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

LG 42LF2500 / 42LF2510 (CHASSIS:LD91A) Service Manual ▷ View online

Check the SCART Cable
YES
Replace MAIN B’D
IC1103
MAIN B’D
R239 (Right Sound)
R240 (Left Sound)
signal ?
NO
YES
Replace MAIN B’D IC 100
Analog TV Audio OK
YES
Check MAIN B’D JK1100
Replace MAIN B’D JK1100
NO
YES
Check the Trouble Shooting Guide
Analog TV No video
NO
Making 
Revision 
2009. 2 . 1
27/34
 LCD TV
Symptom
AV1 No Audio Out Problem
26~42LH2000
32~47LH3000/LH4000
Check the SCART Cable
YES
Replace MAIN B’D
IC1103
MAIN B’D
R250 (Right Sound)
R251 (Left Sound)
signal ?
NO
YES
Replace MAIN B’D IC 100
Speaker Audio OK
YES
Check MAIN B’D JK1101
Replace MAIN B’D JK1101
NO
YES
Check the Trouble Shooting Guide
Related to Audio Problem
NO
Making 
Revision 
2009. 2 . 1
28/34
 LCD TV
Symptom
AV2 No Audio Out Problem
26~42LH2000
32~47LH3000/LH4000
Check the Headphone Cable
YES
Replace MAIN B’D
IC700
MAIN B’D
R237 (Right Sound)
R238 (Left Sound)
signal ?
NO
YES
Replace MAIN B’D IC 100
Speaker Audio OK
YES
Check MAIN B’D JK700 or JK701
Replace MAIN B’D JK700 or JK701
NO
YES
Check the Trouble Shooting Guide
Related to Audio Problem
NO
Making 
Revision 
2009. 2 . 1
29/34
 LCD TV
Symptom
Headphone No Audio Problem
26~42LH2000
32~47LH3000/LH4000
Check the SPDIF Cable
YES
Check MAIN B’D R230
PWM Signal ?
Replace MAIN B’D IC 100
Speaker Audio OK
YES
Check MAIN B’D JK403
Replace MAIN B’D JK403
NO
YES
NO
Check the Trouble Shooting Guide
Related to Audio Problem
NO
Making 
Revision 
2009. 2 . 1
30/34
 LCD TV
Symptom
SPDIF No Audio Problem
26~42LH2000
32~47LH3000/LH4000
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