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Toshiba MV20FK3 Service Manual
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Toshiba MV20FK3 Service Manual

Toshiba MV20FK3 Service Manual

Color television/video cassete recorder
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Televisión y Videograbadora
Precauciones de servicio durante la revisión
Especificaciones generales
Instrucciones de desensamble
MV20FK3
Clave para abreviaturas
Lista de modos de servicio
Revisiones preventivas e intervalos de servicio
Nota para el reemplazo del IC de memoria
Jigs de servicio y herramientas
Ajustes mecánicos
Ajustes eléctricos
Diagramas a bloques
Placas de circuitos impresos
Diagrama esquemático
Formas de onda
Vistas explotadas mecánicas
Vistas explotadas del chasis (para ver)
Lista de partes de reemplazo del chasis
Lista de partes de reemplazo mecánicas
Lista de partes de reemplazo eléctricas

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Summary of Contents for Toshiba MV20FK3

  • Page 1 Televisión y Videograbadora Precauciones de servicio durante la revisión Especificaciones generales Instrucciones de desensamble MV20FK3 Clave para abreviaturas Lista de modos de servicio Revisiones preventivas e intervalos de servicio Nota para el reemplazo del IC de memoria Jigs de servicio y herramientas Ajustes mecánicos...
  • Page 2 FILE NO. 140-200011 SERVICE MANUAL COLOR TELEVISION/ VIDEO CASSETTE RECORDER MV20FK3...

  • Page 3: Servicing Notices On Checking

    SERVICING NOTICES ON CHECKING 1. KEEP THE NOTICES 6. AVOID AN X-RAY As for the places which need special attentions, Safety is secured against an X-ray by consider- they are indicated with the labels or seals on the ing about the cathode-ray tube and the high cabinet, chassis and parts.

  • Page 4: General Specifications

    GENERAL SPECIFICATIONS G-1.Outline of the Product inch( 508.0 mmV):Measured diagonally Color CRT degree deflection -Speed 1/2" Video Cassette Recorder Recorder/Player VHS-C Player G-2.VCR Format VHS Standard NTSC SECAM PAL-M PAL-N VHS Hi-Fi Audio System G-3.Video Recording System :Rotary,slant azimuth two head helical scan system Luminance Component :FM recording Chrominance Component...
  • Page 5 GENERAL SPECIFICATIONS G-16.Antenna Input Impedance VHF/UHF 75 ohm unbalanced G-17.Tuner and Receiving channel 1Tuner System 2Tuner System BS Tuner Tuner : Contactless Electric tuner Oscar(W/O HYPER) Oscar(W/ HYPER) France CATV) Others channel coverage 2 ~ 69 , 4A , A-5 ~ A-1 , A ~ I , J ~ W , W+1 ~ W+84 Tuning System Frequency syn.
  • Page 6 GENERAL SPECIFICATIONS G-26.Power Consumption: 115 W at AC 60 Hz(Approx.) - W at DC (at TV and VCR ON) Stand by: 5 W at AC 60 Hz(Approx.) Per Year: --- kWh / Year G-27.Dimensions(Approx.) 502 mm(W) 481.5 mm(D) 513 mm(H) G-28.Weight(Approx.) Net : 26.5 Kg ( 58.5 lbs)
  • Page 7 GENERAL SPECIFICATIONS G-37.Timer back up Time More than 1/12 Minutes (at Power Off Mode) G-38.Terminals VHF/UHF Antenna Input Din Type F-Type France Type Front Video Input<AV2, RCA ø8.3> Front Audio Input<AV2, RCA ø8.3> x2 Rear Video Input<AV1, RCA ø8.3> Rear Audio Input<AV1, RCA ø8.3> x2 Rear Video Output<RCA ø8.3>...
  • Page 8 GENERAL SPECIFICATIONS G-42.Speaker Position Front Side Bottom Size inches Imp. 8 ohm x Output 1.5 + 1.5 1.5 + 1.5 W (Typical) G-43.EXT Speaker G-44.Carton Master Carton: Need No Need Content: ---- Material: ---- / ---- Corrugated Carton Dimensions: ---- mm(W) ---- mm(D) ---- mm(H) Description of Origin...
  • Page 9 GENERAL SPECIFICATIONS G-47.Switch Front Power Channel Up Volume Up Play Channel Down Volume Down Pause/Still F.FWD/Cue Rew/Rev System Select Eject/Stop Rec/OTR One Touch Playback Main Power SW Input Select Rear Color On/Off (SECAM only) Degauss Main Power SW AC/DC G-48.Magnetic Field BV : +0.45G BV :...

  • Page 10: Removal Of Mechanical Parts And P.c. Boards

    DISASSEMBLY INSTRUCTIONS 1. REMOVAL OF MECHANICAL PARTS 1-3: TV/VCR BLOCK (Refer to Fig. 1-3) Remove the 2 screws 1. AND P.C. BOARDS Disconnect the following connectors: 1-1: BACK CABINET (Refer to Fig. 1-1) (CP401, CP502, CP4201 and CP4202). Remove the 6 screws 1. Unlock the support 2.

  • Page 11: Disassembly Instructions

    DISASSEMBLY INSTRUCTIONS 1-5: DECK SHIELD PLATE (Refer to Fig. 1-5) 1-7: JACK PLATE AND SYSCON PCB (Refer to Fig. 1-7) Remove the 2 screws 1. Remove the screw 1. Remove the screw 2. Remove the Syscon PCB in the direction of arrow (A). Remove the 2 screws 2.

  • Page 12: Removal Of Deck Parts

    DISASSEMBLY INSTRUCTIONS 2. REMOVAL OF DECK PARTS NOTE When you install the Tape Guide L, install as shown in the 2-1: TOP BRACKET (Refer to Fig. 2-1) circle of Fig. 2-3-B. (Refer to Fig. 2-3-B) Remove the 2 screws 1. Slide the 2 supports 2 and remove the Top Bracket.
  • Page 13 DISASSEMBLY INSTRUCTIONS 2-6: LINK ASS'Y (Refer to Fig. 2-6) 2-9: TENSION ASS'Y (Refer to Fig. 2-9-A) Set the Link Ass'y to the Eject position. Move the Inclined S Ass'y to the back side. Remove the (A) side of the Link Ass'y first, then remove Remove the Tension Spring.

  • Page 14: Remove The Screw

    DISASSEMBLY INSTRUCTIONS 2-11: S REEL/T REEL (Refer to Fig. 2-11) NOTE Remove the S Reel and T Reel. Do not touch the Pinch Roller. (Use gloves.) Remove the 2 Polyslider Washers 1. When you install the Pinch Roller Block, install as shown in the circle of Fig.
  • Page 15 DISASSEMBLY INSTRUCTIONS 2-15: AHC ASS'Y/CYLINDER UNIT ASS'Y (Refer to Fig. 2-15) Middle Gear Unlock the support 1 and remove the AHC Ass'y. E-Ring Remove the 3 screws 2. Remove the Cylinder Unit Ass'y. Main Cam NOTE Pinch Roller Cam When you install the Cylinder Unit Ass'y, tighten the screws from (1) to (3) in order while pulling the Ass'y Joint Gear toward the left front direction.
  • Page 16 DISASSEMBLY INSTRUCTIONS 2-19: LOADING GEAR S/T ASS'Y (Refer to Fig. 2-19-A) 2. When you install the Clutch Actuator, install as shown in the circle of Fig. 2-19-C. (Refer to Fig. 2-19-C) Remove the E-Ring 1 and remove the Main Loading Gear.

  • Page 17: Removal Of Anode Cap

    DISASSEMBLY INSTRUCTIONS 3. REMOVAL OF ANODE CAP 3. After one side is removed, pull in the opposite direction to remove the other. Read the following NOTED items before starting work. NOTE After turning the power off there might still be a potential Take care not to damage the Rubber Cap.

  • Page 18: Key To Abbreviations

    KEY TO ABBREVIATIONS Audio/Control H.SW Head Switch Automatic Color Control Hertz Audio Erase Integrated Circuit Automatic Frequency Control Intermediate Frequency Automatic Fine Tuning Indicator AFT DET Automatic Fine Tuning Detect Inverter Automatic Gain Control Killer Amplifier Left Antenna Light Emitting Diode A.PB Audio Playback LIMIT AMP...
  • Page 19 KEY TO ABBREVIATIONS SYNC Synchronization SYNC SEP Sync Separator, Separation Transistor TRAC Tracking TRICK PB Trick Playback Test Point UNREG Unregulated Volt Voltage Controlled Oscillator Video Intermediate Frequency Vertical Pulse, Voltage Display V.PB Video Playback Variable Resistor V.REC Video Recording Visual Search Fast Forward Visual Search Rewind Voltage Super Source...

  • Page 20: Service Mode List

    SERVICE MODE LIST This unit provided with the following SERVICE MODES so you can repair, examine and adjust easily. To enter SERVICE MODE, unplug AC cord till lost actual clock time. Then press and hold Vol (-) button of main unit and remocon key simultaneously.

  • Page 21: Preventive Checks And Service Intervals

    PREVENTIVE CHECKS AND SERVICE INTERVALS The following standard table depends on environmental conditions and usage. Unless maintenance is properly carried out, the following service intervals may be quite shortened as harmful effects may be had on other parts. Also, long term storage or misuse may cause transformation and aging of rubber parts. Time 1,000 1,500...

  • Page 22: Audio Control Head

    PREVENTIVE CHECKS AND SERVICE INTERVALS CLEANING NOTE 2. TAPE RUNNING SYSTEM After cleaning the heads with isopropyl alcohol, do not When cleaning the tape transport system, use the run a tape until the heads dry completely. If the heads gauze moistened with isopropyl alcohol. are not completely dry and alcohol gets on the tape, 3.

  • Page 23: Note For The Replacing Of Memory Ic

    NOTE FOR THE REPLACING OF MEMORY IC If a service repair is undertaken where it has been required to change the MEMORY IC, the following steps should be taken to ensure correct data settings while making reference to TABLE 1. NOTE: Initial Data setting will not be possible if clock has been set.

  • Page 24: Servicing Fixtures And Tools

    SERVICING FIXTURES AND TOOLS Alignment Tape Back tension cassette gauge Torque cassette gauge Taper nut driver (KT-300NR) ST-N5 ST-NF 70909103 70909199 70909228 VTR cleaning kit VTR lubrication kit Grease JG002B Adapter JG002E Dial Torque Gauge (10~90gf•cm) JG002F (60~600gf•cm) JG022 Master Plane JG024A Reel Disk Height JG153 X Value Adjustment JG154 Cable...

  • Page 25: Preparation For Servicing

    PREPARATION FOR SERVICING How to use the Servicing Fixture Unplug the connector CP4201 and CP4202, then remove the TV/VCR Block from the set. Unplug the connector CP810, CP820 and CP805, then remove the Main PCB from the VCR Block. Connect as shown in the below figure using the Service Fixture. •...

  • Page 26: Confirmation And Adjustment

    MECHANICAL ADJUSTMENTS 1. CONFIRMATION AND ADJUSTMENT 1-2: CONFIRMATION AND ADJUSTMENT OF TENSION POST POSITION Read the following NOTES before starting work. Set to the PLAY mode. • Place an object which weighs between 450g~500g on Adjust the Tension Adjust until the edge of the Tension the Cassette Tape to keep it steady when you want to Arm is positioning within 0.5mm range from the make the tape run without the Cassette Holder.

  • Page 27: Confirmation And Adjustment Of Tape Running Mechanism

    MECHANICAL ADJUSTMENTS 1-4: CONFIRMATION OF VSR TORQUE 2. CONFIRMATION AND ADJUSTMENT OF TAPE RUNNING MECHANISM Operate within 4~5 seconds after the reel disk begins to turn. Tape Running Mechanism is adjusted precisely at the Install the Torque Gauge (JG002F) and Adapter (JG002B) factory.
  • Page 28 MECHANICAL ADJUSTMENTS 2-2: CONFIRMATION AND ADJUSTMENT OF AUDIO/ 2-3: TAPE RUNNING ADJUSTMENT CONTROL HEAD (X VALUE ADJUSTMENT) When the Tape Running Mechanism does not work well, Confirm and adjust the height of the Reel Disk. adjust the following items. (Refer to item 1-1) Confirm and adjust the position of the Tension Post.

  • Page 29: Mechanism Adjustment Parts Location Guide

    MECHANICAL ADJUSTMENTS 3. MECHANISM ADJUSTMENT PARTS LOCATION GUIDE 1. Tension Adjust X value adjustment driver hole 2. Tension Arm P4 Post 3. Guide Roller T Brake Spring 4. P1 Post T Reel 5. Audio/Control Head S Reel...

  • Page 30: Adjustment Procedure

    ELECTRICAL ADJUSTMENTS 1. ADJUSTMENT PROCEDURE 2. BASIC ADJUSTMENTS Read and perform these adjustments when repairing the (VCR SECTION) circuits or replacing electrical parts or PCB assemblies. 2-1: PG SHIFTER CAUTION Connect CH-1 on the oscilloscope to TP1002 and CH-2 • Use an isolation transformer when performing any to TP4201.
  • Page 31 ELECTRICAL ADJUSTMENTS 2-3: RF AGC 2-8: WHITE BALANCE NOTE: Adjust after performing CUT OFF adjustment. Receive the VHF HIGH (70dB). Connect the digital voltmeter between the pin 5 of Place the set with Aging Test for more than 15 minutes. CP602 and the pin 1 (GND) of CP602.
  • Page 32 ELECTRICAL ADJUSTMENTS 2-13: VERTICAL POSITION NOTE: Adjust after performing adjustments in section 2-12. Receive the center cross signal from the Pattern Generator. Using the remote control, set the brightness and contrast to normal position. Activate the adjustment mode display of Fig. 1-1 and press the channel button (07) on the remote control to select "V POSI".

  • Page 33: Electrical Adjustment Parts Location Guide

    ELECTRICAL ADJUSTMENTS 3. ELECTRICAL ADJUSTMENT PARTS LOCATION GUIDE (VCR SECTION) TP1002 TP1001 TP4001 CP602 TU601 VR6001 J4202 J4201 TP4201 SYSCON PCB...
  • Page 34 ELECTRICAL ADJUSTMENTS (TV SECTION) TP806 TP804 VR402 VR401 FH503 FB401 J801 FOCUS VOLUME T501 SCREEN VOLUME CRT PCB VR502 MAIN PCB...

  • Page 35: Purity And Convergence Adjustments

    ELECTRICAL ADJUSTMENTS 4-3: STATIC CONVERGENCE 4. PURITY AND CONVERGENCE ADJUSTMENTS NOTE Adjust after performing adjustments in section 4-2. NOTE Receive the crosshatch pattern from the color bar Turn the unit on and let it warm up for at least 30 generator.

  • Page 36: Tv Block Diagram

    TV BLOCK DIAGRAM V. OUTPUT IC401 LA78040 MICON/ OPERATION/ THERMAL Q610, Q611 DECK PROTECTION UNGER+8V AT+5V Q606 P.CON+8V AT+13V PUMP Q602, Q603 HIFI TU1_AUDIO_A P.CON+5V Q405 Q406 Y/C/AUDIO/ CHROMA TU1_VIDEO HEAD AMP/ IC601 M61203CFP H-DRIVE H. OUTPUT 33 39 46 63 48 IN/OUT DELAY ADJ...

  • Page 37: Y/C/Audio/Head Amp/In/Out Block Diagram

    Y/C/AUDIO/HEAD AMP/IN/OUT BLOCK DIAGRAM HIFI X4001 3.579545MHz Q604 Q4009 BUFFER BUFFER Y/C/A/CCD/H.AMP IC4001 PULL LA71067M-MPB SP/LP/EP-H VX01 MICON/ INPUT_SEL TIMMING CLAMP DRIVER OPERATION/ TRICK_PB-H/EE-H DECK H.SW DATAIL FM-EQ EMPHA DOC_XO_CTL CLAMP CP4001 CONV C-LPF EP/LP-CH2 (L) Y-LPF MONITOR_V EP/LP COM TU1_VIDEO H.AMP EP/LP-CH1 (R)
  • Page 38 MICON/OPERATION/DECK BLOCK DIAGRAM TIMER SYSCON MICON V. REC_ST_H IC1001 OEC7043B SW1001 VCR_A_MUTE HIFI HI-FI-ENV HIFI_ENV HI-FI-H.SW HIFI_H.SW TAB SW STEREO ST_SELECT AT + 5V MSSEN-A P. CON + 5V X_RAY_TEST X_RAY_TEST MS_SEN A POWER_FAIL_L POWER FAIL(DC) Q1009 XC-OUT(32KHz) MSSEN-B X1002 HIFI MS_SEN B 32.768KHz...
  • Page 39 HIFI BLOCK DIAGRAM J701 HIFI AUDIO/H.AMP/DEM IC5501 AN3662FBP FRONT_VIDEO_IN J4201 Y/C/AUDIO/ H.AMP/IN/OUT INPUT SW REAR_VIDEO_IN Y/C/AUDIO/ OUTPUT HF_COM H.AMP/IN/OUT J4202 AUDIO_OUT_R AUDIO_OUT_L Y/C_AUDIO TU1_AUDIO_A NORMAL_A FM LIM VCO-FO LOGIC V. REC_ST_H BLOCK HIFI_ENV. P.CON+5V HIFI_H.SW MICON/ VCR_A_MUTE OPERATION/ P.CON+9V DECK LOGIC ST_SELECT...

  • Page 40: Printed Circuit Boards Main/Crt Solder Side

    PRINTED CIRCUIT BOARDS MAIN/CRT SOLDER SIDE VR401 VR402 CP820_1 C520 W012 R509 C405 TP806 Q803 R414 S810Y C806 Q512 Q505 CP810_1 R520 W044 W052 Q509 Q503 R815 R830 HS401 R413 C524 D803 R508 R518 Q812 Q508 R821 W038 TP804 R811 Q801 C516 W008...

  • Page 41: Printed Circuit Boards

    PRINTED CIRCUIT BOARDS OPERATION SOLDER SIDE C352 C353 W806 W804 R352 W015 SW751 W813 OS753 W809 R778 R777 R776 R775 C779 C781 W009 W018 W024 W019 CD355 CD356 R793 J701_1 J351 W011 W006 R754 R761 CD757_2 R766 W013 W004 W805 CD702 DECK SOLDER SIDE...
  • Page 42 PRINTED CIRCUIT BOARDS SYSCON (INSERTED PARTS) SOLDER SIDE CC4202 TP4001 CP4202 W345 W826 W209 S825Y TP1001 C5552 W073 W207 C5516 W206 W205 IC352 W202 W200 C5535 SW1001 W903 HS352 W198 C5509 R1048 C309 C5529 W099 C5562 C5532 C5523 W098 W097 L5503 C5533 R5507...
  • Page 43 PRINTED CIRCUIT BOARDS SYSCON (CHIP MOUNTED PARTS) SOLDER SIDE R667 Q4204 Q609 Q4206 Q4205 R1001 R601 Q1002 Q4210 R1008 R4232 C1068 Q4212 R1083 R636 Q4203 Q1004 W883 R631 C1074 R649 C4209 C660 C1027 Q4211 R4069 C1025 R4203 W912 C644 R647 R1020 C637 C654...
  • Page 44 TV POWER SCHEMATIC DIAAGRAM (MAIN PCB) DEGAUSS_H 6.3A 125V 2.5A 125V FROM/TO DEFLECTION CAUTION: FOR CONTINUED PROTECTION AGAINST FIRE HAZARD, REPLACE ONLY WITH THE SAME TYPE FUSE RELAY DRIVE SOUND+B 6.3A 125V(F501) ,2.5A 125V(F502). Q504 D516 2SC1815Y TV.POWER_H ATTENTION: POUR UNE PROTECTION CONTINUE LES RISQUES D’INCEIE DEGAUSS_H 1SS133 N’UTILISER QUE DES FUSIBLE DE MEME TYPE...

  • Page 45: Deflection Schematic Diagram

    DEFLECTION SCHEMATIC DIAGRAM (MAIN PCB) V.OUTPUT IC401 LA78040 THERMAL PROTECTION PUMP UP 25.5 12.9 24.8 FROM/TO CHROMA/IF CP820_1 (CP601) 8283_1312_00_000 SOUND+B TO DY SOUND GND CP401 H.OUT B05B-DVS V.FEEDBACK C412 V.OUT 500V R413 R416 R412 L402 H.PULSE 27K +-1% 4.7K +-1% TV POWER H ELH5L4113 R448...

  • Page 46: Crt Schematic Diagram

    CRT SCHEMATIC DIAGRAM (CRT PCB) RED AMP W853 Q810 2SC1740SP TP804 R828 2.7K 1/4W RED AMP Q801 123.5 2SC2621 R813 D801 1SS133 R810 1.8K FROM CHROMA/IF J801 GREEN AMP W849 CP805 (CD850) CVT3275-5101 Q811 8283_0512_00_000 TP805 2SC1740SP R829 108.3 2.7K 1/4W CUT OFF 117.2 G.OUT...

  • Page 47: Y/C/Audio/Head Amp Schematic Diagram

    Y/C/AUDIO/HEAD AMP SCHEMATIC DIAGRAM (SYSCON PCB) FROM/TO POWER P.CON+5V TU2_VIDEO CHROMA_VIDEO L4002 47uH 0305 FROM/TO HIFI FROM/TO I/O NORMAL_A FRONT_VIDEO_IN B4002 Y/C_AUDIO REAR_VIDEO_IN BL02RN1-R62 W900 W896 VIDEO_OUT BUFFER Q604 2SC2412K HF_COM R4074 1K 1/4W FROM/TO CYL/MOTOR CP4001 TOC-C09X-A1 TP4001 FROM/TO CHROMA/IF HF1 (R) TU1_VIDEO HF COM...

  • Page 48: Micon Schematic Diagram

    MICON SCHEMATIC DIAGRAM (SYSCON PCB) FROM/TO POWER C1041 SERVICE R1032 10K TP1001 0.1 B AT+5V[UCON] AT+5V[BACKUP] P.CON+5V R1048 AT+12V MOTOR_GND W867 1K 1/4W R1029 R1044 4.7K 3.3K W808 R1053 C1034 LOADING MOTOR DRIVER 0.1 F IC1003 BA6955N C1035 FROM/TO Y/C/A/H.AMP CONTROL LOGIC 200P CH V.SYNC...

  • Page 49: Power Schematic Diagram

    POWER SCHEMATIC DIAGRAM (SYSCON PCB) 12.4 P.CON+8V REG. Q606 2SC2120Y P.CON+5V[CHROMA] REG. Q603 2SC13840W P.CON+5V[TU1] REG. FROM/TO Y/C/A/H.AMP Q602 2SC13840W AT+5V[UCON] P.CON+5V REG. Q611 D610 2SD734 AT+5V[BACKUP] SB10-03A3 REG. R644 FROM/TO MICON 8.7VREF Q610 2SD734 100 1/4W AT+5V[BACKUP] 9V REG AT+5V[UCON] IC603 KIA7809PI...

  • Page 50: In/Out Schematic Diagram

    IN/OUT SCHEMATIC DIAGRAM (SYSCON PCB) LED SW Q4205 DTC114EKA T-REC LED SW FROM/TO SOUND AMP Q4206 SP_OUT_R DTC114EKA SOUND_R+ SP_OUT_L TV POWER LED SW SOUND_L+ TO PLATE DECK SHIELD Q4204 DTC114EKA SOUND_GND CC4201 CC4202 FROM/TO MICON FROM/TO Y/C/A/H.AMP VCR_A_MUTE VIDEO_OUT REC_LED FRONT_VIDEO_IN T-REC_LED...

  • Page 51: Chroma/If Schematic Diagram

    CHROMA/IF SCHEMATIC DIAGRAM (SYSCON PCB) FROM/TO MICON DEGAUSS_H POWER_FAIL[DC] OSD_R OSD_G OSD_B C663 OSD_BLK 120P CH L608 AFT_M 100uH VCR_POWER_H TU1_VIDEO FROM/TO HIFI TV_POWER_H L610 TU1_AUDIO_A X_RAY_TEST R620 100uH IIC_OFF 0607 CF604 BUFFER C679 EFCT4R5MW5 Q601 2SA1037AK 100P CH C648 R678 MONITOR_V FROM/TO Y/C/A/H.AMP...

  • Page 52: Sound Amp Schematic Diagram

    SOUND AMP SCHEMATIC DIAGRAM (SYSCON PCB) SOUND_AMP IC352 AN7522 HS352 763WAA0027 FROM/TO I/O SOUND_R+ W874 SP_OUT_R W873 SP_OUT_L SOUND_L+ C350 FROM/TO CHROMA/IF B301 SOUND+B BL01RN1-A63 SOUND_GND FROM/TO I/O SOUND_GND FROM/TO MICON R353 TV_POWER_H R359 TV_A_MUTE MUTE SW Q350 2SC2412K C302 R306 0.033 B 1.8K...

  • Page 53: Hifi Schematic Diagram

    HIFI SCHEMATIC DIAGRAM (SYSCON PCB) C5521 R5518 0.22 B 2.7K SWITCH C5561 Q2501_1 FROM/TO I/O 2SC2412K S826X S826Y 100P C5560 FRONT_AUDIO_IN_R R2530_1 INPUT_SEL FRONT_AUDIO_IN_L HIFI AUDIO/H.AMP/DEM 100P 330K IC5501 W939 REAR_AUDIO_IN_R AN3662FBP (R2501) REAR_AUDIO_IN_L C5506 0.1 B C5540 0.015 B AUDIO_OUT_R DEM_BLK ZZ-PROM...
  • Page 54 OPERATION SCHEMATIC DIAAGRAM (OPERATION PCB) R754 270 FROM/TO I/O CD757_2 (CP4201) CH2A012A R778 R771 R772 R773 R774 REMOCON OUT 1.5K 2.7K 5.6K AT+5V POWER ON L KEY A Vout T-REC LED REC LED OS753 R775 R776 R777 PIC-28143TC5 KEY B 1.5K SPEAKER CD355...

  • Page 55: Deck Schematic Diagram

    DECK SCHEMATIC DIAGRAM LOADING MOTOR M101 (DECK PCB) S105 BOT SENSOR Q101 S106 RPT-38PB113 S101 S102 S103 S104 FROM/TO MICON CP101 (CP1006) 52044-0445 LDM+ LDM- PCB550 VE8851 NOTE: NOTE: THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME THE DC VOLTAGE AT EACH PART WAS CAUTION: SINCE THESE PARTS MARKED BY ATTENTION:...

  • Page 56: Interconnection Diagram

    INTERCONNECTION DIAGRAM HALL MAIN ROTOR REMOCON SENSOR SENSOR COIL MAGNET OS753 TM101 FG SENSOR J701 CD757 CP4201 REMOCON OUT Vout AT+5V POWER ON L HALL HALL J351 SWITCH KEY A LOGIC CP1004 T-REC LED REC LED MOTOR GND KEY B I LIMIT OPERATION PCB SYSCON PCB...
  • Page 57 WAVEFORMS TV POWER Y/C/AUDIO/HEAD AMP 5V 0.1ms/div 20.0V 20µs/div 100mV 5ms/div DEFLECTION 20.0V 20µs/div 5V 20µs/div REC/PB 100mV 0.5µs/div DEFLECTION 0.5V 5ms/div 1V 10ms/div 20V 10µs/div TV POWER 0.5V 20µs/div REC/PB 20V 1ms/div 0.5V 20µs/div MICON 20.0V 20µs/div 0.5V 5µs/div REC/PB 1V 5ms/div NOTE:...
  • Page 58 WAVEFORMS CHROMA/IF REC/PB REC/PB 200mV 20µs/div 2V 20µs/div 1V 10ms/div REC/PB REC/PB 200mV 20µs/div 1V 5ms/div 1V 0.5ms/div REC/PB 28 200mV 20µs/div 1V 2ms/div 1V 50ns/div IN/OUT REC/PB 200mV 20ms/div REC/PB 1V 10ms/div 200mV 20ns/div HIFI REC/PB REC/PB 34 200mV 2ms/div 0.5V 20µs/div 1V 10ms/div NOTE:...
  • Page 59 WAVEFORMS 35 200mV 2ms/div NOTE: The following waveforms were measured at the point of the corresponding balloon number in the schematic diagram.

  • Page 60: Mechanical Exploded View

    MECHANICAL EXPLODED VIEW J801 PCB110 (CRT PCB) L503 V801 PCB070 (MAIN PCB) PCB030 (OPERATION PCB) SP352 SP351...
  • Page 61 MECHANICAL EXPLODED VIEW TU601 PCB010 (SYSCON PCB)

  • Page 62: Chassis Exploded View (Top View)

    CHASSIS EXPLODED VIEW (TOP VIEW) M2003 UN4001 H5001 H5002 M101 PCB550 (DECK PCB ASS'Y) NOTE: Applying positions AA and BA for the grease or CLASS MARK oil are displayed for this section. GREASE Check if the correct grease or oil is applied for each position.

  • Page 63: Chassis Exploded View (Bottom View)

    CHASSIS EXPLODED VIEW (BOTTOM VIEW) M2001 NOTE: Applying positions AA and BA for the grease or CLASS MARK oil are displayed for this section. GREASE Check if the correct grease or oil is applied for each position.

  • Page 64: Chassis Replacement Parts List

    CHASSIS REPLACEMENT PARTS LIST Location No. TSB P/N Reference No. Description BZ610081 A57201B420A DECK ASSY A57201B420A BZ710073 85OA500022 AHC ASS'Y BZ710193 85OP200290 BELT,CAPSTAN (S) BZ710132 85OP900710 LEVER,REC BZ710094 85OP500083 BASE,AC HEAD BZ710112 85OP800324 SPRING,AC HEAD BZ710194 85OA000367 MAIN CHASSIS ASS'Y (S-Z) BZ710195 85OA200082 CLUTCH ASS'Y(S2)
  • Page 65 CHASSIS REPLACEMENT PARTS LIST Location No. TSB P/N Reference No. Description BZ710048 8107126A04 SCREW,TAP TITE(S) PAN 2.6x10 BZ710049 8107226804 SCREW,TAP TITE(S) BIND 2.6x8 BZ710017 8107226604 SCREW,TAP TITE(S) BIND 2.6x6 BZ710050 8109126604 SCREW,TAP TITE(B) PAN 2.6x6 BZ710052 810A126804 SCREW/WASHER(A) M2.6x8 BZ710053 810B126404 SCREW/WASHER(B) M2.6x4...

  • Page 66: Mechanical Replacement Parts List

    MECHANICAL REPLACEMENT PARTS LIST Location No. TSB P/N Reference No. Description BZ610079 A57201B720 CABINET,FRONT ASS'Y BZ710270 753WSA0130 SHIELD,COVER HEAD AMP BZ710249 761WPA0198 HOLDER,DECK BZ710250 771WPA0256 PLATE,JACK BZ710037 82A97A4077 WASHER 9.7x14xT0.7 BZ710038 8300495207 NUT (VOLUME NUT 3/8 INCH) BZ710178 85OP700036 HOLDER,EOT SENSOR BZ710011 761WPA0145 HOLDER,FBT...

  • Page 67: Electrical Replacement Parts List

    ELECTRICAL REPLACEMENT PARTS LIST Location No. TSB P/N Reference No. Description RESISTORS R402 BZ210051 R3X18AR47J R,METAL OXIDE 0.47 OHM 2W ! R415 BZ210052 R002T21R8J 1.8 OHM 1/2W ! R418 BZ210053 R002T22R2J 2.2 OHM 1/2W ! R436 BZ210054 R65582120J R,FUSE 12 OHM 1/2W ! R437 BZ210039 R3X181010J...
  • Page 68 ELECTRICAL REPLACEMENT PARTS LIST Location No. TSB P/N Reference No. Description DIODES D406 BZ410014 D2LTPG06J0 DIODE,SILICON RMPG06J-G3 ! D407 BZ410051 DCBFMV3FU0 DIODE FMV-3FULF027-102 ! D408 BZ410018 D94TA27011 DIODE,ZENER HZ27-1L TD ! D409 BZ410017 D94TA11B13 DIODE,ZENER HZ11B3L TD D410 BZ410022 D97U06R81B DIODE,ZENER MTZJ6.8B T-77 ! D411...
  • Page 69 ELECTRICAL REPLACEMENT PARTS LIST Location No. TSB P/N Reference No. Description IC1002 BZ611012 I9UJ0T600H PST600H IC1003 BZ611018 I07SQ69550 BA6955N IC1099 BZ610073 A57201B015 S-24C04BDP-LA IC4001 BZ611039 I03F31067M LA71067M-MPB IC5501 BZ611024 I01F62FBP0 AN3662FBP TRANSISTORS Q350 BZ510002 T8YJ2412K0 TRANSISTOR,SILICON 2SC2412KT146 R,S Q401 BZ510004 TA3T016240 TRANSISTOR,SILICON 2SA1624-AA...
  • Page 70 ELECTRICAL REPLACEMENT PARTS LIST Location No. TSB P/N Reference No. Description COILS &TRANSFORMERS ! L503 BZ310066 028R200024 COIL,DEGAUSS 8R200024 L602 BZ310012 021LA6R56M COIL 0.56 UH L603 BZ310002 021673101K COIL 100 UH L605 BZ310009 021LA62R2K COIL 2.2 UH L607 BZ310067 021LA6180K COIL L608 BZ310002...
  • Page 71 ELECTRICAL REPLACEMENT PARTS LIST Location No. TSB P/N Reference No. Description MISCELLANEOUS CF604 BZ613016 1011T4R517 FILTER,CERAMIC EFCT4R5MW5 ! CP401 BZ614020 069X450029 CONNECTOR PCB SIDE B05B-DVS ! CP501 BZ614012 0697320039 CORD UX CONNECTOR THL-P03P-B1 ! CP502 BZ614018 069W420029 CONNECTOR PCB SIDE TV-50P-02-A1 CP601 BZ614103...
  • Page 72 TOSHIBA VIDEO PRODUCTS PTE. LTD. 438B ALEXANDRA ROAD, BLOCK B #06-01 ALEXANDRA TECHNOPARK SINGAPORE 119968...

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