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FUNAI 27C-450, Service Manual

The FUNAI 27C-450 is a high-performance TV that promises an immersive viewing experience. Unlock the full potential of this device with the comprehensive Service Manual available for free download on our website. This manual offers step-by-step instructions and troubleshooting tips to enhance your product usage. {Website} is your go-to destination for user manuals.

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20030805

3-3-6

HE341EL

R407

CARBON RES. 1/6W J 820 

Ω

 or

RCX6JATZ0821

CARBON RES. 1/4W J 820 

Ω

RCX4JATZ0821

R408

CHIP RES.(1608) 1/10W J 12k 

Ω

RRXAJR5Z0123

R409

CHIP RES.(1608) 1/10W J 5.6k 

Ω

RRXAJR5Z0562

R411

CHIP RES.(1608) 1/10W J 1k 

Ω

RRXAJR5Z0102

R412

CHIP RES.(1608) 1/10W J 27k 

Ω

RRXAJR5Z0273

R413

CHIP RES.(1608) 1/10W J 330k 

Ω

RRXAJR5Z0334

R414

CHIP RES.(1608) 1/10W J 120 

Ω

RRXAJR5Z0121

R415

CHIP RES.(1608) 1/10W J 12k 

Ω

RRXAJR5Z0123

R416

CHIP RES.(1608) 1/10W J 1.8k 

Ω

RRXAJR5Z0182

R417

CHIP RES.(1608) 1/10W J 1.2k 

Ω

RRXAJR5Z0122

R418

CHIP RES.(1608) 1/10W 0 

Ω

RRXAZR5Z0000

R421

CHIP RES.(1608) 1/10W J 12k 

Ω

RRXAJR5Z0123

R422

CHIP RES.(1608) 1/10W J 10k 

Ω

RRXAJR5Z0103

R423

CHIP RES.(1608) 1/10W J 22k 

Ω

RRXAJR5Z0223

R424

CHIP RES.(1608) 1/10W J 3.9k 

Ω

RRXAJR5Z0392

R425

CHIP RES.(1608) 1/10W J 68k 

Ω

RRXAJR5Z0683

R426

CHIP RES.(1608) 1/10W J 12k 

Ω

RRXAJR5Z0123

R427

CHIP RES.(1608) 1/10W J 68k 

Ω

RRXAJR5Z0683

R428

CHIP RES.(1608) 1/10W J 12k 

Ω

RRXAJR5Z0123

R429

CHIP RES.(1608) 1/10W J 2.2k 

Ω

RRXAJR5Z0222

R501

CHIP RES.(1608) 1/10W J 1k 

Ω

RRXAJR5Z0102

R502

CHIP RES.(1608) 1/10W J 1k 

Ω

RRXAJR5Z0102

R503

CHIP RES.(1608) 1/10W J 1k 

Ω

RRXAJR5Z0102

R504

CHIP RES.(1608) 1/10W J 10k 

Ω

RRXAJR5Z0103

R505

CHIP RES.(1608) 1/10W J 10k 

Ω

RRXAJR5Z0103

R506

CHIP RES.(1608) 1/10W J 10k 

Ω

RRXAJR5Z0103

R509

CHIP RES.(1608) 1/10W J 4.7k 

Ω

RRXAJR5Z0472

R511

CHIP RES.(1608) 1/10W J 100k 

Ω

RRXAJR5Z0104

R513

CHIP RES.(1608) 1/10W J 1.8k 

Ω

RRXAJR5Z0182

R514

CHIP RES.(1608) 1/10W J 820 

Ω

RRXAJR5Z0821

R515

CARBON RES. 1/6W J 1k 

Ω

 or

RCX6JATZ0102

CARBON RES. 1/4W J 1k 

Ω

RCX4JATZ0102

R516

CHIP RES.(1608) 1/10W J 330k 

Ω

RRXAJR5Z0334

R517

CHIP RES.(1608) 1/10W J 560 

Ω

RRXAJR5Z0561

R518

CHIP RES.(1608) 1/10W J 470 

Ω

RRXAJR5Z0471

R520

CHIP RES.(1608) 1/10W J 10k 

Ω

RRXAJR5Z0103

R521

CHIP RES.(1608) 1/10W J 220k 

Ω

RRXAJR5Z0224

R522

CHIP RES.(1608) 1/10W J 39k 

Ω

RRXAJR5Z0393

R523

CHIP RES.(1608) 1/10W J 10k 

Ω

RRXAJR5Z0103

R524

CHIP RES.(1608) 1/10W J 10k 

Ω

RRXAJR5Z0103

R525

CHIP RES.(1608) 1/10W J 1.5k 

Ω

RRXAJR5Z0152

R526

CHIP RES.(1608) 1/10W J 1.8k 

Ω

RRXAJR5Z0182

R527

CHIP RES.(1608) 1/10W J 680 

Ω

RRXAJR5Z0681

R528

CHIP RES.(1608) 1/10W J 18k 

Ω

RRXAJR5Z0183

R529

CARBON RES. 1/4W J 270 

Ω

RCX4JATZ0271

R530

CHIP RES.(1608) 1/10W J 180 

Ω

RRXAJR5Z0181

R531

CHIP RES.(1608) 1/10W J 68k 

Ω

RRXAJR5Z0683

R533

CHIP RES.(1608) 1/10W J 33k 

Ω

RRXAJR5Z0333

R534

CARBON RES. 1/6W G 3.6k 

Ω

 or

RCX6GATZ0362

CARBON RES. 1/4W G 3.6k 

Ω

RCX4GATZ0362

R535

CARBON RES. 1/6W G 10k 

Ω

 or

RCX6GATZ0103

CARBON RES. 1/4W G 10k 

Ω

RCX4GATZ0103

R536

CARBON RES. 1/6W G 470 

Ω

 or

RCX6GATZ0471

CARBON RES. 1/4W G 470 

Ω

RCX4GATZ0471

R537

CARBON RES. 1/6W G 22k 

Ω

 or

RCX6GATZ0223

CARBON RES. 1/4W G 22k 

Ω

RCX4GATZ0223

R538

CARBON RES. 1/6W G 1.5k 

Ω

 or

RCX6GATZ0152

CARBON RES. 1/4W G 1.5k 

Ω

RCX4GATZ0152

R539

CARBON RES. 1/6W G 4.7k 

Ω

 or

RCX6GATZ0472

CARBON RES. 1/4W G 4.7k 

Ω

RCX4GATZ0472

Ref. No.

Description

Part No.

R540

CHIP RES.(1608) 1/10W J 390k 

Ω

RRXAJR5Z0394

R541

CHIP RES.(1608) 1/10W J 390k 

Ω

RRXAJR5Z0394

R542

CHIP RES.(1608) 1/10W J 1.8k 

Ω

RRXAJR5Z0182

R543

CHIP RES.(1608) 1/10W J 1k 

Ω

RRXAJR5Z0102

R544

CHIP RES.(1608) 1/10W J 2.7k 

Ω

RRXAJR5Z0272

R545

CHIP RES.(1608) 1/10W J 2.2k 

Ω

RRXAJR5Z0222

R546

CHIP RES.(1608) 1/10W J 12k 

Ω

RRXAJR5Z0123

R547

CHIP RES.(1608) 1/10W J 1.8k 

Ω

RRXAJR5Z0182

R548

CHIP RES.(1608) 1/10W J 1k 

Ω

RRXAJR5Z0102

R549

CHIP RES.(1608) 1/10W J 1.2k 

Ω

RRXAJR5Z0122

R551

CHIP RES.(1608) 1/10W J 100 

Ω

RRXAJR5Z0101

R552

CHIP RES.(1608) 1/10W J 10k 

Ω

RRXAJR5Z0103

R561

CARBON RES. 1/6W J 330 

Ω

 or

RCX6JATZ0331

CARBON RES. 1/4W J 330 

Ω

RCX4JATZ0331

R562

CARBON RES. 1/6W J 330 

Ω

 or

RCX6JATZ0331

CARBON RES. 1/4W J 330 

Ω

RCX4JATZ0331

R563

CARBON RES. 1/4W J 270 

Ω

RCX4JATZ0271

R564

CARBON RES. 1/6W J 330 

Ω

 or

RCX6JATZ0331

CARBON RES. 1/4W J 330 

Ω

RCX4JATZ0331

R565

CARBON RES. 1/6W J 330 

Ω

 or

RCX6JATZ0331

CARBON RES. 1/4W J 330 

Ω

RCX4JATZ0331

R567

CHIP RES.(1608) 1/10W J 3.9k 

Ω

RRXAJR5Z0392

R568

CHIP RES.(1608) 1/10W J 3.9k 

Ω

RRXAJR5Z0392

R569

CHIP RES.(1608) 1/10W J 3.9k 

Ω

RRXAJR5Z0392

R570

CHIP RES.(1608) 1/10W J 3.9k 

Ω

RRXAJR5Z0392

R602

CHIP RES.(1608) 1/10W J 10k 

Ω

RRXAJR5Z0103

R603

CHIP RES.(1608) 1/10W J 10k 

Ω

RRXAJR5Z0103

R606

CHIP RES.(1608) 1/10W J 10k 

Ω

RRXAJR5Z0103

R612

CHIP RES.(1608) 1/10W J 10k 

Ω

RRXAJR5Z0103

R613

CHIP RES.(1608) 1/10W J 10k 

Ω

RRXAJR5Z0103

R624

CHIP RES.(1608) 1/10W 0 

Ω

RRXAZR5Z0000

R625

CHIP RES.(1608) 1/10W J 10k 

Ω

RRXAJR5Z0103

R701

CARBON RES. 1/6W J 1.8k 

Ω

 or

RCX6JATZ0182

CARBON RES. 1/4W J 1.8k 

Ω

RCX4JATZ0182

R702

CARBON RES. 1/6W J 1k 

Ω

 or

RCX6JATZ0102

CARBON RES. 1/4W J 1k 

Ω

RCX4JATZ0102

R703

CARBON RES. 1/6W J 1k 

Ω

 or

RCX6JATZ0102

CARBON RES. 1/4W J 1k 

Ω

RCX4JATZ0102

R706

CHIP RES.(1608) 1/10W J 1k 

Ω

RRXAJR5Z0102

R851

CHIP RES.(1608) 1/10W J 1.5k 

Ω

RRXAJR5Z0152

R852

CHIP RES.(1608) 1/10W J 1k 

Ω

RRXAJR5Z0102

R853

CHIP RES.(1608) 1/10W J 1k 

Ω

RRXAJR5Z0102

SWITCHES

SW501

TACT SWITCH KSM0614B or

SST0101HH013

TACT SWITCH SKQSAF001A or

SST0101AL041

TACT SWITCH TC-1104(H=9.5)

SST0101DNG01

SW502

TACT SWITCH KSM0614B or

SST0101HH013

TACT SWITCH SKQSAF001A or

SST0101AL041

TACT SWITCH TC-1104(H=9.5)

SST0101DNG01

SW503

TACT SWITCH KSM0614B or

SST0101HH013

TACT SWITCH SKQSAF001A or

SST0101AL041

TACT SWITCH TC-1104(H=9.5)

SST0101DNG01

SW504

TACT SWITCH KSM0614B or

SST0101HH013

TACT SWITCH SKQSAF001A or

SST0101AL041

TACT SWITCH TC-1104(H=9.5)

SST0101DNG01

SW505

TACT SWITCH KSM0614B or

SST0101HH013

TACT SWITCH SKQSAF001A or

SST0101AL041

TACT SWITCH TC-1104(H=9.5)

SST0101DNG01

SW506

LEAF SWITCH MXS01830MVP0

SSC0101MCE03

SW507

ROTARY MODE SWITCH SSS-50MD or

SSR0106KB002

ROTARY MODE SWITCH R8100245

SSR0106U3002

Ref. No.

Description

Part No.

Summary of Contents for 27C-450

Page 1: ...cing 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 Mechanism Sec 3 Exploded views and Parts List Section I Exploded views I Parts List 27C 450 SECAM PAL ...

Page 2: ...t Disassembly Instructions 1 5 1 Electrical Adjustment Instructions 1 6 1 Block Diagrams 1 7 1 Function Indicator Symbols 1 7 9 Schematic Diagrams CBA s and Test Points 1 8 1 Waveforms 1 9 1 Wiring Diagrams 1 10 1 IC Pin Function Descriptions 1 11 1 Lead Identifications 1 12 1 Sec 1 Main Section I Specifications I Preparation for Servicing I Adjustment Procedures I Schematic Diagrams I CBA s ...

Page 3: ... Vp p 0 8 1 0 1 2 1 3 Video S N Y R P dB 40 45 SP Mode W O Burst 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 µsec 0 07 0 12 SP Mode 2 2 Wow Flutter 0 3 0 5 SP Mode 3 Normal Audio 3 1 Output PB dBV 9 6 3 SP Mode 3 2 Output R P dBV 9 6 1 5 SP Mode 3 3 S N R P dB 36 41 SP Mode 3 4 Distortion R P ...

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: ... 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 Fig 2 and the following table AC Line Volt...

Page 6: ...e 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 zers Fig S 1 6 Caution 1 Do not supply hot air to the chip parts around the flat pac...

Page 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 hot air blower pull up the wire as the solder melts so as to lift the IC leads from the CBA contact pads as shown in Fig S 1 5 4 Bottom of the flat pack IC is fixed with glue to the CBA when removing e...

Page 8: ...ur 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 1MΩ that is prop erly grounded 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 ...

Page 9: ...he 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 function of Tape Start Sensor Tape End Sensor and Reel Sensors If these TPs are con nected before plugging in the unit the function of the sensors will stay valid See Fig 1 Note Because the Tape End Sensors...

Page 10: ... 2 are fragile Be careful not to break them 1 Remove five Screws S 2 two 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 as shown in Fig 5 3 Before installing the Deck Assembly be sure to place the pin of LD SW on Main CBA as shown in Fig 6 Then install the Deck Assembly while align ing the hole of Cam Ge...

Page 11: ...1 5 2 HE240DC 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 Fig 3 S 5 4 Jack CBA Desolder Fig 4 ...

Page 12: ...der Assembly 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 side 7 Cylinder Shield Fig 5 LD SW Pin Hole Hole Shaft Cam Gear 6 Main CBA 5 Deck Assembly 6 Main CBA SW507 LD SW Pin Fig 6 ...

Page 13: ...loscope 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 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...

Page 14: ...1 7 1 1 7 2 HE341BLS SDA SDA SCL SCL TU701 TUNER UNIT IC503 MEMORY 72 83 IIC BUS SCL D V SYNC D REC H RF SW C ROTA IIC BUS SDA V ENV C SYNC 16 H A SW 17 H A COMP 65 TRICK H 61 SECAM H H A SW H A COMP TRICK H SECAM H IIC BUS SCL 71 3 5 SDA SCL 12 11 CAS LED TIMER LED REC LED 26 25 24 POWER LED 23 D565 REC D564 TIMER D563 CAS D562 POWER D561 STAND BY 5V LD SW 9 AL 12V 20 5V P ON 15V AL 5V AL 5V SW50...

Page 15: ...ELAY BYPASS MUTE PB EE IN1 TUNER IN1 TUNER MUTE PB EE IN2 IN2 AGC P R R Y C P R P R P Y DELAY Y C MIX 21 79 78 AGC VXO OSD CHARACTER MIX FBC 1 2 58 59 65 29 28 69 68 46 43 67 84 62 70 D REC H 80 BUFFER Q101 BUFFER Q102 J23 V OUT WF1 TP301 X301 4 433619MHz C PB WF3 VIDEO OUT VIDEO IN BUFFER Q351 MAIN CBA TP502 RF SW WF2 55 COLOR IN TO SERVO SYSTEM CONTROL BLOCK IIC BUS SDA IIC BUS SCL EP HEAD AMP S...

Page 16: ...PB REC 4 A COM 3 AE H 1 AE H FE H 2 CL287 AUDIO HEAD AUDIO ERASE HEAD ACE HEAD ASSEMBLY FE HEAD 2 FE H 1 FE H GND CL501 1 7 5 1 7 6 HE341BLA MAIN CBA PB AUDIO SIGNAL REC AUDIO SIGNAL Mode SP REC 71 A MUTE H AUDIO SW 1 AUDIO SW 2 IIC BUS SCL IIC BUS SDA TO SERVO SYSTEM CONTROL BLOCK TO SERVO SYSTEM CONTROL BLOCK FULL ERASE HEAD 68 69 SERIAL DECODER DECK ASSEMBLY 12 16 INV ATT A IN1 A OUT1 8 6 JACK ...

Page 17: ... that 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 HE341BLP 1 7 7 1 7 8 COLD MAIN CBA HOT CIRCUIT BE CAREFUL HOT IC001 ERROR VOLTAGE DET Q002 Q003 Q001 F001 L003 LINE FILTER BRIDGE RECTIFIER D001 D004 1 2 3 4 Q004 AC001 T001 P ON 32V P ON 15V 12 P ON H AL...

Page 18: ...ASSETTE 1 When reel and capstan mechanism is not functioning correctly 2 When tape loading mechanism is not functioning correctly 3 When cassette loading mechanism is not functioning correctly 4 When the drum is not working properly Cassette in H Cassette out L Cassette in Cassette in Cassette in Cassette in Blinks at 0 8Hz interval Blinks at 1 6Hz interval Blinks at 3 2Hz interval Blinks at 6 4Hz...

Page 19: ...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 Notes 1 Do not use the part number shown on these draw ings for ordering The correct part number is shown in the parts list and may be slightly different or amended since these drawings were prepared 2 A...

Page 20: ...e 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 reconnect 2 Prefix symbol CL means wire solder holes of the PCB wire is soldered directly 5 Mode SP REC 6 Voltage indications for PLAY and REC modes on the schematics are as shown below 7 How to read conve...

Page 21: ...Main 1 6 Schematic Diagram 1 8 3 1 8 4 HE341SCM1 ...

Page 22: ...Main 2 6 Sensor Schematic Diagram 1 8 5 1 8 6 HE341SCM2 ...

Page 23: ...Main 3 6 Schematic Diagram 1 8 7 1 8 8 HE341SCM3 ...

Page 24: ...Main 4 6 Jack Schematic Diagram 1 8 9 1 8 10 HE341SCM4 ...

Page 25: ...nst 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 F001 is blown 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 Otherwise it may cause some components in the power supply circuit to fail ...

Page 26: ...HE341SCM6 1 8 13 1 8 14 Main 6 6 Schematic Diagram ...

Page 27: ... TROUBLESHOOTING THIS TYPE POWER SUPPLY CIRCUIT A VARIABLE ISOLATION TRANSFORMER IS REQUIRED BHB300F01014 A BHB300F01014 B Sensor CBA Top View BHE470F01014 A CAUTION For continued protection against 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 F001 is blown check to see that all components i...

Page 28: ...HEN 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 voltage or Auto voltage selectable power supply circuit is used in this unit If Main Fuse F001 is blown check to see that all components in the power supply circuit are not defective before you connec...

Page 29: ...1 8 19 1 8 20 Jack CBA Top View Jack CBA Bottom View BHE470F01014 C ...

Page 30: ... 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 of Main CBA TP301 of Main CBA ...

Page 31: ...4 GND 1 V OUT1 2 AL 12V 1 3 V IN1 4 NU 5 A OUT1 6 JK1 8P OUT 7 A IN1 8 1 2 3 4 5 6 7 8 CL151 JW002 JW001 CL101 CAPSTAN MOTOR FULL ERASE HEAD FE HEAD GND 1 V OUT2 2 NU 3 V IN2 4 GND 5 A OUT2 6 SC2 IN 7 A IN2 8 1 2 3 4 5 6 7 8 CL152 CL102 AC CORD ANT IN ANT OUT M DRUM MOTOR PG SENSOR MAIN CBA 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 JACK CBA BHE470F01014C BHE470F01014A JK101 JK102 DECK ...

Page 32: ...ing Pulse H L 19 N U Not Used 20 N U Not Used 21 N U Not Used 22 N U Not Used 23 OUT POWER LED POWER LED Signal Output H 24 OUT CAS LED CASSETTE LED Sig nal Output H 25 OUT TIMER LED TIMER LED Signal Output H 26 OUT REC LED Recording LED Control Signal 27 N U Not Used 28 N U Not Used 29 OUT AUDIO SW 1 Audio IN OUT Control Signal H L 30 OUT AUDIO SW 2 Audio IN OUT Control Signal H L 31 IN REC SAF S...

Page 33: ...ignal 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 PULSE 80 IN T REEL Take Up Reel Rotation Signal PULSE 81 OUT LM FWD REV Loading Motor Control Signal H L Hi z 82 N U Not Used Pin No IN OUT Signal Name Function Active Level 83 OUT A MUTE H Audio Mute Control Signal Mute H H 84 OUT FF REW L CTL Frequency Characteristics Switching Si...

Page 34: ...03M KRA104M KTA1281 Y 2SC1815 BL TPE2 2SC1815 Y TPE2 2SC1815 GR TPE2 2SC2120 Y TPE2 KTC3203 Y 2SA1020 Y 2SA1015 GR TPE2 E C B E C PT204 6B 12 MID 32A22 5 4 8 1 CAT24WC02JI BR24C02F W CD4052BCSJX BU4052BCF E2 TC4052BF EL 1 8 16 9 B1 E B2 C1 C2 RN1511 TE85R FMG4A T148 KTA1504GR RTK KTA1504Y RTK KTC3875Y RTK C B E 2SK3566 G D S 81 80 31 100 50 30 1 51 LA71750EM MPB E QSZAC0RMB152 LA70100M TRM 1 15 30...

Page 35: ... 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 Maintenance I Alignment for Mechanism I Disassembly Assembly of Mechanism I Alignment Procedures of Mechanism ...

Page 36: ...73 Recording model only B86 Not used in 2 head model 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 Pulley Assembly I I B587 Tension Lever Assembly I I B31 AC Head Assembly I B573 B574 Reel S Reel T I B37 Capstan Motor I I B52 Cap Belt I I B73 FE Head Assembly I B86 F Brake Assembly HI I...

Page 37: ...y 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 Audio Control 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 audio control head Be car...

Page 38: ...lignment 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 J 3 Mirror Available Locally Tape Transportation Check J 4 Azimuth Adj Screwdriver Available Locally A C Head Height J 5 X Value Adj Screwdriver Available Locally X Value ...

Page 39: ... 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 40: ... 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 Flowchart of Alignment for tape traveling 1 A 1 A 1 B 1 C 1 C 1 D 1 D 1 B 1 C 1 B 1 C 1 A 1 Tape Interchangeability Alignment Note To do these alignment procedures make sure that the Tracking Control Circ...

Page 41: ...sition 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 position of the Tracking Control Circuit 1 Connect the oscilloscope to TP301 C PB and TP501 CTL on the Main CBA Use TP502 RF SW as a trigger 2 Playback the Gray Scale of the Alignment Tape FL6NS8 and co...

Page 42: ...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 one shown in Fig M9 5 When Guide Rollers 2 and 3 Refer to Fig M3 are aligned properly there is no envelope drop either at the beginning or end of track as shown in Fig M9 Note Upon c...

Page 43: ...M1 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 Pinch Arm B T DM1 DM8 P 3 13 12 Pinch Arm Assembly T DM1 DM8 14 14 FE Head Assembly T DM1 DM9 S 5 15 15 Prism T DM1 DM9 S 6 16 2 Slider Shaft T DM10 L 5 17 16 C Drive Lever SP T DM10 18 16 C Drive Le...

Page 44: ...mbly 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 Assembly HI T DM1 DM15 37 2 26 M Brake SP Assembly HI T DM1 DM15 P 6 38 37 Tension Lever Assembly T DM1 DM15 39 38 T Lever Holder T DM15 L 10 40 40 M Gear HI T DM1 DM15 C 6 41 15 40 Sensor Gear HI T...

Page 45: ...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 ...

Page 46: ... 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 A 1 2 A 3 4 5 6 L 1 L 2 P 1 Fig DM5 L 3 S 1A L 12 49 50 7 S 2 A Fig DM6 View for A Desolder from bottom Lead with Red Stripe ...

Page 47: ...ite 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 Groove of 27 View for A Fig DM9 14 15 S 6 S 5 Fig DM10 17 16 18 S 7 L 5 P 4 ...

Page 48: ...n 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 shown 27 Top View First tooth on 44 First groove on 27 27 31 C 3 26 C 4 25 C 2 28 29 30 C 5 S 9 24 23 L 7 L 8 ...

Page 49: ...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 ...

Page 50: ...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 Mode G...

Page 51: ... SECTION VIDEO CASSETTE RECORDER 27C 450 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 I Exploded views I Parts List ...

Page 52: ...3 1 1 HE240FEX A1X EXPLODED VIEWS Front Panel ...

Page 53: ...41CEX 2L022 2L022 2L042 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 MAIN CBA 2L041 2B7 2B8 2B46 SENSOR CBA 2B5 2L051 2B14 Cabinet ...

Page 54: ...3 1 3 HE341PEX Some Ref Numbers are not in sequence X2 X3 X20 X1 X4 S1 Unit S3 A14 S2 S2 X6 S7 Packing ...

Page 55: ...nt 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 Floil G 684G or Multemp MH D Blue grease SLIDUS OIL 150 DECK EXPLODED VIEWS Deck Mechanism View 1 ...

Page 56: ...91 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 B564 B572 B559 B581 SANKOUL FG84M Yellow grease B133 B551 B583 B580 B582 A View for A B578 B579 B579 B585 B513 Deck Mechanism View 2 ...

Page 57: ...55 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 150 Deck Mechanism View 3 ...

Page 58: ...ist 2B9 CUSHION HC460ED 0VM413251 2B14 CUSHION PCB HE470ED 0VM415133 2B18 FIBER TOP CASE HC460ED 0VM412906 2L011 SCREW P TIGHT 3X10 BIND HEAD GBCP3100 2L012 SCREW P TIGHT 3X10 BIND HEAD GBCP3100 2L021 SCREW P TIGHT M3X10 WASHER HEAD GCMP3100 2L022 SCREW P TIGHT M3X10 WASHER HEAD See Electrical Parts List 2L031 SCREW S TIGHT M3X6 BIND HEAD GBMS3060 2L041 P TIGHT SCREW 3X8 BIND GBMP3080 2L042 P TIGH...

Page 59: ...V CHD1JJ3CG471 C151 CHIP CERAMIC CAP F Z 0 1µF 50V or CHD1JZ30F104 CHIP CERAMIC CAP F Z 0 1µF 25V or CHD1EZ30F104 CHIP CERAMIC CAP FZ Z 0 1µF 50V CHD1JZ3FZ104 C152 CHIP CERAMIC CAP F Z 0 1µF 50V or CHD1JZ30F104 CHIP CERAMIC CAP F Z 0 1µF 25V or CHD1EZ30F104 CHIP CERAMIC CAP FZ Z 0 1µF 50V CHD1JZ3FZ104 C153 CHIP CERAMIC CAP F Z 0 1µF 50V or CHD1JZ30F104 CHIP CERAMIC CAP F Z 0 1µF 25V or CHD1EZ30F10...

Page 60: ...CERAMIC CAP FZ Z 0 1µF 50V CHD1JZ3FZ104 C373 CHIP CERAMIC CAP F Z 0 1µF 50V or CHD1JZ30F104 Ref No Description Part No CHIP CERAMIC CAP F Z 0 1µF 25V or CHD1EZ30F104 CHIP CERAMIC CAP FZ Z 0 1µF 50V CHD1JZ3FZ104 C374 CHIP CERAMIC CAP F Z 0 1µF 50V or CHD1JZ30F104 CHIP CERAMIC CAP F Z 0 1µF 25V or CHD1EZ30F104 CHIP CERAMIC CAP FZ Z 0 1µF 50V CHD1JZ3FZ104 C375 CHIP CERAMIC CAP B K 0 01µF 50V CHD1JK30...

Page 61: ...P CERAMIC CAP CH J 22pF 50V or CHD1JJ3CH220 CHIP CERAMIC CAP CG J 22pF 50V CHD1JJ3CG220 C853 CHIP CERAMIC CAP B K 4700pF 50V CHD1JK30B472 C854 CHIP CERAMIC CAP B K 0 01µF 50V CHD1JK30B103 C855 CHIP CERAMIC CAP F Z 0 1µF 50V or CHD1JZ30F104 CHIP CERAMIC CAP F Z 0 1µF 25V or CHD1EZ30F104 Ref No Description Part No CHIP CERAMIC CAP FZ Z 0 1µF 50V CHD1JZ3FZ104 C856 CHIP CERAMIC CAP CH J 180pF 50V or C...

Page 62: ...BUILT IN TRANSISTOR BA1F4M T QQSZ00BA1F4M Q054 TRANSISTOR KTC3203 Y or NQSY0KTC3203 TRANSISTOR 2SC2120 Y TPE2 QQSY02SC2120 Q055 TRANSISTOR KTA1266 GR or NQS40KTA1266 TRANSISTOR 2SA1015 GR TPE2 QQS102SA1015 Q056 RES BUILT IN TRANSISTOR KRA103M or NQSZ0KRA103M RES BUILT IN TRANSISTOR BN1F4M T QQSZ00BN1F4M Q057 TRANSISTOR KTA1281 Y or NQSY0KTA1281 TRANSISTOR 2SA1020 Y QQSY02SA1020 Q058 RES BUILT IN T...

Page 63: ... Ref No Description Part No R068 CARBON RES 1 4W J 680 Ω RCX4JATZ0681 R069 CARBON RES 1 6W J 8 2k Ω or RCX6JATZ0822 CARBON RES 1 4W J 8 2k Ω RCX4JATZ0822 R070 CARBON RES 1 6W J 10k Ω or RCX6JATZ0103 CARBON RES 1 4W J 10k Ω RCX4JATZ0103 R071 CARBON RES 1 6W J 1 8k Ω or RCX6JATZ0182 CARBON RES 1 4W J 1 8k Ω RCX4JATZ0182 R072 CHIP RES 1608 1 10W J 68k Ω RRXAJR5Z0683 R073 CARBON RES 1 6W J 1 Ω or RCX6...

Page 64: ...G 1 5k Ω or RCX6GATZ0152 CARBON RES 1 4W G 1 5k Ω RCX4GATZ0152 R539 CARBON RES 1 6W G 4 7k Ω or RCX6GATZ0472 CARBON RES 1 4W G 4 7k Ω RCX4GATZ0472 Ref No Description Part No R540 CHIP RES 1608 1 10W J 390k Ω RRXAJR5Z0394 R541 CHIP RES 1608 1 10W J 390k Ω RRXAJR5Z0394 R542 CHIP RES 1608 1 10W J 1 8k Ω RRXAJR5Z0182 R543 CHIP RES 1608 1 10W J 1k Ω RRXAJR5Z0102 R544 CHIP RES 1608 1 10W J 2 7k Ω RRXAJR...

Page 65: ... 2200pF 50V CHD1JK30B222 C112 CHIP CERAMIC CAP CH J 470pF 50V or CHD1JJ3CH471 CHIP CERAMIC CAP CG J 470pF 50V CHD1JJ3CG471 Ref No Description Part No C113 CHIP CERAMIC CAP B K 2200pF 50V CHD1JK30B222 C115 ELECTROLYTIC CAP 100µF 16V M H7 CE1CMAVSL101 C116 ELECTROLYTIC CAP 470µF 6 3V M or CE0KMASDL471 ELECTROLYTIC CAP 470µF 6 3V M CE0KMASTL471 C117 ELECTROLYTIC CAP 470µF 6 3V M or CE0KMASDL471 ELECT...

Page 66: ...on Part No SENSOR CBA 0VSA13549 Consists of the following TRANSISTORS Q504 PHOTO TRANSISTOR PT204 6B 12 or NPWZT2046B12 PHOTO TRANSISTOR MID 32A22F NPWZ1D32A22F Q505 PHOTO TRANSISTOR PT204 6B 12 or NPWZT2046B12 PHOTO TRANSISTOR MID 32A22F NPWZ1D32A22F ...

Page 67: ...CH ARM A ASSEMBLY 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 SPG 3002645 MK12 0VM414221F B425 LOCK LEVER SPRING MK10 0VM411110 B482 CASSETTE PLATE MK12 0VM203749 B483 LOCK LEVER MK12 0VM414095 B487 BAND BRAKE SP MK12 0VM305723 B488 MODE LEVER HI MK12 0V...

Page 68: ...EW S TIGHT M2 6X8 WASHER HEAD GCMS9080 L1321 SCREW S TIGHT M3X6 BIND HEAD GBMS3060 L1341 SCREW P TIGHT M2X6 PAN HEAD GPMP2060 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 M2 6X5 WASHER HEAD SCM39050 Ref No Description Part No ...

Page 69: ...27C 450 HE341FD ...

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