICO H9622MD AC1001 9965 000 24119 AC CORD PB8K9F9110A 05A X1 9965 000 24111 REMOTE CONTROL UNIT 364 CZF05DD X3 9965 000 09209 RF CABLE WPZ0901TM001 X5 9965 000 24112 AV CORD TSCKA Y RW100 Note Only the parts mentioned in this list are normal service...

Page 75: ... 2 1 MECHANICAL ALIGNMENT PROCEDURES 2 3 1 DISASSEMBLY ASSEMBLY PROCEDURES OF DECK MECHANISM 2 4 1 ALIGNMENT PROCEDURES OF MECHANISM 2 5 1 DECK EXPLODED VIEWS 2 6 1 DECK PARTS LIST 2 7 1 Sec 2 Deck Mechanism Section I Standard Maintenance I Mechanism Alignment Procedures I Disassembly Assembly of Mechanism I Deck Exploded Views I Deck Parts List ...

Page 76: ...JUSTMENTS 3 For the reference numbers listed above refer to Deck Exploded Views h Hours Cleaning I Replace Deck Periodic Service Schedule Ref No Part Name 1 000 h 2 000 h 3 000 h 4 000 h B2 Cylinder Assembly I I B3 Loading Motor Assembly I B8 Pulley Assembly I I B587 Tension Lever Assembly I I B31 ACE Head Assembly I B573 B574 Reel SP D2 Reel TU D2 I B37 Capstan Motor I I B52 Cap Belt I I B73 FE H...

Page 77: ...hard material but since it is very thin avoid cleaning it vertically 2 Wait for the cleaned part to dry thoroughly before operating the unit 3 Do not reuse a stained head cleaning stick or a stained chamois cloth Cleaning of ACE Head Clean the head with a cotton swab Procedure 1 Remove the top cabinet 2 Dip the cotton swab in 90 isopropyl alcohol and clean the ACE Head Be careful not to damage the...

Page 78: ...t of ACE Head J 1 2 Alignment Tape VFMS0001H6 Azimuth and X Value Adjustment of ACE Head Adjustment of Envelope Waveform J 2 Guide Roller Adj Screwdriver Available Locally Guide Roller J 3 Mirror Available Locally Tape Transportation Check J 4 Azimuth Adj Screwdriver Available Locally ACE Head Height J 5 Flat Screwdriver Available Locally X Value ...

Page 79: ... that the Moving guide preparations are in the Eject Position 4 Turn the LDG Belt in the appropriate direction shown in Fig M1 until the Moving guide prepara tions come to the Eject Position Stop turning when the preparations begin clicking or can not be moved further However the tape will be left wound around the cylinder 5 Turn the LDG Belt in the appropriate direction con tinuously and the cass...

Page 80: ... there is no slack on the supply and take up side Guide Rollers Use a blank tape Adjust the height of the Guide Rollers Supply side and take up side Use a blank tape Page 2 3 3 Loading Use a blank tape Adjust the envelope Page 2 3 4 Check the envelope Adjust the Audio Section Azimuth Alignment Page 2 3 4 Check the audio output Check the following 1 X Value Page 2 3 3 2 Envelope Page 2 3 4 Adjust t...

Page 81: ...ACE Head Fig M6 1 B X Value Alignment Purpose To obtain maximum PB FM envelope signal at the pre set position of the Tracking Control Circuit align the Horizontal Position of the ACE Head Symptom of Misalignment If the Horizontal Position of the ACE Head is not prop erly aligned maximum PB FM envelope cannot be obtained at the preset position of the Tracking Control Circuit 1 Connect the oscillosc...

Page 82: ...becomes as flat as possible To do this adjust ment turn the top of the Guide Roller with the Guide Roller Adj Screwdriver 3 If the envelope is as shown in Fig M7 adjust the height of Guide Roller 2 Refer to Fig M3 so that the waveform looks like the one shown in Fig M9 4 If the envelope is as shown in Fig M8 adjust the height of Guide Roller 3 Refer to Fig M3 so that the waveform looks like the on...

Page 83: ...r of pushes to ensure preset position The number of pushes CH UP button to achieve 1 2 level of envelope should match the number of pushes CH DOWN button from center If required redo the X Value Alignment 1 E Checking and Alignment of Tape Path during reversing Purpose To make sure that the tape path is well stabilized dur ing reversing Symptom of Misalignment If the tape path is unstable during r...

Page 84: ...Cylinder Assembly T DM1 DM6 Desolder 3 S 2 8 8 Loading Motor Assembly T DM1 DM7 Desolder LDG Belt 2 S 3 9 9 ACE Head Assembly T DM1 DM7 S 4 10 2 Tape Guide Arm Assembly T DM1 DM8 1 P 2 11 10 C Door Opener T DM1 DM8 1 S 4A L 4 12 11 Pinch Arm B T DM1 DM8 1 DM8 2 P 3 13 12 Pinch Arm A Assembly T DM1 DM8 1 DM8 2 14 14 FE Head T DM1 DM9 S 5 15 15 Prism T DM1 DM9 S 6 16 2 15 Sensor Gear T DM1 DM9 17 2 ...

Page 85: ... lubrication 32 25 Loading Arm SP Assembly B DM2 DM14 Refer to Alignment Sec Page 2 5 1 33 32 Loading Arm TU Assembly B DM2 DM14 Refer to Alignment Sec Page 2 5 1 34 2 25 M Brake TU Assembly T DM1 DM15 P 7 Brake Belt 35 2 25 M Brake SP Assembly T DM1 DM15 P 8 36 35 Tension Lever Assembly T DM1 DM15 37 36 T Lever Holder T DM15 L 12 38 34 Reel TU D2 T DM1 DM15 39 38 M Gear T DM1 DM15 40 36 Reel SP D...

Page 86: ...2 4 3 U29PDA 14 13 11 10 12 7 8 30 40 16 39 38 42 41 43 9 34 15 36 35 29 Fig DM1 Top View 46 32 20 33 24 25 27 26 23 28 31 21 22 Bottom View Fig DM2 ...

Page 87: ... Pin D Pull up Slide 1 2 A 3 6 6 L 2 Pin A Hole A Pin B Hole B L 1 First insert 6 diagonally in 3 as shown below Then install 6 in 3 while pushing L 1 in a direction of arrow After installing 6 in 3 confirm that pin A of 3 enters hole A of 6 properly Installation of 3 and 6 View for A 2 1 4 Install 6 in 4 while pulling L 2 in a direction of arrow After installing 6 in 4 confirm that pin B of 4 ent...

Page 88: ...M7 A 8 9 S 4 S 3 LDG Belt 8 Pin of 12 Pin of 10 Groove of 28 View for A Fig DM8 1 When reassembling 10 and 12 confirm that pin of 10 and pin of 12 are in the groove of 28 as shown 28 11 13 12 A 10 L 4 S 4A P 3 P 2 Removal of 11 1 Remove screw S 4A 2 Unhook spring P 2 3 Release L 4 while holding 12 with a finger 4 Loosen a finger holding 12 and remove 11 ...

Page 89: ...r to Fig A Fig A 13 12 P 3 Fig B Top view Install pin of 12 in groove of 28 Refer to Fig B 28 Hold 12 and 13 till groove of pin of chassis looks and fit 13 in notch of chassis Then turn a few 13 while holding 12 Refer to Fig C Fig C Groove of pin of chassis Notch of chassis turn 13 12 Install 11 and 10 while holding 12 Refer to Fig DM8 1 Fig DM8 2 Fig DM9 14 15 S 6 S 5 16 Fig DM10 18 17 19 S 7 L 5...

Page 90: ... 5 28 When installing 23 install the spring P 5 to 28 as shown in the left figure and then install 23 while pressing the spring P 5 to the direction of the arrow in the left figure and confirming that the position of the spring P 5 is placed as shown in the left figure Pin on bottom of 23 23 28 Pin on 22 Position of pin on 22 Top View ...

Page 91: ... and 28 as shown Bottom View 28 25 28 Top View First tooth on 44 First groove on 28 Installation of 25 When reassembling 28 align the first groove on 28 to the first tooth on 44 as shown Fig DM13 2 Fig DM14 Refer to the Alignment Section Page 2 5 1 30 29 L 11 P 6 32 33 31 Fig DM15 turn turn Break belt 35 38 39 40 36 P 8 P 7 turn 34 37 L 12 ...

Page 92: ...2 4 9 U29PDA Fig DM16 43 41 42 Slide Plate S 11 L 13 Fig DM17 44 45 Slide ...

Page 93: ... the mechanical or electrical parts Alignment points in Eject Position Alignment 1 Loading Arm SP and TU Assembly Install Loading Arm SP and TU Assembly so that their triangle marks point to each other as shown in Fig AL2 Alignment 2 Mode Gear Keeping the two triangles pointing at each other install the Loading Arm SP Assembly so that the last tooth of the gear meets the most inside teeth of the M...

Page 94: ...D Blue grease SLIDUS OIL 150 B12 B492 B11 B571 B37 Some Ref Numbers are not in sequence B126 B8 B121 B426 B560 L1450 L1450 L1466 B501 L1322 B5 Chassis Assembly Top View Lubricating Point Chassis Assembly Bottom View Lubricating Point B410 B74 L1051 B35 B411 B494 B567 L1053 L1191 B73 B9 L1467 B553 B2 B10 ...

Page 95: ...FG84M Yellow grease B508 B414 View for A Grease point B516 B559 B52 B134 B133 B568 B593 B565 B417 Some Ref Numbers are not in sequence Bottom Side Grease point B507 B488 B570 B491 B513 B502 Bottom Side Grease point L1151 B525 B592 B31 L1406 B148 B558 B557 B3 B522 B521 B520 B590 B564 B573 B574 B591 B416 A B487 B499 B587 ...

Page 96: ...hanism View 3 Mark Description Floil G 684G or Multemp MH D Blue grease SLIDUS OIL 150 B563 B300 B562 B482 B355 B354 B483 B425 L1321 B347 L1321 B313 L1341 B303 B555 B514 Some Ref Numbers are not in sequence B361 B359 B529 B360 ...

Page 97: ...12 B494 9965 000 16659 C DOOR OPENER MK12 B499 9965 000 16660 T LEVER HOLDER MK12 B501 9965 000 16661 WORM HOLDER MK12 B502 9965 000 17200 CAM GEAR B MK12 B507 9965 000 05342 REEL WASHER MK9 5 2 1 0 5 B508 9965 000 08470 S BRAKE SPRING MK10 B513 9965 000 17201 CAM WASHER MK12 B514 9965 000 08641 SCREW RACK MK10 B516 9965 000 05342 REEL WASHER MK9 5 2 1 0 5 B520 9965 000 17202 TU BRAKE SPRING MK12 ...

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Philips DVP620VR/78, Service Manual

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