LG 29FU1RLX Service Manual Download Page 18 | Manualshive

Page: 18 / 26

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4) No Picture/ No Sound

Is any OSD displayed?

OK

NO

NO

OK

OK

NO

NO

OK

OK

NO

OK

OK

OK

P20A (R, G, B out of
IC501)

P20A (R, G, B out of
IC501)

Replace IC501

Check pin7, 8 SCL,
SDA

Check IC12(EEPROM)
& SCL, SDA, Line

Check pin3 Reset
Voltage

Check IC501 pin 83,
84, 85 (R, G, B out)

Check SMPS Trans
Secondary Voltage

Go to No sound/
picture OK

Check the waveform
pin73(H-out)

Check IC501 pin 83,
84, 85 (R, G, B out)

Check receiving system in MENU
& execute Auto - Program

Does the auto - Program
operate properly

Store on manual -program MENU

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Summary of Contents for 29FU1RLX

Page 1: ...VICE MANUAL CAUTION BEFORE SERVICING THE CHASSIS READ THE SAFETY PRECAUTIONS IN THIS MANUAL CHASSIS CW62C MODEL 29FU1RLX MODEL 29FU1RLX T1 website http biz LGservice com June 2007 Printed in China P NO MFL37794405 ...

Page 2: ...ety Precautions 3 Control Descriptions 4 Specifications 7 Adjustment Instructions 8 T rouble Shooting 16 Printed circuit board 20 Block Diagram 22 Exploded View 24 Exploded View Parts List 25 Replacement Parts List 26 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: ...ans programmes automatically F G Volume Up Down adjusts the volume adjusts menu settings OK accepts your selection or displays the current mode 5 TELETEXT BUTTONS option These buttons are used for teletext For further details see the Teletext section 6 SLEEP sets the sleep timer 7 PIP BUTTONS option PIP switches the sub picture on or off PR selects a programme for the sub picture SWAP alternates b...

Page 5: ... II selects the language during dual language broadcast selects the sound output option 13 Q VIEW or YELLOW returns to the previously viewed programme 14 LIST or BLUE displays the programme table No function COLOURED BUTTONS These buttons are used for teletext only TELETEXT models or programme edit Without TELETEXT PIP PR PR OK VOL VOL With PIP Without TELETEXT PR PR OK VOL VOL Q VIEW LIST 1 2 3 4...

Page 6: ...hes the set on from standby 5 REMOTE CONTROL SENSOR Note Only use the supplied remote control handset When you use others they will not be able to function 6 AUDIO VIDEO IN SOCKETS AV IN3 option Connect the audio video out sockets of external equipment to these sockets S VIDEO AUDIO IN SOCKETS S AV Connect the video out socket of an S VIDEO VCR to the S VIDEO socket Connect the audio out sockets o...

Page 7: ...t Remark Korea Japan Taiwan North America Middle South American EU Non EU MODEL OPTION Korea Taiwan North America Middle south American Japan 1 EU Non EU Model 2 NTSC M Multi model NTSC M Korea Middle south America North America Japan Taiwan NON EU EU NTSC MODEL PAL MODEL 200 PR W O TXT Specification 1 NTSC M 2 NTSC M PAL M N 1 PAL SECAM BG 2 PAL SECAM DK 3 PAL I I 4 NTSC M 5 NTSC 4 43 AV 6 SECAM ...

Page 8: ...DY as possible as you can d Make R Land be centered as cross Purity Magnet That time 4th 6th magnet should keep free gauss status e Make uniform RED Raster as moving DY Check there is purity problem or not on R G B white Raster Then Fix screw of DY At this time be careful about inclination and DY should be fixed keeping horizontality f Check the TV in direction of EAST WEST SOUTH NORTH Adjust with...

Page 9: ...ly to enter Deflection Adjustment mode 4 Press the CHD E Key to select adjustment item 5 Press the F G Key to change the data 3 4 2 Adjustment 1 Deflection Setting Data Adjustment adjust in N50Hz PAL mode firstly then separately adjust N60Hz NTSC Z60Hz N50Hz W50Hz Z50Hz Model with ARC function In N60Hz adjustment data more than N60Hz can auto transfer accordingly to N60Hz compensate value please p...

Page 10: ... part in the top and the undersurface of the picture are the same 11 H PARALL ANGLE In angle adjustment adjust until inclination of center vertical line should be vertical precisely 12 SCORRECT S CORRECTION Adjust so that the lattice scopes of top center bottom of received pattern are the same Use the default setting data Initial data of CPT owing to using DY data of CPT 13 V SCROLL Keep accord wi...

Page 11: ...C 60HZ but it needs confirm adjustment state again in NTSC System Adjust if necessary 3 6 SVC DEFAULT DATA DATA below is supervised by EEPROM MASTER PAL Table 5 SERVICE 1 Table 6 SERVICE 3 17 38 32 32 24 17 30 25 35 35 32 32 30 21 25 2 2 0 0 1 Invar AK Sus TS 1 3R Adjust Item V SLOPE V SHIFT V LINEAR V AMPLIT H SHIFT EW WIDTH EW PARAB EW TRAPE EW UPCOR EW LOCOR H BOW H PARALL SCORRECT V SCROLL V Z...

Page 12: ...CH TURBOP S QUARRAN Arabia COUNTRY EU LGEINVOL Southeast Asia BLUEBACK EU Southeast Asia TEXT TS AK OPTION1 OPTION2 OPTION3 OPTION4 OPTION5 Description 0 29 S Slim 1 28 Flat 2 29 Flat 3 25 Flat BG DK I M BG DK I L W O TXT 100PR W TXT 200PR 0 FLOF 1 TOP Germany Swiss Austria Italy 0 OFF 1 ON Auto channel memory system 0 OtherArea 1 China AustraliaFrequencytable 0 OtherCPT 1 TS AKCPT 0 RF stereo 1 A...

Page 13: ...RVED RESERVED ENGLISH EAST EU ALL ENGLISH RUSSIAN RESERVED RESERVED RESERVED RESERVED RESERVED ENGLISH EU 7EA WEST EU ALL ENIGLISH GREEK RESERVED RESERVED RESERVED RESERVED ENGLISH INDONESIAN MALAY VIETNAMESE THAI ENGLISH GERMAN RUMANIAN POLISH HUNGARIAN CZECH RUSSIAN BULGARIAN ENGLISH RUSSIAN ENGLISH GERMAN FRENCH ITALIAN SPANISH NETHERLANDISH PORTUGUESE ENGLISH GERMAN FRENCH ITALIAN SPANISH NETH...

Page 14: ...end receive state checking method FM Receiver Model FM TRANSMITTER Performance checking process after antenna lay out FM TRNASMITTER Function send TV sound MONITOR Output to FM by receiver in MIC BOARD and achieve sound signal by special remocon and ear phone Remarks Even if don t use special remocon ordinate FM receiver equipment can receive sound signal with receive frequency of OSD setting Chec...

Page 15: ... value is set since Model design for standard so adjustment should not be done at manufacture process This adjustment specification shows for only reference Audio Out Level SPEC PAL B G D K I 500mVrms at 54 modulation ratio SECAM B G D K L L 500mVrms at 54 modulation ratio 15 Power Input MEMORY CHANNEL SOUND MUTE PSM XD SSM TORBO SOUND AVL BALANCE ON OFF TIME AUTO SLEEP CHILD LOCK DEGAUSS EYE TILT...

Page 16: ...eck the waveform at pin 4 2 of IC601 Check Replace Q601 NO OK Check the waveform at pin 6 of IC601 Check Replace IC601 NO OK Check the waveform at pin 8 9 11 12 of IC601 Check Replace R823 D826 Check the Heater voltage of CPT 6 6 4 Vrms Check R G B out of CPT board Check IC901 P403A Check 197V line of CPT Board if no problem check and Replace Check the Heater pulse of FBT T402 Check FR901 P403A P9...

Page 17: ...501 Check T401 each pin voltage Check Q401collect waveform Check Replace T402 Check the voltage pin4 of IC810 Check Replace IC810 IC802 Q830 Check Fuse and Diode of secondary Load of SMPS trans T801 Check the B at D829 cathode OPEN Check Replace DB801 NO Check Replace Fuse and IC810 NO OK NO Normal Abnormal Check Replace Q402 Check Replace T401 Check Replace Q401 Check Q402 collector waveform Chec...

Page 18: ...k pin7 8 SCL SDA Check IC12 EEPROM SCL SDA Line Check pin3 Reset Voltage Check IC501 pin 83 84 85 R G B out Check SMPS Trans Secondary Voltage Go to No sound picture OK Check the waveform pin73 H out Check IC501 pin 83 84 85 R G B out Check receiving system in MENU execute Auto Program Does the auto Program operate properly Store on manual program MENU ...

Page 19: ...pin57 58 of IC501 OK Check the signal line of SPK N P Check the waveform at pin4 12 of IC601 NO NO OK Check pin5 mute of IC501 Check the waveform at pin6 of IC601 OK NO NO Check the connection of AV equipment AV OK OK Check the connection of side or Front AV Board P201A Check the voltage at pin5 7 of IC601 Check Replace R823 D826 Correct the Board Check the waveform at pin8 9 11 12 of IC601 Replac...

Page 20: ... 20 PRINTED CIRCUIT BOARD MAIN ...

Page 21: ... 21 CONTROL LED Power DEFLECTION option PIP option ...

Page 22: ...BLOCK DIAGRAM 22 ...

Page 23: ...MEMO 23 ...

Page 24: ... 24 EXPLODED VIEW 300 120 112 120 540 101 311 310 530 520 102 102 330 150 170 591 590 320 400 ...

Page 25: ...P No EBY37965601 2007 04 04 ...

Page 26: ...SVC SHEET EBY37965601 S ...

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