LG RU-44SZ80L - - 44" Rear Projection TV, Service Manual

Page 1: ...V SERVICE MANUAL CAUTION BEFORE SERVICING THE CHASSIS READ THE SAFETY PRECAUTIONS IN THIS MANUAL CHASSIS MB 042B MODEL RU 44SZ80L CANADA http biz lgservice com USA http www lgservice com http lgservice com techsup html ...

Page 2: ...ngs Place the AC switch in the on positioin 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 measured resistance should be between 1MΩ and 5 2MΩ When the exposed metal has no return path to the chassis the...

Page 3: ...CATIONS 4 DESCRIPTION OF CONTROLS 5 ADJUSTMENT INSTRUCTION 12 PRINTED CIRCUIT BOARDS 15 BLOCK DIAGRAM 26 EXPLODED VIEW 28 EXPLODED VIEW PARTS LIST 29 REPLACEMENT PARTS LIST 30 SCHEMATIC DIAGRAM TABLE OF CONTENTS ...

Page 4: ... Consumption W 220W Antenna 75 ohm External Terminal for VHF UHF Audio Output W 12W x 2 Supplied Accessories Remote control 2 size AA batteries 2 filters External Input Output Ports A V input 3 set A V output 1 set S Video input 2 Component input 2 set RGB input 1 DVI input 1 RGB DVI audio input 1 set Variable audio output 1 set Audio center mode input 1 Calibration port 1 Design and specification...

Page 5: ...ection lamp is reaching the end of its life and needs to be replaced with a new lamp Contact your service center Red flashing There is a problem with the lamp or around it Contact an authorized service center Green flashing The lamp cover is not closed Orange The projection TV is overheating Check the blocked vents of the projection TV and the accumulated dust in the dust filter Red The projection...

Page 6: ... your surround sound system RF Connector Antenna Used to connect analog cable or antenna signals to the television either directly or through your cable box Video 1 or 2 Connects the video sig nals from various types of equipment Component Input 1 2 Connect a component video audio device to these jacks Refer to your DVD manual for further information Connecting cables and external equipment to you...

Page 7: ...t Right Audio Used for stereo sound from various types of equipment Video Connects the video sig nals from any piece of equipment S Video A connection available on some very high end equip ment that provides better picture quality than video input If you input both Side Video and S Video only the S Video will work If you re connecting a video game device make sure to change the picture settings wi...

Page 8: ...und on or off THUMBSTICK Allows you to navigate the on screen menus and to adjust the system settings and preferences by moving to an option withF G and selecting the highlighted option with TV VIDEO Selects Analog Video1 Video2 Side video Component1 2 RGB and DVI input sources MODE Selects the remote operating mode TV VCR Cable DVD and Satellite Select other oper ating modes for the remote to con...

Page 9: ...m and other on screen dis plays selects highlighted options RECORD PAUSE REW FFWD PLAY STOP Control the functions on your VCR VOLUME UP DOWN Increases decreases the sound level RATIO Changes the screen format or aspect ratio SKIP Playing CDs Selects songs Playing DVDs Selects movie chapters COMPONENT 1 2 Selects component signal sources such as DVD or HD receiver ENTER When in the menu system and ...

Page 10: ...annel Display Displays current channel number Channel Label If a channel label has been set then it will appear here PIP Display This display appears when PIP is active Volume Volume level is displayed while adjusting the sound Mute Appears when sound is muted Time Appears when pressing the enter button ABC DESCRIPTION OF CONTROLS ...

Page 11: ... indicator Temperature indicator 1 2 3 4 5 6 7 8 See menu pages for instructions on using the on screen menus The POWER MENU ENTER VOLUME and CHANNEL buttons work just as they do on your remote control If TV is moved from cold to normal room tem perature condensation may form inside TV wait 3 hours the TV to adjust to room tempera ture before turning it on DESCRIPTION OF CONTROLS ...

Page 12: ...t menu 4 NRS Adjustment When the LCD panel load data on regular pixel using high speed charge discharge with sample holder the drain width of TFT gradually decreases and the non resistance increases and comes out regular noise on screen shows vertical line by 12 pixel This NRS signal is enforced charge discharge signal so that the ON OFF time of TFT mode quickly before starting active video signal...

Page 13: ...16 Step RGB Data to select white balance x 283 y 297 D9300K 4 Measure the luminance with changed data 5 Set the every Gamma data of 16 step to 2 2 on the basis of measured luminance data in 3 Max luminance n1 16 2 2 Max luminance measured luminance data n1 every step unit when separating signal level to 16 step 6 Output the 240 240 240 15th data in max white output signal level in the VDP Test Pat...

Page 14: ...ol for adjustment 2 Select the Contrast s of adjustment item using CH key and revises using VOL key Only make adjustments 2 at one time 9 Check and adjustment RGB Alignment 9 1 Required Test Equipment Remote control for adjustment 9 2 Preparation for Adjustment 1 Connect power source with TV Set and turn TV Set on 2 Before adjusting Heat Run more than 15 minutes 9 3 Check and adjustment RGB Alignm...

Page 15: ... 15 PRINTED CIRCUIT BOARD MAIN TOP ...

Page 16: ... 16 PRINTED CIRCUIT BOARD MAIN BOTTOM ...

Page 17: ... 17 PRINTED CIRCUIT BOARD TUNER TOP ...

Page 18: ... 18 PRINTED CIRCUIT BOARD TUNER BOTTOM ...

Page 19: ... 19 PRINTED CIRCUIT BOARD DRIVER TOP ...

Page 20: ... 20 PRINTED CIRCUIT BOARD DRIVER BOTTOM ...

Page 21: ... 21 PRINTED CIRCUIT BOARD DIGITAL TOP ...

Page 22: ... 22 PRINTED CIRCUIT BOARD DIGITAL BOTTOM ...

Page 23: ... 23 PRINTED CIRCUIT BOARD SMPS AC INPUT ...

Page 24: ... 24 PRINTED CIRCUIT BOARD SIDE A V CRM TOP CRM BOTTOM ...

Page 25: ... 25 CASE DET PRE AMP INTERFACE CONTROL TOP CONTROL BOTTOM PRINTED CIRCUIT BOARD ...

Page 26: ... 26 BLOCK DIAGRAM ...

Page 27: ... 27 NOTES ...

Page 28: ... 28 EXPLODED VIEW 304 303 305 121 300 520 560 540 501 550 503 301 310 302 650 330 120 630 700 410 400 430 401 402 681 680 670 601 174 620 610 611 640 530 720 612 572 571 570 600 580 581 ...

Page 29: ...SZ80L MI 540 6871VSME68A PCB ASSEMBLY SUB TUNER MB042A RU 44SZ80L 550 6871VSMX04C PCB ASSEMBLY SUB DIGITAL MB042A READY II XDRPRO 560 6871VSME84A PCB ASSEMBLY SUB CRM MB042E RU 44SZ80L 570 6871VSML01B PCB ASSEMBLY SUB MB042A DIRVER 80H 571 4814V00444A SHIELD CASE DN 44SZ80L NON EGI EMI CASE 0 7W LCD 572 4814V00459A SHIELD ASSY DN 44SZ80L NB042A NON COVER DIRIVER BOARD 580 5900V11001F FAN DC B1232S...

Page 30: ...IC100 IC1000 IC1001 IC1001 IC1002 IC1003 IC1005 IC1007 IC1008 IC101 IC1010 IC1011 IC1012 IC1013 IC1014 IC1019 IC102 IC102 IC1020 IC1021 IC1022 IC1023 IC1024 IC103 IC104 IC105 IC106 IC107 IC1106 IC1200 IC1201 IC2 IC200 IC3 IC300 IC301 IC302 IC304 IC305 IC306 IC307 IC4 IC404 IC405 0ICTMMI057A 0IPH741400E 0IPMGON013B 0IMI623200B 0IMI623200B 0ICTMMI057A 0IKE704200J 0IAL242561B 0IMCRTH003A 0IPRPSH001A ...

Page 31: ...TC1627A KEC KSC945CY TO92 50V 150MA KTA1024Y KTA949 TP KEC KTC3227Y TP KTC1627A KEC LED LTL30EWJ LOCA NO PART NO DESCRIPTION D1 D100 D100 D102 D103 D104 D105 D106 D2 D201 D3 D3 D300 D4 D5 D6 D700 D701 D702 D703 D704 D706 D707 D708 D709 D710 D711 D712 D801 D831 D832 D834 D835 D840 D851 D861 D881 D891 Q801 ZD01 ZD1 ZD10 ZD2 ZD201 ZD202 ZD203 ZD204 ZD3 ZD4 ZD5 ZD6 0DD184009AA 0DRSE00038A 0DRDI00148A ...

Page 32: ...6V 20 0 01UF 1608 50V 10 LOCA NO PART NO DESCRIPTION C1058 C1059 C1060 C1061 C1062 C1063 C1064 C1065 C1066 C1067 C1068 C1069 C1070 C1071 C1072 C1073 C1074 C1075 C1076 C1077 C1078 C1081 C1082 C1083 C1084 C109 C110 C1101 C1101 C111 C112 C1121 C1122 C1123 C1124 C1125 C1126 C1126 C1127 C1128 C1129 C113 C1130 C1131 C1132 C1133 C1134 C1135 C1136 C1137 C1138 0CK103CK56A 0CK103CK56A 0CK103CK56A 0CK103CK56...

Page 33: ...50V 10 0 01UF 1608 50V 10 0 01UF 1608 50V 10 0 01UF 1608 50V 10 22UF MVG 25V 20 0 01UF 1608 50V 10 LOCA NO PART NO DESCRIPTION C1191 C1192 C1193 C1194 C1195 C1196 C1197 C1198 C1199 C120 C1200 C1200 C1201 C1201 C1202 C1202 C1203 C1203 C1204 C1204 C1205 C1206 C1206 C1207 C1207 C1208 C1208 C1209 C1209 C121 C1210 C1211 C1213 C1214 C1217 C1220 C1221 C1223 C1224 C1225 C1226 C1227 C1228 C1229 C123 C1230 ...

Page 34: ...2012 16V 20 220000PF 2012 16V 10 1UF 2012 16V 20 220000PF 2012 16V 10 220000PF 2012 16V 10 10UF MVG 16V 20 LOCA NO PART NO DESCRIPTION C223 C224 C225 C226 C227 C229 C23 C231 C237 C238 C24 C249 C260 C261 C262 C27 C335 C338 C339 C344 C345 C358 C359 C363 C381 C394 C395 C405 C5 C508 C510 C53 C550 C565 C571 C606 C616 C621 C622 C628 C630 C631 C643 C648 C664 C668 C669 C670 C671 C673 C7 0CE475DK618 0CE476...

Page 35: ...R 0 047UF D 50V 80 20 MPE ECQV1H474JL3 TR 50V 0 47UF J 100P 50V K B TS 470PF 50V K B TR 100P 50V K B TS 1000P 50V K B TS LOCA NO PART NO DESCRIPTION C820 C822 C824 C825 C827 C829 C831 C832 C832 C833 C834 C835 C836 C837 C840 C841 C842 C843 C844 C851 C852 C853 C857 C861 C862 C863 C866 C867 C868 C870 C874 C881 C882 C883 C891 C892 C893 C898 C899 C915 C923 JA1201 JA1202A JA200 JA201 JA201 P1001 L1 181 ...

Page 36: ...08 5 00 47 OHM 1 16 W 1608 5 00 47 OHM 1 16 W 1608 5 00 47 OHM 1 16 W 1608 5 00 LOCA NO PART NO DESCRIPTION AR1025 AR1026 AR503 AR504 AR506 AR516 AR518 AR519 AR522 AR523 AR526 AR529 AR530 AR531 AR744 AR746 AR748 AR750 AR846 AR847 AR848 AT1002 AT1003 AT1004 AT1005 AT1006 AT1007 AT1008 AT1009 AT1010 AT1011 AT1012 AT1013 AT1014 AT1016 AT1017 AT1018 AT1019 AT1020 AT1021 AT1022 AT1101 R1 R1286 R2 R253 ...

Page 37: ...6 W 5 00 LOCA NO PART NO DESCRIPTION R875 R876 R877 R877 R891 R892 R893 R894 R894 R895 R896 R897 R898 R899 SW01 SW1 SW2 SW3 SW4 SW5 SW6 SW7 FB801 FB851 FB861 FB882 FB891 FL100 FL101 FL104 FL106 FL107 FL108 FL109 FL112 FL113 FL117 FL118 FL121 FL122 FL123 FL124 FL125 FL127 FL130 FL131 FL132 0RD1002F609 0RD1001F609 0RD1002F609 0RD0391F609 0RD1002H609 0RS4700K607 0RS4700K607 0RD1001F609 0RD1000F609 0R...

Page 38: ...E2828 17 2MH 60TURNS FILTER EMC SQE2828 17 2MH 60TURNS FILTER EMC SQE3535 27 5MH 0 6PHY FILTER EMC ZCAT30351330MK FILTER EMC ZCAT30351330MK FILTER EMC STC222D 50VOLT 4A 2200PF FILTER EMC SCR470R220 R TP FILTER EMC STC222D 50VOLT 4A 2200PF FILTER EMC STC222D 50VOLT 4A 2200PF FILTER EMC MLB2012090300AN1 FILTER EMC MLB2012090300AN1 FILTER EMC MLB2012090300AN1 FILTER EMC MLB2012090300AN1 FILTER EMC ML...

Page 39: ...ed in Korea P NO 3828VD0183B CANADA LG Electronics Canada Inc 550 Matheson Boulevard East Mississauga Ontario L4Z 4G3 USA LG Customer Interactive Center P O Box 240007 201 James Record Road Huntsville AL 35824 ATTN CIC ...

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