LG 42PX3RV, Service Manual

Page 1: ...VICE MANUAL CAUTION BEFORE SERVICING THE CHASSIS READ THE SAFETY PRECAUTIONS IN THIS MANUAL CHASSIS MF 056A MODEL 42PX3RV RVB 42PX3RV RVB ZA website http biz LGservice com e mail http www LGEservice com techsup html ...

Page 2: ...ONS 3 DESCRIPTION OF CONTROLS 4 SPECIFICATIONS 9 ADJUSTMENT INSTRUCTIONS 11 TROUBLE SHOOTING GUIDE 15 BLOCK DIAGRAM 24 EXPLODED VIEW 26 EXPLODED VIEW PARTS LIST 27 REPLACEMENT PARTS LIST 28 SCHEMATIC DIAGRAM PRINTED CIRCUIT BOARD ...

Page 3: ... 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 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 measur...

Page 4: ...e This function works only when Favourite programme is set to Off Otherwise each press of this but ton will select a stored favorite pro gramme SSM To select the sound appropriate to your viewing programme character NUMBER buttons SLEEP Sets the sleep timer I II Selects the language during dual lan guage broadcast Selects the sound output TEXT These buttons are used for teletext For further detail...

Page 5: ...n from standby or off to standby 4 TV AV Button Selects the TV AV Component RGB or HDMI modes Switches the set on from standby 5 MENU Displays on screen menus one by one Exits the current menu Memorizes menu changes 6 OK Accepts your selection or displays the current mode 7 D D E E Programme Up Down Selects a programme or a menu item Switches the set on from standby F F G G Volume Up Down Adjusts ...

Page 6: ...s a core or the EMI Filter core along with separate cable 2 CONTROL LOCK REMOTE CONTROL 3 RS 232C INPUT CONTROL SERVICE PORT Connect to the RS 232C port on a PC 4 COMPONENT INPUT Connect DVD video outputs to Y PB PR of COMPONENT INPUT and audio outputs to Audio sockets of AUDIO INPUT 5 VIDEO AUDIO IN OUT SOCKETS A V INPUT 1 Connect the video audio out sockets of external equipment to these sockets...

Page 7: ...70 08 85 03 59 94 66 66 72 80 75 00 85 00 60 00 70 00 75 00 60 00 70 00 75 00 56 25 60 31 72 18 75 00 85 06 74 55 60 00 70 06 75 02 85 00 60 05 70 01 75 00 75 06 60 02 60 02 31 468 37 861 31 469 37 927 31 469 35 000 37 861 37 500 43 269 31 500 37 799 39 375 31 500 37 799 39 375 35 156 37 879 48 077 46 875 53 674 49 725 48 363 56 476 60 023 68 677 54 348 63 995 67 500 68 681 60 023 63 981 ...

Page 8: ...bracket Video cables Audio cables Ceiling mounting bracket 40 42 50 42 40 Secure the TV assembly by joinning it to a wall by using the Eye Bolts Wall brackets Joinning the TV assembly to the wall to protect the set tumbling After the set must be mounted on a desktop install the Eye Bolts on the set as shown Insert the 2 Eye Bolts and tighten securely in the holes on the bracket Install the wall br...

Page 9: ...ation by part number in accordance with BOM 5 The receiver must be operated for about 20 minutes prior to the adjustment V Test Method 1 Performance LGE TV test method followed 2 Demanded other specification Safety CE IEC specification EMC CE IEC V General Specification 1 Module Specification Remark Safety IEC EN60065 EMI EN55013 EMS EN55020 Model Name 42PX3RV ZA Market EU Remark PDP LGE SPEC Make...

Page 10: ...Input 4EA Wired Control Audio variable out No 1 2 3 4 5 6 7 8 9 10 11 12 13 Specification EU PAL B G I D K NTSC BAND PAL NTSC VHF UHF C1 C69 2 83 CATV S1 S47 1 71 Upper Heterodyne PAL SECAM NTSC PAL SECAM NTSC PAL SECAM NTSC Y Cb Cr Y Pb Pr RGB PC RGB DTV HDMI PC HDMI DTV PC Audio Component 1EA AV 2EA Remark 4 System PAL SECAM NTSC PAL60 4 System PAL SECAM NTSC PAL60 4 System PAL SECAM NTSC PAL60 ...

Page 11: ... 3 Channel memory 3 1 Setting up the LGIDS 1 Install the LGIDS idsinst exe 2 After installation restart your PC 3 Extract files zip to folder c LGIDS files 4 Start LGIDS 3 2 Channel memory Method 1 Select ÒPDPÓ and ÒHurricaneÓ on Model dialog And check your connection in Communication dialog If your connection is ÔNGÕ then set your PORT COM1 2 3 correctly 2 Connect RS 232C cable and turn on the po...

Page 12: ... DDC Display Data Channel download 5 1 Required Test Equipment 1 Adjusting PC with S W for writing EDID Data S W EDID TESTER Ver 2 5 2 A Jig for EDID Download 3 Cable Serial 9Pin or USB to D sub 15Pin cable D sub 15Pin cable DVI to HDMI cable 5 2 Setting of device 5 3 Preparation for Adjustment 1 As above Fig 5 Connect the Set EDID Download Jig PC Cable 2 Turn on the PC EDID Download Jig And Execu...

Page 13: ...n remote control for adjustment then operate heat run more than 15 minutes 2 As below Fig 7 1 Supply 216Level 85 IRE full screen pattern to Video input 42PX4RV TA AV1 AV2 INPUT 50Hz 42PX4RV ZA AV4 AV5 INPUT 3 Press the TV AV KEY on R C for converting input mode 4 Set the PSM to Standard mode in Picture menu 5 Enter the White Balance adjustment mode by pressing the INSTART key twice White Balance o...

Page 14: ...andard 0 7Vpp horizontal black and white pattern as Fig 10 9 2 Method of Auto RGB Color Balance 1 Input the PC 1024x768 60Hz horizontal black and white pattern into RGB 2 Set the PSM to Standard mode in Picture menu 3 Press ADJ key on R C for adjustment 4 Press the G Vol key operate To set then it becomes automatically 5 Auto RGB OK means completed adjustment 9 Default Value in Adjustment mode 9 1...

Page 15: ... Doesn t the high tension output come out Doesn t the VSC signal Vs ON come out Yes Yes Does high tension output voltage drop occur When the Y B D Module Input Connector is removed does output voltage Drop occurs When the Y Z B D Module input connector is remove does Power B D hightension output voltage drop occur Yes No No 9 Check the Power Board Output high tension circuit Yes 10 Check the Z B D...

Page 16: ... 16 1 2 Sony Power Board Structure 1 2 3 T502 Vs Trans T702 Va Trans T101 St by Trans T103 Low Voltage Trans ...

Page 17: ... 17 1 3 Sanken Power Board Structure 1 2 3 T221 Vs Trans T271 Va Trans T121 St by Trans T201 Low Voltage Trans ...

Page 18: ...er and Power Board Cable connected Connect the Cable Yes No Is the Fuse F101 normal on Power Board Replace the Fuse Yes No Is the Power Board and 7P of VSC Board Cable connected Connect the Cable Yes No After the cable connect is removed to Power Board except the CN101 connection cable the AC voltage marking is authorized on manual When ST BY 5V is not operated replace Power Board ...

Page 19: ...e normal after remove P5 P6 connector of Y B D Is the Fuse FS2 on Y B D normal In case of open is replace Yes No Yes Yes Replace Z Board Is the Z Board normal Is normal the output voltage after remove P1 connector of Z B D Is normal the Fuse FS1 FS2 on Z B D In case of open is replace Yes No Yes Is the X Board normal Is the output voltage normal after remove P1 2 3 4 5 connector of X B D After rem...

Page 20: ... Is the Fuse FS2 on Y B D normal In case of open is replace Yes No Yes Yes Replace Z Board Is the Z Board normal Is normal the output voltage after remove P1 connector of Z B D Is the Fuse FS1 FS2 on Z B D normal In case of open is replace Yes No Yes Is the X Board normal Is the output voltage normal after remove P1 2 3 4 5 connector of X B D After remove P1 P2 P3 output voltage normality Replace ...

Page 21: ...e continuously becomes accomplished from module 2 Check following Is the LVDS cable normal Is the VSC Board normal Is the LVDS cable connected well Cable inserts well Yes No No Yes Does the FIL8532 IC IC800 Operates Replace FIL8532 IC IC800 No Is the Ctrl Board of Module normal Replace Ctrl B D No No Yes Replace VSC B D Replace the cable Yes ...

Page 22: ... the Tuner Cable connected well Cable inserts well Yes No No Yes Is the FIL8532 normal Replace the Tuner No Is normal the Input voltage IIC Communication and CVBS output Yes Is the Input voltage IIC Communication and HV sync normal No Replace the IC No Is the Input voltage IIC Communication and HV sync normal No Replace the IC No Is the CXA2069Q normal Yes Is the FIL8532 normal Is the Input voltag...

Page 23: ...ollowing Is the SPK cable normal Is the SPK cable connected well Cable inserts well No No Replace IC400 No Replace IC401 No Replace SPK cable Yes Yes Is the RF AV Component RGB HDMI sound normal No Does IC400 Operates Does IC401 Operates Replace IC402 No Does IC402 Operates Replace VSC B D Yes Yes ...

Page 24: ... 24 BLOCK DIAGRAM cable ...

Page 25: ...MEMO 25 ...

Page 26: ... 26 EXPLODED VIEW 300 301 304 302 202 206 203 204 201 205 580 410 530 121 601 600 120 501 401 400 303 207 200 520 430 ...

Page 27: ...980V01205B SUPPORTER ASSY AL FILTER RIGHT RZ 42PX30 C SKD 304 4980V01206B SUPPORTER ASSY AL FILTER LEFT RZ 42PX30 C SKD 400 3809V00605B BACK COVER ASSEMBLY 42PX17 30 CHASSIS CHANGE C SKD 3809V00605G BACK COVER ASSEMBLY 42PX3RVB CHASSIS CHANGE BK SPRAY 401 3301V00085A PLATE ASSEMBLY ASSY 3300V00552A RZ 42PX30 PLATE TUNER COVER 3301V00085E PLATE ASSEMBLY ASSY 3300V00552A 42PX3RVB PLATE TUNER COVER B...

Page 28: ...387500AA 0TR102008AA 0TR387500AA 0TR387500AA 0TR387500AA 0DD226239AA 0DD226239AA 0DD226239AA 0DD226239AA 0DD226239AA 0DD226239AA 0DD200009AF 0DD200009AF 0DD226239AA 0DD226239AA 0DD226239AA 0DD226239AA 0DD226239AA 0DD226239AA 0DD226239AA 0DD226239AA 0DD226239AA 0DD226239AA 0DD226239AA 0DD226239AA 0DD226239AA 0DD226239AA 0DD226239AA 0DD184009AA CHIP 2SC3875S ALY KEC CHIP 2SC3875S ALY KEC CHIP 2SA150...

Page 29: ...RIPTION C1115 C1116 C1117 C1118 C1119 C1120 C1126 C1135 C1136 C1137 C1138 C1148 C1149 C1150 C1151 C1154 C1159 C1162 C1165 C1166 C117 C118 C1185 C1186 C1187 C1188 C1189 C119 C1190 C1191 C1192 C1193 C1195 C1199 C120 C1200 C1201 C121 C1225 C1230 C1231 C1245 C1247 C129 C130 C1302 C1304 C1306 C1309 C131 C1311 C1312 0CE477DJ618 0CE477SF6DC 0CE227VF6DC 0CE477SF6DC 0CE477DJ618 0CE227VF6DC 0CE477SF6DC 0CE1...

Page 30: ...MD R TP 100UF MVG 16V 20 SMD R TP 1UF 2012 16V 20 R TP F Y5V 1UF 2012 16V 20 R TP F Y5V LOCA NO PART NO DESCRIPTION C457 C462 C463 C464 C465 C480 C481 C482 C483 C484 C495 C527 C610 C728 C729 C730 C731 C735 C737 C739 C745 C750 C752 C760 C762 C764 C767 C771 C832 C833 C834 C835 C836 C837 C838 C839 C840 C851 C853 C884 C896 C901 C904 C905 C930 C950 L1000 L1101 L1102 L1103 0CE335VK6DC 0CE107SF6DC 0CE106...

Page 31: ...L1111 L1112 L1113 L1115 L1116 L1117 L1118 L1119 L1120 L1121 L1122 L1123 L1125 L1126 L1127 L1128 L1129 L1130 L114 L115 L119 6200J000013 6200J000013 6200J000013 6200J000013 6200J000013 6200J000013 6200J000013 6200J000013 6200J000013 6200J000013 6200J000013 6200J000013 6200J000013 6200J000013 6200J000013 6200J000013 6200J000013 6200J000013 6200J000013 6200J000013 6200J000013 6200J000013 6200J000013 6...

Page 32: ...21611 0500P N2 MAG LAYERS MLB 321611 0500P N2 MAG LAYERS MLB 321611 0500P N2 MAG LAYERS MLB 321611 0500P N2 MAG LAYERS MLB 201209 1000L N2 MAG LAYERS MLB 321611 0500P N2 MAG LAYERS MLB 321611 0500P N2 MAG LAYERS MLB 321611 0500P N2 MAG LAYERS MLB 321611 0500P N2 MAG LAYERS MLB 321611 0500P N2 MAG LAYERS MLB 321611 0500P N2 MAG LAYERS MLB 321611 0500P N2 MAG LAYERS MLB 321611 0500P N2 MAG LAYERS ML...

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Page 36: ...PRINTED CIRCUIT BOARD MAIN TOP MAIN BOTTOM SIDE A V BOTTOM CONTROL ...

Page 37: ...Apr 2005 Printed in Korea P NO 3828VD0209Q ...