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TRT TCR2023 Service Manual

Color television receiver
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TCR2023
SERVICE MANUAL
COLOR TELEVISION RECEIVER
ORIGINAL
MFR'S VERSION A
Design and specifications are subject to change without notice.

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Summary of Contents for TRT TCR2023

  • Page 1 TCR2023 SERVICE MANUAL COLOR TELEVISION RECEIVER 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 IMPORTANT ..............................A1-1 CONTENTS ..............................A2-1 GENERAL SPECIFICATIONS ........................A3-1~A3-4 DISASSEMBLY INSTRUCTIONS ....................... SERVICE MODE LIST ..........................CONFIRMATION OF USING HOURS ......................NOTE FOR THE REPLACING OF MEMORY IC ..................ELECTRICAL ADJUSTMENTS ........................

  • Page 4: General Specifications

    GENERAL SPECIFICATIONS G-1.Outline of the Product 20 inch(480.0mmV):Measured diagonally Color CRT 90 degree deflection G-2.Broadcasting System System G-3.Color System NTSC SECAM or Monochrome signal G-4.NTSC Playback(PAL 60Hz) G-5.NTSC 3.58+4.43/PAL60Hz G-6.Antenna Input Impedance VHF/UHF 75 ohm unbalanced G-7.Tuner and Receiving Channel Tuner : Contactless Electric Tuner Oscar(W/O HYPER) Oscar(W/ HYPER)
  • Page 5 GENERAL SPECIFICATIONS G-17.Protector: Power Fuse G-18.Regulation Safety NEMKO FEMKO DEMKO IEC65 SEMKO HOMOLO SABS SISIR AS3159 DENTORI GOST NONE Radiation SABA HOMOLO CISPR13 DENTORI AS/NZS NONE X-Radiation DHHS DENTORI NONE G-19.Temperature Operation ºC ~ 40 ºC Storage ºC ~ 60 ºC G-20.Operating Humidity Less than G-21.Clock and Timer...
  • Page 6 GENERAL SPECIFICATIONS G-26.OSD Language OSD Language Setting Not Applicable G-27.Speaker : P o s itio n Front Side Bottom Size inches 8 ohm x Power W (Typical) G-28.EXT Speaker G-29.Carton Master Carton: Need No Need Content: ---- Material: ---- / ---- Corrugated Carton Dimensions: ---- mm(L)
  • Page 7 GENERAL SPECIFICATIONS G-32.Switch Front Power(Tact) Channel Up/Reset Volume Up/Set Up System Select Channel Down/Enter Volume Down/Set Down Main Power SW Sub Power Menu:Vol Up + Vol Down Rear AC/DC TV/CATV Selector Degauss Main Power SW G-33.Magnetic Field BV : +0.45G BV : +0.35G BV :...

  • Page 8: Disassembly Instructions

    DISASSEMBLY INSTRUCTIONS 1. 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 9: Service Mode List

    SERVICE MODE LIST This unit provided with the following SERVICE MODES so you can repair, examine and adjust easily. To enter the Service Mode, press both set key and remote control key for more than 1 second. Set Key Remocon Key Operations Releasing of V-CHIP PASSWORD.

  • Page 10: Electrical Adjustments

    ELECTRICAL ADJUSTMENTS BEFORE MAKING ELECTRICAL 2. BASIC ADJUSTMENTS ADJUSTMENTS 2-1: RF DELAY Read and perform these adjustments when repairing the Place the set with Aging Test for more than 15 minutes. circuits or replacing electrical parts or PCB assemblies. Receive an 80dB monoscope pattern. Connect the digital voltmeter between the TP001.
  • Page 11 ELECTRICAL ADJUSTMENTS 2-9: OSD HORIZONTAL Activate the adjustment mode display of Fig. 1-1. Press the VOL. UP/DOWN button on the remote control until the difference of A and B becomes minimum. (Refer to Fig. 2-3) "A" Fig. 2-1 00 OSD Fig.
  • Page 12 ELECTRICAL ADJUSTMENTS 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. minutes before performing the following adjustments.

  • Page 13: Major Components Location Guide

    MAJOR COMPONENTS LOCATION GUIDE VR501 T502 TP401 TP001 TU001 FB401 CP601 FOCUS VOLUME SCREEN VOLUME MAIN PCB J801 TP023 TP022 CRT PCB D3-1...

  • Page 14: Block Diagram

    BLOCK DIAGRAM TU001 CHROMA IC CH. UP J352 IC601 M61206CFP X602 HEADPHONE_JACK 3.579545MHz IC351 AN7511 VOL. UP X' TAL AUDIO OUT MICON IC SOUND AMP SP351 CH. DOWN RF AGC OUT IC101 OEC7045B CF601 SAW FILTER VIF IN (1) VOL. DOWN Q606 AUDIO MUTE VIF IN (2)

  • Page 15: Printed Circuit Boards Main/Crt

    PRINTED CIRCUIT BOARDS MAIN/CRT (INSERTED PARTS) SOLDER SIDE L501_1 CP501_1 CP502 C526_3 HEATER HEATER TH501 FH502 F501 FH501 C503_1 C123 B501 D502 R542 W068 R506 Q802_1 C801 180V 180V D503 C514_1 CP801_1 D506 Q803_1 Q502 C501 W026 D512 D508 Q801_1 T502_1 W074 TP024...
  • Page 16 PRINTED CIRCUIT BOARDS MAIN/CRT (CHIP MOUNTED PARTS) SOLDER SIDE R604 C113 R632 C139_1 C127 R620 R122 IC601 IC101 C701 R420 C138 R603 R602 C411 R639 R359 R353 R357 R512 R513 C513_2 R503 R502 R813 R131...
  • Page 17 MICON/TUNER SCHEMATIC DIAGRAM ACCESSORY BT001 (MAIN PCB) R03(AB)E_20_T UM-4 ANT001 T4-216BNK-BK TU001 ENV56D66G3 BT002 TM101 R03(AB)E_20_T UM-4 RC-DW060 TP001 JWF-50K-1 C003 L001_1 OS101 10uH FROM/TO CHROMA PIC-28143SY-2 TUNER+5V W801 R002 R002 R001 18K 1/2W 18K 1/2W 18K 1/2W I2C_OFF MICON IC IC101 OEC7045B C137...
  • Page 18 CHROMA SCHEMATIC DIAGRAM (MAIN PCB) FROM POWER UNREG+12V Q604 Q605 2SD734 2SD734 7.2 7.2 Q606 2SD734 11.3 CF604 R639 EFCT4R5MW5 Q603 2SD734 D606 FROM SOUND/AV C647 R615 R608 MTZJ6.8B CF603 VIDEO_IN EFCT4R5YS5A 1.8K R638 C661 0.01 Y R646 7.9 7.9 C638_1 R634 FROM/TO SOUND/AV...
  • Page 19 POWER SCHEMATIC DIAGRAM (MAIN PCB) 4A 250V CAUTION: FOR CONTINUED PROTECTION AGAINST FIRE HAZARD, REPLACE ONLY WITH THE SAME TYPE FUSE 4A 250V (F501) FUSE. D516 ATTENTION: POUR UNE PROTECTION CONTINUE LES RISQUES D’INCEIE 1SS133 TO SOUND/AV N’UTILISER QUE DES FUSIBLE DE MEME TYPE R517 4A 250V (F501).
  • Page 20 DEFLECTION/CRT SCHEMATIC DIAGRAM (MAIN PCB) CD802 CP802A CP802B 2E0A3001 FROM CHROMA 51048-1000 51048-1000 CLAMP CLAMP CLAMP G.OUT G.OUT G.OUT R.OUT R.OUT R.OUT B.OUT B.OUT B.OUT V-OUT IC IC401 LA78040 HEATER HEATER THERMAL PUMP PROTECTION 180V 180V 24.7 12.0 25.0 CP801_1 TS-80P-02-V1 CD801 8M82025A...
  • Page 21 SOUND/AV SCHEMATIC DIAGRAM (MAIN PCB) J703 HTJ-032-05AW TO CHROMA R703 AUDIO_IN A_IN 820 1/4W V_IN VIDEO_IN J702 HTJ-032-05AY CC002 TP-1S-05 W807 FROM MICON/TUNER AUDIO_MUTE CP352 CD351 CH12403B SPEAKER TID-X02P-B2 POWER SP_OUT SOUND_GND SP351 NS-300RW 8 OHM FROM POWER SOUND+B SOUND_GND R359 C354 R353...

  • Page 22: Micon/Tuner

    WAVEFORMS MICON/TUNER 11 1V 20µs/div 200mV 5ms/div 0.5V 20µs/div 12 1V 20µs/div 200mV 20µs/div 0.5V 20µs/div 3 200mV 20µs/div 20V 20µs/div 1V 20µs/div DEFLECTION/CRT 200mV 5ms/div 14 0.5V 5ms/div 9 200mV 20µs/div CHROMA 15 20V 20µs/div 0.5V 5ms/div 0.5V 2ms/div NOTE: The following waveforms were measured at the point of the corresponding balloon number in the schematic diagram.

  • Page 23: Sound/Av

    WAVEFORMS 16 2V 20µs/div 21 50V 20µs/div 26 500mV 20us/div 22 50V 20µs/div 200V 20µs/div SOUND/AV 0.5V 1ms/div 10V 5ms/div 10V 5ms/div 1V 1ms/div 50V 20µs/div 25 500mV 1ms/div NOTE: The following waveforms were measured at the point of the corresponding balloon number in the schematic diagram.

  • Page 24: Mechanical Exploded View

    MECHANICAL EXPLODED VIEW J801 PCB110 (CRT PCB) FB401 L502 TU001 V801 PCB010 (MAIN PCB) SP351...

  • Page 25: Mechanical Replacement Parts List

    MECHANICAL REPLACEMENT PARTS LIST REF. NO. PART.NO DESCRIPTION A3J114C720 CABINET,FRONT ASSY 701WPJB273 CABINET,FRONT 713WPAA048 GUIDE,REMOCON 735WPBA230 BUTTON,FRAME 735WPAA211 BUTTON,BASE 711WPCA031 BADGE,BRAND 722000A065 GUARANTEE SEAL LABEL 723000B512 POP,LABEL 702WPAA156 CABINET,BACK 722A35A005 SHEET,RATING 741WUA0019 SPRING,EARTH 8117540A64 SCREW,TAPPING(B0) TRUSS 4x16 8121F50B84 SCREW,TAPPING(BO) GW20 FLAT 5x28 8109I30A04 SCREW,TAP TITE(B) WH7 3x10...

  • Page 26: Electrical Replacement Parts List

    ELECTRICAL REPLACEMENT PARTS LIST REF. NO. PART NO. DESCRIPTION REF. NO. PART NO. DESCRIPTION RESISTORS DIODES ! R401 R4X5T4104F R,METAL 100K OHM 1/4W ! D513 D2WXB290S0 DIODE,SILICON SB290S ! R405 R4X5T4183F R,METAL 18K OHM 1/4W D514 D1VT001330 DIODE,SILICON 1SS133T-77 ! R406 R903N8222J 2.2 OHM 1/8W D516...
  • Page 27 ELECTRICAL REPLACEMENT PARTS LIST REF. NO. PART NO. DESCRIPTION MISCELLANEOUS CF604 1011T4R517 FILTER,CERAMIC EFCT4R5MW5 CP352 069W120019 CONNECTOR PCB SIDE TID-X02P-B2 CP401 069X450029 CONNECTOR PCB SIDE B05B-DVS ! CP501 0697320039 CORD UX CONNECTOR THL-P03P-B1 CP502 069W420029 CONNECTOR PCB SIDE TV-50P-02-A1 CP601 0694260139 CONNECTOR PCB SIDE 173979-6...
  • Page 28 M3J1-14C SPEC.NO. W143004 O/R NO.

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