LG CT-29M65VE, Service Manual

Page 1: ... TV SERVICE MANUAL CAUTION BEFORE SERVICING THE CHASSIS READ THE SAFETY PRECAUTIONS IN THIS MANUAL CHASSIS MC 049A MODEL CT 29M65VE website http biz LGservice com e mail http www LGEservice com techsup html ...

Page 2: ...ety Precautions 3 Control Descriptions 4 Specifications 6 Adjustment Instructions 7 T rouble Shooting 11 Printed circuit board 15 Block Diagram 17 Exploded View 20 Exploded View Parts List 21 Replacement Parts List 22 SVC Sheet ...

Page 3: ...perform an AC leakage current check on the exposed metallic parts of the cabinet such as antennas terminals etc to be sure the set is safe to operate without damage of electrical shock Leakage Current Cold Check Antenna Cold Check With the instrument AC plug removed from AC source connect an electrical jumper across the two AC plug prongs Place the AC switch in the on position connect one lead of ...

Page 4: ...tte recorder 7 SSM Sound Status Memory recalls your preferred sound setting 8 I II option selects the language during dual language broadcast option selects the sound output 9 PSM Picture Status Memory recalls your preferred picture setting 10 TELETEXT BUTTONS option These buttons are used for teletext For further details see the Teletext section 11 MUTE switches the sound on or off 12 TV AV selec...

Page 5: ...icture on or off PR selects a programme for the sub picture SWAP alternates between main and sub picture INPUT selects the input mode for the sub picture SIZE adjusts the sub picture size STILL freezes motion of the sub picture POSITION relocates the sub picture in clockwise direction 9 4 PIP switches on or off the programme scan mode through 4 or 9 sub pictures COLOURED BUTTONS These buttons are ...

Page 6: ...ed upon P N of B O M 5 Warm up TV set for more than 20min before the measurement Standard input Voltage 110 240Vac 50 60Hz 230Vac 50 60Hz Market Middle East Africa EU Chassis MC049A Brand LG No 1 2 3 4 5 6 7 8 Item Receiving System Available Channel Input Voltage Market Screen Size Tuning System Operating Environment Storage Environment Remark For EU For Non EU OPTION Non EU EU 200 PR W O TXT Spec...

Page 7: ...by crossing adjustment At this time 4 6 pole magnet is located to magnet of nothing 5 Move the DY to make equal red on whole screen and it does not to make the DY by fixed screw after check a simple color of Red Green Blue and white raster whether or not it is a pollution of color At this time take care raster of screen and DY must fixing in the condition which maintains a horizontality 6 Check th...

Page 8: ...y SVC communicator 3 Enter the deflection mode by selection SERVICE1 key on SERVICE MENU after enter the adjustment mode by pressing LINE SVC MODE IN START KEY 4 Enter the deflection mode by pressing ADJUST key 5 Use the CH D E key to select adjustment item 6 Use the VOL F G key to increase decrease data Note 1 When adjusting a deflection adjust N50Hz of PAL signal first and adjust a deflection at...

Page 9: ... screen to the best straight line 13 PIP PIP Position Adjust until the distance between PIP and main picture becomes about 1 2mm by using VOL key 8 OPTION Adjustment 8 1 Preparation for Adjustment 1 This option adjustment decides function in accordance with model Press the SVC TX adjustment button IN START button at SVC mode then adjust the option at OPTION1 mode 2 Mark the option adjustment data ...

Page 10: ...unction Without TURBO SEARCH With TURBO SEARCH 100 PROGRAM SAVE 200 PROGRAM SAVE Without EYE With EYE 8KEY 4KEY SYSTEM ACMS TOP CH AU HDEV Option Code 0 1 0 1 0 1 0 1 0 1 Function REMARK Without ACMS Function With ACMS Function FLOT TXT TOP TXT Without D K CHINA or BB SYSTEM With D K CHINA or BB SYSTEM China Australia ...

Page 11: ... NO NO Check The Voltage At pin 2 19 20 21 24 of IIC11 Check Replace Q601 Check Replace F806 D828 D805 Check Replace C821 IC822 Q807 Check The voltage At pin of IC821 IC822 Q807 NO OK OK OK OK OK OK NO No Raster Sound OK Check the Heater voltage of CPT 6 6 5Vrms Check HV Screen Voltage of CPT Check R G B out of CPT Board Check the Heater pulse of FBT T402 Check 200V line of CPT Board if no problem...

Page 12: ...H Out Check Q402 Collector waveform Check T401 each pin voltage Check Q401 Collector waveform Check the In out of regulator Check Fuse and Rectifition Diode of secondary Load of SMPS trans T803 Check Replace IC11 Check Replace IC11 Check Replace Q402 Check Replace T401 Normal Abnormal Ok 140 310V Open No No No No No Yes Yes Yes Yes IC821 IC822 IC823 IC824 IC825 Ok 18 20V Ok Check Replace Fuse IC80...

Page 13: ...e CPT Board component Go to No Sound Picture OK Check IC11 pin71 72 73 R G B out No No OK OK OK OK Check pin40 V out 1 1V p p Check 1 8V 3 3V 5V DC Voltage No Check SMPS Trans Secondary Voltage Q501 Q503 Q504 R G B out of IC11 No No Check pin18 Reset Voltage OK Check IC13 Reset IC No Check pin57 58 SCL SDA OK Check IC12 EEPROM SCL SDA Line No Relace IC11 OK 3 3V swing 3 3V DC ...

Page 14: ...n 2 4 of IC601 Check the voltage At pin6 of IC601 Check the waveform At pin 8 9 11 12 of IC601 Check the voltage Of pin2 19 20 21 24 of IC11 Check the signal line of SPK L R Check pin 55 mute of IC11 Check the vpltage At pin7 5 of IC601 Check Replace D828 D805 F806 OK AV OK OK OK OK OK OK NO NO NO NO NO NO OK Check the connection of side or Front AV Board NO Connect the Board OK Replace IC601 P603...

Page 15: ... 15 PRINTED CIRCUIT BOARD MAIN ...

Page 16: ...SIDE A V 16 POWER CONTROL ...

Page 17: ...9489X PIP Processor LA7222 Aud io Swit c h EYE Op t Tilt Op t STK396 110 VM IC SMPS TRANS ST 5V 12V PIP AV SW OPT 3 3V 5V Tuner Sub Relay VM 200 V FBT LA 7845 V AMP 14V FBT EW AMP 28 V FBT T802 IC11 LA42152 So und AMP IC601 LA42152 So und AMP IC601 ICP01 IC602 IC901 HIC920 ST 1 8V ST 3 3V 3 3V 8V ST 1 8V ST 3 3V 5V 9V 14V 17V 5V 14V 14V IC824 IC853 IC825 IC821 IC822 ICP02 11 ...

Page 18: ... C3 R Pr Y3 G Y B Pb V1 V2 V3 C3 R Pr Y3 G Y B Pb AIN1 L R AIN2 L R AIN3 L R AUDIO VIDEO LA7222 HOR EW VER TDA4863 EHT VCTi 49xxl P N SVCC 110V 12V 5V 3 3V 1 8V BIN BIN PIP Va Vb RGB o ut SVM o ut Hf b Hout Menu OK VOL VOL PR PR KEY IR AUDIO VIDEO GAME MODULE HS VS IFIN IFIN MAIN SUB MAIN SUB 3 T PIP VIDEO RIN GIN PIP VIDEO RIN GIN AOU 1 1 2 VOUT ...

Page 19: ...MEMO 19 ...

Page 20: ... 20 EXPLODED VIEW 520 501 310 600 601 700 300 330 320 120 540 550 112 170 150 913 943 400 174 153 ...

Page 21: ...NOB 330 5020V00421C BUTTON POWER CT 29M65VE ABS HF 380 1KEY 117A SPRAY 400 3809V00205E BACK COVER ASSEMBLY CT 29M66T 2PHONE MC007A 501 3210V00043J FRAME CHASSIS HIPS 407AF CT 25Q4 MC 022A 520 6871VMMT20D PWB PCB ASSEMBLY MAIN MC049A CT 29M65VE LLLLSM8 540 6871VSMJ43A PWB PCB ASSEMBLY SUB POWER MC 049A M60 LGESY 550 6871VSMJ32C PWB PCB ASSEMBLY SUB CTL MC 049A M60 LGESY 600 6871VSMJ30C PWB PCB ASSE...

Page 22: ... 10000P 16V M Y TA52 10000P 16V M Y TA52 22P 50V J SL TA52 10000P 16V M Y TA52 LOCA NO PART NO DESCRIPTION I7 IC11 IC11 IC12 IC13 IC302 IC601 IC801 IC802 IC821 IC822 IC824 IC825 IC826 IC853 IC901 Q104 Q301 Q303 Q401 Q401 Q402 Q501 Q502 Q503 Q504 Q505 Q507 Q510 Q601 Q801 Q802 Q803 Q804 Q805 Q807 Q808 D301 D302 D403 D404 D405 D406 0IPMGPH002A 0IZZVA1001D 0IMCRMN026A 0IMMRSG036C 0IFA752700A 0IKE45580...

Page 23: ...21 C522 C524 C526 C527 C528 C529 C530 C532 C533 C534 C535 C536 C537 C538 C540 C541 C542 C543 C545 C547 C548 C602 C603 C604 C605 C606 C607 C608 C609 C610 C611 C612 C613 C614 C615 C616 C617 C618 C619 C620 C624 C625 C626 C627 C631 C632 0CN1040K949 0CE107DD618 0CN1040K949 0CN1010K519 0CE107DD618 0CN1040K949 0CN1040K949 0CE107DD618 0CN1040K949 0CN1040K949 0CN1040K949 0CN1040K949 0CN1010K519 0CN1040K949...

Page 24: ... 1 0UH K 2 3 3 4 TP LOCA NO PART NO DESCRIPTION L503 L504 L505 L506 L507 L508 L509 L801 T401 T803 P07B P08B PA01B F802 F804 F805 F806 FR402 FR403 FR404 FR405 FR901 J204 J208 J211 J220 J222 J261 J509 J510 J512 J566 R102 R105 R109 R11 R110 R111 R112 R113 R1143 R1146 R1147 R1148 R1149 R1150 R1201 R1230 0LA0101K119 0LA0101K119 0LA0101K119 0LA0101K119 0LA0101K119 0LA0101K119 0LA0152K119 150 C02F 151 C0...

Page 25: ...A NO PART NO DESCRIPTION R404 R405 R408 R409 R410 R411 R412 R413 R414 R415 R416 R417 R42 R421 R422 R449 R501 R502 R503 R504 R506 R507 R508 R509 R510 R511 R512 R513 R514 R515 R516 R517 R518 R519 R520 R521 R522 R527 R532 R539 R540 R541 R542 R543 R555 R557 R558 R601 R602 R603 R604 R605 0RD0332A609 0RS1500K690 0RS0221K619 0RD1801A609 0RMZVBK002D 0RS5102H609 0RD7501A609 0RS2202H609 0RS1001H609 0RD1002F...

Page 26: ... 00 TA52 220 OHM 1 6 W 5 00 TA52 100 OHM 1 6 W 5 TA52 100 OHM 1 6 W 5 TA52 100 OHM 1 6 W 5 TA52 LOCA NO PART NO DESCRIPTION R909 R910 R911 R912 R925 SW1101 SW1102 SW1103 SW1104 SW1105 SW1106 SWP801 SG901 SG902 SG903 SG904 FB1241 FB401 FB801 FB802 FB803 FB825 T801 X11 Z101 JK1201 JK1203 JK201 JK202 A1 A2 FP801 PA1101 SK901 T402 TH801 TU101 VD1111 0RCZVTA002D 0RCZVTA002D 0RCZVTA002D 0RD2204A609 0RD2...

Page 27: ...P NO 3854VA0146A S1 2004 4 16 ...

Page 28: ...SVC SHEET 3854V A0146A S ...

Page 29: ...Jun 2004 Printed in Korea P NO 3828VD0178U ...