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COLOR TV
SERVICE MANUAL
CHASSIS : MC-049B
MODEL:21FX4RLQ/RG/RGE/RGT/RGX
MODEL:
21FX4RLQ/RG/RGE/RGT/RGX-TB
CAUTION
BEFORE SERVICING THE CHASSIS,
READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
website:http://biz.LGservice.com
e-mail:http://www.LGEservice.com/techsup.html
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Summary of Contents for LG 21FX4RLQ
- Page 1 All manuals and user guides at all-guides.com website:http://biz.LGservice.com e-mail:http://www.LGEservice.com/techsup.html COLOR TV SERVICE MANUAL CHASSIS : MC-049B MODEL:21FX4RLQ/RG/RGE/RGT/RGX MODEL: 21FX4RLQ/RG/RGE/RGT/RGX-TB CAUTION BEFORE SERVICING THE CHASSIS, READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
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Page 2: Table Of Contents
All manuals and user guides at all-guides.com CONTENTS Contents ........................2 Safety Precautions....................3 Control Descriptions..................4 Specifications......................7 Adjustment Instructions .................8 T rouble Shooting....................12 Printed circuit board..................16 Block Diagram ......................19 Exploded View....................20 Exploded View Parts List ................21 Replacement Parts List .................22 SVC. Sheet........................- 2 -... -
Page 3: Safety Precautions
All manuals and user guides at all-guides.com 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: Control Descriptions
All manuals and user guides at all-guides.com DESCRIPTION OF CONTROLS All the functions can be controlled with the remote control handset. Some functions can also be adjusted with the buttons on the front panel of the set. Remote control handset Before you use the remote control handset, please install the bat- teries. - Page 5 º / ) (option) MENU/INDEX TV/AV selects surround sound. 18. VCR BUTTONS control a LG video cassette recorder. 19. PIP BUTTONS (option) switches the sub picture on or off. PR +/- selects a programme for the sub picture. SWAP alternates between main and sub picture.
- Page 6 All manuals and user guides at all-guides.com Front panel 21FX4R series Side panel 1. MAIN POWER (ON/OFF) 6. AUDIO/VIDEO IN SOCKETS (AV2) (option) switches the set on or off. Connect the audio/video out sockets of exter- nal equipment to these sockets. 2.
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Page 7: Specifications
1) Temperature : 20 ± 5 ° C Test and Inspection Method (CST must be tested 40 ± 5°C . Humidity : 50%) 1) Capacity : Follow LG electronics TV testing Standard. 2) Relative Humidity : 65 ± 10% 2) Another Required Standard... -
Page 8: Adjustment Instructions
All manuals and user guides at all-guides.com ADJUSTMENT INSTRUCTIONS 1. Application Object 4. Purity & Convergence adjustment These instructions are applied to all of the color TV, MC-049B. As preparatory operations before CPT Assembling assembling CPT, wind cotton Tape for 2. - Page 9 All manuals and user guides at all-guides.com (4) Maintain as angle of (3) and rotate the tab to accord with 2. White balance IIC Parameter vertical line of Red and Blue color in the middle of screen. Program TWBeng_v049 Program TWBeng_v049 Speed Delay...
- Page 10 All manuals and user guides at all-guides.com (4) VS (Vertical Shift) adjustment: 8-4. OPTION2 Function Adjust so that the geometric vertical center line is in accord Option Code Function with vertical center line of CPT. (5) HS(Horizontal Shift) adjustment: Without A/V2 Adjust so that the geometric horizontal center line is in With AV2 accord with horizontal center line of CPT.
- Page 11 All manuals and user guides at all-guides.com 8-6. OPTION4 Function Option Code Function ENG ONLY OSD L EU-5EA EU ETC GREECE EU-ALL FARSI ARAB URDU E+HINDI E+I+M+V E+THAI E+CHINA WEST EU TXT L EAST EU1 TURKEY EU EAST EU2 CYRILLIC1 CYRILLIC2 CYRILLIC3 TURK GRE1...
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Page 12: Trouble Shooting
All manuals and user guides at all-guides.com TROUBLE SHOOTING RF- STEREO MODEL PICTURE O. K / NO SOUND Selec t ed c o rrec t syst em In m enu Chec k t he wavef o rm Chec k / Rep lac e IF 1 o f TU101 TU 101 Chec k t he wavef o rm... - Page 13 All manuals and user guides at all-guides.com No Ras ter ( 2/ 2) CHECK B+ At D829 c at ho d e No rm al Ab no rm al Op en Is t he vo lt ag e a t Chec k eac h p in vo lag e o f IC11 Fuse o f AC line...
- Page 14 All manuals and user guides at all-guides.com NO Pic t ure No So und Is Any OSD d isp la yed ? Chec k IC11 p in71, 7 2, 73 Chec k rec eiving syst em in MENU & exec ut e Aut o Pro g ram . ( R, G, B o ut ) Do es t he auto Pro g ra m Op erat e p ro p erly...
- Page 15 All manuals and user guides at all-guides.com AV STERRO / MONO MODEL Selec t c o rrec t syst em In m enu Chec k t he c o nnec t io n Of AV eq uip m ent Chec k t he wavef o rm At p in16, 17 o f IC11 Chec k TU1 01 Tuner Chec k t he vo lt ag e...
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Page 16: Printed Circuit Board
All manuals and user guides at all-guides.com PRINTED CIRCUIT BOARD MAIN - 16 -... - Page 17 All manuals and user guides at all-guides.com COMPONENT LOCATION GUIDE C10 ..C4 C403 ..G3 C541 ..C3 C823..E1 D827 ..D2 P803A..F1 R36 ..C2 R410..F4 R605..A4 R904..B1 C11 ..C4 C404..F3 C542..B5 C824 ..D1 D828 ..D2 P803B..F1 R37 ..D1 R412 ..D4 R606..A4 R905..B1 C12 ..C4 C405 ..G3 C543 ..C5...
- Page 18 All manuals and user guides at all-guides.com SIDE A/V - 18 -...
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Page 19: Block Diagram
All manuals and user guides at all-guides.com BLOCK DIAGRAM VIDEO/AUDIO RESET DATA/CLOCK ON / OFF Y/Cb/Cr-IN SCART RGB-IN AV-IN TV / MONITOR OUT PIP-VIDEO PIP-RGB - 19 -... -
Page 20: Exploded View
All manuals and user guides at all-guides.com EXPLODED VIEW - 20 -... -
Page 21: Exploded View Parts List
DESCRIPTIONS 6341V21012A BARE CPT ASSEMBLY, LG 21 AK CPT 6334V21009A(6150V-1014J) 6341V21012B BARE CPT ASSEMBLY, LG 21 AK V2 CPT 6334V21009B(6150V-1014N) 6341V21013B BARE CPT ASSEMBLY, LG LGPHILLPS A51QDJ420X AK MASK EXPORT 6335V21019C CPT ASSEMBLY, A51QDJ420X 01UDDR U(-0.30G) 0G AK MASK ITC... -
Page 22: Replacement Parts List
All manuals and user guides at all-guides.com REPLACEMENT PARTS LIST For Capacitor & Resistors, the CC, CX, CK, CN : Ceramic RD : Carbon Film charactors at 2nd and 3rd digit CQ : Polyestor RS : Metal Oxide Film in the P/No. means as follows; CE : Electrolytic RN : Metal Film RF : Fusible... - Page 23 All manuals and user guides at all-guides.com For Capacitor & Resistors, CC, CX, CK, CN : Ceramic RD : Carbon Film the charactors at 2nd and 3rd CQ : Polyestor RS : Metal Oxide Film digit in the P/No. means as CE : Electrolytic RN : Metal Film follows;...
- Page 24 All manuals and user guides at all-guides.com For Capacitor & Resistors, CC, CX, CK, CN : Ceramic RD : Carbon Film the charactors at 2nd and 3rd CQ : Polyestor RS : Metal Oxide Film digit in the P/No. means as CE : Electrolytic RN : Metal Film follows;...
- Page 25 All manuals and user guides at all-guides.com For Capacitor & Resistors, CC, CX, CK, CN : Ceramic RD : Carbon Film the charactors at 2nd and 3rd CQ : Polyestor RS : Metal Oxide Film digit in the P/No. means as CE : Electrolytic RN : Metal Film follows;...
- Page 26 R605 0RD1101F609 1.1K OHM 1/6 W 5.00% TA52 R606 0RD3301F609 3.3K OHM 1/6 W 5.00% TA52 SW11 140-315A TACT SKHV17910B LG C&D 12V 10K OHM 1/6 W 5% TA52 R607 0RD1002F609 SW12 140-315A TACT SKHV17910B LG C&D 12V R608 0RD1001F609...
- Page 27 All manuals and user guides at all-guides.com P/NO: 3854VA0162A - S1 2004.6.12...
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Page 28: Svc. Sheet
All manuals and user guides at all-guides.com SVC. SHEET : 3854V A0162A-S... - Page 29 All manuals and user guides at all-guides.com May, 2005 P/NO : 3828VD0202T Printed in Korea...