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P/NO : 3828VD0118U
All manuals and user guides at all-guides.com
Feb.,2003
Printed in Korea
COLOR TV
SERVICE MANUAL
CHASSIS : MC-022A
MODEL:RT-25/29FB30R/V/VX
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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Table of Contents
Related Manuals for LG RT-25FB30R
Summary of Contents for LG RT-25FB30R
- 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-022A MODEL:RT-25/29FB30R/V/VX CAUTION BEFORE SERVICING THE CHASSIS, READ THE SAFETY PRECAUTIONS IN THIS MANUAL. Feb.,2003 P/NO : 3828VD0118U Printed in Korea...
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Page 2: Table Of Contents
All manuals and user guides at all-guides.com CONTENTS Contents ......................... 2 Safety Precautions ....................3 Specifications ..................... 4 Control Descriptions ..................5 Disassembly Instructions ................8 Adjustment Instructions ................9 Block Diagram ....................16 T rouble Shooting ....................18 Exploded View ....................22 Exploded View Parts List ................23 Replacement Parts List ................ -
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: Specifications
All manuals and user guides at all-guides.com SPECIFICA TIONS Note : Specification and others are subject to change without notice for improvement. Video input system: PAL-B/G, D/K, I/I SOUND IF : 33.4MHz (B/G) SECAM-B/G, D/K/L/L’ 32.9MHz (I/I) NTSC M 32.4MHz (D/K,L) NTSC 4.43(AV) 34.4MHz (M) NTSC- M/PAL M-N... -
Page 5: Control Descriptions
I/II LIST adjusts menu settings. SLEEP EYE/ 6. VCR BUTTONS (option) TEXT Q.VIEW control a LG video cassette recorder. 7. SSM (Sound Status Memory) TIME recalls your preferred sound setting. REVEAL MODE SIZE STILL POSITION 9/4 PIP 8. - Page 6 All manuals and user guides at all-guides.com 14. OK accepts your selection or displays the current mode. 15. LIST POWER MUTE displays the programme table. 16. EYE/ (option) switches the eye function on or off. 17. SLEEP sets the sleep timer. TV/AV 18.
- Page 7 All manuals and user guides at all-guides.com Front panel CF/CT-25/29Q20 series RF/RT-29FA33 series ON/OFF MENU OK MENU ON/OFF 23 4 5 RF/RT-28FZ10 series CF/CT-25/29H30 series MENU ON/OFF MENU VIDEO (L/MONO) AUDIO (R) ON/OFF S-VIDEO VIDEO 2 6 34 5 (L/MONO) AUDIO CF/CT-34M20 series RF/RT-29FB30 series...
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Page 8: Disassembly Instructions
All manuals and user guides at all-guides.com DISASSEMBLY INSTRUCTIONS Important note Chassis Assy Removal This set is disconnected from the power supply through the Grasp both side of Frame and pull it backward smoothly. converter transformer. An isolating transformer is necessary for service operations on the primary side of the converter transformer. -
Page 9: Adjustment Instructions
All manuals and user guides at all-guides.com ADJUSTMENT INSTRUCTIONS 1. Safety Precautions 5. Screen Voltage & White Balance Adjustment 1. It is safe to adjust after using insulating transformer between 5-1. Adjustment of screen manually the power supply line and chassis input to prevent the risk of (Using ADJ.Remote Control) electric shock and protect the instrument. - Page 10 Adjust so that middle portion of the outermost left and right vertical line looks like parallel with vertical lines of the CPT. NOTE : If production line doesn’t the production line of LG TV,receive available deflection adjustment pattern. EC (East-west Coner) Adjust so that the vertical line at every 4 corners of the screen 6-2.
- Page 11 All manuals and user guides at all-guides.com 25/29” LG FLAT CPT(CT-25Q20RB) 29” S/S SEB FLAT CPT ITEM ITEM RANGE N50Hz W50Hz Z50Hz RANGE N50Hz Z50Hz W50Hz 0050~00CF 009A 0050~00CF 00A3 0025~00BF 00F3 0025~00BF 00F5 0000~009F 00D0 0000~009F 00D0 0600~0900 0774...
- Page 12 00FD 00FD 00F8 00FD 00F9 7. SVC Data & PSM,SSM Data. PICTURE SETTING DATA (LINE SVC-3) 28” FLAT Menu Range 25/29” LG Flat 29” S/S-Flat 25” FST 28” FST 29” FST DVCO(Digital VCO) IBRM(BLACK CURRENT) 0~1FFH 00C8 00C8 00C8 00C8...
- Page 13 All manuals and user guides at all-guides.com 8-3. OPTION 1 Function 8-5. OPTION 3 Function Option Code Function Remark Option Code Function Remark 4:3 NORMAL MODEL TXT Model W/O GAME WIDE GAME WIDE FLAT MODEL W/O TXT Model GAME PACK GAME(HINDI MICOM) W/O TOP(FLOP BASIC) FORCED MONO NOT SETTING MONO...
- Page 14 All manuals and user guides at all-guides.com 8-7. OPTION 4 Function OPTION CODE FUNTION Arab.Asia English Only(Eng.) 3834 Arab(Eng/Fr/Arab) Urdu(Eng/Fr/Arab/Urdu) Asia(Eng/Fr/Indonesia) Farsi English Only(Eng.) 3834 Arab(Eng/Fr/Arab) Farsi(Eng/Fr/Arab/Farsi) Arab-Asia English Only(Eng.) 3804 Arab(Eng/Fr/Arab) LANG. Urdu(Eng/Fr/Arab/Urdu) Arab all(Eng/Fr/Arab/Urdu/Farsi) Farsi ONly(Eng/Farsi) Asia(Eng/Fr/Indonesia/Malay) WEST-EU English Only(Eng.) 3834 Only(W/TXT) EU-7(E.Ger/Fr/Ita/Spain/Holand/Port)
- Page 15 All manuals and user guides at all-guides.com OPTION CODE FUNTION Farsi only WEST-EU 3834 only(W/TXT) EAST-EU Turkey Cyrillic3 Arab/English Farsi/English TXT-L Arab-Asia WEST-EU 3834 only(W/TXT) EAST-EU Turkey Cyrillic3 Arab/English WEST EU WEST-EU 3834 only(W/TXT) EAST-EU Turkey Cyrillic3 EAST EU WEST-EU 3834 only(W/TXT) EAST-EU Turkey...
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Page 16: Block Diagram
All manuals and user guides at all-guides.com BLOCK DIAGRAM - 16 -... - Page 17 All manuals and user guides at all-guides.com - 17 -...
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Page 18: Trouble Shooting
All manuals and user guides at all-guides.com TROUBLE SHOOTING RF- STEREO Selected correct system In menu Check the waveform Check / Replace At pin 17 of TU101 TU 101 Check the waveform Check The Voltage Check The voltage At pin 24,25 of IC661 At pin 16,33,46, of IC661 At pin of IC610, IC853 Check the waveform... - Page 19 All manuals and user guides at all-guides.com NO RASTER CHECK B+ At D807 cathode Normal Abnormal Open Is the voltage at Check Pin 25, 54 of IC01 3.3V? Fuse of AC line Check / Replace Fuse , DB801 Check the In/out of Check pin 24 Check the Voltage...
- Page 20 All manuals and user guides at all-guides.com No Picture / No Sound Is any OSD displayed? Check receiving system in MENU Check IC01 pin37,42,43,44 & execute Auto - Program. (IK, R,G,B) Does the auto - Program Operate properly. Check / Replace IC01 Store on manual - program MENU Check...
- Page 21 All manuals and user guides at all-guides.com AV Stereo Select correct system In menu Check the connection Of AV equipment Check the the waveform At pin47 of IC661 Check TU101 Tuner Check the voltage Check the waveform Of pin16,20 At pin 24, 25, of IC661 Check waveform Check / Replace At pin 4, 12 of IC602...
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Page 22: Exploded View
All manuals and user guides at all-guides.com EXPLODED VIEW P801 - 22 -... -
Page 23: Exploded View Parts List
All manuals and user guides at all-guides.com The components identified by mark critical for safety. EXPLODED VIEW PARTS LIST Replace only with part number specified. Part No. Description 25" 29" 343-B52A 4980V00432A SUPPORTER,PCB 6341V25004A 6341V29009A CPT ASSY 6341V29009B CPT ASSY A68QCU759X LGPD DY S-FOCUS 6335V29014A CPT ASSY A68QCU759X 66L7ND 6400GESS01A... -
Page 24: Replacement Parts List
All manuals and user guides at all-guides.com REPLACEMENT PARTS LIST LOCA. NO PART NO DESCRIPTION LOCA. NO PART NO DESCRIPTION D866 0DD410000AD DIODE,RECTIFIERS RU4AM,LF-L1 D867 0DD414809ED DIODE,1N4148 TA HIC920 0IZZVF0018A IC,STK396-110 11P ST SCAN VELOCIT D901 0DR210009AC DIODE,RECTIFIERS BAV21 DO35 200V 0.2 IC01 0ICTMMN005B IC,VCT3834B LG23 E/EU... - 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 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 27 510 OHM 1/6 W 5.00% TA52 P903 366-009D CONNECTOR (CIRC),2.36PAI 1P R102 0RD5100F609 P920 366-932B CONNECTOR (CIRC),2.5MM 3P GIL-G LG R119 0RD0102F609 10 OHM 1/6 W 5.00% TA52 R126 0RD1001F609 1K OHM 1/6 W 5.00% TA52 RESISTOR 1K OHM 1/6 W 5.00% TA52...
- Page 28 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 29 0RD1000F609 100 OHM 1/6 W 5.00% TA52 R663 0RD1000F609 100 OHM 1/6 W 5.00% TA52 SW01 140-315A SWITCH,TACT SKHV17910B LG C&D NON 12V 10K OHM 1/6 W 5.00% TA52 SW02 SWITCH,TACT SKHV17910B LG C&D NON 12V R664 0RD1002F609 140-315A R801 0RKZVTA001K 0.47M OHM 1/2 W 5% TA52 PILKOR...
- Page 30 LOCA. NO PART NO DESCRIPTION LOCA. NO PART NO DESCRIPTION SK901 6620VBC003A SOCKET (CIRC),CPT PCS030A 8PIN 14/360 163-058D THERMISTOR,03-07MX 7 OHM 20% 80/60 TH801 TU101 6700MF0001E TUNER,TAFD-Z242D LG MULTI FS 4SYS,DI VD801 164-003K VARISTOR,SVC621D-14A 620V 0% UL/C - 30 -...
- Page 31 All manuals and user guides at all-guides.com PRINTED CIRCUIT BOARD COMPONENT LOCATION GUIDE P/N: 3854VA0098A-S(2/2) DATE: 2002.03.25 C01 ..B4 C402 ..G4 C806..F2 F854..E3 G70 ..E2 J160 ..C4 J251 ..D5 J345 ..A3 Q110 ..B5 R140 ..A5 R526 ..C4 R908 ..A1 C02 ..B4 C403 ..G3 C807..F3 F855..D2...
- Page 32 All manuals and user guides at all-guides.com P/NO:3854VA0098A-S(1/2) 2002.03.25...
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Page 33: Svc. Sheet
All manuals and user guides at all-guides.com SVC. SHEET : 3854V A0098A-S SVC. SHEET :...