DOWNLOAD LG 42LH3000 / 42LH3010 / 42LH3020 / 42LH3040 (CHASSIS:LD91A) Service Manual ↓ Size: 4.15 MB | Pages: 79 in PDF or view online for FREE

Model
42LH3000 42LH3010 42LH3020 42LH3040 (CHASSIS:LD91A)
Pages
79
Size
4.15 MB
Type
PDF
Document
Service Manual
Brand
Device
TV / LCD
File
42lh3000-42lh3010-42lh3020-42lh3040-chassis-ld91a.pdf
Date
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LG 42LH3000 / 42LH3010 / 42LH3020 / 42LH3040 (CHASSIS:LD91A) Service Manual ▷ View online

Check Signal format
Is it supported?
Check the SCART Cable
YES
Check MAIN B’D JK1100
Replace MAIN B’D JK1100
YES
NO
YES
Check MAIN B’D C200 (RED)
C201 (GREEN)
C202 (BLUE)
Video Signal ?
Replace
MAIN B’D C200, C201, C202
NO
Replace MAIN B’D IC 100
YES
Making 
Revision 
2009. 2 . 1
 LCD TV
Symptom
AV1(Scart RGB) No Video
Problem
26~42LH2000
32~47LH3000/LH4000
8/34
Check Signal format
Is it supported?
Check the SCART Cable
YES
MAIN B’D JK1101 Check
Replace MAIN B’D JK1101
YES
NO
Check MAIN B’D R1133
Video Signal ?
NO
YES
Check MAIN B’D C211
Video Signal ?
Replace MAIN B’D C211
NO
Replace MAIN B’D IC 100
YES
Making 
Revision 
2009. 2 . 1
 LCD TV
Symptom
AV2 No Video Problem
26~42LH2000
32~47LH3000/LH4000
9/34
Check Signal format
Is it supported?
Check the CVBS Cable
YES
MAIN B’D JK402 Check
Replace MAIN B’D JK402
YES
NO
Check MAIN B’D R400
Video Signal ?
NO
YES
Check MAIN B’D C217
Video Signal ?
Replace MAIN B’D C217
NO
Replace MAIN B’D IC 100
YES
Making 
Revision 
2009. 2 . 1
 LCD TV
Symptom
AV3(CVBS) No Video Problem
26~42LH2000
32~47LH3000/LH4000
10/34
Check Spec (Refer to User Manual)
Is it supported?
Check the SCART Cable
YES
Check the Trouble Shooting Guide
Analog TV No video
YES
Check MAIN B’D R1205
Video Signal ?
NO
Replace MAIN B’D Q1205
YES
Check MAIN B’D C1107
Video Signal ?
NO
MAIN B’D JK1100 Check
YES
Making 
Revision 
2009. 2 . 1
11/34
 LCD TV
Symptom
AV1 No Video Out Problem
26~42LH2000
32~47LH3000/LH4000
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