LG RT-42PY10X Service Manual Download

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PLASMA TV

SERVICE MANUAL

CAUTION

BEFORE SERVICING THE CHASSIS,
READ THE SAFETY PRECAUTIONS IN THIS MANUAL.

CHASSIS : RF-043B

MODEL : RT-42PY10X

website:http://biz.LGservice.com

e-mail:http://www.LGEservice.com/techsup.html

Summary of Contents for RT-42PY10X

Page 1: ...A TV SERVICE MANUAL CAUTION BEFORE SERVICING THE CHASSIS READ THE SAFETY PRECAUTIONS IN THIS MANUAL CHASSIS RF 043B MODEL RT 42PY10X website http biz LGservice com e mail http www LGEservice com techsup html ...

Page 2: ...NS 3 DESCRIPTION OF CONTROLS 4 SPECIFICATIONS 14 ADJUSTMENT INSTRUCTIONS 16 TROUBLE SHOOTING GUIDE 21 BLOCK DIAGRAM 32 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: ...to D D E E or F F G G direction OK accepts your selection or displays the current mode D D E E or F F G G Adjusts menu settings Selects menu item POWER Switches the set on from standby or off to standby ARC Changes the picture format MUTE Switches the sound on or off Q VIEW Returns to the previously viewed programme SSM To select the sound appropriate to your viewing programme character VOL Volume...

Page 5: ...V 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 when the s...

Page 6: ... core or the EMI Fillter core along with separete cable 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 socket...

Page 7: ...g a fixed image remain on the screen 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 o...

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: ...T UT RGB 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...

Page 10: ...or the signal cable from the DVI output 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...

Page 11: ...6 66 72 80 75 00 85 00 60 00 70 00 75 00 60 00 70 00 75 00 56 25 RGB 60 31 72 18 75 00 85 06 74 55 60 00 70 06 75 02 85 00 60 00 75 02 85 00 60 00 75 02 85 00 60 05 70 01 75 00 85 00 75 06 60 00 75 00 85 00 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 47 700...

Page 12: ...ts Desktop stand optional Ceiling mounting bracket Wall mounting bracket Only RT 60PY10 11 series Tilt wall mounting bracket Only RT 60PY10 11 series Tilt wall mounting bracket 40 42 50 40 42 50 Ceiling mounting bracket 40 42 50 42 40 2 TV brackets 2 Wall brackets optional 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 ...

Page 13: ...or further information refer to the optional Wall Mounting Bracket Installation and Setup Guide Speakers are optional and are shown for illustration only 3cm 10cm 10cm 10cm 10cm To Mount on a Wall Wall mount minimum allowable clearances for ade quate ventilation To Install on a Desktop Pedestal mount minimum allowable clearances for adequate ventilation 1 Put the RING SPACER in the holes of the bo...

Page 14: ... receiver must be operated for about 20 minutes prior to the adjustment 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 42 XGA MODULE Remark PDP Maker NBK Mitsui LG Chemical LGE SPEC Maker SONY Murata Specification 42 inch wide Color Display Module 16 9 PDP42...

Page 15: ... DK 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 PC PC Audio Component 1EA AV 1EA Discrete IR No 8 9 10 11 12 13 14 15 16 17 18 Item Market Broadcasting system Receiving system Video Input 2EA Video Output 1EA S Video Input 2EA Component Input 2EA RGB Input DVI Input Audio Input 2EA Wired Control ...

Page 16: ...DS 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 has b...

Page 17: ...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 18: ...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 19: ... 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 20: ...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 21: ...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 22: ... 22 1 2 Sony Power Board Structure T502 Vs Trans T702 Va Trans T101 St by Trans T103 Low Voltage Trans 1 2 3 ...

Page 23: ... 23 1 3 Sanken Power Board Structure T221 Vs Trans T271 Va Trans T121 St by Trans T201 Low Voltage Trans 1 2 3 ...

Page 24: ...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 25: ...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 26: ...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 27: ...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 28: ...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 29: ...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 30: ...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 31: ...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 32: ...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 33: ...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 34: ... 34 EXPLODED VIEW 307 308 315 309 310 311 313 312 314 570 121 120 200 303 304 305 306 302 410 400 301 551 550 102 101 580 204 207 201 206 590 540 520 501 530 560 541 401 430 205 202 203 600 ...

Page 35: ...R FRAME AL DN 42PY10 LEFT 309 4811V00109A BRACKET ASSEMBLY SPEAKER DN 42PY10 AF045A LEFT 310 3210V00252A FRAME FRONT AL DN 42PY10 LEFT 311 3790V00744B WINDOW DECO RZ 42PY10X ACRYL LEFT 312 3210V00251A FRAME FRONT AL DN 42PY10 RIGHT 313 3790V00743B WINDOW DECO RZ 42PY10X ACRYL RIGHT 314 4811V00108A BRACKET ASSEMBLY SPEAKER DN 42PY10 AF045A RIGHT 315 4972V00111A FIXER FRAME AL DN 42PY10 RIGHT 400 38...

Page 36: ...830009BA 0TR387500AA 0TR387500AA 0TR387500AA 0TR387500AA 0TR387500AA 0TR387500AA 0TR830009BA 0TR830009BA 0TR387500AA 0TR387500AA 0TR150400BA 0TR387500AA 0TR104009AF 0TR387500AA 0TR150400BA 0TR104009AF GM1501HBD GENESIS 416P PBGA AT24C32AN 10SI 2 7 ATMEL 8PIN SOP TP 32K 3 3V KIA7042AF SOT 89 TP 4 2V VOLTAGE MSP4410G QA C13 101WITH SRS HY5DU283222AQ 5 HYNIX 100P LQFP NSP 6241B NEOFIDELITY 64P TQFP M...

Page 37: ...206 D121 D122 D123 D124 D125 D126 D127 D128 D129 D130 D1300 D1301 D1302 D1303 D1304 D1305 D1306 D131 D1501 D1503 D400 D500 D5001 D501 D502 D503 IC103 IC104 LD1000 LD1001 LD1002 LD1003 LD1203 LD1204 LD1206 LD1207 ZD100 ZD101 ZD102 ZD103 ZD104 ZD105 ZD400 0DD184009AA 0DD226239AA 0DD226239AA 0DD226239AA 0DD226239AA 0DD226239AA 0DD226239AA 0DD226239AA 0DD226239AA 0DD226239AA 0DD226239AA 0DD226239AA 0D...

Page 38: ...1250 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 C210 C222 C223 C224 C230 C251 C254 C258 C261 C263 C272 C274 C276 0CE227VF6DC 0CE477SF6DC 0CE107SF6DC 0CE227VF6DC 0CE227VF6DC 0CE477SF6DC 0CE227VF6DC 0CE227VF6DC 0CE227VF6DC 0CE227VF6DC 0CE475SK6...

Page 39: ...SMD 10UF MVG 16V 20 R TP SMD SMD LOCA NO PART NO DESCRIPTION C523 C525 C527 C529 C534 C601 C605 C607 C608 C611 C612 C614 C626 C627 C632 C634 C637 C651 C702 C703 C710 C713 C720 C723 C727 C737 C744 C752 C757 C762 C769 C777 C778 C785 C800 C801 C802 C803 C812 C822 C825 C827 C828 C829 C834 C837 C840 C841 C847 C851 C852 C862 0CE106SF6DC 0CE105SK6DC 0CE106SF6DC 0CE476SF6DC 0CE106SF6DC 0CE107SF6DC 0CE476S...

Page 40: ...5 R TP 4P E24 SERIES LOCA NO PART NO DESCRIPTION AR701 AR707 AR708 AR709 AR710 AR711 AR712 AR713 AR714 AR715 AR717 AR718 AR719 R5026 R801 R802 SW201 SW202 SW203 SW204 SW205 SW206 SW700 SW800 L100 L100 L1000 L1002 L1008 L1009 L101 L101 L1010 L1011 L1012 L1013 L1014 L1015 L1016 L1017 L1018 L1019 L102 L102 L102 L103 L103 L103 0RRZVTA001D 0RRZVTA001D 0RRZVTA001D 0RRZVTA001D 0RRZVTA001D 0RRZVTA001D 0RR...

Page 41: ...2125 HS 750 2X1 25X0 85MM R TP FBMH3216 HM501NT 3 2X1 6X1 6MM R TP BK2125 HS 750 2X1 25X0 85MM R TP LOCA NO PART NO DESCRIPTION L207 L208 L208 L209 L210 L211 L212 L213 L214 L214 L215 L215 L216 L216 L217 L300 L301 L302 L303 L304 L305 L400 L400 L401 L401 L402 L403 L404 L405 L406 L407 L408 L500 L5001 L501 L502 L503 L504 L505 L506 L507 L609 L700 L800 L807 L808 R102 R103 R106 R107 R108 X500 6210VC0006A...

Page 42: ...0PF BK UJB 03 28A 6613V00004S SHIEL SCREW HOLE PPJ122B A V 6P SHIELD GOLD PPJ122C A V 6P COMPONENT SHIELD GOLD PPJ121B A V 4P SHIELD GOLD UEJ CV 018 UGCOM D3 5 E P JACK W SHIELD 440062 1 AMP DVI INTERACED RIGHT ANGLE 6046B 01S PARKELEC H 8 0 WITH S W SHIELD UEJ CV 018 UGCOM D3 5 E P JACK W SHIELD MANUAL OWNERS RU EN 116W TX 026H 7YRS REMOTE CONTROLLER AF045A RZ 50PY10 POWER CORD M2511A 001 2800MM ...

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Page 47: ...INDEX ...

Page 48: ...PRINTED CIRCUIT BOARD MAIN TOP POWER S W TOP SIDE A V TOP SIDE A V BOTTOM CONTROL TOP CONTROL BOTTOM POWER S W BOTTOM MAIN BOTTOM CONTROL TOP INDEX TOP INDEX BOTTOM CONTROL BOTTOM TUNER TOP TUNER BOTTOM ...

Page 49: ...July 2004 Printed in Korea P NO 3828VD0161M ...

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