LG RT-42PX11 Service Manual Download Page 38

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LOCA. NO PART NO DESCRIPTION

C114

C120

C1202

C1205

C1206

C121

C1211

C1212

C1215

C1216

C1218

C1220

C1229

C1233

C124

C1249

C1250

C1251

C1254

C1256

C1257

C1259

C127

C1273

C1274

C1275

C1279

C1305

C1314

C1315

C1317

C1331

C1333

C1353

C1355

C1362

C1366

C1368

C1373

C1374

C1384

C1388

C1391

C1400

C1402

C1404

C1410

C1415

C1425

C208

C209

0CE475SK6DC

0CE476SF6DC

0CE107SF6DC

0CE477SF6DC

0CE476SF6DC

0CE477SF6DC

0CE227VF6DC

0CE477SF6DC

0CE227VF6DC

0CE477SF6DC

0CE107SF6DC

0CE227VF6DC

0CE477SF6DC

0CE227VF6DC

0CE475SK6DC

0CE476SF6DC

0CE107SF6DC

0CE476SF6DC

0CE107SF6DC

0CE477SF6DC

0CE107SF6DC

0CE227VF6DC

0CE107SF6DC

0CE476SF6DC

0CE477SF6DC

0CE476SF6DC

0CE477SF6DC

0CE107SF6DC

0CE106SF6DC

0CE477SF6DC

4.7UF MVG 50V 20% SMD R/TP

47UF MVG 16V M SMD R/TP

100UF MVG 16V M SMD R/TP

470UF MVG 16V 20% R/TP(SMD) SMD

47UF MVG 16V M SMD R/TP

470UF MVG 16V 20% R/TP(SMD) SMD

220UF MV 16V 20% R/TP(SMD) SMD

470UF MVG 16V 20% R/TP(SMD) SMD

220UF MV 16V 20% R/TP(SMD) SMD

470UF MVG 16V 20% R/TP(SMD) SMD

100UF MVG 16V M SMD R/TP

220UF MV 16V 20% R/TP(SMD) SMD

470UF MVG 16V 20% R/TP(SMD) SMD

220UF MV 16V 20% R/TP(SMD) SMD

4.7UF MVG 50V 20% SMD R/TP

47UF MVG 16V M SMD R/TP

100UF MVG 16V M SMD R/TP

47UF MVG 16V M SMD R/TP

100UF MVG 16V M SMD R/TP

470UF MVG 16V 20% R/TP(SMD) SMD

100UF MVG 16V M SMD R/TP

220UF MV 16V 20% R/TP(SMD) SMD

100UF MVG 16V M SMD R/TP

47UF MVG 16V M SMD R/TP

470UF MVG 16V 20% R/TP(SMD) SMD

47UF MVG 16V M SMD R/TP

470UF MVG 16V 20% R/TP(SMD) SMD

100UF MVG 16V M SMD R/TP

10UF MVG 16V 20% R/TP(SMD) SMD

470UF MVG 16V 20% R/TP(SMD) SMD

LOCA. NO PART NO DESCRIPTION

C210

C222

C223

C224

C230

C251

C254

C258

C261

C263

C272

C274

C276

C288

C289

C300

C301

C303

C315

C316

C317

C322

C324

C334

C335

C400

C401

C402

C404

C406

C410

C423

C429

C435

C440

C442

C502

C505

C506

C507

C508

C509

C517

C520

C522

C523

C525

C527

C529

C534

C601

C605

0CE106SF6DC

0CE476XFKDC

0CE107SF6DC

0CE106SF6DC

0CN105EJ56A

0CE476SF6DC

0CE107SF6DC

0CE106SF6DC

0CN105EJ56A

0CE476SF6DC

0CE227VF6DC

0CE476SF6DC

0CE107SF6DC

0CE227VF6DC

0CE476SF6DC

0CE107SF6DC

0CE105SK6DC

0CE107SF6DC

0CE106SF6DC

0CE105SK6DC

0CE106SF6DC

0CE476SF6DC

0CE106SF6DC

0CE107SF6DC

0CE476SF6DC

10UF MVG 16V 20% R/TP(SMD) SMD

47UF MVK-BP,CN 16V 20%,-20% SMD TAPPING

100UF MVG 16V M SMD R/TP

10UF MVG 16V 20% R/TP(SMD) SMD

1.0UF 3216 35V 10% R/TP X7R

47UF MVG 16V M SMD R/TP

100UF MVG 16V M SMD R/TP

10UF MVG 16V 20% R/TP(SMD) SMD

1.0UF 3216 35V 10% R/TP X7R

47UF MVG 16V M SMD R/TP

220UF MV 16V 20% R/TP(SMD) SMD

47UF MVG 16V M SMD R/TP

100UF MVG 16V M SMD R/TP

220UF MV 16V 20% R/TP(SMD) SMD

47UF MVG 16V M SMD R/TP

100UF MVG 16V M SMD R/TP

1UF MVG 50V M SMD R/TP

100UF MVG 16V M SMD R/TP

10UF MVG 16V 20% R/TP(SMD) SMD

1UF MVG 50V M SMD R/TP

10UF MVG 16V 20% R/TP(SMD) SMD

47UF MVG 16V M SMD R/TP

10UF MVG 16V 20% R/TP(SMD) SMD

100UF MVG 16V M SMD R/TP

47UF MVG 16V M SMD R/TP

For Capacitor & Resistors,
the charactors at 2nd and 3rd
digit in the P/No. means as
follows;

CC, CX, CK, CN : Ceramic
CQ : Polyestor
CE : Electrolytic

RD : Carbon Film
RS : Metal Oxide Film
RN : Metal Film
RF : Fusible

Summary of Contents for RT-42PX11

Page 1: ...A TV SERVICE MANUAL CAUTION BEFORE SERVICING THE CHASSIS READ THE SAFETY PRECAUTIONS IN THIS MANUAL CHASSIS RF 043B MODEL RT 42PX11 website http biz LGservice com e mail http www LGEservice com techsup html ...

Page 2: ...NS 3 DESCRIPTION OF CONTROLS 4 SPECIFICATIONS 13 ADJUSTMENT INSTRUCTIONS 15 TROUBLE SHOOTING GUIDE 20 BLOCK DIAGRAM 31 EXPLODED VIEW 34 EXPLODED VIEW PARTS LIST 35 REPLACEMENT PARTS LIST 36 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: ...ays on screen menus one by one Exits the current menu Memorizes menu changes SWAP Returns to the previously viewed programme Note This function works only when Favorite programme is set to Off Otherwise each press of this button 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...

Page 5: ...ts the TV AV Component RGB or DVI modes If OSD is dis played selects menu item MENU Displays on screen menus one by one Exits the current menu Memorizes menu changes 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 Power Standby Indicator Illuminates red in standby mode Illuminates green wh...

Page 6: ...o this socket 4 COMPONENT INPUT Connect DVD video outputs to Y PB PR of COMPONENT INPUT and audio outputs to Audio sockets of AUDIO INPUT 5 AUDIO VIDEO IN SOCKETS AV1 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 A...

Page 7: ...n for a long period of time Typically a frozen still pic ture from a VCR Refer to p 25 If a 4 3 picture format is used the fixed image may remain visible on the screen To avoid picture noise interference leave an adequate distance between the VCR and set Watching TV programmes Turn the set on and select the programme you want Watching VCR 1 Use the TV AV button on the remote control to select AV1 ...

Page 8: ... input jacks on the set with the output jacks on the audio video equipment Video yellow Audio Left white Audio Right red How to use 1 Use the TV AV button on the remote control to select AV1 or AV2 2 Operate the corresponding external equipment See external equipment operating guide S VIDEO AUDIO VIDEO MONITOR OUTPUT A V INPUT1 AUDIO R L An VIDEO INPUT 2 COMPONENT INPUT 1 COMPONENT AUDIO INPUT RGB...

Page 9: ... INPUT R L MOND R R R R Back panel of the set DVD player Watching DTV option To watch digitally broadcast programs purchase and connect a digital set top box How to connect 1 Use the monitor s COMPONENT Y PB PR INPUT RGB or DVI jack for video connections depending on your set top box con nector Then make the corresponding audio connections How to use 1 Turn on the digital set top box Refer to the ...

Page 10: ...the signal cable from the DVI out put port of the PC to the DVI INPUT port on the set Connect the audio cable from the PC to the Audio input on the set Audio cables are not included with the set If using a sound card adjust PC sound as required This set apply a VESA Plug and Play Solution The set provides EDID data to the PC system with a DDC protocol The PC adjusts automatically to use this set D...

Page 11: ...53 674 49 725 48 363 56 476 60 023 68 677 47 700 59 625 47 700 59 625 54 348 63 995 67 500 77 487 68 681 47 693 60 091 68 504 60 023 63 981 RGB DVI mode RT 42PX10 11 12X 20 series RT 50PX10 20 series Resolution 640x350 720x400 640x480 848x480 800x600 Horizontal Frequency KHz Vertical Frequency Hz 852x480 832x624 1024x768 1360x768 1366x768 1152x864 1152x870 1280x960 1280x1024 70 09 85 08 70 08 85 0...

Page 12: ...ting bracket 40 42 50 40 42 50 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 TV Wall brackets Joinning the TV assembly to the wall to protect the set tumbling After the set must be mounted on s desk top install the TV brackets on the TV as shown Insert the 2 bolts and tighten securely in the upper holes on the bracket...

Page 13: ...justment V Test and Inspection 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 IEC EN60065 EMI EN55013 EMS EN55020 Safety IEC60065 EMI CISPR13 Model Name RT 42PX10 RZ 42PX10 Market EU Non EU Chassis RF 043B Brand LG LG Model Name RZ 42PX10 RT 42PX10 Market Place EU N...

Page 14: ...L B G I D K SECAM L NTSC4 43 PAL60 DVI D L R Input 14 No 8 9 10 11 12 13 14 15 16 17 18 Remark 4 System PAL B G I D K SECAM L NTSC4 43 PAL60 4 System PAL B G I D K SECAM L NTSC4 43 PAL60 4 System PAL B G I D K SECAM L NTSC4 43 PAL60 DVI D L R Input Specification Non EU PAL B G I D K NTSC Upper Heterodyne PAL SECAM NTSC PAL SECAM NTSC PAL SECAM NTSC Y Cb Cr Y Pb Pr RGB PC RGB DTV for Australian DVI...

Page 15: ...LGIDS 1 Install the LGIDS idsinst exe After installation is completed check if the file shown on Fig 1 has been created After using the right mouse button to click on LGIDS 2 select Create Shortcut from the menu with the left mouse button and move the shortcut icon onto the desktop 3 Double click on the LGIDS icon on the desktop to execute the program 3 2 Channel memory Method 1 Check if Malibu ha...

Page 16: ...Y Generation 1 Click on Key Generation G 2 Input the number of the key in Generation count ex If 100 Keys are required then just register 100 and next time it will automatically get 101 3 Input file When installing the program for the first time you must find the original KEY that you copied and open it It is crucial that you copy the original KEY into this directory When you use Generation the in...

Page 17: ...Diagram for Measuring Refer to Fig 11 5 3 Adjustment Method for P No 3501V00180A B D 1 Va Adjustment 1 After receiving 100 Full White Pattern HEAT RUN 2 Connect terminal of D M M to Va pin of P805 connect terminal to GND pin of P805 3 After turning RV501 voltage of D M M adjustment as same as Va voltage which on lable of panel right top Deviation 0 5V 2 Vs Adjustment 1 Connect terminal of D M M to...

Page 18: ... W for writing DDC EDID data Write Read into operation operated in DOS mode 6 4 Sequence of Adjustment 1 DDC Data Input for Analog RGB 1 Put the set on the table and turn the power on 2 Connect PC Serial to D sub 15P Cable of jig for DDC adjustment to RGB terminal D Sub 15Pin 3 Operate S W for DDC record and select DDC data for Analog RGB in Model Menu 4 Operate EDID Write command 5 Operate EDID R...

Page 19: ...ce 8 1 Required Test Equipment Pattern Equipment MSP3240A or same product 16 Gray Scale Pattern output Component output Level 0 7Vp p 8 2 Method of Auto RGB Color Balance 1 Input RGB Source Component 480p 576p 16 Gray Scale Pattern At this time except Pb and Pr signal only Y signal insert 2 Press ADJ KEY on R C for adjustment 3 Press Vol KEY and operate To set 4 Auto RGB OK means completed adjustm...

Page 20: ...signal Doesn t the high tension output come out Doesn t the VSC signal Vs ON come out Yes Yes High tension output voltage Drop it occurs When remove the Y B D Module Input Connector output voltage Drop it occurs When remove the Y Z B D Module Input Connector Power Board high tension output voltage Drop it occurs Yes No No 9 Check the Power Board Output high tension circuit Yes 10 Check the Z B D M...

Page 21: ... 21 1 2 Sony Power Board Structure T502 Vs Trans T702 Va Trans T101 St by Trans T103 Low Voltage Trans 1 2 3 ...

Page 22: ... 22 1 3 Sanken Power Board Structure T221 Vs Trans T271 Va Trans T121 St by Trans T201 Low Voltage Trans 1 2 3 ...

Page 23: ...ect the Power Switch and Power Board Cable Connect Cable Yes No Is normal the Fuse F101 on Power Board Replace Fuse Yes No Is connect the Power Board and 7P of VSC Board Cable Connect Cable Yes No Is connect the Power Switch and Power Board Cable After remove the cable connect to Power Board except the CN101 connection cable authorizes the AC voltage marking on manual When ST BY 5V does not operat...

Page 24: ...nnector of Y B D Is normal the Fuse F52 on Y B D In case of open is replace Yes No Yes Yes Replace Z Board Is normal the Z Board 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 normal the X Board Is normal the output voltage after remove P1 2 3 4 6 7 connector of X B D After remove P1 P2 P3 P4 output volta...

Page 25: ...Y B D In case of open is replace Yes No Yes Yes Replace Z Board Is normal the Z Board 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 normal the X Board Is normal the output voltage after remove P1 2 3 4 6 7 connector of X B D After remove P1 P2 P3 P4 output voltage normality Replace Right X B D After remo...

Page 26: ...m module 2 Check follow Is normal the LVDS cable Is normal the VSC Digital Board Is the LVDS cable connected well Cable inserts well Yes No No Yes Operates the Thine IC IC1100 Replace Thine IC IC1100 No Is normal the Ctrl Board of Module Replace Ctrl B D No No Operates the IEP IC500 Replace IEP IC500 Yes No Operates the Scaler IC700 Replace Scaler IC700 Yes Replace cable Yes ...

Page 27: ...n the case of becomes unusual display from RF AV mode Is normal the Tuner Is normal the CXA2069Q Is the Tuner Cable connected well Cable inserts well Yes No No Yes Is normal the VPC3230 Replace Tuner No Is normal the Input voltage IIC Communication and CVBS output Yes Is normal the Input voltage IIC Communication and HV sync No Replace IC No Is normal the Input voltage IIC Communication and HV syn...

Page 28: ...ync No Replace IC No Yes Is normal the Scaler Is normal the Input voltage IIC Communication and HV sync No Replace IC No Is normal the 74LS123 Yes Is normal the CXA2101 Is normal the Input voltage IIC Communication and HV sync No Replace IC No Is normal the Input voltage IIC Communication and HV sync No Replace IC No Yes Is normal the M52758 Is normal the Input voltage IIC Communication and HV syn...

Page 29: ...No Replace IC No Is normal the Input voltage IIC Communication and HV sync No Replace IC No Is normal the M52758 Yes Is normal the Scaler Is normal the Input voltage IIC Communication and HV sync No Replace IC No Is normal the Scaler Is normal the Input voltage IIC Communication and HV sync No Replace IC No Is normal the Input voltage IIC Communication and HV sync No Replace IC No Yes Is normal th...

Page 30: ...ble connected well Cable inserts well No No Cable inserts well No Replace IC800 No Replace IC801 No Replace SPK cable Yes Yes Is normal the RGB DVI sound Is the Flat cable connected well No No Operates the IC800 Yes Operates the IC801 Replace IC802 No Operates the IC802 Replace VSC Analog B D Yes Yes Yes Is normal the RF AV Component sound ...

Page 31: ...Cb Cr 8 HY57V64322 SDRAM 8MB RGB PC DTV RGB PC RGB DTV g m 1601 Sc aler Malib u Comp DTV CXA_RGB RGB_Dat a Main_Vid eo 24 Sub _Vid eo 8 DVI_Dat a TX_Out RS232_RX TX Co mp RGB_SW Fro m Malib u Dig it al Analo g Sid e AV CVBS S VHS Vin5 YCin5 Co mp _Y Co mp _480I P To Malib u Vid eo f o r Text Text TX0 1 2 3 C Disp _En SDATA SCLK SLE HY5DU283222A SDRAM 128MB AM29LV F ROM 1MB Co mp RGB_SW Co mp _480I...

Page 32: ...FP I2C Exp end er M62320FP I2C Exp end er CXA2069Q UPD64083 UPD64083 VPC3230 MAIN VPC3230 MAIN VPC3230 SUB VPC3230 SUB DVD_SUB DTV_Co mp M52758FP IC400 MUX M52758FP IC400 MUX DVD_MAIN DVD2_MAIN DVD2_SUB DTV2_Co mp S VHS Tuner M Tuner S VIN1 Y CIN1 Co mp Co mp 2 MNT_OUT VIN2 Y CIN2 MAIN_VOUT SUB_COUT SUB_YOUT CAB_VIN MAIN_YOUT MAIN_COUT LA7151M SW CVBS Y COMB_YOUT COMB_COUT ALT_Y_480I_MAIN ALT_Y_48...

Page 33: ...MEMO 33 ...

Page 34: ... 34 EXPLODED VIEW 300 301 304 302 212 216 213 214 211 215 580 400 401 410 402 520 560 530 531 570 121 601 600 120 217 200 303 305 430 ...

Page 35: ...2X 7T 303 4980V01069D SUPPORTER ASSY AL FILTER RIGHT DN 42PX12X 7T 304 4980V01070D SUPPORTER ASSY AL FILTER LEFT DN 42PX12X 7T 305 3790V00709B FILTER MECH MN42PZ41 LGM42 01 MITSUI 42 ETCHING MESH GLASS FILTER 400 3809V00444C BACK COVER ASSEMBLY RZ 42PX12X XGA 401 3301V00025D PLATE ASSEMBLY ASSY COVER VSC TUNER RU 42PX10 PRESS 402 3301V00023D PLATE ASSEMBLY ASSY AV VSC TUNER RU 42PX10 410 4980V0107...

Page 36: ...00AA 0TR387500AA 0TR387500AA 0TR387500AA 0TR387500AA 0TR387500AA 0TR387500AA 0TR387500AA 0TR387500AA 0TR387500AA 0TR387500AA 0TR387500AA 0TR387500AA 0TR387500AA 0TR387500AA 0TR387500AA 0TR387500AA 0TR387500AA 0TR387500AA 0TR387500AA CHIP 2SC3875S ALY KEC CHIP 2SC3875S ALY KEC CHIP 2SA1504S ASY KEC BSS83 TP PHILIPS N CHANNEL S W TR KTC3552T RTK KEC R TP SOT 23F 50V 3A BSS83 TP PHILIPS N CHANNEL S W...

Page 37: ...C1037 C104 C1042 C1045 C105 C1058 C1059 C1060 C1063 C1066 C1067 C107 C1072 C1074 C1077 C1079 C108 C1082 C111 C112 C113 0DD226239AA 0DD226239AA 0DD226239AA 0DD226239AA 0DD226239AA 0DD226239AA 0DR050008AA 0DR050008AA 0DR050008AA 0DR050008AA 0DR050008AA 0DR050008AA 0DR050008AA 0DR050008AA 0DZ820009AH 0CE4763F618 0CE107SF6DC 0CE227VF6DC 0CE475SK6DC 0CE477SF6DC 0CE107SF6DC 0CE107SF6DC 0CE107SF6DC 0CE47...

Page 38: ...TP SMD SMD 470UF MVG 16V 20 R TP SMD SMD LOCA NO PART NO DESCRIPTION C210 C222 C223 C224 C230 C251 C254 C258 C261 C263 C272 C274 C276 C288 C289 C300 C301 C303 C315 C316 C317 C322 C324 C334 C335 C400 C401 C402 C404 C406 C410 C423 C429 C435 C440 C442 C502 C505 C506 C507 C508 C509 C517 C520 C522 C523 C525 C527 C529 C534 C601 C605 0CE106SF6DC 0CE476XFKDC 0CE476XFKDC 0CE476XFKDC 0CE107SF6DC 0CE106SF6DC...

Page 39: ...03 AR507 AR508 AR509 AR512 AR513 AR600 AR600 AR601 AR601 AR602 AR602 AR603 AR603 AR604 AR605 AR606 AR607 AR608 AR609 AR610 AR611 AR612 AR613 AR614 AR615 AR616 AR617 AR618 AR700 AR701 AR701 AR707 AR708 AR709 AR710 AR711 AR712 6140VB0004B 6140VB0004B 6140VB0004B 6140VB0004B 6140VB0004B 6140VB0004B 6140VB0004B 6140VB0024A 6140VB0024A 6140VB0024A 6140VB0024A 0RRZVTA001D 0RRZVTA001D 0RRZVTA001D 0RRZVTA...

Page 40: ...0 L1331 L1332 L1333 L200 L201 L202 L203 L204 L204 L205 L205 L206 L206 L207 L207 L208 L208 L209 L210 6210VC0006A 6210VC0006A 6210VC0006A 6210VC0006A 6210VC0006A 6200JB8010L 6200JB8010L 6210VC0006A 6210VC0006A 6210VC0006A 6210VC0006A 6210VC0006A 6210VC0006A 6210VC0006A 6210VC0006A 6210VC0006A 6210VC0006A 6210VC0006A 6210VC0006A 6210VC0006A 6210VC0006A 6210VC0006A 6210VC0006A 6210VC0006A 6210VC0006A ...

Page 41: ...3 2X1 6X1 6MM R TP FBMH3216 HM501NT 3 2X1 6X1 6MM R TP FBMH3216 HM501NT 3 2X1 6X1 6MM R TP FBMH3216 HM501NT 3 2X1 6X1 6MM R TP FBMH3216 HM501NT 3 2X1 6X1 6MM R TP FBMH3216 HM501NT 3 2X1 6X1 6MM R TP FBMH3216 HM501NT 3 2X1 6X1 6MM R TP FBMH3216 HM501NT 3 2X1 6X1 6MM R TP FBMH3216 HM501NT 3 2X1 6X1 6MM R TP FBMH3216 HM501NT 3 2X1 6X1 6MM R TP FBMH3216 HM501NT 3 2X1 6X1 6MM R TP MLB 201209 1000L N2 R...

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Page 47: ...PRINTED CIRCUIT BOARD MAIN TOP POWER S W TOP POWER S W BOTTOM MAIN BOTTOM TUNER TOP TUNER BOTTOM SIDE A V TOP SIDE A V BOTTOM CONTROL TOP CONTROL BOTTOM ...

Page 48: ...Sep 2004 Printed in Korea P NO 3828VD0161Z ...

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