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SERVICE MANUAL

Product Type:

LCD Projection TV

Chassis:

MB-042B

Manual Series:
Manual Part #:
Model Line:
Product Year:

2004

M52W56LCD

Model Series:

CONTENTS

Product Specifications ..................................................4
Description of Controls .................................................5
Adjustment Instructions ...............................................12
Diagrams ...................................................................29
Parts List ...................................................................31
Schematics ....................................................................

Published Nov. 2004

by Technical Publications

LG Electronics USA, Inc.

201 James Record Road,

Huntsville, Alabama 35824-1513

Copyright © 2004 by LG Electronics U.S.A., Inc.

Printed in Korea

http//www.zenithservice.com

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Содержание M52W56LCD

Страница 1: ...eries CONTENTS Product Specifications 4 Description of Controls 5 Adjustment Instructions 12 Diagrams 29 Parts List 31 Schematics Published Nov 2004 by Technical Publications LG Electronics USA Inc 201 James Record Road Huntsville Alabama 35824 1513 Copyright 2004 by LG Electronics U S A Inc Printed in Korea http www zenithservice com ...

Страница 2: ... Such components commonly are called Electrostatically Sensitive ES Devices Examples of typical ES devices are integrated circuits and some field effect transistors and semiconductor chip components The following techniques should be used to help reduce the incidence of component damage caused by static electricity 1 Immediately before handling any semiconductor component or semiconductor equipped...

Страница 3: ...IONS 4 DESCRIPTION OF CONTROLS 5 ADJUSTMENT INSTRUCTION 12 PRINTED CIRCUIT BOARDS 18 BLOCK DIAGRAM 29 EXPLODED VIEW 30 32 EXPLODED VIEW PARTS LIST 31 33 REPLACEMENT PARTS LIST 34 SCHEMATIC DIAGRAM TABLE OF CONTENTS ...

Страница 4: ...er 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 specificati...

Страница 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...

Страница 6: ... 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 your TV Monitor Out Connects to a second TV or Monitor Left Right Audio Used for stereo sound from various types of equipmen...

Страница 7: ...el To use the side jacks as the signal source select them using Main Input menu as described on page 25 They will be named Side Video in the Main Input menu Left 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 vide...

Страница 8: ...the sound 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 ...

Страница 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 ...

Страница 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 ...

Страница 11: ...n your remote control VOLUME UP DOWN CHANNEL UP DOWN Operation indicator Lamp indicator Temperature indicator 1 2 3 4 5 6 7 8 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 ...

Страница 12: ...hen 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 H L level adjustment is ...

Страница 13: ... Select 2 Position 3 Select H_Position with channel key in adjust mode 4 Adjust data with using the Volume key on the Remote Control in order to get left right screen symmetry Refer to Fig 3 5 4 Vertical Position Adjustment 1 Select V_Position with channel key in adjust mode 2 Change the data to symmetrized top and bottom of screen refer to Fig 3 by pressing the Volume key on Remote Control 6 Comp...

Страница 14: ...put signal level in the VDP Test Pattern change the 14th RGB Data value to come out white balance x 283 y 297 D9300K and measured step luminance in 5 8 As shown above output the VDP Test Pattern sig nal 208 192 176 160 144 128 112 96 80 64 48 32 16 and change the RGB Data value of each step to come out white balance x 283 y 297 D9300K and measured luminance in 3 7 5 Gamma adjustment manually This ...

Страница 15: ...ccording to RMID1 and RMAX value use it while adjusting 4 coefficient 16 RL3L Lower 9bit of MAX brightness correction coefficient in R MID1 Change according to RMID1 and RMAX value use it while adjusting 4 coefficient L Coefficient Calculation Method Using 3coefficient Level Assume that the value of R G B MIN MID2 MID1 is 192 448 704 R G B MIN 192 R G B MID2 448 R G B MID1 704 O L Coefficient RL1H...

Страница 16: ...th ET7050 IC through measurement equipment of optics Adjust screen coordinates data to adjust the color uniformity of max point At this time make sure that deviation is 5 5 and standard is color coordinate of center 3 Output the VDP TEST PATTERN signal correspond to the MID value Read the white coordinates and communicate 3 line with ET7050 IC through measurement equipment of optics Adjust screen ...

Страница 17: ...ite 01 to the S W for writing DDC 3 Put the EDID write instruction into operation 11 Check and adjustment RGB Alignment 11 1 Required Test Equipment Service Remote Control 11 2 Preparation for Adjustment 1 Connect power source to TV Set and turn TV Set on 2 Before adjusting Heat Run more than 15 minutes 11 3 Check and adjustment RGB Alignment 1 After pressing EYE key enter the Fig 5 pattern 2 Chec...

Страница 18: ... 18 PRINTED CIRCUIT BOARD MAIN TOP ...

Страница 19: ... 19 PRINTED CIRCUIT BOARD MAIN BOTTOM ...

Страница 20: ... 20 PRINTED CIRCUIT BOARD TUNER TOP ...

Страница 21: ... 21 PRINTED CIRCUIT BOARD TUNER BOTTOM ...

Страница 22: ... 22 PRINTED CIRCUIT BOARD DRIVER TOP ...

Страница 23: ... 23 PRINTED CIRCUIT BOARD DRIVER BOTTOM ...

Страница 24: ... 24 PRINTED CIRCUIT BOARD DIGITAL TOP ...

Страница 25: ... 25 PRINTED CIRCUIT BOARD DIGITAL BOTTOM ...

Страница 26: ... 26 PRINTED CIRCUIT BOARD SMPS AC INPUT ...

Страница 27: ... 27 PRINTED CIRCUIT BOARD SIDE A V CRM TOP CRM BOTTOM ...

Страница 28: ... 28 CASE DET PRE AMP INTERFACE CONTROL TOP CONTROL BOTTOM PRINTED CIRCUIT BOARD ...

Страница 29: ... 29 BLOCK DIAGRAM ...

Страница 30: ...303 305 121 300 301 310 302 650 120 400 431 430 432 433 402 403 681 434 306 680 670 401 630 700 410 330 404 520 540 501 550 560 603 720 174 582 580 584 600 608 601 502 530 612 610 611 620 640 641 602 583 721 503 571 572 570 ...

Страница 31: ...M 530 6871VPMA46K PCB ASSEMBLY POWER SMPS MB 042B M I RU 52SZ81L 540 6871VSME68D PCB ASSEMBLY SUB TUNER MB042B RU 52SZ81L 550 6871VSMX04S PCB ASSEMBLY SUB DIGITAL MB042B RU 52SZ81L 560 6871VSME84A PCB ASSEMBLY SUB CRM MB042A RU 44SZ80L 570 6871VSMZY1A PCB ASSEMBLY SUB MB042B DRIVER M I 571 4930V00283C HOLDER DRIVER SIRROCO SECC RN 48SZ40H 572 4814V00384J SHIELD COVER 44 52SZ50 NON SECC EGI DRIVER ...

Страница 32: ...ED VIEW 304 303 305 121 300 301 310 302 650 120 400 431 430 432 433 402 403 681 434 306 680 670 401 520 560 502 540 501 550 601 174 610 620 611 640 530 720 612 572 571 570 600 580 581 630 700 410 503 573 330 404 ...

Страница 33: ...4980V00A59B SUPPORTER SECC EGI MAIN FRMAE 44SZ80 503 4811V00125D BRACKET ASSEMBLY REAR AV RU 44SZ80L MB042B TERMINAL BOARD 520 6871VMMR46L PCB ASSEMBLY MAIN MB042B RU 52SZ80L USA 530 6871VPMA46A PCB ASSEMBLY POWER SMPS MB042B RU 44SZ80L MI 540 6871VSME68A PCB ASSEMBLY SUB TUNER MB042B RU 44SZ80L 550 6871VSMX04P PCB ASSEMBLY SUB DIGITAL MB042B RU 52SZ80L 560 6871VSME84A PCB ASSEMBLY SUB CRM MB042A ...

Страница 34: ...P 2SC3875S ALY KEC LOCA NO PART NO DESCRIPTION IC1 IC100 IC100 IC1000 IC1001 IC1002 IC1003 IC1005 IC1007 IC1008 IC1009 IC101 IC1010 IC1011 IC1012 IC1013 IC1014 IC1015 IC1016 IC1017 IC1018 IC1019 IC102 IC1020 IC1021 IC1022 IC1023 IC1024 IC1025 IC1026 IC103 IC1031 IC104 IC105 IC106 IC107 IC1106 IC1200 IC1201 IC2 IC200 IC3 IC300 IC301 IC302 IC305 IC306 0IZZVC0124A 0IPH741400E 0IPMGON013B 0IMI623200B ...

Страница 35: ...KEC LED LTL 30EWJ KDS184S CHIP 85V 300MA KEC TP B140A 40V 1A 30A SEC 0 5MA SDC15 TVS SOT23 12 8V LOCA NO PART NO DESCRIPTION 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 ZD600 ZD601 ZD839 0DR050008AA 0DR050008AA 0DR0500...

Страница 36: ...10 0 01UF 1608 50V 10 0 01UF 1608 50V 10 LOCA NO PART NO DESCRIPTION C1062 C1063 C1064 C1065 C1066 C1067 C1068 C1069 C1070 C1071 C1072 C1073 C1074 C1075 C1076 C1077 C1078 C1081 C1082 C1083 C1084 C1085 C1086 C1087 C1088 C1089 C109 C1090 C1091 C1092 C1093 C1094 C1095 C1096 C1097 C1098 C1099 C110 C1100 C1101 C111 C1111 C1112 C1113 C1114 C112 C1121 C1122 C1123 C1124 0CK103CK56A 0CK103CK56A 0CK103CK56A...

Страница 37: ...1UF 1608 50V 10 0 01UF 1608 50V 10 0 01UF 1608 50V 10 47UF STD 16V M 0 01UF 1608 50V 10 0 01UF 1608 50V 10 LOCA NO PART NO DESCRIPTION C1172 C1173 C1174 C1175 C1176 C1177 C1178 C1179 C118 C1180 C1181 C1182 C1183 C1184 C1185 C1190 C1191 C1192 C1193 C1194 C1195 C1196 C1197 C1198 C1199 C120 C1200 C1200 C1201 C1201 C1202 C1203 C1203 C1204 C1204 C1205 C1206 C1206 C1207 C1207 C1208 C1208 C1209 C1209 C12...

Страница 38: ...0 0 01UF 1608 50V 10 47UF MVG 16V M 0 01UF 1608 50V 10 22UF MVG 25V 20 4 7UF STD 50V 20 22UF MVG 16V 20 LOCA NO PART NO DESCRIPTION C1325 C1326 C1327 C1331 C1332 C1333 C1334 C1338 C1339 C134 C1340 C1341 C136 C139 C145 C147 C149 C15 C150 C151 C162 C2 C20 C200 C200 C201 C202 C203 C203 C204 C205 C205 C206 C207 C207 C208 C209 C209 C210 C210 C211 C211 C212 C212 C213 C213 C214 C214 C215 C215 C216 C217 C...

Страница 39: ...0V M 220UF STD 16V M 220UF STD 10V M 220UF STD 10V M 220UF STD 10V M LOCA NO PART NO DESCRIPTION C713 C714 C715 C715 C718 C719 C720 C722 C724 C725 C726 C727 C727 C728 C729 C730 C730 C731 C732 C732 C733 C733 C734 C734 C735 C736 C737 C739 C741 C742 C743 C758 C801 C801 C803 C805 C807 C808 C810 C811 C812 C813 C814 C815 C816 C820 C822 C824 C825 C827 C829 C831 C832 C833 0CE227DD618 0CE476SF6DC 0CE227DD6...

Страница 40: ...100 P1005 P1006 P101 P101A P101B P102 P102A P102B P104 P1107 P1200A P1200B P201A P202A P300 AR1001 AR1002 AR1003 AR1004 AR1005 AR1006 AR1007 AR1008 AR1009 AR1010 AR1011 AR1012 AR1013 AR1014 AR1015 AR1016 AR1017 AR1018 AR1019 AR1020 AR1021 AR1022 AR1023 AR1024 AR1025 AR1026 AR503 AR504 AR506 150 C02F 6170VMCA06N 6170VMCA13T 6630TGA004F 6630BX05007 6630B60F532 6630VZS001C 6630VZS001C 6630B60F532 663...

Страница 41: ... 00 75 OHM 1 6 W 5 00 75 OHM 1 6 W 5 00 220 OHM 1 6 W 5 00 10 OHM 1 6 W 5 3 3 OHM 1 2 W 5 00 3 3 OHM 1 2 W 5 00 4 7M OHM 1 2 W 5 2 2M OHM 1 6 W 5 00 2 2M OHM 1 6 W 5 00 33K OHM 1 6 W 5 10K OHM 1 6 W 5 560K OHM 1 4 W 1 00 510K OHM 1 4 W 1 LOCA NO PART NO DESCRIPTION R816 R817 R818 R819 R820 R821 R823 R824 R831 R832 R833 R834 R835 R836 R837 R838 R839 R840 R841 R842 R843 R844 R845 R850 R851 R852 R854...

Страница 42: ...535 27 5MH FILTER EMC ZCAT3035 1330 M K FILTER EMC ZCAT3035 1330 M K FILTER EMC STC222D 50VOLT 4A 2200PF FILTER EMC SCR470R220 FILTER EMC STC222D 50VOLT 4A 2200PF FILTER EMC STC222D 50VOLT 4A 2200PF FILTER EMC HD 1M2012 301J 100MHZ FILTER EMC MLB 201209 0300A N1 300 OHM FILTER EMC HD 1M2012 301J 100MHZ FILTER EMC MLB 201209 0300A N1 300 OHM FILTER EMC HD 1M2012 301J 100MHZ FILTER EMC MLB 201209 03...

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