LG RT-29FB55R Service Manual Download Page 2

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CONTENTS

Contents ...................................................................................................................2

Safety Precautions..............................................................................................3

Control Descriptions..........................................................................................4

Specifications........................................................................................................7

Adjustment Instructions .................................................................................8

Trouble Shooting.................................................................................................12

Printed circuit board.........................................................................................16

Block Diagram ......................................................................................................18

Exploded View....................................................................................................20

Exploded View Parts List ..............................................................................21

Replacement Parts List .................................................................................22

SVC. Sheet..................................................................................................................

All manuals and user guides at all-guides.com

Summary of Contents for RT-29FB55R

Page 1: ...S IN THIS MANUAL CHASSIS MC 049A MODEL RT 29FB55R RB RE MODEL RT 29FB55RP RQ V MODEL RT 29FB55VB VE VQ website http biz LGservice com e mail http www LGEservice com techsup html ON OFF MENU OK VOL PR VIDEO AUDIO L R AV3 All manuals and user guides at all guides com a l l g u i d e s c o m ...

Page 2: ...ol Descriptions 4 Specifications 7 Adjustment Instructions 8 T rouble Shooting 12 Printed circuit board 16 Block Diagram 18 Exploded View 20 Exploded View Parts List 21 Replacement Parts List 22 SVC Sheet All manuals and user guides at all guides com ...

Page 3: ...urrent 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 ohm meter to the AC plu...

Page 4: ...d 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 selects TV or AV mode switch...

Page 5: ...ects 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 used for teletext only ...

Page 6: ...me while the menus not display 10 D D E E adjusts the function or selects a pro gramme switches the set on from standby 11 TURBO SOUND PICTURE option switches Turbo sound or Turbo picture function on or off 12 HEADPHONE SOCKET option Connect the headphone plug to this socket 13 AUDIO VIDEO IN SOCKETS AV3 Connect the audio video out sockets of external equipment to these sockets S VIDEO AUDIO IN SO...

Page 7: ...O M 5 Warm up TV set for more than 20min before the measurement Standard input Voltage 110 240 50 60Hz 230 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 Specification PAL SECAM BG ...

Page 8: ...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 the TV set by move direct...

Page 9: ...ter 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 Normal 60Hz NTSC 2 Adj...

Page 10: ...ight 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 like 111 111 111 111 in ...

Page 11: ...URBO 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 All manuals and user guides at all guides com a l l g u i d e s c o m ...

Page 12: ...e 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 check and Replace Chec...

Page 13: ...tor 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 IC801 Ok Check Replace T402...

Page 14: ...o 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 All manuals and user guides at all guides co...

Page 15: ...e 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 P603A All manuals and user ...

Page 16: ... 16 PRINTED CIRCUIT BOARD MAIN All manuals and user guides at all guides com a l l g u i d e s c o m ...

Page 17: ...CPT VM 17 PIP All manuals and user guides at all guides com ...

Page 18: ...222 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 All manuals and user guides at all guides com...

Page 19: ... 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 All manuals and user guides at all guides com ...

Page 20: ... 20 EXPLODED VIEW 943 400 330 320 310 913 170 150 112 153 120 300 174 520 104 570 105 121 510 700 All manuals and user guides at all guides com ...

Page 21: ...ONE MC049A SY ABANS 310 5020V00676C BUTTON CONTROL RT 29FB55RB 117A ABS HF 380 6KEY 5020V00715B BUTTON CONTROL RT 29FB55RE ABS HF 380 6KEY 117A 320 320 062E SPRING KNOB RT 29FB55RE ALT 320 075B SPRING COIL DIA 7 5MM H 15 5MM 330 5020V00677E BUTTON POWER RT 29FB55RB 84B ABS HF 380 1KEY 5020V00716B BUTTON POWER RT 29FB55RE ABS HF 380 1KEY 84B 400 3809V00321A BACK COVER ASSEMBLY RT 29FB50VE 2PHONE LG...

Page 22: ...SVC SHEET 3854V A0146A S All manuals and user guides at all guides com ...

Page 23: ... 20 EXPLODED VIEW 943 400 330 320 310 913 170 150 112 153 120 300 174 520 320 All manuals and user guides at all guides com ...

Page 24: ...PT SUPPORTER 300 3091V00445K CABINET ASSEMBLY RT 29FB55RB SET STEREO E_PHONE MC049A 117A 310 5020V00676C BUTTON CONTROL RT 29FB55RB 117A ABS HF 380 6KEY 320 320 075B SPRING COIL DIA 7 5MM H 15 5MM 330 5020V00677E BUTTON POWER RT 29FB55RB 84B ABS HF 380 1KEY 400 3809V00A55E BACK COVER ASSEMBLY RN 29FB50T ATLLKX 51SF MC022A 510 6871VSME79A PWB PCB ASSEMBLY SUB CPT MC049A 29Ó FLAT VM W PIP 520 6871VM...

Page 25: ...DO41 500V 1 0A 30A 10UA TVR06J TP 600V 250NSEC TS6P05G ST TSOP 6 600V 6A A SEC A GDZJ9 1B TP DO34 0 5W 9 1V GDZJ33B TP DO34 0 5W 33 0V GDZ5 1B TP DO34 0 5W 5 1V 0 02A MTZJ11B TP ROHM K DO34 11V 5UA LOCA NO PART NO DESCRIPTION HIC920 IC11 IC11 IC12 IC13 IC301 IC302 IC601 IC802 IC821 IC822 IC824 IC825 IC826 IC853 IC901 ICP01 ICP02 Q105 Q106 Q102 Q103 Q104 Q11 Q121 Q180 Q181 Q182 Q183 Q184 Q185 Q186 ...

Page 26: ...PTION C218 C219 C224 C23 C24 C25 C252 C255 C256 C303 C304 C306 C308 C309 C310 C402 C402 C403 C404 C405 C407 C408 C409 C410 C411 C413 C414 C415 C416 C417 C419 C420 C421 C422 C501 C502 C503 C504 C505 C506 C507 C508 C509 C510 C511 C512 C513 C514 C515 C516 C517 C518 0CN1010K519 0CN1010K519 0CE226DD618 0CN1040K949 0CE226DD618 0CE105DK618 0CN2210K519 0CN2210K519 0CE226DF618 0CQ1041N409 0CE107DJ618 0CQ33...

Page 27: ... C801 C802 C803 C804 C806 C807 C809 C810 C811 C813 C813 C815 C817 C819 C820 C821 C822 C823 C824 C825 C826 C827 C828 C829 C830 C831 C833 C834 C835 C836 C837 C838 C839 C840 C843 C845 C868 C901 C902 C903 C904 C907 C920 0CF3341L438 0CF3341L438 0CF3341L438 0CF3341L438 0CK1030K945 0CF3341L438 0CF3341L438 0CE476DH618 0CF3341L438 0CQZVBK002C 0CQZVBK002A 0CE337KV6A0 0CK10201515 0CK10201515 181 091U 0CE105D...

Page 28: ...ORMER EER5345 300UH 30TURNS LOCA NO PART NO DESCRIPTION P13B P403B P551B P552B F802 F804 F805 F806 F806 FR402 FR403 FR404 FR405 FR901 J110 J204 J208 J211 J220 J222 J261 J509 J510 J512 J566 R101 R102 R103 R104 R105 R106 R107 R108 R109 R11 R110 R111 R112 R113 R12 R121 R122 R124 R125 R126 R127 R128 R129 387 A09J 387 B08G 6932V25002H 6932V25002H 0RP0050H709 0RP0050H709 0RP0020J809 0RP0020J809 0RP0020J...

Page 29: ... R316 R317 R318 R319 R32 R320 R321 R322 R323 R324 R325 R326 R328 R328 R33 R34 R34 R35 R37 R38 R401 R403 R404 R405 R408 R409 R410 R411 R412 R413 R414 R415 R416 R416 R417 R42 R421 R421 R422 R449 R501 R502 R502 R503 R503 R504 R505 R506 R507 R508 R509 0RS2700K607 0RD1000F609 0RD2702F609 0RN2001F409 0RN8202F409 0RD3301F609 0RD1001F609 0RD0561A609 0RD1501F609 0RD2702F609 0RD4700F609 0RD2701A609 0RD1501A...

Page 30: ...2 3 3K OHM 1 6 W 5 00 TA52 2 2 OHM 1 6 W 5 00 TA52 100 OHM 1 6 W 5 TA52 1K OHM 1 6 W 5 TA52 270 OHM 1 6 W 5 TA52 100 OHM 1 6 W 5 TA52 100 OHM 1 6 W 5 TA52 100 OHM 1 6 W 5 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 0RD1000F609 0RD1000F609 0RD1000F609 0RD1000F609 0RKZVTA001K 180 822M 0RS4702K619 0RS4702K619 180 A01P 0RD2200A609 0RD1501F609 0RD1501...

Page 31: ...PT 152F L3N S 23 HANDOK RADIAL BULK WSP 122N 1200V 100V 300V AXIAL TP FERRITE BFD3565R2F TAPING FERRITE AXIAL 62MM 1UH NY 3 5X6 0MM FERRITE AXIAL 62MM 1UH NY 3 5X6 0MM FERRITE AXIAL 62MM 1UH NY 3 5X6 0MM FERRITE AXIAL 62MM 1UH NY 3 5X6 0MM FERRITE AXIAL 62MM 1UH NY 3 5X6 0MM FERRITE AXIAL 62MM 1UH NY 3 5X6 0MM SQE3535 20MH PHY TURN RESONATOR HC49U 20 250MHZ 30PPM RESONATOR HC49U 20 250MHZ 30PPM B3...

Page 32: ...P NO 3854VA0146A S1 2004 4 16 All manuals and user guides at all guides com ...

Page 33: ...SVC SHEET 3854V A0146A S All manuals and user guides at all guides com ...

Page 34: ...Aug 2004 Printed in Korea P NO 3828VD0178B All manuals and user guides at all guides com ...

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