LG 42PC1DV Series Service Manual Download Page 2

Page: 2 / 51

- 2 -

CONTENTS

SAFETY PRECAUTIONS ....................................................................................3

DESCRIPTION OF CONTROLS ..........................................................................4

SPECIFICATIONS ..............................................................................................10

ADJUSTMENT INSTRUCTIONS .......................................................................12

TROUBLE SHOOTING GUIDE ..........................................................................17

PRINTED CIRCUIT DIAGRAM ..........................................................................23

BLOCK DIAGRAM .............................................................................................27

EXPLODED VIEW ..............................................................................................30

EXPLODED VIEW PARTS LIST ........................................................................31

REPLACEMENT PARTS LIST...........................................................................32

SCHEMATIC DIAGRAM.........................................................................................

Summary of Contents for 42PC1DV Series

Page 1: ...V SERVICE MANUAL CAUTION BEFORE SERVICING THE CHASSIS READ THE SAFETY PRECAUTIONS IN THIS MANUAL CHASSIS PB61A MODEL 42PC1DV 42PC1DV AA website http biz LGservice com e mail http www LGEservice com techsup html ...

Page 2: ... 3 DESCRIPTION OF CONTROLS 4 SPECIFICATIONS 10 ADJUSTMENT INSTRUCTIONS 12 TROUBLE SHOOTING GUIDE 17 PRINTED CIRCUIT DIAGRAM 23 BLOCK DIAGRAM 27 EXPLODED VIEW 30 EXPLODED VIEW PARTS LIST 31 REPLACEMENT PARTS LIST 32 SCHEMATIC DIAGRAM ...

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: ...at Adjusts brightness on screen It returns to the default settings brightness by changing mode source Control some video cassette recorders or DVD players RECORD button is not available for DVD player Accepts your selection or displays the current mode Adjusts menu settings Selects menu item Increase decrease the sound level Returns to the previously viewed programme Switches the sound on or off S...

Page 5: ...D VCR PIP GUIDE INFO COLOURE Button EXIT LIST MENU I II SLEEP TELETEXT BUTTONS Selects the remote operating mode TV VCR DVD Select other operating modes for the remote to operate external devices Switches to PIP POP and Twin picture modes or off mode Shows a programme schedule Shows the present screen information They are used as per the indications or functions displayed on the TV screen in the c...

Page 6: ...r POWER Button INPUT Button MENU Button OK Button VOLUME F F G G Buttons PROGRAMME E E D D Buttons Power Standby Indicator Illuminates red in standby mode When the TV is turned on the indicator blinks white and then illumi nates white before the picture is displayed ...

Page 7: ...nput Connects the video signal from a video device AV OUT Connect a second TV or monitor AV Audio Video IN 1 Connect audio video output from an externa device to these jacks S VIDEO Connect S Video out from an S VIDEO device COMPONENT IN Connect a component video audio device to these jacks HDMI DVI IN Connect a HDMI signal Or DVI VIDEO signal to the this port with a HDMI to DVI cable DIGITAL AUDI...

Page 8: ...EVEAL PIP PR PIPINPUT SWAP PIP PR Q VIEW MUTE PR SLEEP LIST I II MENU TEXT PIP GUIDE INFO VCR POWER 1 2 3 4 5 6 7 8 9 0 FAV APM Remote Control Power Cord For 42PC1D 42PC1DG 42PC1DV 50PC1D 2 Wall brackets 2 Bolts 42PC1DG 42PC1DV only 42PC1DG 50PC1D only Polishing Cloth Polish the screen with the cloth 2 eye bolts ...

Page 9: ...outward O Place the set with the screen facing down on a cushion or soft cloth as shown in Figures 1 Before unfolding the stand please make sure two locks A on the bottom of the stand push outward O Pull the stand out as shown above in Figures 2 3 After unfolding the stand please insert and tighten the screws in the holes B on the bottom of the stand O When connecting cables to the set Do not dise...

Page 10: ... specification Safety CB specification EMC CISPR 13 specification V General Specification 1 Module Specification 10 Display area Outline dimension Number of Pixels Cell pitch Color arrangement Weight net Weight gross Operation Environment Temperature Humidity Pressure Storage Environmnet Temperature Humidity Pressure I mage stick minimization Start time mode Low Brightness Arrival Time 920 1 H 518...

Page 11: ...ature Operating Humidity Storage Temperature Storage Humidity PAL B G DTV DVB T 1 VHF 00 12 2 UHF 20 75 3 CATV 02 44 4 DTV 06 12 27 69 1 PAL 38 90MHz Picture 34 40MHz Sound 2 DVB T 36 125MHz 240V 50Hz PDP42V8 16 9 wide 0 40 deg 85 20 60 deg 85 1 2 3 4 5 6 7 8 9 10 No Item Remark Maker LGE RGB Closed Type Specification Min Typ Max Unit ...

Page 12: ... End after confirming 5 MST3362M Set Adjustment 5 1 Synopsis MST3362M Set adjustment to set the black level and the Gain of optimum with an automatic movement from the analog digital converter 5 2 Test Equipment Service R C 801GF 802B 802F 802R MSPG 925 Pattern Generator 480i 1080i 60Hz Color Bar Pattern output will be possible and the output level will accurately have to be revised with 0 7 0 1Vp...

Page 13: ...he adjustment is over uPD64015 NTSC Main Adjustment OK and uPD64015 NTSC Sub Adjustment OK is displayed If the adjustment has errors uPD64015 NTSC Main Error or uPD64015 NTSC Main Error is displayed 4 Readjust after confirming the case Pattern or adjustment condition where the adjustment had errors 5 After adjustment is complete exit the adjustment mode by pressing the ADJ KEY 7 POWER PCB Assy Vol...

Page 14: ...4 Act or set the EDID S W 1 As above Fig 6 Connect the Set EDID Download Jig PC Cable 2 Turn on the PC EDID Download Jig And Execute the S W EDID TESTER Ver 2 5 3 Set up S W option Repeat Number 3 Device Address A0 PageByte 8 8 5 How to use the EDID S W 1 Init the data 2 Load the EDID data Open File 42PC1DV_AA_HDMI 0145 DVI 42PC1DV_AA_RGB 31 ana 3 Press the Write Data Verify button and input the d...

Page 15: ... Adjustment of White Balance Passivity Adjustment 1 HEAT RUN at least 30 minutes by pressing the 7 White Pattern on the Service Remote Control and adjust 2 After attaching sensor to center of screen select 7 White Balance of Ez Adjust by pressing the ADJ KEY on the Service R C Then enter adjustment mode by pressing the Right KEY G This time white pattern is displayed 3 Adjust the High Light using ...

Page 16: ... 7 8 9 10 Digital 30 Off 16 9 1 Dynamic Cool Off Auto Standard Off 0 On On Off Off Off 16 9 Off Normal Off C0 C5 C6 S11 C20 C35 C52 C68 C43 Item Condition No Remark Input Mode Volume Level Mute Aspect Ratio SET ID Picture PSM Color Temp Advanced Cinema Black level Sound SSM AVL Balance TV Speaker Time Auto Clock Manual Clock Off Timer On Timer Sleep Timer Auto Off Option Sub title Child Lock ARC D...

Page 17: ...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 18: ... 18 1 2 42 Power Board Structure T801 Vs Trans T901 Va Trans T112 Low Voltage Trans T501 ST BY Trans T601 PFC Inductor ...

Page 19: ...hed continuously 2 Check follow 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 Thine IC IC900 Operates Replace Thine IC900 No Is the Ctrl Board of Module normal Replace Ctrl B D No No Replace Scaler IC401 No Does the Scaler IC401 Operates Replace VSC Digital B D Replace the cable Yes Yes Yes ...

Page 20: ...ormal Is the Splitter normal Is the Flat Cables normal Replace Flat Cables Is the Tuner Cable connected well Cable inserts well Yes No No Yes Is the CXA2069Q IC100 normal Replace the Tuner No Is the Input voltage IIC Communication and CVBS output normal No Is normal the Input voltage IIC Communication and HV sync No Replace the IC No Yes Is the uPD64015 normal Is normal the Input voltage IIC Commu...

Page 21: ...ormal the Input voltage IIC Communication and HV sync Is the EDID correct Yes Is the latest version the Graphic card driver of the PC Update the Graphic card driver with the latest version No No Is normal the Input voltage IIC Communication and HV sync Yes Is the Scaler normal No Replace the IC Cable connected well No Is the Tuner Cable connected well No Is normal the Input voltage IIC Communicati...

Page 22: ...the IC200 Replace SPK cable Yes Yes Yes Is the RF Analog AV Component L R sound normal Is the CS5330A IC1000 MC33078 IC1001 Scaler IC401 normal No No Is the MSP4450K IC200 normal Replace the IC400 Yes Is the NSP2100 IC400 normal Replace the IC402 Yes Is the TAS5122 IC402 normal Replace the IC400 Yes Yes No No No No Is the Scaler IC401 normal Replace VSC Digital B D Yes Yes Replace the IC No Is the...

Page 23: ... 23 PRINTED CIRCUIT BOARD MAIN TOP ...

Page 24: ... 24 MAIN BOTTOM ...

Page 25: ... 25 TUNER TOP TUNER BOTTOM ...

Page 26: ... 26 CONTROL PRE AMP SIDE A V ...

Page 27: ... 27 BLOCK DIAGRAM ...

Page 28: ... 28 ...

Page 29: ... 30 EXPLODED VIEW 600 602 601 121 120 570 203 204 206 200 580 205 201 202 400 240 250 430 530 501 301 304 303 302 560 502 520 300 ...

Page 30: ... COMPLEX ASSY AL FILTER BOTTOM 42PC1R TA 303 4980900115A Supporter COMPLEX ASSY AL FILTER RIGHT 42PC1R TA 304 4980900116A Supporter COMPLEX ASSY AL FILTER LEFT 42PC1 TA 400 3809900103B Cover Assembly 42PC1D NON DIGITAL 430 3501900014A Base Assembly D T SPK STAND AP 42DC11 MF056A FOLDING STAND 501 3301900095H Plate Assembly AV 42PC I DTV 502 3301900092A Plate Assembly ASSY DIGITAL COVER ASSY PB61A ...

Page 31: ... 0TR387500AA 0TR387500AA 0TR387500AA 0TR387500AA 0TR387500AA 0TR387500AA AZ1117H 3 3 4 75TO10V 3 3V SOT223 CAT24WC08W T MST3000 8KBIT MST3362M LF 110 MSTAR 128P AZ1117H 2 5TR E1 15V 2 5V UPD64015AGM UEU A LF 3 0V AZ1117H 1 5TRE1 3TO10V 1 5V M12L16161A 5TG 16MBIT 16BIT AZ1117H 3 3 4 75TO10V 3 3V LA7217M 4 5VTO5 5V 16 1KHZ 150MW UPD64015AGM UEU A LF 3 0VTO3 6V M12L16161A 5TG 16MBIT 16BIT 3 3V AZ1117...

Page 32: ...V 50V 2SA1504S ASY PNP 5V 50V 50V KTC3198 KTC1815 NPN 5V 60V 50V KTC3198 KTC1815 NPN 5V 60V 50V 2SC3875S ALY NPN 5V 60V 50V 150MA LOCA NO PART NO DESCRIPTION D100 D101 D101 D1101 D1102 D1200 D1201 D1202 D121 D122 D123 D124 D125 D1305 D151 D152 D154 D202 D221 D251 D252 D261 D262 D271 D300 D301 D501 D502 D503 D504 D505 D506 D600 D601 D601 D602 D602 D603 D604 D605 D606 D607 D611 D700 D703 D704 D801 D...

Page 33: ...C1024 C1025 C103 C103 C103 C103 C104 C104 C104 C104 C105 C105 C105 C105 C106 C106 C107 C107 C108 C108 C109 C109 C110 C110 C1100 C1101 C1103 C1104 C1108 C1109 C111 C111 C111 C1111 C1112 C1113 C1114 C1115 C1116 C1117 C1118 C1119 C112 C112 C112 0CK472CK56A 0CC101CK41A 0CK104CK56A 0CE106WFKDC 0CK103CK56A 0CK104CK56A 0CK104CK56A 0CK103CK56A 0CK104CK56A 0CE4763F618 0CC101CK41A 0CK104CK56A 0CKZTBU004E 0C...

Page 34: ...G LOCA NO PART NO DESCRIPTION C1211 C1212 C1213 C1214 C1215 C1216 C1217 C1218 C1219 C122 C122 C122 C1220 C1221 C1222 C1223 C1224 C1225 C1226 C1227 C1228 C1229 C123 C123 C123 C1230 C1231 C1232 C1233 C1234 C1235 C1236 C1237 C1238 C1239 C124 C124 C124 C1240 C1241 C1242 C1243 C1244 C1245 C1247 C1248 C125 C125 C126 C126 C127 C127 0CE106WFKDC 0CE106WFKDC 0CE106WFKDC 0CE106WFKDC 0CE106WFKDC 0CK104CK56A 0...

Page 35: ...C100M 100uF 20 16V LOCA NO PART NO DESCRIPTION C1513 C1514 C1515 C1516 C1517 C1518 C1519 C152 C1520 C1521 C1524 C1526 C1527 C153 C1535 C1536 C1539 C1540 C1541 C1543 C155 C156 C157 C200 C200 C201 C201 C201 C202 C202 C202 C203 C203 C203 C204 C204 C204 C205 C205 C205 C206 C206 C207 C207 C208 C209 C210 C210 C210 C211 C211 C212 0CK104CK56A 0CE226WF6DC 0CK104CK56A 0CK104CK56A 0CE226WJ6DC 0CE226WJ6DC 0CE...

Page 36: ...O PART NO DESCRIPTION C271 C272 C275 C276 C281 C282 C283 C285 C300 C300 C301 C301 C301 C302 C303 C303 C304 C304 C305 C306 C306 C307 C307 C308 C308 C309 C310 C311 C311 C312 C312 C314 C315 C315 C316 C317 C318 C320 C321 C321 C324 C325 C325 C326 C327 C327 C328 C329 C329 C330 C330 C331 0CZZTAB003D 0CZZTAB003D 0CZZTAB003M 181 091R 0CZZTAB003D 0CZZTAB003D 0CZZTAB003D 0CZZTAB003P 0CE476WF6DC 0CK104CK56A 0...

Page 37: ...35V 40MA LOCA NO PART NO DESCRIPTION C404 C405 C405 C406 C406 C407 C407 C408 C408 C409 C409 C410 C410 C411 C411 C411 C412 C412 C413 C413 C414 C414 C415 C415 C416 C416 C417 C417 C418 C418 C419 C419 C420 C420 C421 C421 C422 C423 C423 C424 C424 C425 C426 C426 C427 C428 C429 C430 C430 C431 C432 C433 0CE476WF6DC 0CC102CK41A 0CK104CK56A 0CC101CK41A 0CK104CK56A 0CE476WF6DC 0CE476WH6DC 0CK104CK56A 0CK105C...

Page 38: ...0nF 20 50V X7R LOCA NO PART NO DESCRIPTION C464 C464 C465 C465 C466 C466 C467 C467 C468 C469 C469 C470 C471 C472 C472 C473 C473 C474 C475 C476 C477 C478 C479 C480 C481 C482 C483 C484 C485 C486 C487 C489 C490 C491 C492 C500 C500 C501 C501 C502 C502 C502 C503 C503 C504 C504 C504 C505 C505 C506 C506 C506 0CK103CK56A 0CK474EK66A 0CK103CK56A 0CK474EK66A 0CK104CK56A 0CK474EK66A 0CE226WJ6DC 0CK103CK56A 0...

Page 39: ...RT NO DESCRIPTION C533 C534 C538 C539 C540 C541 C542 C543 C544 C545 C546 C547 C600 C600 C601 C601 C601 C602 C602 C602 C603 C603 C603 C604 C604 C605 C605 C606 C606 C606 C607 C607 C607 C608 C608 C608 C609 C610 C611 C613 C613 C614 C614 C615 C616 C617 C618 C620 C621 C622 C623 C623 0CK104CK56A 0CE226WF6DC 0CK104CK56A 0CK103CK56A 0CK104CK56A 0CE106WFKDC 0CK104CK56A 0CK104CK56A 0CK103CK56A 0CK104CK56A 0C...

Page 40: ...uF 20 16V 16MA LOCA NO PART NO DESCRIPTION C707 C708 C710 C711 C712 C713 C714 C715 C716 C717 C718 C719 C720 C721 C721 C722 C723 C724 C725 C726 C726 C727 C727 C728 C729 C730 C730 C731 C732 C733 C734 C735 C736 C737 C738 C739 C740 C741 C742 C743 C744 C745 C746 C747 C748 C749 C750 C751 C752 C753 C754 C755 0CK103CK56A 0CK103CK56A 0CK104CK56A 0CK104CK56A 0CK104CK56A 0CK104CK56A 0CK104CK56A 0CK104CK56A 0...

Page 41: ...0V X7R LOCA NO PART NO DESCRIPTION C812 C813 C814 C815 C816 C817 C818 C819 C820 C821 C822 C823 C824 C825 C826 C827 C828 C829 C830 C831 C832 C833 C834 C835 C836 C837 C838 C839 C840 C841 C842 C843 C844 C845 C846 C847 C848 C849 C850 C851 C851 C852 C853 C854 C854 C855 C855 C856 C856 C857 C858 C859 0CK104CK56A 0CK104CK56A 0CK104CK56A 0CK104CK56A 0CK104CK56A 0CK104CK56A 0CK104CK56A 0CK104CK56A 0CK104CK5...

Page 42: ...952 C953 C954 C957 C958 L1301 L1302 L1303 L1304 L201 L221 L271 L303 L304 L305 L316 L404 L405 L406 L407 L408 L409 L410 L411 L601 LF102 LF103 L1000 L1001 L1002 L1003 L101 L1105 L1111 L200 L201 L202 L500 L501 L709 C1 C2 C3 C4 C5 C6 0CK104CK56A 0CE827RR640 0CE827RR640 0CK105DH56A 181 288C 181 091R 181 091R 6140VB0004B 6140VB0004B 6140VB0004B 6140VB0004B 61409B0013A 61409B0011A 61409B0013A 6140VB0004B ...

Page 43: ...A86TRJ100R 100OHM 5 1 16W RCA86TRJ22R0 22OHM 5 1 16W RCA86TRJ51R0 51OHM 5 1 16W LOCA NO PART NO DESCRIPTION AR824 AR824 AR844 AR845 AR846 AR903 AR904 AR911 AR912 AR929 AR930 AR934 R101 R151 R152 R158 R159 R160 R175 R176 R213 R228 R229 R241 R260 R262 R263 R278 R285 R5003 R501 R502 R503 R504 R505 R507 R510 R601 R602 R604 R605 R606 R607 R628 R629 R630 R631 R632 R633 R634 R704 R737 0RJ0222C687 0RJ0512...

Page 44: ...0 L1112 L1113 L1114 L1115 L1116 L1117 L1118 L1119 L1200 L1201 L1202 L1203 L1204 L1300 L1307 L1501 L1502 L1503 L1504 L1505 L200 L201 L300 L300 L301 L301 L303 L305 L308 L309 L310 L312 L313 L315 L316 6210TCE002B 6210TCE002B 6200J000115 6210VH0001A 6210VH0004A 6210VH0004A 6210VH0004A 6210VH0004B 0LCML00003B 0LCML00003B 0LCML00003B 0LCML00003B 6200J000013 0LCML00003B 0LCML00003B 0LCML00003B 0LCML00003B...

Page 45: ...201209 0120P N2 120OHM MLB 201209 0120P N2 120OHM MLB 201209 0120P N2 120OHM MLB 201209 0120P N2 120OHM LOCA NO PART NO DESCRIPTION L909 LF101 R1599 R2309 R2310 R2311 R2312 R2313 R2314 R2315 R2316 R2501 X100 X1200 X1500 X200 X500 X501 X600 X700 X701 X701 X800 J100 J600 JK101 JK601 JK602 JK603 JK604 CN900 CW1 GP1 GP2 GP3 GP4 GP5 GP6 GP7 GP8 P1 P1 P100 P100 P101 P101 P103 P1300 0LCML00003B 6200J0001...

Page 46: ...50MM Conector Wafer SMW250 13P 13P 2 50MM Conector Wafer SMW250 10P 0 40MM Conector Wafer SMW250 12P 12P 2 50MM Conector Wafer YW396 08V 8P 3 96MM Conector Wafer YW396 09V 9P 3 96MM Conector Wafer YW396 03AV 2P 3 96MM Cable FFC 31Px50xP7x1 0x 0 1x0 65 Cable Assembly PLUG R A TO S T UL Cable Assembly GT121 HOUSING GT121 Fuse Time Delay 215008 CERAMIC 250V Fuse Holder AFC 520 BAE EUN TAPING Fuse Hol...

Page 47: ......

Page 48: ......

Page 49: ......

Page 50: ......

Page 51: ...Apr 2006 Printed in Korea P NO 38289S0039B ...

Search results

Summary of Contents for 42PC1DV Series

Reviews:

Related manuals for 42PC1DV Series

Brands by name

Popular brands

LG 42PC1DV Series, Service Manual

Search results

Summary of Contents for 42PC1DV Series

Reviews:

Related manuals for 42PC1DV Series

Brands by name

Popular brands