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Toshiba VTV2056 Service Manual

Toshiba color television/video cassette recorder
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SERVICE MANUAL
COLOR TELEVISION/
VIDEO CASSETTE RECORDER
VTV2056

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Summary of Contents for Toshiba VTV2056

  • Page 1 SERVICE MANUAL COLOR TELEVISION/ VIDEO CASSETTE RECORDER VTV2056...

  • 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: Tape Removal Method At No Power Supply

    TAPE REMOVAL METHOD AT NO POWER SUPPLY Remove the VCR block from the main unit. (Refer to item 1 of the DISASSEMBLY INSTRUCTIONS.) Remove the screw 1 of the Deck Chassis and remove the Loading Motor. Rotate the Pinch Roller Cam in the direction of the arrow by hand to slacken the Video Tape. Rotate the Clutch Ass'y either of the derections to wind the Video Tape in the Cassette Case.

  • Page 4: Table Of Contents

    TABLE OF CONTENTS SERVICING NOTICES ON CHECKING ..................A1-1 HOW TO ORDER PARTS ......................A1-1 TAPE REMOVAL METHOD AT NO POWER SUPPLY ............A1-2 TABLE OF CONTENTS ......................A2-1 GENERAL SPECIFICATIONS ....................A3-1~A3-5 DISASSEMBLY INSTRUCTIONS 1. REMOVAL OF MECHANICAL PARTS AND P. C. Boards ..........B1-1, B1-2 2.

  • Page 5: General Specifications

    GENERAL SPECIFICATIONS CRT Size / Visual Size 20 inch / 480.0mmV System CRT Type Normal Deflection degree Magnetic Field BV/BH +0.45G / +0.18G Color System Speaker 1Speaker Position Front Size 3 Inch Impedance 8 ohm Sound Output 2.5 W 10%(Typical) 2.0 W System System...
  • Page 6 GENERAL SPECIFICATIONS Operating Humidity Less than 80% RH On Screen Menu Display Menu Type Character Timer Rec Set Channel Setup Auto Tuning Ch Mapping Ch Tuning Ch Allocation TV Setup On/Off Timer Set Picture Audio VCR Setup Auto Repeat On/Off System Select Scene Repeat System Setup...
  • Page 7 GENERAL SPECIFICATIONS G-12 Remote Unit RC-DM Control Glow in Dark Remocon Format Custom Code 80-64 h Power Source Voltage(D.C) UM size x pcs UM-4 x 2 pcs Total Keys Keys Keys Power 0/AV CH/Tr Up CH/Tr Up/Page Up CH/Tr Down CH/Tr Down /Page Down Volume Up Volume Down...
  • Page 8 GENERAL SPECIFICATIONS G-13 Features Auto Head Cleaning Auto Tracking HQ (VHS Standard High Quality) Auto Power On, Auto Play, Auto Rewind, Auto Eject Auto Shut Off Auto Repeat VIDEO PLUS+(SHOWVIEW,G-CODE) CH Auto Set-Up/Auto Clock Forward / Reverse Picture Search One Touch Playback Auto Tuning Anti-Theft End Call...
  • Page 9 GENERAL SPECIFICATIONS G-15 Interface Switch Front Power Play Pause/Still System Select One Touch Playback Input Select Channel Up Channel Down F.FWD/Cue Eject/Stop Main Power SW Volume Up Volume Down Rew/Rev Rec/OTR Rear Main Power SW Indicator Standby Yes(Red) Rec/OTR Yes(Red) T-Rec Yes(Red) On Timer...

  • Page 10: Disassembly Instructions

    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) (CP354, CP401, CP501 and CP502). Remove the 6 screws 1. Unlock the support 2.
  • Page 11 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). AC Head Cover Remove the 3 screws 4. Remove the Shield Plate Bottom, Shield Plate Bottom (R), Deck Chassis Shield Plate Bottom (L) in the direction of arrow (B).

  • Page 12: Removal Of Deck Parts

    DISASSEMBLY INSTRUCTIONS 2. REMOVAL OF DECK PARTS NOTE In case of the Locker R installation, check if the two 2-1: TOP BRACKET (Refer to Fig. 2-1) positions of Fig.2-3-B are correctly locked. Extend the 2 supports 1. When you install the Cassette Side R, be sure to move Slide the 2 supports 2 and remove the Top Bracket.
  • Page 13 DISASSEMBLY INSTRUCTIONS 2-6: LOADING MOTOR/WORM (Refer to Fig. 2-6-A) 2-7: TENSION ASS'Y (Refer to Fig. 2-7-B) Remove the screw 1. Turn the Pinch Roller Cam clockwise so that the Remove the Loading Motor. Tension Holder hook is set to the position of Fig. 2-7-A Remove the Worm.
  • Page 14 DISASSEMBLY INSTRUCTIONS 2-8: T BRAKE ARM/T BRAKE BAND (Refer to Fig. 2-8-A) Remove the T Brake Spring. Idler Gear Turn the T Brake Arm clockwise and bend the hook Idler Arm Ass'y section to remove it. Unlock the 2 supports 1 and remove the T Brake S Reel Band.
  • Page 15 DISASSEMBLY INSTRUCTIONS 2-10: CASSETTE OPENER/PINCH ROLLER BLOCK/ P5 ARM ASS'Y (Refer to Fig. 2-10-A) Unlock the support 1 and remove the Cassette Opener. Remove the Pinch Roller Block and P5 Arm Ass'y. Cassette Opener Spring Position Fig. 2-11-B 2-12: FE HEAD (RECORDER ONLY) (Refer to Fig. 2-12) Pinch Roller Block Remove the screw 1.
  • Page 16 DISASSEMBLY INSTRUCTIONS 2-14: CAPSTAN DD UNIT (Refer to Fig. 2-14-A) 2-15: MAIN CAM/PINCH ROLLER CAM/JOINT GEAR (Refer to Fig. 2-15-A) Remove the Capstan Belt. Remove the 3 screws 1. Remove the E-Ring 1, then remove the Main Cam. Remove the E-Ring 2, then remove the Pinch Roller Remove the Capstan DD Unit.
  • Page 17 DISASSEMBLY INSTRUCTIONS NOTE 2-18: CASSETTE GUIDE POST/INCLINED BASE S/T UNIT/P4 CAP (Refer to Fig. 2-18-A) 1. When you install the Loading Arm S Unit, Loading Arm T Unit and Main Loading Gear, align each marker. Remove the P4 Cap. Unlock the support 1 and remove the Cassette Guide (Refer to Fig.

  • Page 18: Removal Of Anode Cap

    DISASSEMBLY INSTRUCTIONS 3. After one side is removed, pull in the opposite direction 3. REMOVAL OF ANODE CAP 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 19: Removal And Installation Of Flat Package Ic

    DISASSEMBLY INSTRUCTIONS REMOVAL AND INSTALLATION OF When IC starts moving back and forth easily after desoldering completely, pickup the corner of the IC using FLAT PACKAGE IC a tweezers and remove the IC by moving with the IC desoldering machine. (Refer to Fig. 4-3.) REMOVAL NOTE Put the Masking Tape (cotton tape) around the Flat...
  • Page 20 DISASSEMBLY INSTRUCTIONS INSTALLATION When bridge-soldering between terminals and/or the soldering amount are not enough, resolder using a Thin- Take care of the polarity of new IC and then install the tip Soldering Iron. (Refer to Fig. 4-8.) new IC fitting on the printed circuit pattern. Then solder each lead on the diagonal positions of IC temporarily.

  • Page 21: 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 22 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 23: 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 24: Preventive Checks And Service Intervals

    PREVENTIVE CHECKS AND SERVICE INTERVALS The following standard table depends on environmental conditions and usage. Parts replacing time does not mean the life span for individual parts. Also, long term storage or misuse may cause transformation and aging of rubber parts. The following list means standard hours, so the checking hours depends on the conditions.
  • Page 25 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 26: When Replacing Eeprom (Memory) Ic

    WHEN REPLACING EEPROM (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. To reset clock, either unplug AC cord and allow at least 30 minutes before Power On or alternatively, discharge backup capacitor.

  • Page 27: 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 28: 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 adjusting section for the Tension Arm the Cassette Tape to keep it steady when you want to position so that the Tension Arm top is within the make the tape run without the Cassette Holder.
  • Page 29 MECHANICAL ADJUSTMENTS 1-4: CONFIRMATION OF VSR TORQUE NOTE Install the Torque Gauge (JG002F) and Adapter (JG002B) If the torque is out of the range, replace the following on the S Reel. Set to the Picture Search (Rewind) mode. parts. (Refer to Fig.1-4-B) Check item Replacement Part Then, confirm that it indicates 120~180gf•cm.
  • Page 30 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 31 MECHANICAL ADJUSTMENTS 3. MECHANISM ADJUSTMENT PARTS LOCATION GUIDE 1. Tension Connect P4 Post 2. Tension Arm T Brake Spring 3. Guide Roller T Reel 4. Audio/Control Head S Reel 5. X value adjustment driver hole Adjusting section for the Tension Arm position D2-4...

  • Page 32: Electrical Adjustments

    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 Playback the alignment tape. • Use an isolation transformer when performing any Press and hold the Tracking-Auto button on the remote service on this chassis.
  • Page 33 ELECTRICAL ADJUSTMENTS (REC TUNER) 2-7: VERTICAL POSITION Place the set with Aging Test for more than 15 minutes. NOTE: Adjust after performing adjustments in section 2-6. Connect the oscillator (39.5MHz) to TP1102. Receive the monoscope pattern from the Pattern Connect the digital voltmeter between the pin 7 of Generator.
  • Page 34 ELECTRICAL ADJUSTMENTS 2-10: OSD HORIZONTAL 2-13: BRIGHT CENT Using the remote control, set the brightness and Receive the PAL black pattern*. (RF Input) contrast to normal position. Using the remote control, set the brightness and Activate the adjustment mode display of Fig. 1-1 and contrast to normal position.
  • Page 35 ELECTRICAL ADJUSTMENTS 2-16: Confirmation of Fixed Value (Step No.) Please check if the fixed values of the each adjustment items are set correctly referring below. FUNCTION RF (50Hz) RF (60Hz) AGC GAIN R CUTOFF G CUTOFF B DRIVE V POSI VCO COARSE L1 VCO FINE L1 BRIGHT MAX...
  • Page 36 ELECTRICAL ADJUSTMENTS 3. PURITY AND CONVERGENCE 3-3: STATIC CONVERGENCE ADJUSTMENTS NOTE Adjust after performing adjustments in section 3-2. NOTE Receive the crosshatch pattern from the color bar Turn the unit on and let it warm up for at least 30 generator.
  • Page 37 ELECTRICAL ADJUSTMENTS 4. ELECTRICAL ADJUSTMENT PARTS LOCATION GUIDE (WIRING CONNECTION) CD803 CRT PCB CP803B CP802 R804 TP804 J801 CP850 MAIN PCB CP810 VR502 CP820 FB401 W018 T501 CD601 VR401 CP401 CD3001 CD602 CP502 J4201 CP603 TP4201 TU1101 L503 TP1102 CP851 CD502 CP3001 CD501...

  • Page 38: Micon/Operation

    TV BLOCK DIAGRAM SW_VIDEO 21_B T' TEXT TEXT_SYNC 21_G IF/21PIN/ 21_R Q602 IN/OUT 21_Y BUFFER Q609 CF605 H_CTL VIDEO SW SWITCHING S-TRAP REAR_V_IN IC603 LA7956 MICON/ TU_AUDIO OPERATION Q603, Q611 Q608 V-DRIVE IC IC401 TDA8174A IF/21PIN/ REAR_A_IN_L PROTECT IN/OUT BUFFER REC_TU_V Q405 Q406...
  • Page 39 Y/C/AUDIO/HEAD AMP BLOCK DIAGRAM Q4006 BUFFER Y/C_VIDEO X4001 4.433619MHz Y/C_AUDIO Y/C/AUDIO/HEAD AMP IC FRONT_A_IN_L IC4001 HA118217F CP4001 6dB AMP 6dB AMP SP-CH2 (L) 2MLPF CTL TRAP CYL. SP COM fh HPF CLEAR C SQUELCH SP-CH1 (R) SYNC DELAY CLPF N-->P C CCD VV_H TRAP...
  • Page 40 MICON/OPERATION BLOCK DIAGRAM SYSCON/TIMER/SERVO IC IC1006 OEC0113B SW1001 SYSTEM RESET IC AV_2 TAB SW /RES IC1002 AV_1 Q1013 PST3231NR POWER PAIL POWER FAIL POWER_FAIL (DC) AT+5.6V MS SEN-A EXT_IN_L EXT_IN_L MS_SEN A Q1009 TUNER_ON/OFF DA RGB SW IF/21PIN/ IN/OUT MS SEN-B MS_SEN B Q1003 TUNER_MUTE...
  • Page 41 IF/21PIN/IN/OUT BLOCK DIAGRAM VIF IC IC6001 LA7567B TU1101 MICON/ CP6001 OPERATION REC_TU_A TU AUDIO Y/C/AUDIO/ Q6005 REC_TU_V HEAD AMP TU VIDEO PRE AMP L6006 CF6002 Q6001 VIDEO BUFFER FRONT VIDEO JACK J2204 Q4210 TUNER ON/OFF Q4207 FRONT AUDIO JACK MICON/ J2203 EXT_IN_L PERI SW...
  • Page 42 T' TEXT BLOCK DIAGRAM T'TEXT IC IC1201 ET-TVT008B X1201 TEXT_RESET RSTB 13875KHz OSC IN OSC OUT MICON/ OPERATION OSD_R OSD_G Q1262 OSD_B OSD_Y BLANK BUFFER BLUE 29 GREEN TRIPLE ANALOG MPXER IC 30 RED IC1202 MM1231XF 20 VIDEO IN SYNC TEXT_R TEXT_G TEXT_B...

  • Page 43: Printed Circuit Boards Main/Crt/Power Sw

    PRINTED CIRCUIT BOARDS MAIN/CRT/POWER SW (INSERTED PARTS) SOLDER SIDE CP810 R490 D528 W023 VR502 CP403 IC506 D507 W814 R507 W022 W005 D515 D508 W015 IC501 D502 R511 CP820 W014 W013 R453 W010 W009 C531 C542 W008 D533 C518 R505 C431 D514 D503 W036...
  • Page 44 PRINTED CIRCUIT BOARDS MAIN/CRT (CHIP MOUNTED PARTS) SOLDER SIDE C554 R520 R516 R553 R510 R523 R532 C541 R531 C413 C802 R821 C806 W808 R812 C807...

  • Page 45: Syscon

    PRINTED CIRCUIT BOARDS SYSCON (INSERTED PARTS) SOLDER SIDE W930 C3011 CP3001 Q3001 IC3001 IC3003 W203 R1289 R3002 C1090 W014 D1001 W013 D3004 C1016 W293 W010 R2203 W094 R665 W291 W090 R2202 W008 W006 W087 W197 W083 W194 W199 R647 W007 R613 D608 R2216...
  • Page 46 PRINTED CIRCUIT BOARDS SYSCON (CHIP MOUNTED PARTS) SOLDER SIDE C1006 W829 R1011 C4237 C1168 C2204 R2215 R1115 C4014 C2202 C1102 Q1104 R4047 C4096 Q306 R4045 R1102 C1210 IC4002 R4044 C1208 Q301 R1112 R1206 R4043 R1197 C320 C4091 R1203 R4053 C316 C4033 R1255 R2212...
  • Page 47 PRINTED CIRCUIT BOARDS IF (CHIP MOUNTED PARTS) IF (INSERTED PARTS) SOLDER SIDE SOLDER SIDE CP6001_2 L6008 C6005 CF6002 W010 R6023_1 CF6007 R6011 L6011 Q6005 L6003 C6006 R6003 W804 R6028 R6027 C6015 W819 C6011 C6022 C6028_1 W811 R6025 Q6001 R6024 R6022 S803X R6013 R6019_1...

  • Page 48: Y/C/Audio/Head Amp

    Y/C/AUDIO/HEAD AMP SCHEMATIC DIAGRAM BUFFER Q4017 (SYSCON PCB) 2SC2412K L4002 FROM POWER 100uH 0305 FRONT_V_IN BUFFER V.ENV Y/C_VIDEO Q4006 FRONT_A_IN_L R4065 TP4002 2SA1037AK W871 REC_TU_A_1 1K 1/4W REC_TU_V C4033 0.0018 Q4007 R4055 2SC2412K W990 FROM/TO CHROMA/IF FROM REGULATOR Y/C_AUDIO_A L4008 R4053 R4054 Y/C_AUDIO_A...

  • Page 49: Micon

    D1006 MICON SCHEMATIC DIAGRAM D1010 SB140-EIC SB140-EIC (SYSCON PCB) R1096 FROM/TO REGULATOR AT+5.6V C1072 C1030 VCR_POWER_H 68P CH 0.1 F AT+12V CAP_VCO P.CON+5V_C MOTOR_GND C1060 FROM/TO POWER 0.1 B AT+5.6V_A 0.5 2.2 5.2 3.3 2.6 2.5 5.2 1.5 1.6 5.2 2.6 5.2 0 3.5 3.5 3.6 2.8 5.3 C1047...

  • Page 50: Power

    POWER SCHEMATIC DIAGRAM (SYSCON PCB) TO Y/C/AUDIO/HEAD AMP FRONT_V_IN FRONT_A_IN_L FROM REGULTOR REC_TU_V REC_TU_A_1 P.CON+5V_A P.CON+5V_C AT+30V FROM/TO MICON MO_SYNC REC_SVL-H REC_AFT SW_VIDEO REC_AGC_CTL AT+30V +30V 29.8 P.CON+5V_C L1103 IF_MOD KEY_A P.CON+5V_A 100uH 9A06B KEY_B MO_SYNC R1112 REMOCON_IN R1105 R1173 R1111 BUFFER REC_LED...

  • Page 51: 21Pin In/Out

    21PIN IN/OUT SCHEMATIC DIAGRAM (SYSCON PCB) FROM/TO MICON AT+5.6V_A TUNER_ON/OFF EXT_IN_L C4237 TU_AUDIO_MUTE_H 0.001 CH REM+5V S804Y C2205 C2206 C4209 TP4201 6.3V VIDEO OUT FROM REGULATOR R4224 75 1/4W P.CON+9V MUTE SW 21PIN JACK W833 Q4211 J4201 2SC2412K 0350_9982_05 FROM POWER REM+5V R4217 R4216...

  • Page 52: Chroma/If

    CHROMA/IF SCHEMATIC DIAGRAM FROM/TO 21PIN IN/OUT VIDEO SW IC IC603 LA7956 FROM/TO MICON (SYSCON PCB) H_CTL REAR_V_IN VCR_POWER_H L613 video switch P.CON+8V_A TV_POWER_H driver control REAR_A_IN_L 100uH 0305 P.CON+5V_A TU_AUDIO PROTECT JACK_VIDEO DEGAUSS_H 21_B POWER_FAIL[DC] AV_2 21_G TUNER_CTL AGC_M 21_R AV_1 21_Y L609...

  • Page 53: Sound Amp

    SOUND AMP SCHEMATIC DIAGRAM (SYSCON PCB) SOUND AMP IC IC352 AN7523N HS352_1 763WSA0021 FROM CHROMA/IF W813 SOUND+B C303 SOUND_GND 1000 R301 C306 W849 SW_AUDIO 0.47 R306 1K 1/4W C318 1000 MUTE Q301 TO SPEAKER 2SC2412K CP354 CD354 TID-X02P-M1 SPEAKER CH12444A SP351_1 SP_OUT C316...

  • Page 54: Regulator

    REGULATOR SCHEMATIC DIAGRAM (SYSCON PCB) 9V REG IC IC3001 KIA78R09API D3003 11E1-EIC TO Y/C/AUDIO/HEAD AMP 13.0 P.CON+9V P.CON+9V P.CON+5V_C FROM/TO MICON FROM TV POWER R3002 VCR_POWER_H CD3001 CP3001 (CP810) 2.2K 1/4W AT+12V B2013H02-9P CU293101 AT+5.6V CAP_VCO C3008 5V REG. IC P.CON+5V_C AT+12V IC3003...

  • Page 55: T'text

    T’TEXT SCHEMATIC DIAGRAM (SYSCON PCB) L1203 10uH 0305 Q1101 R1115 KTD863_Y BUFFER Q1104 2SC2412K R1108 FROM REGULATOR P.CON+9V P.CON+5V_C D1203 L1205 D1202 10uH SB140-EIC W867 AT+5.6V 11E1-EIC C1257 X1201 SYNC BUFFER 100CT01302 6.3V Q1253 13875KHz 2SC2412K VDD3V1A R1206 C1219 VDD3V1B R1214 0.022 B 51 FLAG2...
  • Page 56 TV POWER SCHEMATIC DIAGRAM (MAIN PCB) DEGAUSS_H R508 PROTECT DRIVE Q502 C510 RELAY DRIVE 2SA1624 Q504 D516 R501_1 KTC3198 100V FROM/TO DEFLECTION 2.2 7W C R506 1SS133 47K 1/4W SOUND+B DEGAUSS_H R502 VCR.POWER_H 0.82 2W RY501 SOUND_GND T501_2 ALKS321 81350744 EMERGENCY DEGAUSS COIL (LKS1af-12V)
  • Page 57 DEFLECTION SCHEMATIC DIAGRAM (MAIN PCB) TO DY V-DRIVE IC IC401 TDA8174A CP401 A1561WV2-A5P FB401_1 11.1 24.5 24.2 FQI-20B003 R404 330K 1/4W VIDEO FROM/TO CHROMA/IF CP403 (CD602) 003P-2100 D403 L402 11E1-EIC V.LINEARTY ELH5L4112N C402 VR401 500V 220P R406 R420 R448 2.7K 1/4W 8.2K 1/4W R415...
  • Page 58 CRT SCHEMATIC DIAGRAM (CRT PCB) CRT PCB TP804 R828 2.7K 1/4W RED AMP Q801 123.5 KTC4217 J801_1 HPS3200-010501 W825 104.1 127.5 R810 4.7K TP805 FROM CHROMA/IF C803 CP850 (CP851) A2001WV2-5P R829 2.7K 1/4W CUT_OFF G.OUT GREEN AMP Q802 R.OUT 123.9 KTC4217 B.OUT W829...
  • Page 59 IF SCHEMATIC DIAGRAM (IF PCB) C6004 CF6005 TPS6.0MB R6019_1 L6007 R6020 15uH 330 1/4W C6005 0.01 L6006 360K042 C6028_1 100P CH VIDEO C6006 W806 W819 0.01 B L6001 C6007 L6003 BUFFER Q6001 2.2uH 22uH 68P CH 2SA608KF-NP C6019 0.01 B C6001 0.01 B S803X...
  • Page 60 INTERCONNECTION DIAGRAM HALL MAIN ROTOR SENSOR COIL MAGNET FG SENSOR CAPSTAN DD UNIT ASS’Y M2001 IF PCB PCB350 VEB983 HALL HALL SWITCH LOGIC CP1001 LOADING MOTOR M101 CP820 CD601 CP601 CAP_FG CD506 CP503 EMERGENCY EMERGENCY CAP_VCO +B(A) SOUND+B SOUND+B +B(B) SOUND GND SOUND GND CAP/M/F/R...

  • Page 61: Tv Power

    WAVEFORMS TV POWER 1 5V 0.1ms/div 50V 20µs/div 12 PB 50mV 5ms/div DEFLECTION 2 2V 20µs/div 7 50V 20µs/div 13 REC 0.5V 10µs/div TV POWER 3 2V 5ms/div 10V 5ms/div 14 REC 0.5V 10µs/div Y/C/AUDIO/HEAD AMP 15 REC 4 200mV 20µs/div 10 REC 2V 20µs/div 0.5V 10µs/div...
  • Page 62 WAVEFORMS 17 REC 22 REC 27 PB 100mV 0.5ms/div 1V 10µs/div 2V 0.5µs/div 18 REC 23 REC 28 PB 0.5V 0.5ms/div 2V 20µs/div 2V 0.5µs/div 19 REC 24 REC 30 REC 20V 2ms/div 2V 5ms/div 2V 1ms/div POWER 20 REC 31 REC 25 REC 20V 5µs/div...
  • Page 63 WAVEFORMS SOUND AMP 45 REC 50 REC 2V 20µs/div 0.5V 0.5ms/div 21PIN/IN/OUT 46 REC 0.5V 10µs/div 52 REC 0.5V 0.5ms/div 47 REC 0.5V 10µs/div 48 REC 100mV 0.5ms/div NOTE: The following waveforms were measured at the point of the corresponding balloon number in the schematic diagram.

  • Page 64: Mechanical Exploded Views

    MECHANICAL EXPLODED VIEW 102B 102B 102A 102B PCB110 (CRT PCB ASS'Y) PCB340 (POWER SW PCB ASS'Y) PCB070 (MAIN PCB ASS'Y) 101C 101H 101F 101E 101G 101D 101B 101A I1-1...
  • Page 65 MECHANICAL EXPLODED VIEW PCB350 (IF PCB ASS'Y) PCB010 (SYSCON PCB ASS'Y) I1-2...
  • Page 66 MECHANICAL EXPLODED VIEW (PACKING DIAGRAM) 137, 138, 139, 140, 141 CD001, TM101 I1-3...

  • Page 67: Chassis Exploded Views

    CHASSIS EXPLODED VIEW (TOP VIEW) CD1501 M2003 UN4001 H5002 H5001 CD1502 M101 NOTE: Applying positions AA for the grease are CLASS MARK displayed for this section. GREASE Check if the correct grease is applied for each position. I2-1...
  • Page 68 CHASSIS EXPLODED VIEW (BOTTOM VIEW) CD1501 M2001 CD1502 NOTE: Applying positions AA for the grease are CLASS MARK displayed for this section. GREASE Check if the correct grease is applied for each position. I2-2...

  • Page 69: Mechanical Replacement Parts List

    MECHANICAL REPLACEMENT PARTS LIST Location No. TSB P/N Reference No. Description AE003395 7A701A091A FRONT CABI ASS'Y 101A AE003396 701WPJC597 CABINET,FRONT 101B AD301713 7235490022 BADGE,BRAND 101C AE003397 712WPJC010 FLAP 101D AD301719 713WPA0250 GLASS,LED 101E AD301718 713WPA0251 GUIDE,REMOCON 101F AD301661 735WPAA493 STOPPER,BUTTON 101G AE003398 735WPBB042...

  • Page 70: Chassis Replacement Parts List

    CHASSIS REPLACEMENT PARTS LIST Location No. TSB P/N Reference No. Description BZ610284 A5A513I420A DECK ASSY A5A513I420A AE002754 85OA400240 PINCH ROLLER BLOCK (VA) BZ710796 85OP700039 COVER,BOT BZ710193 85OP200290 BELT,CAPSTAN (S) BZ710515 85OP600581 WORM BZ710094 85OP500083 BASE,AC HEAD BZ710112 85OP800324 SPRING,AC HEAD BZ710516 85OA000459 MAIN CHASSIS ASS'Y...

  • Page 71: Electrical Replacement Parts List

    ELECTRICAL REPLACEMENT PARTS LIST Location No. TSB P/N Reference No. Description RESISTORS R418 AD301015 R3X181151J R,METAL OXIDE 150 OHM 1W R423 AD301119 R3X28A271J R,METAL OXIDE 270 OHM 2W ! R447 BZ210281 R65582820J R,FUSE OHM 1/2W R448 AD300043 R3X181102J R,METAL OXIDE OHM 1W ! R501 BZ210267...
  • Page 72 ELECTRICAL REPLACEMENT PARTS LIST Location No. TSB P/N Reference No. Description DIODES D1002 BZ410006 D1VT001330 DIODE,SILICON 1SS133T-77 D1003 BZ410095 0010100320 INFRARED LED LNA2702L010R D1006 BZ410077 D2WXSB1400 DIODE,SCHOTTKY SB140-EIC D1010 BZ410077 D2WXSB1400 DIODE,SCHOTTKY SB140-EIC D1017 BZ410006 D1VT001330 DIODE,SILICON 1SS133T-77 D1021 BZ410006 D1VT001330 DIODE,SILICON 1SS133T-77...
  • Page 73 ELECTRICAL REPLACEMENT PARTS LIST Location No. TSB P/N Reference No. Description TRANSISTORS Q1016 AE002626 T8YJ2412K0 TRANSISTOR,SILICON 2SC2412KT146 R,S Q1017 BZ410097 0000M00390 PHOTO TRANSISTOR ST-304L Q1021 AE002626 T8YJ2412K0 TRANSISTOR,SILICON 2SC2412KT146 R,S Q1101 BZ510074 TDAT00863Y TRANSISTOR,SILICON KTD863_Y-AT Q1102 AE002626 T8YJ2412K0 TRANSISTOR,SILICON 2SC2412KT146 R,S Q1104 AE002626 T8YJ2412K0...
  • Page 74 ELECTRICAL REPLACEMENT PARTS LIST Location No. TSB P/N Reference No. Description COILS &TRANSFORMERS L6007 BZ310043 021LA6150K COIL L6008 BZ310049 021LA6R22M COIL 0.22 UH L6011 BZ310078 021LA6R68M COIL 0.68 UH T401 BZ310157 045009003J TRANS,HORIZONTAL DRIVE ETH09K14BZ ! T501 BZ310207 0481350744 TRANSFORMER,SWITCHING 81350744 JACKS ! J801...
  • Page 75 ELECTRICAL REPLACEMENT PARTS LIST Location No. TSB P/N Reference No. Description MISCELLANEOUS CF6002 BZ613009 1022V39R52 FILTER,SAW SAF39.5MZL220ZL CF6005 BZ613028 1012T6R003 FILTER,CERAMIC TRAP TPS6.0MB-TF21 CF6007 BZ613010 1012T04101 FILTER,CERAMIC TRAP MKT41.5MA110P CF6008 BZ614185 1012T03102 FILTER,CERAMIC TRAP MKT31.5MA110P CP1001 BZ614289 06972C0010 CONNECTOR PCB SIDE TMC-J12P-B2 CP3001 BZ614462...
  • Page 76 TOSHIBA VIDEO PRODUCTS PTE. LTD. 438B ALEXANDRA ROAD, BLOCK B #06-01 ALEXANDRA TECHNOPARK SINGAPORE 119968...

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