Instruction/ maintenance manual of the product RT-29FB50VB/VE LG Electronics
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COLOR TV SER VICE MANUAL CAUTION BEFORE SERVICING THE CHASSIS, READ THE SAFETY PRECAUTIONS IN THIS MANUAL. CHASSIS : MC-022A MODEL:RT -29FB50RB/RE/RP/RX MODEL: RT -29FB50VB/VE website:http://biz.LGservice.com e-mail:http://www.LGEservice.com/techsup.html Feb.
- 2 - CONTENTS Contents ................................................................................................................. 2 Saf ety Pr ecautions ..........................................................................................
- 3 - SAFETY PRECAUTIONS Many electrical and mechanical parts in this chassis have special safety-related characteristics. These parts are identified by i n the Schematic Diagram and Replacement Parts List.
- 4 - SPECIFICA TIONS Note : Specification and others are subject to change without notice for improvement. O Video input system: PAL-B/G, D/K, I/I SECAM-B/G, D/K/L/L’ NTSC M NTSC 4.43(AV) NTSC- M/PAL M-N O Intermediate Frequency (Unit : MHz) VISION IF : 38.
- 5 - 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.
- 6 - 14. OK accepts your selection or displays the current mode. 15. LIST displays the programme table. 16. EYE/ * (option) switches the eye function on or off. 17. SLEEP sets the sleep timer . 18. Q.VIEW returns to the previously viewed programme. selects a favorite programme.
- 7 - 1. MAIN POWER switches the set on or off. 2. POWER/ST ANDBY INDICA TOR illuminates brightly when the set is in standby mode. dims when the set is switched on. 3. MENU selects a menu. 4. OK accepts your selection or displays the current mode. 5. D D / E E (Programme Up/Down) selects a programme or a menu item.
- 8 - Fig. 2-1 Fig. 2-2 CPT PCB Remove Screws MAIN PCB DISASSEMBL Y INSTRUCTIONS Important note 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.
- 9 - 1. Safety Precautions 1. It is safe to adjust after using insulating transformer between the power supply line and chassis input to prevent the risk of electric shock and protect the instrument. 2. Never disconnect leads while the TV receiver is on.
- 10 - 6. Deflection Data Adjustment (Line SVC-2) NOTE : How to enter into the Line Service Mode with a remocon. 1.Power off. 2.Press the Red button. 3.Press the Green button. 4.Press the Yellow button. 5.Press the Cyan button. 6.Press the OK button. 7.
- 11 - ITEM RANGE Z60Hz W60Hz N60Hz Z50Hz W50Hz 25” 29” 25” 29” 29” 29” 29” 29” 25” 25” 25” 25” N50Hz VA VL SC VS HS EW ET EP ES EC PIP P 008A 00F8 00E1 0733 001C 0C59 07F3 07B.
- 12 - 7. SVC Data & PSM,SSM Data. PICTURE SETTING DATA (LINE SVC-3) Menu DVCO(Digital VCO) IBRM(BLACK CURRENT) WDRM(WHITE CURRENT) BCLT(BCL THERSHOLD BCLTM(BCL TIME) BCLGA(BCL GAIN) SVGA(SVM GAIN.
- 13 - 8-3. OPTION 1 Function 8-4. OPTION 2 Function Only Austrailia EYE DEG TILT KEY CH+AU ACMS TOP WIDE Option Code 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 Function Remark 4:3 NORMAL MODEL WIDE FLAT MODEL W.
- 14 - CODE 0 1 2 3 0 1 2 0 1 2 3 4 5 0 1 2 0 1 2 3 0 1 2 3 4 5 0 1 0 1 2 3 0 1 2 3 0 FUNTION English Only(Eng.) Arab(Eng/Fr/Arab) Urdu(Eng/Fr/Arab/Urdu) Asia(Eng/Fr/Indonesia) English Only(Eng.) Arab(Eng/Fr/Arab) Farsi(Eng/Fr/Arab/Farsi) English Only(Eng.
- 15 - CODE 0 1 2 3 5 8 0 1 2 3 5 0 1 2 6 0 1 2 6 0 1 2 4 5 6 FUNTION WEST-EU EAST-EU Turkey Cyrillic3 Arab/English Farsi/English WEST-EU EAST-EU Turkey Cyrillic3 Arab/English WEST-EU EAST-EU Turkey C.
BLOCK DIAGRAM - 16 - MAIN SPEAKER MAIN SPEAKER L R L R TUNER -1 MAIN TUNER - 2 FOR PIP (W/O PIP Option) A V - 1 A V - 2 A V - 3 Y&C A V -1 A V -2 SIF AF(SECAM L) CXA CXA - - 2040 2040 A V A V SWIT.
- 17 - 1 1 1 10 V(Flat) 120V (Normal) 12 V 12 33 V 14 16 18 17 V Sound Vcc (35V OPT .) 8 V 278 R05 LD3.3V KA78A09 78 L05 TDA -7297 Sound AMP H - DRIVE FBT PRE -AMP EEPROM LED TDA6109 MSP -34XX (Sound Processor) 7805 T uner (Main) VCT3834 LD3.3V TDA - 2006 (Mono Opt.
TROUBLE SHOO TING - 18 - RF - STEREO Selected correct system In menu Check the waveform At pin 17 of TU101 Check the waveform At pin 24,25 of IC661 Check the waveform At pin 4,12 of IC602 Check the V .
- 19 - NO RASTER CHECK B+ At D807 cathode Is the voltage at Pin 25, 54 of IC01 3.3V? Check Fuse of AC line Check / Replace Fuse , DB801 Check the V oltage Of C804 Check the V oltage Pin 3 of IC801 Che.
- 20 - No Picture / No Sound Is any OSD displayed? Check receiving system in MENU & execute Auto - Program. Does the auto - Program Operate properly . Store on manual - program MENU Check 5V , 33V & IIC Bus Line Of T uner . Is the CVBS signal OK.
- 21 - A V Stereo Select correct system In menu Check the connection Of A V equipment Check the the waveform At pin47 of IC661 Check TU101 T uner Check the waveform At pin 24, 25, of IC661 Check wavef.
- 22 - EXPLODED VIEW 913 170 150 112 510 943 400 174 520 330 320 120 300 121 310 104 530 700.
- 23 - EXPLODED VIEW P AR TS LIST LOCA. NO PART NO DESCRIPTIONS 104 343-B52A SUPPORTER,PCB 112 6341V29009A CPT ASSEMBLY,A68QCU759X ,5006C DY S-FOCUS 6334V29003A CPT 6334V29003B CPT 120 120-C77G SPEAKE.
- 24 - REPLA CEMENT P AR TS LIST LOCA. NO P ART NO DESCRIPTION “ D803 “ D804 “ D815 “ D857 “ D858 “ D860 D861 “ D862 D863 “ D864 “ D865 D866 “ D867 “ D901 D902 D903 D904 D920 “.
- 25 - LOCA. NO P ART NO DESCRIPTION Q183 Q184 Q185 Q186 Q187 Q201 Q202 Q301 Q302 Q303 Q401 Q402 Q505 Q506 Q507 Q508 Q509 Q621 Q671 Q672 Q806 Q807 Q853 Q855 Q856 Q856 Q901 QP01 QP02 QP03 QP04 QP05 C01.
- 26 - LOCA. NO P ART NO DESCRIPTION C31 1 C401 C401 C402 C403 C405 C406 C407 C408 C409 C410 C41 1 “ C413 C415 C416 C419 C420 C422 C501 C502 C503 C504 C505 C506 C508 C509 C510 “ C51 1 C512 C513 C5.
- 27 - LOCA. NO P ART NO DESCRIPTION C860 C861 C862 C862 C864 C865 C867 C868 C871 C872 C873 C874 C874 C880 C901 C902 C903 C904 C920 C921 C922 C923 C924 C925 C926 C927 C928 C929 C930 CP08 CP09 CP10 CP1.
- 28 - LOCA. NO P ART NO DESCRIPTION P802B P901 P903 P920 PP501 F851 F853 F854 F855 FR402 FR403 FR406 FR406 FR413 FR901 J128 J130 J137 J148 J149 J151 J163 J167 J170 J175 J192 J207 J210 J215 J216 J317 .
R313 R315 R316 R317 R319 R320 R321 R322 R323 R324 R325 R326 R327 R328 R330 R331 R402 R403 R404 R405 R408 R409 R410 R41 1 R413 R414 R415 R416 R417 R419 R42 R420 R43 R44 R45 R46 R47 R48 R49 R50 R509 R51.
- 30 - LOCA. NO P ART NO DESCRIPTION R833 R850 R852 R858 R862 R863 R864 R865 R866 R867 R868 R869 R871 R871 R872 R873 R873 R90 R901 R902 R903 R904 R905 R906 R907 R908 R909 R91 R910 R91 1 R912 R913 R921.
P/NO:3854VA0098A-S(1/2) 2002.03.25.
COMPONENT LOCA TION GUIDE C01 ..........B4 C02 ..........B4 C03 ..........B4 C04 ..........B4 C06 ..........E1 C07 ..........B4 C08 ..........B4 C10 ..........B3 C11 ..........B3 C14 ..........B4 C16 ..........B4 C17 ..........B4 C22 ..........B4 C23 .
SV C. SHEET : 3854V A0098A-S SV C. SHEET :.
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