LG RT-21FD35M Service Manual
LG RT-21FD35M Service Manual

LG RT-21FD35M Service Manual

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COLOR TV
SERVICE MANUAL
CHASSIS : MC-049B
MODEL:RT-21FD35M/V/VX
CAUTION
BEFORE SERVICING THE CHASSIS,
READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
MENU
OK
VOL
PR
website:http://biz.LGservice.com
e-mail:http://www.LGEservice.com/techsup.html

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Summary of Contents for LG RT-21FD35M

  • Page 1 COLOR TV SERVICE MANUAL CHASSIS : MC-049B MODEL:RT-21FD35M/V/VX CAUTION BEFORE SERVICING THE CHASSIS, READ THE SAFETY PRECAUTIONS IN THIS MANUAL. MENU...
  • Page 2: Table Of Contents

    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

    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

    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. POWER MUTE Remote control handset Before you use the remote control handset, please install the bat- teries.
  • Page 5 º / ) (option) MENU/INDEX selects surround sound. TV/AV 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 Front panel RF/RT-17/21FB75 series 1. MAIN POWER (ON/OFF) switches the set on or off. 2. POWER/STANDBY INDICATOR illuminates brightly when the set is in standby mode. dims when the set is switched on. blinks when signal is input from the remote RF/RT-21FD35 series control.
  • 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

    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. Notes protecting to CPT NECK and DY, CPT connection parts.
  • Page 9 (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 (5) Open angle of the two tab of 6 pole magnet by isogonic Vcd Slave BCF0 Eprom_Slave...
  • Page 10 (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 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 TURK GRE2 TURK GRE3 ARAB FRA ARAB ENG ARAB HEB1...
  • Page 12: Trouble Shooting

    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 Chec k The Vo lt ag e...
  • Page 13 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 Chec k / Rep lac e Chec k t he...
  • Page 14 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 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 Chec k t he wavef o rm...
  • Page 16: Printed Circuit Board

    PRINTED CIRCUIT BOARD MAIN - 16 -...
  • Page 17 COMPONENT LOCATION GUIDE C10 ..C4 C501..B4 C626 ..D5 D823..E1 J231 ..C1 J541 ..B3 J810 ..D2 R19 ..D1 R421..F3 R805 ..G2 C11 ..C4 C502..B4 C627..A2 D827 ..D2 J232 ..D1 J542 ..B3 J811 ..D2 R20 ..D1 R422 ..G3 R806 ..G3 C12 ..C4 C503 ..D4 C632 ..D4 D828 ..D2...
  • Page 18 SIDE A/V POWER S/W - 18 -...
  • Page 19: Block Diagram

    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

    EXPLODED VIEW - 20 -...
  • Page 21: Exploded View Parts List

    SPRING, KNOB 5020V00884B BUTTON, POWER RT-21FD35V ABS 1KEY 117A 3809V00428G BACK COVER ASSEMBLY, RT-21FD35V DVD(1PHONE) 8G068 VN->SET 3809V00428H BACK COVER ASSEMBLY, RT-21FD35M 1PHONE 049B(8G068) VN->SET 6871VMM910L PWB ASSEMBLY,MAIN MC049B RT-21FD35VX.LTSLVC8, VN-CASA-S 6871VMM910R PWB ASSEMBLY,MAIN MC049B RT-21FD35M.LLSLVU8, VN-MOS 6871VMMT79T PWB ASSEMBLY,MAIN MC049B RT-21FD35V.LTSLVV8 VN8 DVD 6871VMMT79U PWB ASSEMBLY,MAIN MC049B RT-21FD35VX.LTSLVS8 VN-S&E PH...
  • Page 22: Replacement Parts List

    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 LOCA.
  • Page 23 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 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 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 0RD2204A609 2.2M OHM 1/2 W(7.0) 5.00% TA52 R914 0RD0102F609 10 OHM 1/6 W 5% TA52 SWITCH SW1111 140-313B TACT 2LEAD 160G(TA) LG C&D SW1111 6600VM2002A SDKEA3 ALPS IEC 250V 8A HORIZONTAL 480G SW1112 140-313B TACT 2LEAD 160G(TA) LG C&D SW1113 140-313B TACT 2LEAD 160G(TA) LG C&D...
  • Page 27 P/NO: 3854VA0162A - S1 2004.6.12...
  • Page 28: Svc. Sheet

    SVC. SHEET : 3854V A0162A-S...
  • Page 29 Sep.,2004 P/NO : 3828VD0196V Printed in Korea...

This manual is also suitable for:

Rt-21fd35vRt-21fd35vx

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