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20030425

3-4-2

HE451DPL

L1191

SCREW, S-TIGHT M2.6X8 WASHER HEAD+

GCMS9080

L1321

SCREW, S-TIGHT M3X6 BIND HEAD+

GBMS3060

L1341

SCREW, P-TIGHT 2X8 PAN HEAD +

GPMP2080

L1406

AC HEAD SCREW MK9

0VM410964

L1450

SCREW, SEMS M2.6X5 PAN HEAD+

CPM39050

L1466

SCREW, S-TIGHT M2.6X6 BIND HEAD+

GBMS9060

L1467

SCREW, S-TIGHT M2.6X5 WASHER HEAD+

GCMS9050

Ref. No.

Description

Part No.

Содержание 27A-664

Страница 1: ...vicing I Adjustment Procedures I Schematic Diagrams I CBA s Sec 2 Deck Mechanism Section I Standard Maintenance I Alignment for Mechanism I Disassembly Assembly of Mechanism I Alignment Procedures of...

Страница 2: ...Disassembly Instructions 1 5 1 Electrical Adjustment Instructions 1 6 1 Block Diagrams 1 7 1 Function Indicator Symbols 1 7 11 Schematic Diagrams CBA s and Test Points 1 8 1 Waveforms 1 9 1 Wiring Dia...

Страница 3: ...urst 1 4 Video Color S N AM R P dB 37 41 SP Mode 1 5 Video Color S N PM R P dB 30 36 SP Mode 1 6 Resolution PB Line 230 245 SP Mode 2 Servo 2 1 Jitter Low sec 0 07 0 12 SP Mode 2 2 Wow Flutter 0 3 0 5...

Страница 4: ...e 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...

Страница 5: ...arts 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 Po...

Страница 6: ...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 fla...

Страница 7: ...pins of the flat pack IC you can remove it easily Fig S 1 3 2 Affix the wire to a workbench or solid mounting point as shown in Fig S 1 5 3 While heating the pins using a fine tip soldering iron or ho...

Страница 8: ...cur due to a potential difference caused by electro static charge during unpacking or repair work 1 Ground for Human Body Be sure to wear a grounding band 1M that is prop erly grounded to remove any s...

Страница 9: ...e 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 TP507 SENSOR INHIBITION to GND This will stop the functio...

Страница 10: ...careful not to break them 1 Remove five Screws S 2 three Screws S 3 and Screw S 4 Then slowly lift the VCR Chassis Unit Deck Assembly Jack CBA and Main CBA up 2 When reassembling solder wire jumpers a...

Страница 11: ...1 5 2 HE450DC L 2 L 1 2 Front Assembly L 2 Fig 2 S 2 S 2 S 4 S 2 S 2 S 3 S 3 3 VCR Chassis Unit S 3 Fig 3 S 5 4 Jack CBA Desolder Fig 4...

Страница 12: ...bly From AC Head Assembly Lead with blue stripe Lead with blue stripe Desolder from bottom Lead with blue stripe From Capstan Motor Assembly Lead connections of Deck Assembly and Main CBA Printing sid...

Страница 13: ...oscope Dual trace with 10 1 probe V Range 0 001 50V Div F Range DC AC 20MHz 2 Alignment Tape FL6A Head Switching Position Adjustment Purpose To determine the Head Switching point during playback Sympt...

Страница 14: ...P DOWN L 67 66 86 P DOWN L C SYNC 58 SW506 FROM TO VIDEO BLOCK FROM TO Hi Fi AUDIO BLOCK TO AUDIO BLOCK 1 7 1 1 7 2 HE451BLS SDA SDA SCL SCL TU701 TUNER UNIT IC503 MEMORY 72 32 19 83 IIC BUS SCL D V S...

Страница 15: ...L MODE SP REC SERIAL DECORDER V OUT1 1 V IN1 1 3 3 V OUT2 1 V IN2 3 1 3 JACK CBA 48 50 52 56 24 6 50 55 52 19 20 JK101 V OUT1 V IN1 19 20 JK102 CL151 CL152 CL101 CL102 V OUT2 V IN2 61 63 96 95 93 94 9...

Страница 16: ...R IN2 IN1 R ALC DET ALC IC301 AUDIO SIGNAL PROCESS 15 13 17 4 A PB REC CL504 3 A COM 1 AE H 2 AE H FE H A PB REC 4 A COM 3 AE H 1 AE H FE H 2 CL287 AUDIO HEAD AUDIO ERASE HEAD ACE HEAD ASSEMBLY FE HEA...

Страница 17: ...2 L A IN2 R Hi Fi AUDIO SIGNAL PROCESS 9 A IN2 L 8 9 8 A OUT2 R 6 A OUT2 L 11 6 11 A IN1 R 10 A IN1 L 8 10 8 A OUT1 R 6 A OUT1 L 12 6 12 IC451 1 7 7 1 7 8 Hi Fi AUDIO R HEAD Hi Fi AUDIO L HEAD CYLINDE...

Страница 18: ...all components in the power supply circuit are not defective before you connect the AC plug to the AC power supply Otherwise it may cause some components in the power supply circuit to fail HE451BLP...

Страница 19: ...88 88 ON POWER ON PWR ON REC REC ON REC PAUSE REC Blinks at 0 8Hz interval T REC OTR ON T REC OFF T REC incomplete Blinks at 0 8Hz interval When reel and capstan mechanism is not functioning correctly...

Страница 20: ...fully The use of substitute replacement parts that do not have the same safety characteristics as speci fied in the parts list may create shock fire or other hazards Capacitor Temperature Markings Not...

Страница 21: ...only original replacement parts which are listed with their part numbers in the parts list section of the service manual 4 Wire Connectors 1 Prefix symbol CN means connector can disconnect and reconn...

Страница 22: ...Main 1 7 Schematic Diagram 1 8 3 1 8 4 HE451SCM1...

Страница 23: ...Main 2 7 Sensor Schematic Diagram 1 8 5 1 8 6 HE451SCM2...

Страница 24: ...Main 3 7 Schematic Diagram 1 8 7 1 8 8 HE451SCM3...

Страница 25: ...Main 4 7 Jack Schematic Diagram 1 8 9 1 8 10 HE451SCM4...

Страница 26: ...st fire hazard replace only with the same type fuse CAUTION Fixed voltage or Auto voltage selectable power supply circuit is used in this unit If Main Fuse F1001 is blown check to see that all compone...

Страница 27: ...Main 6 7 Schematic Diagram 1 8 13 1 8 14 HE451SCM6...

Страница 28: ...Main 7 7 Schematic Diagram 1 8 15 1 8 16 HE451SCM7...

Страница 29: ...1 8 17 1 8 18 AFV Schematic Diagram HE451SCAFV...

Страница 30: ...TROUBLESHOOTING THIS TYPE POWER SUPPLY CIRCUIT A VARIABLE ISOLATION TRANSFORMER IS REQUIRED BHB300F01014 A BHB300F01014 B Sensor CBA Top View BHE470F01013 A CAUTION For continued protection against fi...

Страница 31: ...N TROUBLESHOOTING THIS TYPE POWER SUPPLY CIRCUIT A VARIABLE ISOLATION TRANSFORMER IS REQUIRED CAUTION For continued protection against fire hazard replace only with the same type fuse CAUTION Fixed vo...

Страница 32: ...1 8 23 1 8 24 Jack CBA Top View Jack CBA Bottom View BHE470F01013 C...

Страница 33: ...1 8 25 1 8 26 AFV CBA Top View AFV CBA Bottom View BHC400F01091 Sub Jack CBA Top View Sub Jack CBA Bottom View BHE470F01013 B...

Страница 34: ...V OUT E E 10usec 50mV x 10 J23 of Main CBA WF3 UPPER WF1 LOWER V OUT 0 1V x 10 RF SW 0 5V x 10 50usec J23 of Main CBA TP502 of Main CBA WF2 C PB 10mV x 10 RF SW 0 5V x 10 5msec UPPER LOWER WF1 TP502 o...

Страница 35: ...5 6 7 8 9 10 11 12 CL151 CL101 CAPSTAN MOTOR FULL ERASE HEAD FE HEAD VIDEO R 1 HEAD VIDEO L 1 HEAD SIF 1 NU 2 TU AUDIO R 3 GND 4 TU AUDIO L 5 P ON 5V 6 P ON 5V 7 IIC BUS SCL 8 IIC BUS SDA 9 1 2 3 4 5...

Страница 36: ...ead Switching Pulse H L 19 OUT HiFi H SW HiFi Audio Head Switching Pulse H L 20 IN DAVN L VPS PDC Data Receive L L 21 N U Not Used 22 N U Not Used 23 N U Not Used 24 N U Not Used 25 N U Not Used 26 N...

Страница 37: ...nal PWM 78 OUT C F R Capstan Motor FWD REV Control Signal FWD L REV H H L 79 IN S REEL Supply Reel Rotation Signal PUL SE 80 IN T REEL Take Up Reel Rotation Signal PUL SE 81 OUT LM FWD REV Loading Mot...

Страница 38: ...TPE2 2SC3266 Y TPE2 2SC2120 Y TPE2 KTC3203 Y 2SC1815 BL TPE2 2SA1020 Y KTC3205 Y 2SA1015 GR TPE2 E C B E C PT204 6B 12 MID 32A22 5 4 8 1 CAT24WC02JI BR24C02F W B1 E B2 C1 C2 RN1511 TE85R FMG4A T148 K...

Страница 39: ...Fixtures and Tools 2 2 1 Mechanical Alignment Procedures 2 3 1 Disassembly Assembly Procedures of Deck Mechanism 2 4 1 Alignment Procedures of Mechanism 2 4 8 Sec 2 Deck Mechanism Section I Standard M...

Страница 40: ...ploded Views B73 Recording Model only H Hours Check I Change 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 Pul...

Страница 41: ...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...

Страница 42: ...ignment Tape FL6N8 1 speed only FL6NS8 2 speed only Azimuth and X Value Adjustment of Audio Control Head Adjustment of Envelope Waveform J 2 Guide Roller Adj Screwdriver Available Locally Guide Roller...

Страница 43: ...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 turni...

Страница 44: ...the X value and envelope Not good Do the final tape traveling test to see that the tape runs normally in play mode with out creasing or slacking Completion Not good OK OK OK Not good Not good OK Flowc...

Страница 45: ...ition of the Audio Control Erase Head Symptom of Misalignment If the Horizontal Position of the Audio Control Erase Head is not properly aligned maximum envelope can not be obtained at the Neutral pos...

Страница 46: ...f 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 wavefor...

Страница 47: ...1 DM6 Desolder 3 S 2 8 8 Loading Motor Assembly T DM1 DM7 Desolder LDG Belt 2 S 3 9 9 AC Head Assembly T DM1 DM7 S 4 10 2 Tape Guide Arm Assembly T DM1 DM8 P 2 11 10 C Door Opener T DM1 DM8 L 4 12 11...

Страница 48: ...bly HI is not used in 2 head model 34 26 Loading Arm SP Assembly B DM2 DM14 Refer to Alignment Sec Pg 2 4 8 35 34 Loading Arm TU Assembly B DM2 DM14 Refer to Alignment Sec Pg 2 4 8 36 16 26 M Brake TU...

Страница 49: ...2 4 3 U27HSPAL2DA 14 13 11 10 12 7 49 8 32 43 41 40 31 42 45 44 46 9 36 15 38 37 Fig DM1 Top View 34 19 35 25 26 24 23 27 33 20 28 22 Fig DM2 Bottom View...

Страница 50: ...slide and pull up the right side on 2 to release Pin A and Pin B from the slots A Then remove Pin C and Pin D on 2 from the slots B as shown 2 Pin A Slots B Pin C Pin B Pin D Pull up Slide Slot A Slot...

Страница 51: ...te Stripe A 8 9 S 4 S 3 LDG Belt Fig DM8 11 13 12 A 10 L 4 Adj Screw P 3 P 2 27 When reassembling 10 and 12 confirm that pin of 10 and pin of 12 are in the groove of 27 as shown Pin of 12 Pin of 10 Gr...

Страница 52: ...Fig DM13 Align 26 and 27 as shown Bottom View 27 Pin of 36 Pin of 33 Position of Mode Lever when installed Pin of 37 26 When reassembling 27 meet the first groove on 27 to the first tooth on 44 as sh...

Страница 53: ...2 4 7 U27HSPAL2DA Refer to the Alignment Section Page 2 4 8 Fig DM14 33 32 L 9 P 5 34 35 Fig DM15 37 39 turn turn 42 43 38 P 6 turn 36 L 10 40 41 C 6 C 7 Fig DM16 44 45 46 L 11 47 48 Slide Fig DM17...

Страница 54: ...e 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 a...

Страница 55: ...SECTION VIDEO CASSETTE RECORDER 27A 664 TABLE OF CONTENTS Exploded Views 3 1 1 Mechanical Parts List 3 2 1 Electrical Parts List 3 3 1 Deck Parts List 3 4 1 Sec 3 Exploded views and Parts List Section...

Страница 56: ...3 1 1 HE450FEX A1X EXPLODED VIEWS Front Panel...

Страница 57: ...42 2L012 2B18 2B9 2B9 1B1 2L021 2L021 2L021 2L021 2L021 A2 2L011 2L011 2L011 2L011 2L011 A7 A3 A10 JACK CBA A5 2L031 2L099 2L041 2L041 MAIN CBA 2L041 2B7 2B8 2B46 SENSOR CBA SENSOR CBA 2B5 2L051 AFV C...

Страница 58: ...3 1 3 HE451PEX Some Ref Numbers are not in sequence X2 X3 X20B X20A X1 X4 S1 Unit S3 A14 S2 S2 Packing...

Страница 59: ...t Chassis Assembly Bottom View Lubricating Point B2 B35 B410 B411 B494 B567 L1053 B74 B10 L1191 B73 B9 B12 B492 B11 B571 B37 B126 L1466 B501 B8 B121 L1450 L1450 L1051 L1467 B553 B86 Mark Description F...

Страница 60: ...1 B565 L1151 B525 B592 B31 L1406 B148 B521 B590 B487 B573 B574 B499 B587 B508 B558 B557 B3 B417 B584 B591 Mark Description Floil G 684G or Multemp MH D Blue grease SLIDUS OIL 150 B522 B414 B416 B518 B...

Страница 61: ...5 B563 B300 B562 B482 L1341 B355 B354 B483 B425 L1321 B347 L1321 B361 B359 B529 B360 B514 B313 Some Ref Numbers are not in sequence Mark Description Floil G 684G or Multemp MH D Blue grease SLIDUS OIL...

Страница 62: ...70ED See Electrical Parts List 2B8 BUSH LED F H3700UD See Electrical Parts List 2B9 CUSHION HC460ED 0VM413251 2B18 FIBER TOP CASE HC460ED 0VM412906 2B46 ROHM HOLDER H7770JD See Electrical Parts List 2...

Страница 63: ...6V M H7 CE1CMAVSL100 C061 CHIP CERAMIC CAP F Z 0 1 F 50V or CHD1JZ30F104 CHIP CERAMIC CAP F Z 0 1 F 25V or CHD1EZ30F104 CHIP CERAMIC CAP FZ Z 0 1 F 50V CHD1JZ3FZ104 C157 ELECTROLYTIC CAP 1 F 50V M H7...

Страница 64: ...3pF 50V CHD1JJ3CG330 C419 CHIP CERAMIC CAP B K 4700pF 50V CHD1JK30B472 Ref No Description Part No C421 ELECTROLYTIC CAP 33 F 6 3V M H7 CE0KMAVSL330 C422 ELECTROLYTIC CAP 4 7 F 25V M H7 CE1EMAVSL4R7 C4...

Страница 65: ...JZ30F104 CHIP CERAMIC CAP F Z 0 1 F 25V or CHD1EZ30F104 CHIP CERAMIC CAP FZ Z 0 1 F 50V CHD1JZ3FZ104 C564 CHIP CERAMIC CAP CH J 100pF 50V or CHD1JJ3CH101 CHIP CERAMIC CAP CG J 100pF 50V CHD1JJ3CG101 R...

Страница 66: ...BD00PKV007 CHOKE COIL 47 H K LLBD00PKV005 L010 CHOKE COIL 47 H K or LLBD00PKV007 Ref No Description Part No CHOKE COIL 47 H K LLBD00PKV005 L012 INDUCTOR 100 H J 5FT LLARJCSTU101 L251 INDUCTOR 5 6 H K...

Страница 67: ...2 CARBON RES 1 4W J 1k RCX4JATZ0102 R028 CARBON RES 1 4W J 1M RCX4JATZ0105 Ref No Description Part No R053 PCB JUMPER D0 6 P5 0 JW5 0T R054 CHIP RES 1608 1 10W J 180 RRXAJR5Z0181 R058 CARBON RES 1 6W...

Страница 68: ...100 RRXAJR5Z0101 R501 CHIP RES 1608 1 10W J 1k RRXAJR5Z0102 R502 CHIP RES 1608 1 10W J 1k RRXAJR5Z0102 Ref No Description Part No R503 CHIP RES 1608 1 10W J 1k RRXAJR5Z0102 R504 CHIP RES 1608 1 10W J...

Страница 69: ...M414333 2B8 BUSH LED F H3700UD 0VM409508 2B46 ROHM HOLDER H7770JD 0VM304573 A4 JACK BOARD U27 FTZ HE480ED 0VM203840 AC001 AC CORD PE8B2CG1H0A 057 WAE0172LW003 F001 FUSE T1 6AL 250V or PAGC20BW3162 FUS...

Страница 70: ...LLANEOUS 2L022 SCREW P TIGHT M3X10 WASHER HEAD GCMP3100 A5 JACK BOARD 2 21P HE470ED 0VM203835 JK101 RGB CONNECTOR MRC 021V 01 JXGL210LY002 JK102 RGB CONNECTOR MRC 021V 01 JXGL210LY002 Ref No Descripti...

Страница 71: ...R 10 H K 26T LLAXKATTU100 RESISTORS R1 CHIP RES 1608 1 10W J 1k RRXAJR5Z0102 R4 CHIP RES 1608 1 10W J 120k RRXAJR5Z0124 R5 CHIP RES 1608 1 10W 0 RRXAZR5Z0000 R6 CHIP RES 1608 1 10W 0 RRXAZR5Z0000 MISC...

Страница 72: ...SSEMBLY 4 MK12 or 0VSA13572 PINCH ARM A ASSEMBLY 5 MK12 0VSA13788 B411 PINCH SPRING MK12 0VM414644 B414 M BRAKE SP ASSEMBLY HI MK12 0VSA13655 B416 M BRAKE TU ASSEMBLY HI MK12 0VSA13449 B417 TENSION SP...

Страница 73: ...SCREW S TIGHT M3X6 BIND HEAD GBMS3060 L1341 SCREW P TIGHT 2X8 PAN HEAD GPMP2080 L1406 AC HEAD SCREW MK9 0VM410964 L1450 SCREW SEMS M2 6X5 PAN HEAD CPM39050 L1466 SCREW S TIGHT M2 6X6 BIND HEAD GBMS90...

Страница 74: ...27A 664 HE451ED...

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