Toshiba VTV1402S Service Manual
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Toshiba VTV1402S Service Manual

Color television / video cassette recorder
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FILE NO. 140-200009
SERVICE MANUAL
COLOR TELEVISION/
VIDEO CASSETTE RECORDER
VTV1402S

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Summary of Contents for Toshiba VTV1402S

  • Page 1 FILE NO. 140-200009 SERVICE MANUAL COLOR TELEVISION/ VIDEO CASSETTE RECORDER VTV1402S...

  • Page 2: 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 3 GENERAL SPECIFICATIONS G-1.Outline of the Product inch(335.4mmV):Measured diagonally Color CRT 90 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 4 GENERAL SPECIFICATIONS G-16.Antenna Input Impedance VHF/UHF 75 ohm unbalanced G-17.Tuner and Receiving channel 1Tuner Syatem 2Tuner System Tuner : Contactless Electric tuner Oscar(W/O HYPER) Oscar(W/ HYPER) France CATV) Others Coverage channel 21~ 69 Tuning System Frequency syn. Voltage syn. Others G-18.Preset Channel 80 channels G-19.Intermediate Frequency...
  • Page 5 GENERAL SPECIFICATIONS G-27.Dimensions(Approx.) 362 mm(W) 369 mm(D) mm(H) G-28.Weight(Approx.) Net : 12.5 Kg ( - lbs) Gross: 14.5 Kg ( - lbs) G-29.Cabinet Material Cabinet Front: 94HB DECABROM 94V2 NON-DECA 94V0 Cabinet Rear: 94HB DECABROM 94V2 NON-DECA 94V0 Jack Panel: 94HB DECABROM 94V2...
  • Page 6 GENERAL SPECIFICATIONS G-39.Indicator Indicator Standby Rec/OTR T-Rec On Timer NONE (Red) (Red) (Red) G-40.On Screen Display Menu Timer Rec Set Ch Set-up A u t o Tuning Ch Mapping CH Allocation Ch Tuning( Decoder On/Off) TV Set-up On/Off Timer Set Audio Picture VCR Set-up...
  • Page 7 GENERAL SPECIFICATIONS G-45.Accessories Channel Film Dew Caution Sheet Owner's Manual( W/Guarantee Card) [English] AC Plug Adaptor Remote Control Unit Quick Set-up Sheet Rod Antenna ( One Pole Two Pole/ F-Type DIN Type France Type) Loop Antenna( F-Type DIN Type France Type) U/V Mixer Battery (UM- 4 x 2 ) DC Car Cord (Center+)
  • Page 8 GENERAL SPECIFICATIONS G-49.Remote Control Unit: RC-DM Power Source: Battery UM - 4 x 2 Glow in Dark Remocon Total 41 Key 0/AV Ch/Tr/Page Up Power Ch/Tr/Page Down Eject Volume Up Volume Down Play/Up(/ Slow) Mute F.FWD/Right Menu Rew/Left Enter/Hold Stop/Down Cancel/Ch Skip/F.T.B.
  • Page 9 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) (CP302, CP351, CP757, CP401, CP501 and CP502). Remove the 4 screws 1.
  • Page 10 DISASSEMBLY INSTRUCTIONS 1-5: DECK SHIELD PLATE (Refer to Fig. 1-5) Remove the 2 screws 1. Remove the 4 screws 2. Remove the screw 3. Remove the Deck Shield Plate in the direction of arrow (A). Remove the screw 4. Remove the Shield Plate Bottom in the direction of arrow (B). Deck Chassis Deck Shield Plate Syscon PCB...

  • Page 11: 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 12 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 13 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 14 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 15 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 16: 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 17 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 18 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 19: 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 for more than 2 seconds.
  • Page 20 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 21 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 22 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 23: Servicing Fixtures And Tools

    SERVICING FIXTURES AND TOOLS Alignment Tape Back tension cassette gauge Torque cassette gauge Taper nut driver (KT-300NR) ST-C6 ST-C7 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 24: Preparation For Servicing

    PREPARATION FOR SERVICING How to use the Servicing Fixture Unplug the connector CP351, CP757 and CP302, then remove the TV/VCR Block from the set. Unplug the connector CP810, CP820 and CP850, then remove the Main PCB from the VCR Block. Connect as shown in the below figure using the Service Fixture.

  • Page 25: Mechanical Adjustments

    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 26 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 27 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 28 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 29: Vcr Section

    ELECTRICAL ADJUSTMENTS 1. ADJUSTMENT PROCEDURE Read and perform these adjustments when repairing the CH-2 circuits or replacing electrical parts or PCB assemblies. CAUTION When replacing IC's or transistors, use only specified 6.5H silicon grease. (To prevent the damage to IC's and transistors.) CH-1 Fig.
  • Page 30 ELECTRICAL ADJUSTMENTS (TV SECTION) 2-8: HORIZONTAL PHASE Receive the center cross signal from the Pattern 2-4: CONSTANT VOLTAGE Generator. Connect the digital voltmeter to TP401. Using the remote control, set the brightness and Set condition is AV MODE without signal. contrast to normal position.
  • Page 31 ELECTRICAL ADJUSTMENTS 2-10: VERTICAL LINEARITY 2-13: SUB BRIGHTNESS Receive the monoscope pattern (80dB). (RF Input) NOTE: Adjust after performing adjustments in section 2-9. Using the remote control, set the brightness to minimum Receive the cross hatch signal from the Pattern position and contrast to maximum position.
  • Page 32 ELECTRICAL ADJUSTMENTS 3. ELECTRICAL ADJUSTMENT PARTS LOCATION GUIDE (VCR SECTION) TP1001 C1003 TP4002 TP4001 IC601 TU601 L608 CP603 J4501 SYSCON PCB...
  • Page 33 ELECTRICAL ADJUSTMENTS (TV SECTION) J801 TP801 CRT PCB VR502 T501 FOCUS VOLUME FB401 SCREEN VOLUME TP401 MAIN PCB...
  • Page 34 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 35 TV BLOCK DIAGRAM V. OUTPUT IC401 LA78040 THERMAL PROTECTION PUMP SOUND AMP. IC351 AN7511 SP351 SPEAKER Q405 Q406 J351 H. DRIVE H. OUTPUT HEAD PHONE X601 CHROMA/IF 4.433619MHz IC601 FB401 LA76812 SYNC CLMP T'TEXT J801 Q605 VIDEO BUFFER CLMP Y/C_VIDEO PPC1 TINT PFC2...
  • Page 36 Y/C/AUDIO/HEAD AMP/21PIN/IN/OUT BLOCK DIAGRAM VPS/PDC IC IC4002 Q4010 X4001 LC74793/JM 4.433619MHz BUFFER X'tal IN CP4001 6dB AMP 6dB AMP SP-CH2 (L) 2MLPF C CCD CTL TRAP CYL. SP COM fh HPF CLEAR C SQUELCH SP-CH1 (R) SYNC SYNC IN CLPF DELAY N-->P CLOCK...
  • Page 37 MICON/OPERATION BLOCK DIAGRAM SW1001 SYSCON/TIMER/SERVO IC1006 OEC0093A SYSTEM RESET TAB SW /RES 3 OUT IC1002 RE5VS31A POWER_FAIL POWER_FAIL (DC) AT+5.6V MS SEN-A EXT_IN-L EXT_IN_L MS_SEN A TUNER_MUTE Q1009 TU_AUDIO_MUTE_H 4/2FSC IN 2FSC_A MS SEN-B MS_SEN B C.SYNC V.SYNC Q1003 VCR_MUTE VCR_A_MUTE Q1002 CTL(+)
  • Page 38 T'TEXT BLOCK DIAGRAM Y/C_VIDEO D860 Q863 21_B P.CON+5V V.REF Y/C/AUDIO/ D858 HEAD AMP/ 21_R 21PIN/IN/OUT D855 21_G D852 D857 21_Y D859 TRIPLE ANALOG MPXER IC853 D856 Q856 TC74HC4053AF BUFFER DECODER DATA SLICER IC851 ET106 IC852 Q855 ET317 VIDEO BUFFER TSIG SSIG Q852 CSIG...
  • Page 39 PRINTED CIRCUIT BOARDS MAIN/CRT/POWER SW SOLDER SIDE CP820_1 R509 C520 D410 Q509 W012 W010 R520 R423 Q405 R524 Q501 R456 R511 W817 C416 CP810_1 R460 D530 R518 Q508 R449 C417 W043 C525 D534 C438 Q503 R447 W816 C527 D508 T401 C423 B504 ICP504...
  • Page 40 PRINTED CIRCUIT BOARDS OPERATION SOLDER SIDE R761 R754 D791 W001 R350 W811 R351 W002 J701_1 CD351_1 DECK SOLDER SIDE CP101 S101 S105 S106 S104 S102 S103 Q101...
  • Page 41 PRINTED CIRCUIT BOARDS SYSCON (INSERTED PARTS) SOLDER SIDE CP302 C363 C353 CP351 CD810 W069 C4092 C4091 C892 R1068 W338 W291 CP4004 D1019 W288 W068 C863 IC1004 W851 W143 Q1019 Q1018 IC351 L4007 W285 W004 X851 C889 L4010 C351 C4057 W142 W830 W829 W284...
  • Page 42 PRINTED CIRCUIT BOARDS SYSCON (CHIP MOUNTED PARTS) SOLDER SIDE R1074 Q610 C4101 Q609 R4054 Q4007 R4055 C4033 R4052 R4053 R1008 R4512 Q4201 Q4509 R1004 C1006 R1055 R641 C4503 R1029 W863 R639 R1078 R1028 R1080 Q1004 C4107 Q605 R1060 C1040 R4524 Q1002 Q4502 W868...
  • Page 43 Y/C/AUDIO/HEAD AMP SCHEMATIC DIAGRAM (SYSCON PCB) W820 L4002 BUFFER Q4010 100uH 2SC2412K 0607 Y/C_VIDEO FROM/TO CHROMA/IF TU_VIDEO R4040 W803 TU_AUDIO 100 1/4W Y/C_VIDEO FROM/TO POWER Y/C_AUDIO BUFFER Q4006 Q4007 R4055 2SA1037AK 2SC2412K Y/C_AUDIO W905 L4008 R4053 R4054 V.ENV P.CON+9V TP4002 560K 330K P.CON+5V...
  • Page 44 MICON SCHEMATIC DIAGRAM (SYSCON PCB) R1096 FROM/TO Y/C/A/H.AMP D1006 FROM/TO POWER D.V_SYNC D1010 SB10-03A3 C1030 V.REC_ST_H AT+5.6V MESECAM_M SB10-03A3 0.1 F 2FSC_A VCR_POWER_H R1074 X1001 P.CON+5V AT+12V 10MHz H.SW (LDM) MOTOR_GND ENV_DET VCR_A_MUTE C1060 CTL+ 0.1 B CTL- 5.0 5.2 5.2 3.3 2.5 0 2.5 5.2 1.4 1.5 0 4.9 5.1 5.2 5.2 5.2 5.2 5.2 0 NC5.2...
  • Page 45 POWER SCHEMATIC DIAGRAM (SYSCON PCB) P.CON+5V_B FROM/TO Y/C/A/H.AMP P.CON SW P.CON+9V Q1010 2SD734 P.CON+5V 5V REG. IC1005 KIA7805API FROM/TO MICON 9V REG VCR_POWER_H IC1003 KIA7809API AT+5.6V AT+12V P.CON+5V MOTOR_GND HS1001 763WAE0108 AT+5.6V FROM/TO CHROMA/IF 12.0 FROM/TO TV POWER P.CON+9V AT+5.6V P.CON SW CD810 (CP810)
  • Page 46 21PIN/IN/OUT SCHEMATIC DIAGRAM (SYSCON PCB) FROM/TO MICON FROM/TO SOUND AMP SOUND_GND_A ON_TIM_LED L4204 SOUND+ KEY_B SP_OUT 100uH REC_LED T-REC_LED KEY_A FROM/TO POWER D4202 AT+5.6V REMOCON_IN W822 11ES1N STANDBY_H P.CON+5V AT+5.6V_A POWER ON SW Q4201 DTC114EK OS1001 R1102 R1103 R1104 R1105 R1109 R1110 R1106...
  • Page 47 FROM/TO MICON CHROMA/IF SCHEMATIC DIAGRAM SD_L VV-H (SYSCON PCB) TEXT_Y VCR_POWER_H TV_POWER_H R.OUT G.OUT B.OUT POWER_FAIL[DC] DEGAUSS_H TUNER_AGC C663 R614 6.3V FROM/TO SOUND AMP V.REF Q602 AUDIO_OUT IIC_OFF 2SC2412K AFT_M SOUND_GND H.OUT SW H.OUT SW TEST POINT Q603 Q604 SOUND+B R647 DTC114EKA DTC114EKA...
  • Page 48 SOUND AMP SCHEMATIC DIAGRAM (SYSCON PCB) CD302 SPEAKER FROM/TO 21PIN I/O CH12426A CP302 B2B-EH-A SP_OUT SP OUT SOUND GND SOUND+ 8_OHM C363_1 SP351 SOUND_GND_A 810-47-171 1000 FROM/TO MICON M.POWEROFFMUTE_H R353 TV_POWER_H 68K 1/4W R355 TV_A_MUTE 10K 1/4W W878 FROM/TO CHROMA/IF C357 1000 SOUND+B...
  • Page 49 T’TEXT SCHEMATIC DIAGRAM (SYSCON PCB) FROM/TO Y/C/A/H.AMP Y/C_VIDEO L854 FROM/TO MICON 100uH TEXT_RESET W801 AT+5.6V_A BUFFER Q856 D854 L851_1 2SC2412K FROM/TO CHROMA/IF SB10-03A3 10uH SYNC FROM/TO POWER V.REF AT+5.6V Q863 P.CON+5V 2SC2412K R861 D855 1SS133 R869 SYNC BUFFER D858 C857 Q853 1SS133 R866...
  • Page 50 TV POWER SCHEMATIC DIAGRAM (MAIN PCB) DEGAUSS_H FROM/TO DEFLECTION PROTECTOR RELAY DRIVE SOUND+B Q504 D516 2SC1815Y TV.POWER_H VCR.POWER_H 1SS133 DEGAUSS_H P.CON+125V POWER_FAIL AT+125V RY501 SOUND_GND SDT-S-112LMR DEGAUSS COIL C516 R517_1 W830 L503 CP502 8F140018 500V 470P 1.8 2W TV-50P-02-A1 D505 SOUND+B 21DQ09N D509...
  • Page 51 DEFLECTION SCHEMATIC DIAGRAM (MAIN PCB) V.OUTPUT IC401 LA78040 THERMAL PROTECTION PUMP UP TO DY CP401 25.3 12.6 25.5 B05B-DVS FROM/TO CHROMA/IF W805 CP820_1 (CP502) 8283_1312_00_000 SOUND +B SOUND GND H.OUT R427 R425 8.2K 8.2K P.CON+5V C412 R413 V.OUT 500V 390P 10K+-1% R412 R416...
  • Page 52 CRT SCHEMATIC DIAGRAM (CRT PCB) J801_1 HPS3200-010501 FROM CHROMA/IF TP801 CP850 (CD850) R802 8283_0512_00_000 12K 2W R807 CUT OFF G.OUT 132.5 2.7K 1/4W R.OUT RED AMP B.OUT Q804_1 2SC4217 TP802 R808 2.7K 1/4W C809 560P B R811 R805 12K 2W 132.1 GREEN AMP Q805_1...
  • Page 53 OPERATION SCHEMATIC DIAGRAM (OPERATION PCB) J351 HTJ-035-28A R350 L351 33 1/2W HF57T18.5*10*10 R351 33 1/2W W805 FROM/TO 21PIN I/O CD351_1 (CP351) CH27081A FRONT VIDEO IN FRONT A IN L L004 GND/SOUND GND HF57T18.5*10*10 SOUND OUT L SP OUT L POWER/PLAY R761 270 1/4W D792...
  • Page 54 DECK SCHEMATIC DIAGRAM LOADING MOTOR M101 (DECK PCB) S105 BOT SENSOR S106 Q101 RPT-38PB113 S101 S102 S103 S104 FROM/TO MICON CP101 (CP1006) 52044-0445 LDM+ LDM- PCB550 VE8851 NOTE: THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME NOTE: THE DC VOLTAGE AT EACH PART WAS CAUTION: SINCE THESE PARTS MARKED BY ATTENTION:...
  • Page 55 INTERCONNECTIO SCHEMATIC DIAGRAM J351 HALL MAIN ROTOR J701 SENSOR COIL MAGNET FG SENSOR OPERATION PCB PCB030 TE9A16 S101 S102 POWER SW PCB PCB340 HALL HALL SWITCH TEXA36 LOGIC CP1004 AC230V¡` 240V 50Hz CD501 SP351 MOTOR GND SPEAKER CD302 CP302 I LIMIT BROWN SP OUT SOUND GND...
  • Page 56 WAVEFORMS Y/C/AUDIO/HEAD AMP TV POWER 11 PB 6 20V 20µs/div 1 5V 0.1ms/div 2V 10ms/div DEFLECTION 2 5V 50µs/div 7 20V 20µs/div 12 PB 10mV 5ms/div DEFLECTION 8 10V 10ms/div 3 0.5V 10ms/div 13 POWER ON 200mV 50ns/div TV POWER 9 20V 10ms/div 14 POWER ON 4 200mV 50µs/div...
  • Page 57 WAVEFORMS MICON 21 POWER ON 16 POWER ON 26 PB 200mV 10µs/div 1V 50ns/div 50mV 0.5ms/div 17 POWER ON 22 POWER ON 27 PB 50mV 1ms/div 1V 20µs/div 1V 0.5µs/div 23 POWER ON 18 POWER ON 28 PB 50mV 1ms/div 2V 20µs/div 1V 0.5µs/div 19 REC...
  • Page 58 WAVEFORMS 21PIN/IN/OUT 31 POWER ON 36 POWER ON 41 POWER ON 0.5V 10µs/div 0.5V 20µs/div 200mV 0.1µs/div 32 POWER ON 42 POWER ON 37 POWER ON 20mV 1ms/div 200mV 10µs/div 0.5V 20µs/div CHROMA/IF 33 POWER ON 38 POWER ON 43 POWER ON 5mV 1ms/div 0.5V 10ms/div 10mV 10µs/div...
  • Page 59 WAVEFORMS SOUND AMP 46 REC 0.5V 0.5ms/div T'TEXT POWER ON 200mV 50ns/div NOTE: The following waveforms were measured at the point of the corresponding balloon number in the schematic diagram.
  • Page 60 MECHANICAL EXPLODED VIEW J801 PCB110 (CRT PCB) L503 V801 FB401 PCB340 PCB070 (POWER SW PCB) (MAIN PCB) SW501 PCB030 (OPERATION PCB) SP351...
  • Page 61 MECHANICAL EXPLODED VIEW TU601 J4501 PCB010 (SYSCON PCB)
  • Page 62 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) 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 MECHANICAL REPLACEMENT PARTS LIST Location No. TSB P/N Reference No. Description BZ610064 A57054A720 CABINET,FRONT ASS'Y BZ710178 85OP700036 HOLDER,EOT SENSOR BZ710174 771WPA0232 PLATE,JACK BZ710223 752WSAA025 PLATE,POWER SW BZ710011 761WPA0145 HOLDER,FBT BZ710225 752WSA0147 PLATE,SHIELD BOTTOM BZ710082 769WSF0001 METAL SPACER BZ710238 761WPA0164 HOLDER,DECK BZ710039 8995034000 CORD CLIP UL CO.
  • Page 65 CHASSIS REPLACEMENT PARTS LIST Location No. TSB P/N Reference No. Description BZ610065 A57002N420A DECK ASSY A57002N420A 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 66 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 67 ELECTRICAL REPLACEMENT PARTS LIST Location No. TSB P/N Reference No. Description RESISTORS R402 BZ210009 R3X28AR82J R,METAL 0.82 OHM 2W ! R447 BZ210041 R635U2680J R,FUSE 68 OHM 1/2W ! R448 BZ210003 R3K181102J R,METAL 1K OHM 1W ! R449 BZ210018 R5X2CE682J R,CEMENT 6.8K OHM 7W ! R450 BZ210042...
  • Page 68 ELECTRICAL REPLACEMENT PARTS LIST Location No. TSB P/N Reference No. Description DIODES D792 BZ410005 002132Q130 SLZ-936C-07-S-T1 D793 BZ410005 002132Q130 SLZ-936C-07-S-T1 D851 BZ410006 D1VT001330 DIODE,SILICON 1SS133T-77 D852 BZ410006 D1VT001330 DIODE,SILICON 1SS133T-77 D854 BZ410008 D23U1003A3 DIODE,SCHOTTKY SB10-03A3 D855 BZ410006 D1VT001330 DIODE,SILICON 1SS133T-77 D856 BZ410006 D1VT001330...
  • Page 69 ELECTRICAL REPLACEMENT PARTS LIST Location No. TSB P/N Reference No. Description TRANSISTORS Q609 BZ510002 T8YJ2412K0 TRANSISTOR,SILICON 2SC2412KT146 R,S Q610 BZ510002 T8YJ2412K0 TRANSISTOR,SILICON 2SC2412KT146 R,S ! Q804 BZ510009 TC3F042170 TRANSISTOR,SILICON 2SC4217(D,E)-RAC ! Q805 BZ510009 TC3F042170 TRANSISTOR,SILICON 2SC4217(D,E)-RAC ! Q806 BZ510009 TC3F042170 TRANSISTOR,SILICON 2SC4217(D,E)-RAC Q851...
  • Page 70 ELECTRICAL REPLACEMENT PARTS LIST Location No. TSB P/N Reference No. Description COILS &TRANSFORMERS L4009 BZ310005 02167D101K COIL 100 UH L4010 BZ310005 02167D101K COIL 100 UH L4011 BZ310038 021LA6120K COIL L4012 BZ310057 021LA6221K COIL 220 UH L4013 BZ310005 02167D101K COIL 100 UH L4015 BZ310005 02167D101K...
  • Page 71 ELECTRICAL REPLACEMENT PARTS LIST Location No. TSB P/N Reference No. Description MISCELLANEOUS CP820 BZ614106 069E2D0129 CONNECTOR PCB SIDE 8283_1312_00_000 CP850 BZ614013 069E250129 CONNECTOR PCB SIDE 8283_0512_00_000 CD1006 BZ614107 122S040804 CORD JUMPER 1.25X4X83XC CD4005 BZ614108 122S061401 CORD JUMPER 1.25X6X138XC CP1004 BZ614010 0697280590 CONNECTOR PCB SIDE TMC-J08P-B1...
  • Page 72 TOSHIBA VIDEO PRODUCTS PTE. LTD. 438B ALEXANDRA ROAD, BLOCK B #06-01 ALEXANDRA TECHNOPARK SINGAPORE 119968...

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