LG DU-42PX12XD, Service Manual

Page 1: ...VICE MANUAL CAUTION BEFORE SERVICING THE CHASSIS READ THE SAFETY PRECAUTIONS IN THIS MANUAL CHASSIS AF 044A MODEL DU 42PX12XD CANADA http biz lgservice com USA http www lgservice com http lgservice com techsup html ...

Page 2: ...to the AC plug prongs tied together and touch other ohm meter lead in turn to each exposed metallic parts such as antenna terminals phone jacks etc If the exposed metallic part has a return path to the chassis the measured resistance should be between 1MΩ and 5 2MΩ When the exposed metal has no return path to the chassis the reading must be infinite An other abnormality exists that must be correct...

Page 3: ...ATIONS 4 DESCRIPTION OF CONTROLS 5 ADJUSTMENT INSTRUCTIONS 8 BLOCK DIAGRAM 12 EXPLODED VIEW 14 16 EXPLODED VIEW PARTS LIST 15 17 REPLACEMENT PARTS LIST 18 SCHEMATIC DIAGRAM PRINTED CIRCUIT BOARDS TABLE OF CONTENTS ...

Page 4: ...4 x 768 Dot 16 770 000 256 steps of each R G and B 32 104 F 0 40 C Less than 80 6561 feet 2000m 41 1210 27 5 701 11 6 295 79 8 36 2 Width inches mm Height inches mm Depth inches mm Weight pounds kg Power requirement Television System Program Coverage External Antenna Impedance Resolution Color Operating Temperature Range Operating Humidity Range Maximum Elevation DU 42PX12XD SPECIFICATIONS ...

Page 5: ... be somewhat different from your TV Front Panel Controls Front Panel Controls POWER Button Remote Control Sensor VOLUME F F G G Buttons Power Standby Indicator Illuminates red in standby mode Illuminates green when the TV is turned on CHANNEL E E D D Buttons MENU Button TV VIDEO Button DESCRIPTION OF CONTROLS ...

Page 6: ...ital Audio Output Connect digital audio from various types of equipment Note In standby mode these ports will not work Audio Video Input 1 Connect audio video out put from an external device to these jacks DVD DTV Input Component 1 2 Connect a component video audio device to these jacks Remote Control Port Connect your wired remote control here S Video Input Connect S Video out from an S VIDEO dev...

Page 7: ...oll the Surf channel list CC Select a closed caption Off EZ Mute and On FLASHBK Tunes to the last channel viewed THUMBSTICK Up Down Left Right OK Allows you to navigate the on screen menus and adjust the system settings to your preference CHANNEL UP DOWN Selects available channels found with EZ scan EXIT Clears all on screen displays and returns to TV viewing from any menu VIDEO Adjusts the factor...

Page 8: ...S R C Select the 7 White Pattern using CH Key and press the Enter Y Key Display the 100 Full White Pattern Set is activated HEAT RUN without signal generator in this mode If you turn on a still screen more than 20 minutes Especially Digital pattern 13 CH Cross Hatch Pattern an afterimage may occur in the black level part of the screen 3 EPLD Download 1 Test Equipment PC Jig for download 2 Connect ...

Page 9: ...ownload This is the function that enables Plug and Play 1 EDID DATA 42PY10 EDID for DVI DDC Display Data Channel Data EDID table 00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F _________________________________________________________ 00 00 FF FF FF FF FF FF 00 1E 6D 01 01 01 01 01 01 10 06 0D 01 03 98 5C 34 96 08 CF 72 A3 57 4C B0 23 20 09 45 5D EF CE 00 31 D9 31 59 45 59 01 01 01 01 30 01 01 01 ...

Page 10: ...FD 00 30 60 4C 1E 64 0F 00 0A 20 20 20 20 20 20 00 00 00 FC 70 00 2D 36 30 50 59 31 30 20 20 20 20 20 0A 00 E7 EDID DATA for RGB EDID table 0 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F __________________________________________________________ 00 00 FF FF FF FF FF FF 00 1E 6D 01 01 01 01 01 01 10 03 0D 01 03 08 6E 3E 96 08 CF 72 A3 57 4C B0 23 20 09 45 5D EF CE 00 31 D9 31 59 45 59 01 01 01 01 3...

Page 11: ...X 0 285 0 003 Y 0 285 0 003 Color temperature 9 000 K 500 K 8 After adjustment is complete move to Ez Adjust screen by pressing the ENTER Y KEY Then exit the adjustment mode by press ADJ KEY 7 4 Main Sub Contrast Adjustment Main Sub contrast adjustment reduces the contrast difference of Main Sub screen in PIP POP SPLIT Screen 1 After receiving signal for at least 1 second press the ADJ KEY on the ...

Page 12: ... 12 BLOCK DIAGRAM ...

Page 13: ... 13 NOTES ...

Page 14: ... 14 EXPLODED VIEW X2 Module 300 301 304 302 303 410 402 520 560 530 531 570 120 601 600 305 121 101 103 200 580 204 207 201 205 206 202 203 590 490 102 101 400 430 ...

Page 15: ...R ASSY AL FILTER RIGHT DU 42PX12XD C SKD 304 4980V01070J SUPPORTER ASSY AL FILTER LEFT DN 42PX12X 7T 4980V01070K SUPPORTER ASSY AL FILTER LEFT DU 42PX12XD C SKD 305 3790V00709C FILTER MECH LGM42 09 MITSUI 42 ETCHING MESH GLASS FILTER 400 3809V00610B BACK COVER ASSEMBLY 3809V00610D BACK COVER ASSEMBLY DU 42PX12XD NON C SKD WITH PEM NUT 402 3301V00023S PLATE ASSEMBLY AV VSC TUNER DU 42PX12XD LGEUS 4...

Page 16: ... 16 EXPLODED VIEW X2A Module 300 301 304 302 303 400 401 430 410 402 520 560 530 531 570 120 601 600 305 121 590 490 205 206 207 200 101 103 201 202 203 204 580 102 101 ...

Page 17: ...69J SUPPORTER ASSY AL FILTER RIGHT DU 42PX12XD 20 6T 304 4980V01070K SUPPORTER ASSY AL FILTER LEFT DU 42PX12XD C SKD 4980V01070J SUPPORTER ASSY AL FILTER LEFT DU 42PX12XD 20 6T 305 3790V00709C FILTER MECH LGM42 09 MITSUI 42 ETCHING MESH GLASS FILTER 400 3809V00610D BACK COVER ASSEMBLY DU 42PX12XD NON C SKD WITH PEM NUT 3809V00610B BACK COVER ASSEMBLY DU 42PX12XD NON LGEUS C BOX WITH LABEL 402 3301...

Page 18: ...NO PART NO DESCRIPTION IC100 IC101 IC101 IC103 IC104 IC107 IC108 IC109 IC110 IC111 IC112 IC114 IC200 IC201 IC201 IC202 IC202 IC203 IC203 IC204 IC204 IC205 IC205 IC206 IC206 IC209 IC210 IC301 IC303 IC304 IC305 IC306 IC308 IC310 IC400 IC401 IC402 IC403 IC404 IC501 IC502 IC503 IC600 IC601 IC602 IC603 0IMMRNE002A 0ISO206900A 0IKE702900G 0IMCRSS016A 0IPH741400E 0IMMRAL053A 0IMMRAL053A 0IMMRSS041D 0IMMR...

Page 19: ... CHIP 2SC3875S ALY KEC CHIP KRC102S SOT 23 NA NA CHIP 2SC3875S ALY KEC LED SAM2333 KDS226 TP KEC KDS226 TP KEC KDS226 TP KEC KDS226 TP KEC ZENERS RLZ8 2B TE11 LOCA NO PART NO DESCRIPTION D302 D303 D501 D701 D702 DL700 DL702 DL703 DL704 DL705 IC102 LD201 ZD101 ZD102 ZD103 ZD110 C104 C105 C106 C117 C118 C1203 C121 C1213 C1216 C1219 C122 C1221 C1222 C1226 C1242 C1243 C1244 C1255 C1258 C127 C133 C138 ...

Page 20: ...F MVG 16V 20 47UF MVG 16V 20 47UF MVG 16V 20 47UF MVG 16V 20 100UF MVG 16V 20 100UF MVG 16V 20 LOCA NO PART NO DESCRIPTION C266 C272 C274 C280 C295 C297 C298 C299 C301 C303 C304 C308 C309 C310 C310 C311 C312 C313 C315 C315 C316 C317 C322 C323 C325 C329 C330 C331 C332 C333 C334 C335 C336 C343 C348 C349 C350 C351 C352 C353 C357 C367 C369 C370 C379 C380 C383 C406 C408 C411 C412 0CE107SF6DC 0CE476SF6D...

Page 21: ... MVG 16V 20 47UF MVG 16V 20 LOCA NO PART NO DESCRIPTION C826 C901 C906 C908 C910 C912 C915 JK100 JK101 JK101 JK102 JK103 JK200 JK301 JK601 JK602 JK603 C10 C11 C12 C13 C14 C15 C4 C5 C6 C7 C8 C9 JK102 JK501 JK600 L201 L202 L203 L204 L221 L222 L223 L224 AR102 AR103 AR300 0CE106SF6DC 0CE107SF6DC 0CE477SF6DC 0CE106SF6DC 0CE476SF6DC 0CS335EFKDC 0CS335EFKDC 6612VJH020E 380 068E 380 363G 6612VJH020C 6613V...

Page 22: ...0 L211 L212 L213 L214 L215 L220 L229 L300 L301 L302 L303 L304 L305 L306 L310 L311 L312 L313 L400 L501 L503 L504 L600 L604 L605 L608 L609 L611 L612 6200C000009 6200C000012 6200C000012 6200C000012 6200C000012 6200VKR002A 6200VKR002A 6200VKR002A 6210VC0006A 6210VC0006A 6210VC0006A 6210VC0006A 6210VC0006A 6210VC0006A 6210VC0006A 6210VC0006A 6210VC0006A 6210VC0006A 6210VC0006A 6210VC0006A 6210VC0006A 6...

Page 23: ...R EMC FBMH3216 HM501NT FILTER EMC FBMH3216 HM501NT FILTER EMC FBMH3216 HM501NT FILTER EMC FBMH3216 HM501NT FILTER EMC FBMH3216 HM501NT FILTER EMC FBMH3216 HM501NT FILTER EMC FBMH3216 HM501NT FILTER EMC FBMH3216 HM501NT FILTER EMC FBMH3216 HM501NT FILTER EMC FBMH3216 HM501NT FILTER EMC MLB 201209 1000L N2 FILTER EMC MLB 201209 1000L N2 FILTER EMC MLB 201209 1000L N2 FILTER EMC MLB 201209 1000L N2 F...

Page 24: ...inted in Korea P NO 3828VD0177R CANADA LG Electronics Canada Inc 550 Matheson Boulevard East Mississauga Ontario L4Z 4G3 USA LG Electronics Alabama Inc P O Box 240007 201 James Record Road Bldg 3 Huntsville AL 35824 ...

Page 25: ......

Page 26: ......

Page 27: ......

Page 28: ...DIGITAL TOP DIGITAL BOTTOM ANALOG TOP ANALOG BOTTOM SIDE A V TOP SIDE A V BOTTOM CONTROL TOP CONTROL BOTTOM POWER S W TOP POWER S W BOTTOM ...