LG 42PX4RV/RVA, Service Manual

Page 1: ... CAUTION BEFORE SERVICING THE CHASSIS READ THE SAFETY PRECAUTIONS IN THIS MANUAL CHASSIS MF 056A MODEL 42PX4RV RVA 42PX4RV RVA ZA website http biz LGservice com e mail http www LGEservice com techsup html PR VOL MENU TV AV OK ...

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: ...he cur rent mode D D E E or F F G G Adjusts menu settings Selects menu item MENU Displays on screen menus one by one Exits the current menu Memorizes menu changes ZOOM ZOOM Enlarges or reduces the main picture size TEXT These buttons are used for teletext For further details see the Teletext section Note In teletext mode the PIP PR SWAP and PIP INPUT buttons are used for teletext function SSM To s...

Page 5: ... from standby 4 MENU Displays on screen menus one by one Exits the current menu Memorizes menu changes 5 OK Accepts your selection or displays the current mode 6 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 the volume Adjusts menu settings 7 Power Indicator Illuminates red in standby mode Illuminates green when the set...

Page 6: ...ect DVD video outputs to Y PB PR of COMPONENT INPUT and audio outputs to Audio sockets of AUDIO INPUT AUDIO VIDEO IN SOCKETS AV4 Connect the audio video out sockets of external equipment to these sockets S VIDEO AUDIO IN SOCKETS Connect the S VIDEO out socket of an VCR to the S VIDEO socket Connect the audio out sockets of the VCR to the audio sock ets as in AV4 5 VARIABLE AUDIO OUTPUT 6 EURO SCAR...

Page 7: ...1024 70 09 85 08 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...

Page 8: ...ing bracket Video cables Audio cables Ceiling mounting bracket 40 42 50 42 40 Secure the set assembly by joinning it to a wall by using the Eye Bolts Wall brackets Joinning the set 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 w...

Page 9: ...ordance 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 General Specification Remark Safety IEC60065 EMI CISPRI3 Safety IEC EN60065 EMI EN55013 EMS EN55020 Model Name 42PX4RV TA 42PX4RV ZA Market Non EU EU Rema...

Page 10: ...NTSC Y Cb Cr Y Pb Pr RGB PC RGB DTV HDMI PC HDMI DTV PC Audio Component 2EA AV 2EA Remark 4 System PAL SECAM NTSC PAL60 4 System PAL SECAM NTSC PAL60 4 System PAL SECAM NTSC PAL60 L R Input Item Market Broadcasting system Receiving system Scart Jack 3EA Video input 2EA S Video Input 2EA Component Input 2EA RGB Input 1EA HDMI Input 1EA Audio Input 5EA Wired Control No 1 2 3 4 5 6 7 8 9 10 11 Specif...

Page 11: ...he screen 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 PDP and Hurricane on Model dialog And check your connection in Communication dialog If your connection is NG then set your PORT COM1 2 3 correctly 2 Connect RS 232C cable and turn on the...

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: ...on 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 ...

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 occur When the Y Z B D Module input connector is remove does Power Board 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 LGIT 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 on Power Board normal 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 remved 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: ... 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 the output voltage normal 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 remo...

Page 20: ... Is the Fuse FS2 normal on Y B D 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 normal 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 remove P1 P2 P3 output voltage normality Replace ...

Page 21: ...ed 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: ...he Tuner Cable connected well Cable inserts well Yes No No Yes Is the FIL8532 normal Replace the Tuner No Is the Input voltage IIC Communication and CVBS output normal Yes Is the Input voltage IIC Communication and HV sync normal No Replace the IC No Is normal the Input voltage IIC Communication and HV sync No Replace the IC No Is the CXA2069Q normal Yes Is the FIL8532 normal Is the Input voltage ...

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 301 304 303 207 201 302 580 410 400 430 501 401 520 200 300 121 601 600 120 531 530 202 203 204 205 206 ...

Page 27: ...0 EGI C SKD 302 3110V00444C CASE BOTTOM RT 42PX40 EGI C SKD 303 3110V00442C CASE MODULE SIDE RT 42PX40 EGI RIGHT C SKD 304 3110V00443C CASE MODULE SIDE RT 42PX40 EGI LEFT C SKD 400 3809V00513L BACK COVER ASSEMBLY 42PX4RV ZA SKD FOR LGEMA NO HANDLE 401 3301V00049B PLATE ASSEMBLY ASSY 3300V00440A RZ 42PX40 MF056A 410 4980V00C84B SUPPORTER ASSY AL 42PX40X C SKD 430 3501V00207B BOARD ASSEMBLY ASSY AP ...

Page 28: ...A 0TR387500AA 0TR387500AA 0TR387500AA 0TR387500AA 0TR102008AA 0TR102008AA 0TR387500AA 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 0D...

Page 29: ...TION C1107 C1108 C1110 C1115 C1116 C1117 C1118 C1119 C1120 C1126 C1135 C1136 C1137 C1138 C1148 C1149 C1150 C1151 C1154 C1159 C1162 C1165 C1166 C117 C117 C118 C1185 C1186 C1187 C1188 C1189 C119 C1190 C1191 C1192 C1193 C1195 C1199 C120 C1200 C1201 C121 C1225 C1230 C1231 C1245 C1247 C129 C129 C130 C130 C1302 0CE107SF6DC 0CE107SF6DC 0CE477SF6DC 0CE477DJ618 0CE477SF6DC 0CE227VF6DC 0CE477SF6DC 0CE477DJ6...

Page 30: ... SMD R TP 1UF MVG 50V 20 SMD R TP 1UF MVG 50V 20 SMD R TP LOCA NO PART NO DESCRIPTION C402 C403 C413 C418 C422 C425 C437 C444 C451 C456 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 0CE476SF6DC 0CE226SF6DC 0CE335VK6DC 0CE107SF6DC 0CE106...

Page 31: ... L1022 L1023 L1024 L1025 L110 L1105 L1106 L1107 L1108 L1109 L111 L1110 L1111 L1112 L1113 L1114 L1115 L1116 L1117 L1118 L1119 L1120 L1121 140 315A 140 315A 140 315A 140 315A 140 315A 6600VR1004A 6600VR1004A 6200J000013 6200J000013 6200J000013 6200J000013 6200J000013 6200J000013 6200J000013 6200J000013 6200J000013 6200J000013 6200J000013 6200J000013 6200J000013 6200J000013 6200J000013 6200J000013 62...

Page 32: ...1 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 201209 1000L 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 20...

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

Page 37: ...Apr 2005 Printed in Korea P NO 3828VD0209C ...