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SERVICE MANUAL
Product Type:
Chassis:
Manual Series:
Manual Part #:
Model Line:
Product Year:
Specifications ..............................................................6
Adjustment Instructions ...............................................10
Trouble Shooting ........................................................13
Exploded View............................................................23
Schematics ....................................................................
Printed in Korea
LCD TV
LA63E
MFL37033101
2006
CONTENTS
Published Oct. 2003
by Technical Publications
LG Electronics USA, Inc.
201 James Record Road,
Huntsville, Alabama 35824-1513
Copyright © 2003 by Zenith Electronics Corporation
http//www.zenithservice.com
Model Series:
32/37/42LC2DA
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Summary of Contents for Zenith 32LC2DA
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Page 1: Service Manual
CONTENTS Specifications ..............6 Adjustment Instructions ..........10 Trouble Shooting ............13 Exploded View............23 Schematics ..............Published Oct. 2003 by Technical Publications LG Electronics USA, Inc. 201 James Record Road, Huntsville, Alabama 35824-1513 Copyright © 2003 by Zenith Electronics Corporation Printed in Korea... -
Page 2: Table Of Contents
CONTENTS CONTENTS ....................2 PRODUCT SAFETY ..................3 SPECIFICATION ..................6 ADJUSTMENT INSTRUCTION ...............10 TROUBLE SHOOTING ................15 BLOCK DIAGRAM...................22 EXPLODED VIEW .................. 23 REPLACEMENT PARTS LIST ............... 29 SVC. SHEET ....................- 2 -... -
Page 3: Product Safety
SAFETY PRECAUTIONS IMPORTANT SAFETY NOTICE Many electrical and mechanical parts in this chassis have special safety-related characteristics. These parts are identified by in the Schematic Diagram and Replacement Parts List. It is essential that these special safety parts should be replaced with the same components as recommended in this manual to prevent Shock, Fire, or other Hazards. -
Page 4: Servicing Precautions
SERVICING PRECAUTIONS CAUTION: Before servicing receivers covered by this service unit under test. manual and its supplements and addenda, read and follow the 2. After removing an electrical assembly equipped with ES SAFETY PRECAUTIONS on page 3 of this publication. devices, place the assembly on a conductive surface such as NOTE: If unforeseen circumstances create conflict between the aluminum foil, to prevent electrostatic charge buildup or... - Page 5 IC Remove/Replacement Some chassis circuit boards have slotted holes (oblong) through Circuit Board Foil Repair which the IC leads are inserted and then bent flat against the Excessive heat applied to the copper foil of any printed circuit circuit foil. When holes are the slotted type, the following technique board will weaken the adhesive that bonds the foil to the circuit should be used to remove and replace the IC.
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Page 6: Specification
SPECIFICATION NOTE : Specifications and others are subject to change without notice for improvement. 1. Application range 3. Test method 1.1 This spec sheet is applied all of the 32/37/42" LCD TV with 3.1 Performance : LGE TV test method followed LA63E chassis. - Page 7 5. Chroma & Brightness 5.1 FOR 32LC2D CONDITION : EZ-Picture "Normal" Item Unit Remark White peak brightness cd/m HDMI input, full white Contrast Ratio 600:1 800:1 Brightness uniformity Refer to LCD SPEC. Color coordinate 0.633 +/- 0.03 0.339 +/- 0.03 GREEN 0.286 +/- 0.03...
- Page 8 5.3 FOR 42LC2D CONDITION : EZ-Picture "Normal" Item Unit Remark White peak brightness cd/m HDMI input, full white Contrast Ratio 600:1 800:1 Brightness uniformity Refer to LCD SPEC. Color coordinate 0.633 +/- 0.03 0.339 +/- 0.03 GREEN 0.286 +/- 0.03 0.610 +/- 0.03 BLUE...
- Page 9 8. HDMI Input (PC/DTV) Resolution H-freq(kHz) V-freq.(Hz) Pixel clock(MHz) Proposed 640*480 31.469 59.94 25.17 VESA(VGA) 800*600 37.879 60.31 40.00 VESA(SVGA) 1024*768 48.363 60.00 65.00 VESA(XGA) 1280*768 47.776 59.87 79.50 VESA(WXGA) 1360*768 47.712 60.01 85.50 VESA(WXGA) 1366*768 60.023 60.00 80.00 720*480 31.469 59.94 27.00...
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Page 10: Adjustment Instruction
ADJUSTMENT INSTRUCTION 1. Application Object If you turn on a still screen more than 20 minutes (Especially These instructions are applied to all of the LCD TV, LA63E. Digital pattern(13 CH), Cross Hatch Pattern), an afterimage may occur in the black level part of the screen. 3. - Page 11 (3) Click the first icon shown in fig.9. The window seen in (3) Click the Send. fig.10 should appear. (4) When you see (ISP COMPLETE) the download is complete. 3-4. Set Method (1) MCU Select: MTV512M64 (2) Option R/W Option: Auto Write(Verity) Jig Option: Myson Transmit Speed: Medium (3) Check: Just do it with blank micom.
- Page 12 4-3. Adjustment 4. ADC-Set Adjustment (1) Select Component1 as the input with 100% Horizontal 4-1. Synopsis Color Bar Pattern(HozTV31Bar) in 480i Mode (2) After receiving signal for at least 1 second, press the ADJ ADC-Set adjustment to set the black level and the Gain to Key on the Service R/C to enter the ‘Ez - Adjust’...
- Page 13 [37LC2DA] :EDID for HDMI-1 (DDC (Display Data Channel) Data) EDID Block 0 table = [32LC2DA] :EDID for HDMI-1 (DDC (Display Data Channel) Data) EDID Block 0 table = 00 FF FF FF FF FF FF 00 1E 6D 01 00 01 01 01 01...
- Page 14 [42LC2DU] 7. Adjustment of White Balance :EDID for HDMI-1 (DDC (Display Data Channel) Data) EDID Block 0 table = 7-1. Required Equipment (1) Color analyzer (CA-100 or CA210 similar product) 00 FF FF FF FF FF FF 00 1E 6D 01 00 01 01 01 01 (2) Automatic adjustor (with automatic adjustment necessity 10 00 10 01 03 80 73 41 96 0A CF 74 A3 57 4C B0 23 and the RS-232C communication being possible)
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Page 15: Trouble Shooting
8. Shipping Conditions Item Condition Remark Input Mode TV02CH Volume Level Mute Aspect Ratio 16:9 Video EZ Picture Daylight Contrast Brightness Color Sharpness Tint Color-temperature Cool Auto(On) Advanced Cinema3:2 Mode(Off) Black Level(RF,HDMI=>Low) Audio Audio Language EZ Sound Normal Balance Treble Bass Front Surround TV Speaker... -
Page 16: Svc Remocon
SVC REMOCON To turn the TV on or off POWER To turn the TV on automatically if the power is supplied to the TV. (Use the POWER ON POWER key to deactivate): It should be deactivated when delivered. To activate the mute function. MUTE To check TV screen image easily. - Page 17 - 17 -...
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Page 22: Block Diagram
BLOCK DIAGRAM - 22 -... -
Page 23: Exploded View
- 23 -... - Page 24 Power Supply Assembly, FREE H3/E2 LCD MODEL LCD LG ELECTRONICS LB LC EBU33410101 Main Total Assembly, 32LC2DA-UE Zenith LA63E MGJ32604604 Plate, PRESS SBHG 0.8 SHIELD SBHG-A C/SKD 32LC2DA-UE REAR SHIELD 49509K0195B Plate, FRAME, SUPPORT 32LC2 C/SKD 68719ST899B PCB Assembly,Sub, SUB T.T LA51D 32LC2D-UD ALKRLLX KEY TOTAL (EXCEPT MECH'''') EBR31360201 PCB Assembly, SUB, T.T LA63E 26LC2D-UE .
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- Page 26 Power Supply Assembly, FREE H3/E2 LCD MODEL LCD LG ELECTRONICS LB LC 37INCH AGF31624101 Package Assembly, MAIN 37LC2DA-UE LA63E MAIN PACKAGE ASSY MGJ32550712 Plate,Shield, PRESS EGI 0.8T SHIELD EGI 37LC2DA-UE FOR ZENITH (HDMI 1 35509K0197A CoverMOLD HIPS 32LC2 HIPS CABLE MANAGEMENT - 26 -...
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- Page 28 EXPLODED VIEW PARTS LIST(42LC2DA) DESCRIPTION PART NO. ACQ31038004 Cover Assembly, 42LC2DA-UE BCM 42" CABINET ASS'Y ZENITH SILVER C/SKD EAJ31412701 LCD,Module-TFT, LC420W02-SLA2 WXGA 42INCH 1366X768 500CD COLOR 72% 16/9 800vs1 P7(3.4phi) LG PHILIPS LCD 6304FLP363A LCD,Module-TFT, LC420W02-SLA1 DRIVER 42INCH 1365X768 500CD COLOR 72% 16/9 800:1 - LG PHILIPS LCD 3809900165Q Cover Assembly, 42LC2DA-UE BCM 42"...
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Page 29: Replacement Parts List
*S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION CAPACITOR C6005 0CE107WF6DC MVK6.3TP16VC100M 100uF 20%-32LC2DA C6006 0CE476WF6DC MVK6.3TP16VC47M 47uF 20% 16-37/42LC2DA C1001 0CE107WF6DC MVK6.3TP16VC100M 100uF 20% C6007 0CK104BF56A C1005X7R104KET 100nF 10% 16-37/42LC2DA C2003 0CE107WF6DC MVK6.3TP16VC100M 100uF 20%... - Page 30 0805B474K160CT 470nF 10% 16 C3062 0CK103BH56A C1005X7R1E103KT- 10nF 10% 2 C5076 0CK104BF56A C1005X7R104KET 100nF 10% 16 C3063 0CK102BK56A 0402B102K500CT 1nF 10% 50V C6001 0CK105CD56A C1608X7R1A105KT 1uF 10% 10V-32LC2DA C3067 0CK104BF56A C1005X7R104KET 100nF 10% 16 C6002 0CK103BH56A C1005X7R1E103KT- 10nF 10% 2-32LC2DA - 30 -...
- Page 31 DATE: 2006. 11. 06. *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION C6003 0CK103BH56A C1005X7R1E103KT- 10nF 10% 2-32LC2DA C3008 0CC080CK11A C1608C0G1H080DT 8pF 0.5PF 5 C6004 0CC101CK41A C1608C0G1H101JT 100pF 5% 50-32LC2DA C3012 0CC150CK41A...
- Page 32 L4016 0LCML00003B MLB-201209-0120P-N2 120OHM L4017 6210TCE001G HH-1M3216-501JT 500OHM 3.2X DIODEs L4021 6210TCE001E HB-1M2012-800JT 80OHM 2X1.2 D4003 0DD184009AA KDS184 KDS184 TP KEC - 85V-32LC2DA L6004 0LCML00003B MLB-201209-0120P-N2 120OHM D4003 0DSIH00028A MC2838-T112-1 1.2V 75V 300M-37/42LC2DA L7022 0LCML00003B MLB-201209-0120P-N2 120OHM D4005 0DD184009AA KDS184 KDS184 TP KEC - 85V-32LC2DA...
- Page 33 R1039 0RJ0000C678 MCR01MZPJ000 0OHM 5% 1/16W TRANSISTOR R1040 0RJ0000C678 MCR01MZPJ000 0OHM 5% 1/16W Q1001 0TR387500AA 2SC3875S(ALY) NPN 5V 60V 50-32LC2DA R1041 0RJ0000C678 MCR01MZPJ000 0OHM 5% 1/16W Q1001 0TRIY80001A 2SC3052 NPN 6V 50V 50V 200M-37/42LC2DA R1042 0RJ0000C678 MCR01MZPJ000 0OHM 5% 1/16W...
- Page 34 MCR01MZPJ472 4.7KOHM 5% 1/1 R5128 0RJ2701D677 MCR03EZPJ272 2.7KOHM 5% 1/1 R4039 0RJ0000C678 MCR01MZPJ000 0OHM 5% 1/16W R6001 0RJ6801D677 MCR03EZPJ682 6.8KOHM 5% 1/1-32LC2DA R4040 0RJ0000C678 MCR01MZPJ000 0OHM 5% 1/16W R6002 0RJ1002D677 MCR03EZPJ103 10KOHM 5% 1/10-32LC2DA R4041 0RJ0000C678 MCR01MZPJ000 0OHM 5% 1/16W...
- Page 35 DATE: 2006. 11. 06. DATE: 2006. 11. 06. *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION R7035 0RJ0222C678 MCR01MZPJ220 22OHM 5% 1/16W R2046 0RJ4991D477 MCR03EZPF4991 4.99KOHM 1% 1 R7043 0RJ3900D677 MCR03EZPJ391 390OHM 5% 1/10 R2047 0RJ4991D477...
- Page 36 MCR01MZPJ000 0OHM 5% 1/16W R4166 0RJ1002D677 MCR03EZPJ103 10KOHM 5% 1/10 R5131 0RJ0000C678 MCR01MZPJ000 0OHM 5% 1/16W R4186 0RJ1001D477 MCR03EZPF102 1KOHM 1% 1/10W-32LC2DA R5132 0RJ0000C678 MCR01MZPJ000 0OHM 5% 1/16W R4186 0RJ1001D677 MCR03EZPJ102 1KOHM 5% 1/10W-37/42LC2DA R6032 0RJ0222C678 MCR01MZPJ220 22OHM 5% 1/16W...
- Page 37 DATE: 2006. 11. 06. DATE: 2006. 11. 06. *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION R6037 0RJ0222C678 MCR01MZPJ220 22OHM 5% 1/16W R7243 0RJ1002D677 MCR03EZPJ103 10KOHM 5% 1/10 R6038 0RJ0222C678 MCR01MZPJ220 22OHM 5% 1/16W R7245 0RJ1002D677...