Roadstar TLV1085 Service Manual

Roadstar TLV1085 Service Manual

Color television/video cassette recorder

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TLV1085

SERVICE MANUAL

COLOR TELEVISION/VIDEO CASSETTE RECORDER
ORIGINAL
MFR'S VERSION A
Design and specifications are subject to change without notice.

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Daniel
August 8, 2025

How to i power on the tv past standby? Plugged in i press the power. Standby light comes on but then no picture

Summary of Contents for Roadstar TLV1085

  • Page 1: Service Manual

    TLV1085 SERVICE MANUAL COLOR TELEVISION/VIDEO CASSETTE RECORDER ORIGINAL MFR’S VERSION A Design and specifications are subject to change without notice.
  • 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: Table Of Contents

    CONTENTS SERVICING NOTICES ON CHECKING ..................A1-1 HOW TO ORDER PARTS ......................A1-1 CONTENTS ..........................A2-1 GENERAL SPECIFICATIONS ....................A3-1~A3-4 DISASSEMBLY INSTRUCTIONS 1. REMOVAL OF MECHANICAL PARTS AND P. C. BOARDS ..........B1-1, B1-2 2. REMOVAL OF DECK PARTS ..................... B2-1~B2-5 3.
  • Page 4: General Specifications

    GENERAL SPECIFICATIONS G - 1 CRT Size / Visual Size 10 inch / 222.8mmV System CRT Type Normal Deflection degree Magnetic Field BV/BH +0.45G/0.18G Color System Speaker 1Speaker Position Side Size 3 inch Impedance 8 ohm Sound Output 1.2 W 10%(Typical) 0.8 W G - 2...
  • Page 5 GENERAL SPECIFICATIONS 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 G-CODE(or SHOWVIEW or PLUSCODE)No. Entry Stereo/Audio Output Bilingal NICAM...
  • Page 6 GENERAL SPECIFICATIONS F.Fwd/Right Rew/Left Pause/Still Pause Stop/Down Rec/OTR Eject Counter Reset Speed Timer Rec TV Monitor TV Monitor /Rec Monitor Program Program /V+ Auto Tracking Auto Tracking /Reveal Menu Enter Enter/Hold Cancel/Ch Skip Cancel/Ch Skip/F-T-B Index Index /Sub Page Call Text/Mix/TV Sleep Timer Mute...
  • Page 7 GENERAL SPECIFICATIONS Dew/AHC Caution Sheet AC Plug Adapter Quick Set-up Sheet Battery UM size x pcs UM-4 x 2 pcs OEM Brand AC Cord AV Cord (2Pin-1Pin) 21pin-RCA Cable Registration Card PTB Sheet Anti-Theft Sheet Euro Warranty Information Sheet G - 1 5 Interface Switch Front...
  • Page 8: 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) (CP351, CP401, CP403, CP501, CP4503 and CP4504). Remove the 4 screws 1.
  • Page 9 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 10: 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 11 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 12 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 13 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 14 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 15: 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 16: Removal Of Deflection Yoke

    DISASSEMBLY INSTRUCTIONS 4. Insert one end of the Anode Support into the anode button, then the other as shown in Fig. 3-5. Support Fig. 3-5 Confirm that the Support is securely connected. Put on the Rubber Cap without moving any parts. 4.
  • Page 17: 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 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

    PREVENTIVE CHECK AND SERVICE TERVALS 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 TERVALS 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

    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 (For 2 head 1 speed model, (For 2 head 2 speed model) JG002B Adapter JG005 Post Adjustment 4 head model) VHS Alignment Tape JG002E Dial Torque Gauge Screwdriver VHS Alignment Tape JG001C (VP S-LI6 ) (10~90gf•cm) Part No.
  • Page 24: 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 25 MECHANICAL ADJUSTMENTS 1-4: 2. CONFIRMATION AND ADJUSTMENT CONFIRMATION OF VCR TORQUE 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 26 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 27 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 D1-4...
  • Page 28: Electrical Adjustments

    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. (YG6260M) (To prevent the damage to IC's and transistors.) CH-1 Fig.
  • Page 29 ELECTRICAL ADJUSTMENTS (TV SECTION) 2-9: HORIZONTAL PHASE Receive the center cross signal from the Pattern 2-4: CONSTANT VOLTAGE (AC) 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 30 ELECTRICAL ADJUSTMENTS 2-11: VERTICAL LINEALITY 2-14: SUB BRIGHTNESS Receive the monoscope pattern. (RF Input) NOTE: Adjust after performing adjustments in section 2-10. Using the remote control, set the brightness to minimum Receive the cross hatch signal from the Pattern position and contrast to maximum position. Generator.
  • Page 31 ELECTRICAL ADJUSTMENTS 3. ELECTRICAL ADJUSTMENT PARTS LOCATION GUIDE (VCR SECTION) TP1001 J4501 TP4002 TP4001 IC601 TU601 L608 CP603 SYSCON PCB D2-4...
  • Page 32 ELECTRICAL ADJUSTMENTS (TV SECTION) J801 TP801 CRT PCB VR402 TP401 T501 VR501 VR502 FOCUS VOLUME T502 FB401 SCREEN VOLUME MAIN PCB D2-5...
  • Page 33: Purity And Convergence

    ELECTRICAL ADJUSTMENTS PURITY AND CONVERGENCE 4-3: STATIC 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. minutes before performing the following adjustments.
  • Page 34: Y/C/Audio/Head Amp/21Pin/In/Out

    V. OUTPUT IC TV BLOCK DIAGRAM IC401 LA78040 THERMAL PROTECTION SOUND AMP IC PUMP IC351 AN7511 SP351 SPEAKER Q405 Q406 J351 H. DRIVE H. OUTPUT X601 HEAD PHONE CHROMA/IF IC 4.433619MHz IC601 FB401 LA76812 T' TEXT SYNC CLMP J801 Q605 VIDEO BUFFER CLMP...
  • Page 35 Y/C/AUDIO/HEAD AMP/21PIN/IN/OUT BLOCK DIAGRAM Q4010 X4001 4.433619MHz BUFFER Y/C/AUDIO/ CCD/HEAD AMP IC IC4001 HA118217F CP4001 6dB AMP 6dB AMP SP-CH2 (L) 2MLPF CTL TRAP C CCD CYL. SP COM fh HPF CLEAR C SQUELCH SP-CH1 (R) SYNC DELAY CLPF N-->P 2FSC_A CLOCK CLPF...
  • Page 36: Power

    MICON/OPERATION BLOCK DIAGRAM SW1001 SYSCON/TIMER/SERVO IC IC1006 OEC0093B SYSTEM RESET IC TAB SW /RES 3 OUT IC1002 RE5VS31A AT+5.6V MS SEN-A EXT_IN-L EXT_IN_L MS_SEN A TUNER_MUTE TU_AUDIO_MUTE_H Q1009 4/2FSC IN 2FSC_A MS SEN-B MS_SEN B V.SYNC C.SYNC Q1003 VCR_MUTE VCR_A_MUTE Q1002 CTL(+) CTL+...
  • Page 37 T' TEXT BLOCK DIAGRAM Y/C_VIDEO Q863 D860 21_B V.REF P.CON+5V Y/C/AUDIO/ D858 HEAD AMP/ 21_R 21PIN/IN/OUT D855 21_G D852 D857 21_Y D859 TRIPLE ANALOG MPXER IC IC853 D856 Q856 TC74HC4053AF BUFFER DECODER IC IC851 ET106 DATA SLICER IC Q855 IC852 ET317 BUFFER VIDEO SSIG...
  • Page 38: Power Block Diagram

    POWER BLOCK DIAGRAM 5V REG. IC IC1005 KIA7805API Q1010 P.CON SW. P.CON+5V_B CD810 AT+30V 5V REG. IC IC1004 KIA7805API Q1007, Q1019 P.CON SW. P.CON+5V 9V REG. IC Q1008, Q1018 IC1003 KIA7809API P.CON SW. P.CON+9V VCR_POWER-H Q1012, Q1013 P.CON SW. MOTOR+12V MICON/ OPERATION T-REC_LED...
  • Page 39: Printed Circuit Boards Main/Crt

    PRINTED CIRCUIT BOARDS MAIN/CRT SOLDER SIDE RY503 D518 CP820 CP803A Q511 D524 D522 ICP502 R527 C551 Q514 W826 C527 CP502 Q501 D547 L503 Q503 Q518 W050 D532 D539 C511 R524 R512 D512 R423 D538 W011 S804X D551 D515 S805X C531 D553 R555 D537...
  • Page 40: Syscon/21Pin

    PRINTED CIRCUIT BOARDS SYSCON/21PIN (INSERTED PARTS) DECK SOLDER SIDE SOLDER SIDE S101 CP101 B4505 S105 CP351 S106 IC1004 CD810 S104 S103 W269 Q101 D1019 R1068 J4501 S803Y TP4501 R1073 S102 L4504 L4503 D4512 Q1017 Q1018 CP4004 Q1019 R1081 IC351 W310 B4506 CP4502 CP4501...
  • Page 41 PRINTED CIRCUIT BOARDS SYSCON/21PIN (CHIP MOUNTED PARTS) SOLDER SIDE S815Y C680 R4525 Q4007 Q610 R4054 C4033 C4101 R4052 R4053 R1008 R1004 Q609 S815X R4532 C1006 Q4509 CD1001 R1055 R1028 C1040 C4205 R1029 R4502 R1060 C1035 Q1004 R621 C4107 R1061 Q605 C1055 Q1002 R1062...
  • Page 42: Y/C/Audio/Head Amp

    Y/C/AUDIO/HEAD AMP SCHEMATIC DIAGRAM W820 (SYSCON PCB) L4002 BUFFER Q4010 100uH 2SC2412K 0607 FROM/TO CHROMA/IF W803 Y/C_VIDEO TU_VIDEO R4040 TU_AUDIO FROM/TO POWER/OPERATION 100 1/4W Y/C_AUDIO Y/C_VIDEO BUFFER Q4007 Q4006 2SC2412K R4055 2SA1037AK Y/C_AUDIO W905 V.ENV S811Y L4008 R4053 R4054 TP4002 P.CON+9V JWF-50K-1 560K...
  • Page 43: Micon

    MICON SCHEMATIC DIAGRAM (SYSCON PCB) D1006 FROM/TO POWER/OPERATION FROM/TO Y/C/AUDIO/HEAD AMP R1096 D1010 SB140-EIC AT+5.6V D.V_SYNC SB140-EIC C1030 V.REC_ST_H MESECAM_M VCR_POWER_H 0.1 F P.CON+5V 2FSC_A MOTOR+12V R1074 (LDM) X1001 MOTOR_GND REMOCON_IN 10MHz H.SW AT+5.6V_A ENV_DET VCR_A_MUTE C1060 REC_LED CTL+ T-REC_LED 0.1 B CTL- KEY_A...
  • Page 44: Power/Operation

    POWER/OPERATION SCHEMATIC DIAGRAM (SYSCON PCB) P.CON SW Q1013 KTA1281_Y TO Y/C/AUDIO/HEAD AMP 12.8 12.0 MOTOR+12V P.CON+9V P.CON+5V 12.0 5V REG. IC IC1005 KIA7805API FROM/TO MICON P.CON SW KEY_B Q1012 REC_LED KRC111RTK T-REC_LED KEY_A REMOCON_IN AT+5.6V AT+5.6V_A VCR_POWER_H D1018 P.CON+5V_B MOTOR+12V SB140-EIC 9V REG IC P.CON+5V...
  • Page 45: Chroma/If

    CHROMA/IF SCHEMATIC DIAGRAM FROM/TO MICON (SYSCON PCB) SD-L/AFC-OFF-H VV-H TEXT_Y TV_POWER_H R.OUT G.OUT B.OUT POWER_FAIL[DC] TUNER_AGC C663 6.3V R614 TO SOUND AMP IIC_OFF V.REF AFT_M Q602 AUDIO_OUT 2SC2412K H.OUT SW H.OUT SW SOUND_GND TEST POINT Q603 Q604 CP603 SOUND+B R647 KRC102RTK KRC102RTK R650...
  • Page 46: Sound Amp

    SOUND AMP SCHEMATIC DIAGRAM (SYSCON PCB) FROM/TO OPERATION CP351 CD351 SPEAKER CH12444A B2B-EH-A SP_OUT SP_OUT SOUND_GND SOUND+ C363_1 8_OHM 1000 SP351 SOUND_GND NS-300RW W819 R353_1 FROM MICON TV_POWER_H R355 TV_A_MUTE 10K 1/4W M.POWEROFFMUTE_H FROM CHROMA/IF SOUND+B SOUND_GND AUDIO_OUT R351_1 4.7K C355 S803Y PCB010...
  • Page 47 T’TEXT SCHEMATIC DIAGRAM (SYSCON PCB) FROM Y/C/AUDIO/HEAD AMP Y/C_VIDEO L854 100uH W801 BUFFER Q856 D854 TO CHROMA/IF 2SC2412K SB140-EIC SYNC L851 FROM POWER/OPERATION 10uH V.REF AT+5.6V Q863 P.CON+5V 2SC2412K R861 D855 1SS133 R869 SYNC BUFFER D858 C857 Q853 1SS133 R866 2SC2412K W921 D857...
  • Page 48 21PIN/IN/OUT SCHEMATIC DIAGRAM (SYSCON PCB) TO T’TEXT CD4501 CP4501 CP4504 R4540 2F041207 IMSA-9604S-04Z14 IMSA-9604S-04Z14 21_Y 21_B 21_B 21_B 21_B 21_G 21_G 21_G 21_G 21_R 21_R 21_R 21_R 21_Y 21_Y 21_Y FROM MICON EXT_IN_L VV-H C4509 TU_AUDIO_MUTE_H W885 R4523 R4522 R4521 R4538 D4511 MUTE SW...
  • Page 49 TV POWER SCHEMATIC DIAGRAM (MAIN PCB) DC JACK J503 HEC0824-010010 RY503 SDT-S-109LMR D550 MTZJ5.6B D502 1SS133 DC POWER SW Q501 KTC3198 PROTECTOR DC POWER SW. Q518 Q511 10.9 DTC114ES KTC3198 PROTECTOR/AC,DC SW D512 Q514 DTC114ES 1SS133 D501 MTZJ10B D546 MOTOR+12V R531 R535 FROM/TO DEFLECTION...
  • Page 50 DEFLECTION SCHEMATIC DIAGRAM (MAIN PCB) CP403 TV-50P-02-A1 DEGAUSS COIL V.OUTPUT IC L508 K001 K002 K003 IC401 LA78040 8R090008 W888 TMM17538 TMM17538 TMM17538 THERMAL PROTECTION PUMP UP DEGAUSS SW Q401 26.3 12.5 25.9 DTA114ES W884 TO DY DY801 TO CRT KDY3CFB23M CP401 B04B-DVS C412...
  • Page 51 CRT SCHEMATIC DIAGRAM (CRT PCB) 132.9 104.1 132.8 132.5 FROM CHROMA/IF TP801 R802 CP850 (CD850) J801 8283_0512_00_000 HPS3200-010501 15K 1W CUT_OFF 132.5 G.OUT R807 R.OUT RED AMP 2.7K 1/2W B.OUT Q804 2SC3415 R811 470 1/4W C809 330P B TP802 R805 15K 1W 132.1 GREEN AMP...
  • Page 52 DECK SCHEMATIC DIAGRAM (DECK PCB) LOADING MOTOR M101 S105 BOT SENSOR S106 Q101 RPT-38PB113 S101 S102 S103 S104 FROM/TO MICON CP101 52044-0445 LDM+ LDM- PCB550 VE8851 CAUTION: SINCE THESE PARTS MARKED BY ATTENTION: LES PIECES REPAREES PAR UN ETANT NOTE: THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME NOTE: THE DC VOLTAGE AT EACH PART WAS CRITICAL FOR SAFETY,USE ONES...
  • Page 53 J4501 INTERCONNECTION DIAGRAM HALL MAI N ROTOR SENSOR COIL MAGNE T FG SENSOR HEADPHONE JACK J351 21PIN PCB PCB260 VEX931 FRONT AV/V JACK (MONO) HALL HALL J1001 J100 2 SWITCH VIDEO AUDIO LOGIC N C H N C H CP1004 MOTOR_GND SPEAKER CD351...
  • Page 54 WAVEFORMS TV POWER 6 20V 20µs/div 1 5V 0.1ms/div 12 PB 10mV 5ms/div DEFLECTION 2 5V 50µs/div 7 20V 20µs/div 13 POWER ON 200mV 50ns/div DEFLECTION 8 10V 10ms/div 3 0.5V 10ms/div 14 POWER ON 0.5V 10µs/div TV POWER 15 POWER ON 4 200mV 50µs/div 10 2V 5µs/div 2V 20µs/div...
  • Page 55 WAVEFORMS 17 POWER ON 22 POWER ON 27 PB 50mV 1ms/div 1V 20µs/div 1V 0.5µs/div 23 POWER ON 28 PB 18 POWER ON 2V 20µs/div 50mV 1ms/div 1V 0.5µs/div 19 REC 24 POWER ON 29 PB 10V 5µs/div 2V 5ms/div 2V 20µs/div 25 PB 30 PB...
  • Page 56 WAVEFORMS 32 POWER ON 37 POWER ON 42 POWER ON 200mV 10µs/div 20mV 1ms/div 0.5V 20µs/div CHROMA/IF 38 POWER ON 43 POWER ON 33 POWER ON 0.5V 10ms/div 10mV 10µs/div 5mV 1ms/div 39 POWER ON 44 POWER ON 34 POWER ON 200mV 50µs/div 0.5V 10µs/div 5mV 1ms/div...
  • Page 57: T' Text

    WAVEFORMS 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 58: Mechanical Exploded Views

    MECHANICAL EXPLODED VIEW J801 PCB110 (CRT PCB) L508 V801 FB401 PCB070 (MAIN PCB) SP351...
  • Page 59 MECHANICAL EXPLODED VIEW TU601 PCB010 (SYSCON PCB)
  • Page 60: Chassis Exploded Views

    CHASSIS EXPLODED VIEW (TOP VIEW) M2003 UN4001 H5001 H5002 D1100 M101 PCB550 (DECK PCB ASS'Y) NOTE: Applying positions AA, AB, AC, AD and BA for CLASS PART NO. MARK the grease or oil are displayed for this section. GREASE G-555G Check if the correct grease or oil is applied for G-488M each position.
  • Page 61 CHASSIS EXPLODED VIEW (BOTTOM VIEW) M2001 NOTE :Applying positions AA, AB, AC, AD and BA for CLASS PART NO. MARK the grease or oil are displayed for this section. GREASE G-555G Check if the correct grease or oil is applied for G-488M each position.
  • Page 62: Mechanical Replacement Parts List

    MECHANICAL REPLACEMENT PARTS LIST REF. NO. PART NO. DESCRIPTION A547B8B720 CABINET,FRONT ASS'Y 753WUAA00 6 SPRING,EARTH HEAD AMP 85OP700036 HOLDER, EOT SENSOR 771WPAA04 3 PLATE,JACK 761WPA0208 HOLDER,FBT 752WSAA03 5 PLATE,SHIELD BOTTOM 761WPAA04 7 HOLDER,DECK COATING CLIP 8995034000 CORD CLIP UL CO. 701WPJB16 6 CABINET,FRONT 735WPA0288 BUTTON,POWER 712WPJA85 3 FLAT,FLAP...
  • Page 63: Chassis Replacement Parts List

    CHASSIS REPLACEMENT PARTS LIST REF. NO. PART NO. DESCRIPTION REF. NO. PART NO. DESCRIPTION A547B8B420A DECK ASS'Y A547B8B420A 8107126A04 SCREW,TAP TITE(S) PAN 2.6x10 8107226804 SCREW,TAP TITE(S) BIND 2.6x8 85OA500022 AHC ASS'Y 8107226604 SCREW,TAP TITE(S) BIND 2.6x6 85OP200290 BELT,CAPSTAN (S) 8109126604 SCREW,TAP TITE(B) PAN 2.6x6 85OP900710 LEVER,REC...
  • Page 64: Electrical Replacement Parts List

    ELECTRICAL REPLACEMENT PARTS LIST REF. NO. PART NO. DESCRIPTION REF. NO. PART NO. DESCRIPTION RESISTORS DIODES ! R447 R65582680J R, FUSE OHM 1/2W D521 D2BT0EG01Z DIODE, SILICON EG01Z-V0 ! R449 R5X2CE682J R, CEMENT 6.8K OHM 7W D522 D97U01601B DIODE, ZENER MTZJ16B T-77 ! R450 R6558A100J R, FUSE...
  • Page 65 ELECTRICAL REPLACEMENT PARTS LIST REF. NO. PART NO. DESCRIPTION REF. NO. PART NO. DESCRIPTION I C S TRANSISTORS ! IC506 0002500560 PHOTO COUPLER TLP621(D4-GR-LF2) Q4007 T8YJ2412K0 TRANSISTOR, SILICON 2SC2412KT146(R,S) IC601 I03DE68120 IC LA76812 Q4010 T8YJ2412K0 TRANSISTOR, SILICON 2SC2412KT146(R,S) IC851 ICKD001060 IC ET106 Q4201 TNAAB05003 COMPOUND TRANSISTOR...
  • Page 66 ELECTRICAL REPLACEMENT PARTS LIST REF. NO. PART NO. DESCRIPTION REF. NO. PART NO. DESCRIPTION VARIABLE RESISTORS MISCELLANEOUS VR501 V1163Q3BTC VOLUME, SEMI FIXED EVNCYAA03BQ3 FH503 06710T0006 HOLDER, FUSE EYF-52BC VR502 V1163Q3BTC VOLUME, SEMI FIXED EVNCYAA03BQ3 FH504 06710T0006 HOLDER, FUSE EYF-52BC P.C.BOARD ASSEMBLIES ! ICP502 083PC10002 MICRO FUSE 251010...
  • Page 67 M547-B8B SPEC.NO. W125506 O/R NO.
  • Page 68: Preparation For Servicing

    SERVICING FIXTURES AND TOOLS Part No. Remarks JG154 Cable JG162A Cable (8 Pins) JG162F Cable (11 Pins) Used to connect the test point APJG154000 JG162Y Cable (5 Pins) of SERVICE and GROUND APJG162A00/ Used to connect the Syscon APJG162F00 PCB and Main PCB Used to connect the Syscon APJG162Y00 PCB and CRT PCB...

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