LG 29FU1RNX, Service Manual

Page 1: ...RVICE MANUAL CAUTION BEFORE SERVICING THE CHASSIS READ THE SAFETY PRECAUTIONS IN THIS MANUAL CHASSIS CW71A MODEL 29FU1RNX MODEL 29FU1RNX ZW website http biz lgservice com Apr 2007 Printed in China P NO MFL33997507 ...

Page 2: ...cautions 3 Control Descriptions 4 Specifications 7 Adjustment Instructions 8 SVC Remocon 15 Trouble Shooting 16 Printed circuit board 19 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: ...e volume adjusts menu settings OK accepts your selection or displays the current mode 6 VCR BUTTONS option control a LG video cassette recorder 7 I II selects the language during dual language broadcast selects the sound output option 8 PSM Picture Status Memory recalls your preferred picture setting 9 SLEEP sets the sleep timer 10 MAIN STILL freezes motion of the picture 11 TELETEXT BUTTONS optio...

Page 5: ...amme 19 INDEX option switches FRONT DISPLAY on or off 20 FAVOURITE selects a favourite programme No function COLOURED BUTTONS These buttons are used for teletext only TELETEXT models or programme edit OK PR VOL PR VOL PLAY FAVOURITE STOP REC REW FF I II SSM LIST PSM SLEEP Q VIEW 0 ARC TV AV MENU PICTURE SOUND 1 2 3 4 5 6 7 8 9 POWER MUTE T U R B O EYE MAIN STILL 1 2 4 3 5 6 20 7 9 12 13 14 15 17 1...

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: ...4 0Mhe X O2 6Khe W2 6Xh 7 1h J L g 7 1 g g g 3 5 g N H g 3 5h V4 0Yh I4 0Mhe O2 6Khe W2 6Xh 7 1h J L g 7 1 g g g 3 5 g N H g 3 5h V4 0Yh I4 0Mhe O2 6Khe W2 6Xh 7 1h J L g 7 1 g g g 3 5 g N H g 3 5h V4 0Yh I4 0Mhe O2 6Khe W2 6Xh 7 1h J L g 7 1 g g g 3 5 g N H g 3 5h V4 0Yh I4 0Mhe O2 6Khe W2 6Xh 7 1h J L g 7 1 g g g 3 5 g N H g 3 5h V4 0Yh I4 0Mhe O2 6Khe W2 6Xh 7 1h J L g 7 1 g g g 3 5 g N H g 3 5...

Page 8: ... check OK message If Error message is displayed check connection of computer jig and set 3 Click Connect tab If Error message is displayed check connection of computer jig and set 4 Click Read tab and then load download file XXXX bin by clicking Read 5 Click Auto tab and set as below 6 Click Run 7 After downloading check OK message 4 EDID Extended Display Identification Data downloads 1 Connect HD...

Page 9: ...tor MSPG 925 Series Color Bar Pattern signal 3 Adjustment 1 Convert input mode into Component 2 Press the ADJ key to enter the adjustment mode and then enter into Auto RGB 3 Run Auto RGB to adjust ADC gain and offset by pressing key If need to restore original value run Reset 11 White Balance adjustment Do screen adjustment first Basically this adjustment is executed automatically For manual adjus...

Page 10: ...n In line adjustment not to change default value is basic Adjust the lattice width of the Top Center Bottom to be the same As being decided by DY value of the using CPT set as default of using CPT 4 VS Vertical Shift Adjust so that the horizontal center line of a digital circle pattern is in accord with geometric horizontal center of the CPT 5 HS Horizontal Shift Adjust the vertical center line of...

Page 11: ...f f Mg Y g Select frequency Ex 87 7MHZ 3 A received frequency in an exclusive remote control or received FM Radio is tuned by 87 7MHz which is same as frequency in OSD 4 Check if a signal generating to a SPEAKER generates in earphone or receiver 5 There is no alternation and setting of adjusted DATA in the process of inspecting FM TX 14 OPTION Adjustment 14 1 Preliminary steps 1 This adjustment de...

Page 12: ...4 6Ke I4 6X O2 0Y W2 0Me O Mf W2 0Y f 0M g 29 32 e e 6K g V4 6X f I Kf V4 6Ke I4 6X O2 0Y W2 0Me O Mf W2 0Y f 0M g 34 42 e e 6K g V4 6X f I Kf V4 6Ke I4 6X O2 0Y W2 0Me O Mf W2 0Y f 0M g 37 11 e e 6K g V4 6X f I Kf V4 6Ke I4 6X O2 0Y W2 0Me O Mf W2 0Y f 0M g 12 9 e e 6K g V4 6X f I Kf V4 6Ke I4 6X O2 0Y W2 0Me O Mf W2 0Y f 0M g 10 8 10 PAL Items VL VA SC VS HS EW ET EP CRNU CRNL BOW ANGLE 100 100 ...

Page 13: ...14 15 62 64 23 25 16 13 63 64 30 33 31 33 42 41 11 12 9 10 8 10 Pro 50Hz 0 1 2 2 2 2 2 2 1 1 2 0 3 0 1 0 2 2 4 1 0 4 Line Adjustment fixed fixed fixed fixed PAL PAL NTSC Items VL VA SC VS HS EW ET EP CRNU CRNL BOW ANGLE 100 100 Hz 14 62 23 16 63 30 31 42 11 9 8 10 Pro 50Hz 1 2 1 1 1 0 e e 6K g V4 6X f I Kf V4 6Ke I4 6X O2 0Y W2 0Me O Mf W2 0Y f 0M g 2 2 5 1 1 1 e e 6K g V4 6X f I Kf V4 6Ke I4 6X O...

Page 14: ...POINT DC REST RGB OUT MODE V JUMP V PHASE VRAMP PHASE SHOOT BALANCE ACB POSITION V BTM BLK1 V BTM BLK2 H EHT V EHT V TOP BLK BLK OFF V GUARD RGB CLP ACB MODE P MODE ABL GAIN ABL POINT WPS UNI COLOR ACB ADJ INPUT MODE LTI MODE BRIGHTNESS COLOR SHARPNESS SHARP F0 WHITEPEAKBLUE TINT CDE CORING SRT NO 1 2 3 4 5 6 7 8 9 10 11 12 13 14 1 2 3 4 5 6 7 8 9 10 11 12 13 14 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Me...

Page 15: ... 15 SVC REMOCON ...

Page 16: ...4 Check around Q123 Q125 Q127 NO OK Waveform of Digital Board P108 R G B_OUT Check IC900 NO NO NO NO NO NO NO YES YES YES YES OK Waveform of CPT SOKET CATHODE RK GK BK Check around each Jack Waveform of MAIN1 SIF Waveform of Digital IC100 53 Check around IC100 Check around IC100 Check TU101 IF Assy Check around IC100 Waveform of MAIN1 IC601 1 2 L 14 15 R Waveform of Digital Board IC100 60 63 AV1 2...

Page 17: ...3 204 SCL SDA Check IC100 134 ABN Check IC100 154 IR 143 144 Key In Check ST_3 3V of IC100 170 208 ST_1 8V of IC100 1561719 Check MAIN Board of Power Line Replace X100 Replace R323 R325 Check Abnormal Circuit Check Digital P105 P107 connector NO NO LOW NO NO ...

Page 18: ... the output IC830 IC840 IC843 Is the waveform at Drain Q422 normal Check the voltage at pin 2 of IC801 Check Replace IC801 Check IIC bus lines SDA SCL Check ST_Voltage Check Replace D801 Check the voltage of C804 Does the square waveform from Pin 11 of IC106 appear Is the voltage at VCC of IC100 ST_1 8V and ST_3 3V Check F1701 Fuse on PSW Board Check Replace F1701 ...

Page 19: ... 19 PRINTED CIRCUIT BOARD MAIN ...

Page 20: ... 20 CONTROL POWER HARMONICS IF DEMODULATION ...

Page 21: ... 21 DIGITAL CPT DRIVE LED PRE AMP ...

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

Page 23: ... 23 MEMO ...

Page 24: ... 24 EXPLODED VIEW 520 560 112 150 170 300 120 120 540 101 310 530 330 590 320 174 400 943 913 510 550 580 ...

Page 25: ...5588101 Hand Insert PCB Assembly SUB M I CW71A 29FS6 CPT DRIVE 520 EBR37597705 Hand Insert PCB Assembly MAIN M I CW71A 29FU1RNX ZW QD EBR37597707 Hand Insert PCB Assembly MAIN M I CW71A 29FU1RNX ZW KDRLCEY 530 EBR35582003 Hand Insert PCB Assembly SUB M I CW71A 29FU1 CONTROL KEY EBR37596203 Hand Insert PCB Assembly SUB CONTROL M I CW71A 29FU1 540 EBR35581306 Hand Insert PCB Assembly SUB M I CW71A F...

Page 26: ... RGP15J 600V 1300MV 5UA 50A 250NS 1N4148 1V 100V 150MA 500MA 4NSEC RU3AM 600V 1100MV 10UA 50A 90NSE RU1A 600V 2 5V 10UA 15A 400NSEC LOCA NO PART NO DESCRIPTION HIC920 IC100 IC100 IC102 IC103 IC105 IC106 IC109 IC112 IC114 IC115 IC116 IC301 IC401 IC601 IC801 IC802 IC804 IC812 IC830 IC831 IC833 IC840 IC843 IC880 IC900 ICX100 SW Q001 Q100 Q103 Q104 Q105 Q106 Q108 Q109 Q111 Q112 Q113 Q114 Q117 Q118 Q12...

Page 27: ...M GDZJ 27B 27V 24 97TO26 26V 45OHM GDZJ8 2B 8 2V 7 78TO8 19V 20OHM LOCA NO PART NO DESCRIPTION ZD650 ZD801 ZD802 ZD803 ZD914 C100 C101 C101 C102 C102 C103 C104 C105 C105 C106 C107 C108 C109 C110 C1101 C1102 C1103 C111 C112 C113 C114 C115 C116 C117 C118 C119 C120 C121 C121 C122 C122 C123 C123 C124 C125 C126 C127 C128 C129 C129 C130 C131 C132 C133 C134 0DZ820009BF 0DZ620009AK 0DZ560009AH EAH35179201...

Page 28: ...7R LOCA NO PART NO DESCRIPTION C183 C184 C185 C186 C187 C188 C189 C190 C191 C192 C193 C194 C195 C196 C197 C198 C199 C200 C201 C201 C202 C202 C203 C203 C204 C204 C205 C205 C206 C207 C208 C209 C210 C211 C212 C213 C214 C215 C216 C217 C218 C219 C220 C221 C222 C223 C225 C226 C227 C228 C229 C230 0CK103CK56A 0CK104CK56A 0CK104CK56A 0CC200CK41A 0CC200CK41A 0CK103CK56A 0CE475DK618 0CK105CD56A 0CE106DK618 0...

Page 29: ... 50V X7R LOCA NO PART NO DESCRIPTION C296 C297 C299 C300 C301 C301 C302 C302 C303 C304 C305 C306 C307 C308 C309 C310 C311 C311 C312 C313 C314 C316 C317 C318 C319 C321 C322 C323 C324 C325 C326 C327 C328 C329 C330 C331 C332 C333 C334 C335 C336 C337 C338 C339 C340 C341 C344 C345 C346 C347 C348 C350 181 007H 181 007H 0CK104CK56A 0CE476DD618 0CE108BH618 0CE476DD618 0CK104CK56A 0CN1020K519 0CN1020K519 0...

Page 30: ... DESCRIPTION C815 C816 C817 C818 C819 C820 C821 C822 C823 C824 C825 C828 C830 C831 C833 C834 C835 C837 C838 C840 C841 C842 C843 C844 C845 C846 C847 C848 C850 C851 C852 C853 C854 C855 C856 C860 C861 C862 C863 C864 C870 C871 C874 C880 C881 C882 C883 C884 C885 C886 C890 C891 0CK8210K515 181 007C 0CN8210K519 0CE476DK618 0CK22202510 0CE108DD618 0CE227DD618 181 091Q 181 091Q 0CE108BF618 0CN1020K519 181 ...

Page 31: ...00K 10UH Inductor Multilayer Chip MLI 201212 100K 10UH Inductor Multilayer Chip MLI 201212 100K 10UH LOCA NO PART NO DESCRIPTION Inductor Multilayer Chip MLI 201212 100K 10UH Inductor Multilayer Chip MLI 201212 100K 10UH Inductor Wire Wound Axial LAL02TB100K 10UH Inductor Wire Wound Axial LAL03TB101K 100UH Inductor Wire Wound Axial LAL03TB101K 100UH Inductor Wire Wound Axial LAL03TB101K 100UH Indu...

Page 32: ...9 R119 R120 R121 R122 R123 R126 R128 R129 R129 R130 R130 R131 R132 R133 R134 R135 R135 R136 R137 R138 R139 R140 R141 R142 R143 R144 R145 R146 R146 R147 R148 R149 R150 R151 R152 R153 R154 R155 R155 R156 R156 R157 R157 R158 R158 0RJ1000D677 0RD4701F609 0RJ1000D677 0RJ1001D677 0RJ0752D677 0RJ1301D477 0RD1803F609 0RJ4701D677 0RJ0752D677 0RJ0752D677 0RJ0752D677 0RJ0752D677 0RJ0000D677 0RJ1000D677 0RD10...

Page 33: ... 1608 LOCA NO PART NO DESCRIPTION R210 R210 R211 R211 R212 R214 R215 R216 R217 R218 R219 R220 R221 R222 R223 R224 R225 R226 R228 R229 R230 R231 R232 R233 R234 R235 R236 R238 R239 R240 R241 R242 R243 R244 R245 R246 R247 R248 R249 R250 R251 R252 R253 R254 R255 R256 R257 R258 R259 R260 R261 R262 0RD4703F609 0RJ0472D677 0RD4703F609 0RJ0472D677 0RJ0472D677 0RJ0472D677 0RJ0472D677 0RJ0472D677 0RJ0472D67...

Page 34: ...6W 3 2X1 LOCA NO PART NO DESCRIPTION R320 R321 R323 R324 R325 R326 R327 R328 R331 R332 R333 R334 R337 R338 R339 R340 R341 R342 R345 R346 R347 R349 R351 R353 R354 R355 R356 R358 R359 R360 R362 R363 R366 R369 R371 R372 R373 R376 R377 R392 R393 R394 R395 R396 R399 R400 R401 R401 R402 R402 R403 R403 0RJ2203D677 0RJ1003D677 0RJ3301D677 0RJ4700D677 0RJ0000D677 0RJ0000D677 0RJ0000D677 0RJ1000D677 0RJ1503...

Page 35: ...10W 1608 LOCA NO PART NO DESCRIPTION R442 R443 R444 R444 R445 R445 R446 R447 R447 R448 R448 R449 R449 R450 R451 R452 R454 R456 R457 R458 R460 R651 R652 R653 R654 R657 R658 R659 R670 R671 R672 R673 R800 R803 R804 R805 R806 R807 R808 R809 R813 R814 R815 R816 R818 R820 R821 R822 R823 R824 R825 R826 0RS6800K607 0RJ0000D677 0RD4701F609 0RJ0000D677 0RF0470K607 0RJ0000D677 0RF0470K607 0RD3901A609 0RJ4701...

Page 36: ...331V 330OHM 5 1 2W 9 5X3 RD 96T1J39K0 39KOHM 5 1 6W 3 2X SDT S 105LMR AC250V DC30V DC5V 5 SDT S 105LMR AC250V DC30V DC5V 5 LOCA NO PART NO DESCRIPTION RT1146 RT1148 RT1149 RT1150 RX105 RX107 RX110 RX113 RX114 RX115 RX118 RX120 RX125 RX127 RX134 SW1101 SW1102 SW1103 SW1104 SW1105 SW1106 SW1111 SG904 J217 J227 L112 L113 L115 L116 L117 L118 L119 L120 L121 L124 L125 L126 L128 L138 L142 L143 L202 L802 ...

Page 37: ...200JB8012T 10MH 31X31X25MM SQE2 150 F06T 20MH 38X26X43MM SQE3535 SX 1 14 31818MHZ 30PPM 16PF 14 HC 49 U 4MHZ 30PPM 30PF 4MHZ 30 K7257M 33 90MHZ 38 90MHZ 17X3 9X K9650M B39389 K9650 M100 33 90_ Manual Owners PRINTING USER CW71A LG EU Remote Controller MC05HA W TXT W O PIP Connector RF BS901 STRAIGHT RF ADAPTER Box BOX DW 836 454 642 2 COLOR 29FU1 Fuse Time Delay 0218 005 GLASS 250V 5A Jack DIN DC1R...

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Page 39: ...SVC SHEET EBY33537201 S ...