Toshiba VTV1455 Service Manual
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Toshiba VTV1455 Service Manual

Toshiba color television/video cassette recorder
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SERVICE MANUAL
COLOR TELEVISION/
VIDEO CASSETTE RECORDER
VTV1455

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Summary of Contents for Toshiba VTV1455

  • Page 1 SERVICE MANUAL COLOR TELEVISION/ VIDEO CASSETTE RECORDER VTV1455...

  • 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 directions to wind the Video Tape in the Cassette Case.

  • Page 4: Table Of Contents

    CONTENTS SERVICING NOTICES ON CHECKING ..............A1-1 HOW TO ORDER PARTS ................... A1-1 TAPE REMOVAL METHOD AT NO POWER SUPPLY ..........A1-2 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.REMOVAL OF DECK PARTS ................

  • Page 5: General Specifications

    GENERAL SPECIFICATIONS CRT Size / Visual Size 14 inch / 335.4mmV System CRT Type Normal Deflection degree Magnetic Field BV/BH +0.45G / +0.18G Color System Speaker 1Speaker Position Front Size 1.5 x 2.5 Inch Impedance 8 ohm Sound Output 1.5 W 10%(Typical) 1.0 W System...
  • Page 6 GENERAL SPECIFICATIONS 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 Clock Set Yes (Calendar 24h) Language...
  • Page 7 GENERAL SPECIFICATIONS G-12 Remote Unit RC-DM Control Glow in Dark Remocon 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 Play/Up Play/Up/Slow...
  • 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 Rec/OTR T-Rec On Timer Key Light up Rec/OTR One Touch Playback...

  • 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 4 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 TP804 J801 CP850 MAIN PCB CP810 VR502 CP820 FB401 T501 CD601 R502 VR401 TP502 CP401 CD3001 CD602 CP502 J4201 CP603 TP4201 TU1101 L503 TP1102 CD502 CD501 AC IN IF PCB...

  • Page 38: Micon

    TV BLOCK DIAGRAM SW_VIDEO 21_B T' TEXT TEXT_SYNC 21_G IF/21PIN/ Q602 21_R IN/OUT 21_Y BUFFER Q609 CF605 H_CTL SWITCHING VIDEO SW IC S-TRAP REAR_V_IN IC603 LA7956 MICON TU_AUDIO Q603, Q611 V-DRIVE IC IC401 TDA8174A Q608 IF/21PIN/ REAR_A_IN_L PROTECT IN/OUT BUFFER REC_TU_V JACK_V Q405...
  • Page 39 Y/C/AUDIO/HEAD AMP BLOCK DIAGRAM PDC/VPD DECODER IC4002 SDA5650/X CVBS Q4006 BUFFER Y/C_VIDEO X4001 4.433619MHz Y/C_AUDIO Y/C/AUDIO/CCD/ HEAD AMP IC 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...
  • Page 40 MICON BLOCK DIAGRAM SYSCON/TIMER/SERVO SW1001 IC1006 OEC0113B SYSTEM RESET AV_2 TAB SW 1 OUT /RES IC1002 AV_1 PST3231NR 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 TU_AUDIO_MUTE_H VCR_MUTE VCR_A_MUTE CTL(+) CTL+...
  • Page 41 IF/21PIN/IN/OUT BLOCK DIAGRAM VIF IC IC6001 LA7567B TU1101 MICON CP6001 REC_TU_A TU AUDIO CF6002 Q6005 REC_TU_V TU VIDEO L6006 PRE AMP FRONT AUDIO JACK J2203 Y/C/AUDIO/ HEAD AMP FRONT_A_IN_L FRONT VIDEO JACK Q6001 J2204 VIDEO BUFFER FRONT_V_IN Q4210 TUNER ON/OFF Q4207 MICON EXT_IN_L...
  • Page 42 T' TEXT BLOCK DIAGRAM T'TEXT IC1201 ET-TVT008B X1201 TEXT_RESET STANBY 13875KHz OSC IN OSC OUT MICON OSD_R OSD_G Q1262 OSD_B OSD_Y BLANK BUFFER BLUE 29 GREEN TRIPLE ANALOG MPXER IC 30 RED IC1202 MM1231XF 11 VINP 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 W023 D528 Q505 VR502 CP403 IC506 D507 W814 R507 W005 W022 D515 C531 D508 W015 W014 CP820 W013 D504 R511 D502 IC501 R453 W010 C542 W009 W008 C518 D533 R505 C431 D503 W036...
  • Page 44 PRINTED CIRCUIT BOARDS MAIN/CRT (CHIP MOUNTED PARTS) SOLDER SIDE C807 R812 W808 C806 R821 C802 C413 R531 C541 R532 R523 R510 R553 R516 R520 C554...

  • Page 45: Syscon

    PRINTED CIRCUIT BOARDS SYSCON (INSERTED PARTS) SOLDER SIDE W930 CP3001 Q3001 C3011 IC3001 R1289 W203 IC3003 R3002 W014 D1001 W013 R2203 D3004 W293 R2202 W094 R665 W010 W291 W197 W090 W006 W087 W008 W083 W194 R613 W199 W007 R647 W015 R2216 D610 W192...
  • 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 R1102 R4045 C1210 IC4002 R4044 C1208 R1112 Q301 R4043 R1206 R1197 C320_1 C4091 R1203 R4053 C316 C4033 R1255 R2212...
  • Page 47 PRINTED CIRCUIT BOARDS IF (INSERTED PARTS) SOLDER SIDE CP6001_2 L6008 CF6002 R6023_1 CF6007 L6011 Q6005 L6003 IC6001 Q6001 C6028_1 R6019_1 L6007 C6004 L6006 IF (CHIP MOUNTED PARTS) SOLDER SIDE C6005 W010 R6011 R6003 C6006 W804 R6028 R6027 C6015 W819 C6022 W811 R6025 R6024...

  • 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 Y/C_VIDEO Q4006 FRONT_A_IN_L R4065 TP4002 2SA1037AK W871 REC_TU_A_1 1K 1/4W V.ENV REC_TU_V C4033 Q4007 0.0018 B R4055 2SC2412K Y/C_AUDIO_A W990 FROM/TO CHROMA/IF FROM REGULATOR L4008 R4053 R4054...

  • 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 SCHEMATIC DIAGRAM (SYSCON PCB) FROM/TO MICON AT+5.6V_A TUNER_ON/OFF EXT_IN_L S804Y C4237 TU_AUDIO_MUTE_H 0.001 CH REM+5V C2205 C2206 C4209 TP4201 6.3V VIDEO OUT FROM REGULATOR R4224 75 1/4W P.CON+9V MUTE SW Q4211 2SC2412K 21PIN JACK W833 J4201 0350_9982_05 FROM POWER REM+5V R4217 R4216...
  • Page 52 CHROMA/IF SCHEMATIC DIAGRAM FROM/TO 21PIN IN/OUT VIDEO SW IC IC603 LA7956 FROM/TO MICON (SYSCON PCB) FRONT_V_IN 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 TUNER_CTL 21_G AGC_M 21_R AV_1 21_Y...

  • Page 53: Sound Amp

    SOUND AMP SCHEMATIC DIAGRAM (SYSCON PCB) SOUND AMP IC IC352 AN7523 FROM CHROMA/IF R307_1 SOUND+B C303 SOUND_GND 1000 R301 C306 0.47 SW_AUDIO R306 1/4W C318 1000 TO SPEAKER MUTE Q301 CP354 CD354 2SC2412K TID-X02P-M1 CH12444A SPEAKER FROM MICON SP_OUT C316 SP352_1 SOUND_GND SG04D11BNA...
  • Page 54 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 CP3001 (CP810) 2.2K 1/4W AT+12V B2013H02-9P CD3001 AT+5.6V CU293101 CAP_VCO 5V REG. IC C3008 IC3003 P.CON+5V_C AT+12V...

  • 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 SB140-EIC 10uH W867 AT+5.6V 11E1-EIC C1257 SYNC BUFFER Q1253 6.3V 2SC2412K VDD3V1A R1206 C1219 VDD3V1B R1214 0.022 B 51 FLAG2 42 OSC OUT PLLRC1...
  • Page 56 TV POWER SCHEMATIC DIAGRAM (MAIN PCB) DEGAUSS_H R508 PROTECT DRIVE Q502 C510 2SA1624 D516 R501_1 100V FROM/TO DEFLECTION 2.2 7W C 1SS133 R506 RELAY DRIVE 47K 1/4W SOUND+B Q504 KTC3198 DEGAUSS_H R502 VCR.POWER_H 1 2W RY501 SOUND_GND ALKS321 EMERGENCY DEGAUSS COIL POWER_FAIL L503 AT+13V...
  • Page 57 DEFLECTION SCHEMATIC DIAGRAM (MAIN PCB) TO DY V-DRIVE IC IC401 TDA8174A CP401 A1561WV2-A5P FB401_1 R404_1 11.1 24.5 24.2 FQI-14B004 330K +-1% VIDEO FROM/TO CHROMA/IF CP403 (CD602) 003P-2100 D403 L402 11E1-EIC V.LINEARTY ELH5L4112N C402 VR401 500V 220P R448 R406 R420 2.7K 1/4W 4.7K 1/4W 1K 1W...
  • Page 58 CRT SCHEMATIC DIAGRAM (CRT PCB) TP804 R828 2.7K 1/4W RED AMP Q801 123.5 KTC4217 J801_1 HPS3200-010501 W825 104.1 127.5 R810 2.7K TP805 FROM CHROMA/IF C803 CP850 (CP851) A2001WV2-5P R829 2.7K 1/4W CUT OFF GREEN AMP G.OUT Q802 KTC4217 R.OUT 123.9 B.OUT W829 C808...
  • 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 CP503 CD506 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 5.0V 0.1ms/div 50.0V 20µs/div 11 PB 2.0V 10ms/div DEFLECTION 2 2.0V 20µs/div 7 50.0V 20µs/div 12 PB 50mV 5ms/div TV POWER 3 2.0V 5ms/div 10.0V 5ms/div 13 REC 0.5V 10µs/div 4 200mV 20µs/div 9 20.0V 0.1ms/div 14 REC 0.5V 10µs/div Y/C/AUDIO/HEAD AMP...
  • Page 62 WAVEFORMS MICON 16 REC 21 REC 26 PB 0.5V 10µs/div 2.0V 1ms/div 2.0V 5ms/div 22 REC 27 PB 17 REC 1.0V 10µs/div 2.0V 0.5µs/div 100mV 0.5ms/div 23 REC 28 PB 18 REC 2.0V 20µs/div 2.0V 0.5µs/div 0.5V 0.5ms/div 19 REC 24 REC 30 REC 20.0V 2ms/div...
  • Page 63 WAVEFORMS 32 REC 48 REC 0.5V 0.5ms/div 100mV 0.5ms/div SOUND AMP 45 REC 2V 20µs/div 50 REC 21PIN/IN/OUT 0.5V 0.5ms/div 46 REC 0.5V 10µs/div 52 REC 0.5V 0.5ms/div 47 REC 0.5V 10µs/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 PCB110 (CRT PCB ASS'Y) PCB340 (POWER SW PCB ASS'Y) PCB070 (MAIN PCB ASS'Y) 101B 101G 101E 101F 101D 101C 101H 101A I1-1...
  • Page 65 MECHANICAL EXPLODED VIEW PCB350 (IF PCB ASS'Y) PCB010 (SYSCON PCB ASS'Y) I1-2...

  • Page 66: 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 67 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 68: Mechanical Replacement Parts List

    MECHANICAL REPLACEMENT PARTS LIST Location No. TSB P/N Reference No. Description AE000236 A5A824A720 CABINET,FRONT ASSY 101A AE000237 701WPJC096 CABINET,FRONT 101B AE000238 712WPJB704 FLAP 101C AD301664 713WPA0248 GLASS,LED 101D AD301663 713WPA0249 GUIDE,REMOCON 101E AD301748 735WPA0710 STOPPER,BUTTON 101F AE000239 735WPBA582 BUTTON,FRAME 101G AD301686 743WKA0037 SPRING,FLAP...

  • Page 69: Chassis Replacement Parts List

    CHASSIS REPLACEMENT PARTS LIST Location No. TSB P/N Reference No. Description BZ610284 A5A513I420A DECK ASSY A5A513I420A BZ710564 85OA400234 PINCH ROLLER BLOCK 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 BZ710517...

  • Page 70: Electrical Replacement Parts List

    ELECTRICAL REPLACEMENT PARTS LIST Location No. TSB P/N Reference No. Description RESISTORS R307 BZ210071 R3X28B4R7J R,METAL OXIDE 4.7 OHM 3W R418 BZ210279 R3X181181J R,METAL OXIDE 180 OHM 1W R423 BZ210280 R3X28A391J R,METAL OXIDE 390 OHM 2W ! R447 BZ210281 R65582820J R,FUSE OHM 1/2W R448...
  • Page 71 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 72 ELECTRICAL REPLACEMENT PARTS LIST Location No. TSB P/N Reference No. Description TRANSISTORS Q1016 BZ510002 T8YJ2412K0 TRANSISTOR,SILICON 2SC2412KT146 R,S Q1017 BZ410097 0000M00390 PHOTO TRANSISTOR ST-304L Q1021 BZ510002 T8YJ2412K0 TRANSISTOR,SILICON 2SC2412KT146 R,S Q1101 BZ510074 TDAT00863Y TRANSISTOR,SILICON KTD863_Y-AT Q1102 BZ510002 T8YJ2412K0 TRANSISTOR,SILICON 2SC2412KT146 R,S Q1104 BZ510002 T8YJ2412K0...
  • Page 73 ELECTRICAL REPLACEMENT PARTS LIST Location No. TSB P/N Reference No. Description COILS &TRANSFORMERS L6006 BZ310197 03360K042R COIL,VIDEO IFT 360K042 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 BZ310203...
  • Page 74 ELECTRICAL REPLACEMENT PARTS LIST Location No. TSB P/N Reference No. Description MISCELLANEOUS CD3001 BZ614461 06CU293101 CORD,CONNECTOR CU293101 CD4005 BZ614108 122S061401 CORD,JUMPER 1.25X6X138XC CF6001 BZ613041 1012T6R012 FILTER,CERAMIC SFSH6.0MCB-TF21 CF6002 BZ613009 1022V39R52 FILTER,SAW SAF39.5MZL220ZL CF6005 BZ613028 1012T6R003 FILTER,CERAMIC TRAP TPS6.0MB-TF21 CF6007 BZ613010 1012T04101 FILTER,CERAMIC TRAP MKT41.5MA110P...
  • Page 75 TOSHIBA VIDEO PRODUCTS PTE. LTD. 438B ALEXANDRA ROAD, BLOCK B #06-01 ALEXANDRA TECHNOPARK SINGAPORE 119968...

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