LG CA-21M60E Service Manual
LG CA-21M60E Service Manual

LG CA-21M60E Service Manual

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website:http://biz.LGservice.com
e-mail:http://www.LGEservice.com/techsup.html
COLOR TV
SERVICE MANUAL
CHASSIS :
MC994A
MODEL : CA/CT-21M60E/X/EX
CAUTION
BEFOUE SERVICING THE CHASSIS,
READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
P/No:3828VD0068W
2000.10

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Summary of Contents for LG CA-21M60E

  • Page 1 website:http://biz.LGservice.com e-mail:http://www.LGEservice.com/techsup.html COLOR TV SERVICE MANUAL CHASSIS : MC994A MODEL : CA/CT-21M60E/X/EX CAUTION BEFOUE SERVICING THE CHASSIS, READ THE SAFETY PRECAUTIONS IN THIS MANUAL. P/No:3828VD0068W 2000.10...
  • Page 2: Table Of Contents

    CONTENTS Contents ......................... 2 Safety Precautions ....................3 Servicing Precautions ..................4 Specifications ..................... 6 Control Descriptions ..................8 Disassembly Instructions ................10 Adjustment ......................11 Exploded View ..................14,16,18 Exploded View Parts List..............15,17,19 Replacement Parts List ................20 SVC. Sheet ........................ - 2 -...
  • Page 3: Safety Precautions

    SAFETY PRECAUTIONS IMPORT ANT SAFETY NOTICE Many electrical and mechanical parts in this chassis have special safety-related characteristics. These parts are identified by the Schematic Diagram and Replacement Parts List. It is essential that these special safety parts should be replaced with the same components as recommended in this manual to prevent X-RADIATION, Shock, Fire, or other Hazards.
  • Page 4: Servicing Precautions

    SERVICING PRECAUTIONS CAUTION: Before servicing receivers covered by this service transistors and semicounductor "chip" components. The manual and its supplements and addenda, read and follow the following techniques should be used to help reduce the SAFETY PRECAUTIONS on page 3 of this publication. incidence of component damage caused by static by static NOTE: If unforeseen circumstances create conflict between the electricity.
  • Page 5 c. Qulckly move the soldering iron tip to the junction of the Fuse and Conventional Resistor component lead and the printed circuit foil, and hold it Removal/Replacement there only until the solder flows onto and around both the 1. Clip each fuse or resistor lead at top of the circuit board component lead and the foil.
  • Page 6: Specifications

    SPECIFICA TIONS Note:Specifications and others are subject to change without notice for improvement. Y Power requirement: [Micom 1] English,Russia,Rumanian,Poland,Chinese,Hindi AC 110-240V, 50/60Hz (Cold SMPS) [Micom 2] English,Indonesia,Malay,Vietnam,Thai Y Tuning system: Y External in/output: Earphone, SCART or Phone Jack : Option VS (Voltage Synthesizer), 100 program memory Audio-In ;...
  • Page 7 T able 1 : Receiving System (26 System) Receiving System Receiving Channel Function PAL-B PAL-G VHF Band PAL-I, I/I PAL/SECAM-B : 2-12 PAL/SECAM-D : 1-12 PAL-D SECAM-K1 : 2-9 NTSC-M (US) : 2-13 PAL-K NTSC-M (JAPAN) : 1-12 Reception of broadcast and play-back for Video Tape Recorder SECAM-B UHF Band...
  • Page 8: Control Descriptions

    Eye function on or off. START LENGTH SP/LP ON/OFF 8. VCR BUTTONS (option) PLAY control a LG/GoldStar video cassette recorder. P/STILL STOP 9. ARC (Aspect Ratio Control) changes the picture format. 10. PSM (Picture Status Memory) recalls your preferred picture setting.
  • Page 9: Front Panel

    Front panel Shown is a simplified representation of front panel. Here shown may be somewhat different from your set. MUTE POWER MENU OK VOL VIDEO AUDIO POWER DUAL/ 19 20 TV/AV 15. MAIN POWER (POWER / Q.VIEW MENU switches the set on or off. 16.
  • Page 10: Disassembly Instructions

    DISASSEMBLY INSTRUCTIONS Chassis Assy Removal Important note Grasp both side of Frame and pull it backward smoothly. This set is disconnected from the power supply through the converter transformer. An isolating transformer is necessary for service operations on the primary side of the converter transformer.
  • Page 11: Adjustment

    ADJUSTMENT Y Safety Precautions 1. It is safe to adjust after using insulating transformer TUNER 6700VPV002B(LG C&D) 6700VPV002A(LG C&D) between the power supply line and chassis input to prevent the risk of electric shock and protect the 3.0 ! 0.1V 2.5 ! 0.1V...
  • Page 12: Sub Brightness Adjustment

    Brightness 4.5!0.5FL with VOLF/G key to get the color value. 4) Adjust BG, GG from the initialized data to get the color value of Status Default 21" LG 20" LG 14" LG X=281!8, Y=288!8. 5) R,G,B initial data and average data...
  • Page 13 Table 1. OPTION 1 Function Option Code Function Remark Single SYSTEM(CA-) BG Only South East Asian DUAL BG+TAI DUAL SYSTEM W/O RF 3.58(CF-,CZ-) BG+I+DK W/RF 3.58(CT-,CD-) BG+I+DK+M W/O CCTV CCTV W/CCTV Phono Jack or Camera-in Jack SCART with RGB Input Scart Jack 6 Key(MENU, OK, VOL-, VOL+, PR-, PR+) 4 KEY...
  • Page 14: Exploded View

    EXPLODED VIEW(CT-21C49) P801 OPTION - 14 -...
  • Page 15: Exploded View Parts List

    The components identified by mark critical for safety. EXPLODED VIEW PARTS LIST Replace only with part number specified. LOCA. NO PART NO DESCRIPTIONS Local 2055-00673S CPT,A51KPD12XX 00N7KR 120-487A SPEAKER,C112P01-496K14 (16 OHM) 150-D02N COIL,DEGAUSSING,CU 21Ó 60T 12OHM 153-110F DY,DCAN1-21FSAA 3091V00185B CABINET ASSY 5020V00320A BUTTON,MAIN 6KEY 3580V00034A...
  • Page 16 EXPLODED VIEW(CT-21K49E) P801 OPTION - 16 -...
  • Page 17 The components identified by mark critical for safety. EXPLODED VIEW PARTS LIST Replace only with part number specified. LOCA. NO PART NO DESCRIPTIONS Local 2055-00673S CPT A51KPD12XX 00N7KR 120-487D SPEAKER,GENERAL C112P01K145G 16 OHM 150-D02N COIL,DEGAUSSING,CU 21Ó 60T 12OHM 153-110F DY,DCAN1-21FSAA 170-A01C LEAD SET,CPT EARTH 3091V00208A...
  • Page 18 EXPLODED VIEW(CT-21K90E) P801 OPTION - 18 -...
  • Page 19 The components identified by mark critical for safety. EXPLODED VIEW PARTS LIST Replace only with part number specified. LOCA. NO PART NO DESCRIPTIONS Local 2055-00673S CPT A51KPD12XX 00N7KR 120-C93J SPEAKER,GENERAL C091P06K145B 16 OHM 150-D02N COIL,DEGAUSSING,CU 21Ó 60T 12OHM 153-110F DY,DCAN1-21FSAA 170-A01C LEAD SET,CPT EARTH 3091V00203A...
  • Page 20 SVC. SHEET : 3854V A0057A-S...
  • Page 21: Replacement Parts List

    REPLACEMENT PARTS LIST For Capacitor & Resistors, the CC, CX, CK, CN : Ceramic RD : Carbon Film The components identified by mark charactors at 2nd and 3rd digit CQ : Polyestor RS : Metal Oxide Film in the P/No. means as follows; CE : Electrolytic RN : Metal Film critical for safety.
  • Page 22 For Capacitor & Resistors, the CC, CX, CK, CN : Ceramic RD : Carbon Film The components identified by mark charactors at 2nd and 3rd digit CQ : Polyestor RS : Metal Oxide Film critical for safety. in the P/No. means as follows; CE : Electrolytic RN : Metal Film Replace only with part number specified.
  • Page 23 The components identified by mark For Capacitor & Resistors, the CC, CX, CK, CN : Ceramic RD : Carbon Film charactors at 2nd and 3rd digit CQ : Polyestor RS : Metal Oxide Film critical for safety. in the P/No. means as follows; CE : Electrolytic RN : Metal Film Replace only with part number specified.
  • Page 24 For Capacitor & Resistors, the CC, CX, CK, CN : Ceramic RD : Carbon Film The components identified by mark charactors at 2nd and 3rd digit CQ : Polyestor RS : Metal Oxide Film critical for safety. in the P/No. means as follows; CE : Electrolytic RN : Metal Film Replace only with part number specified.
  • Page 25 For Capacitor & Resistors, the CC, CX, CK, CN : Ceramic RD : Carbon Film The components identified by mark charactors at 2nd and 3rd digit CQ : Polyestor RS : Metal Oxide Film critical for safety. in the P/No. means as follows; CE : Electrolytic RN : Metal Film Replace only with part number specified.
  • Page 26 X501 156-A01H CRYSTAL,STANDARD HC49U 4.433619MHZ Z101 6200VQS001J FILTER(CIRC),SAW OFWM7255 38.9MHZ Z103 166-F01D FILTER,DSS306-93Y5S271M MURATA 50V ACCESSORIES 3828VA0186L/R MANUAL,OWNERS MC994A SY LG EN 020F/017F 012E 6710V00017E REMOTE CONTROLLER,MONO(W/O EYE),24KEY 6710V00017F REMOTE CONTROLLER,MONO(W/EYE) MISCELLANEOUS CPT1 6620VBC001A SOCKET,CPT 29.1 PHI SINGLE(PCS629-03A) 0FT4001B53C F801 FUSE,TIME LAG 4000MA 250 V 5.2X20...

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