DOWNLOAD LG 42LF2500 / 42LF2510 (CHASSIS:LD91A) Service Manual ↓ Size: 5.78 MB | Pages: 78 in PDF or view online for FREE

Model
42LF2500 42LF2510 (CHASSIS:LD91A)
Pages
78
Size
5.78 MB
Type
PDF
Document
Service Manual
Brand
Device
TV / LCD
File
42lf2500-42lf2510-chassis-ld91a.pdf
Date
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LG 42LF2500 / 42LF2510 (CHASSIS:LD91A) Service Manual ▷ View online

Check MAIN B’D
JK405 Pin #1 5V ?
NO
Check MAIN B’D
R848 12V ?
Check that the USB Memory & HDD are supported by Spec
(Refer to User Manual’s USB cautions)
YES
Check MAIN B’D
R801 5V ?
Replace MAIN B’D IC402
YES
NO
Replace MAIN B’D IC808
YES
YES
Replace MAIN B’D IC 100
Check MAIN B’D
JK405 OK ?
YES
NO
Replace MAIN B’D JK405
Making 
Revision 
2009. 2 . 1
31/34
 LCD TV
Symptom
USB No Connect Problem
32~47LH4000
Check IR B’D P1 Wafer
& Connector
Check MAIN B’D P1304
Wafer & Connector
YES
NO
Replace it
YES
Replace IR B’D
Making 
Revision 
2009. 2 . 1
32/34
 LCD TV
Symptom
Remote Control Problem
26~42LH2000
32~47LH3000/LH4000
Check IR B’D P1 Wafer
& Connector
Check MAIN B’D P1305
Wafer & Connector
YES
NO
Replace MAIN B’D IC100
IR B’D IC1 Pin #3
Voltage 4V 
 ?
NO
NO
Replace it
YES
Replace IR B’D IC1
NO
Replace MAIN B’D IC100
Making 
Revision 
2009. 2 . 1
33/34
 LCD TV
Symptom
Remote Control Problem
19~22LH2000
Check IR B’D P1 Wafer
& Connector
Check MAIN B’D P1304
Wafer & Connector
YES
YES
NO
Replace it
Replace IR B’D
Making 
Revision 
2009. 2 . 1
34/34
 LCD TV
Symptom
Intelligent Sensor Problem
32~47LH4000
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