DOWNLOAD LG 55SL80YD-AA (CHASSIS:LB91T) Service Manual ↓ Size: 4.86 MB | Pages: 66 in PDF or view online for FREE

Model
55SL80YD-AA (CHASSIS:LB91T)
Pages
66
Size
4.86 MB
Type
PDF
Document
Service Manual
Brand
Device
TV / LCD
File
55sl80yd-aa-chassis-lb91t.pdf
Date
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LG 55SL80YD-AA (CHASSIS:LB91T) Service Manual ▷ View online

Making 
Revision
2009. 2 . 1
12/25
LCD TV
Symptom
HDMI1 or 2 or 3 or 4 No Video 
Problem
Revision 
Problem
Check Signal format
Is it supported?
YES
Check the HDMI Cable
YES
Check MAIN B’D IC600
MAIN B’D JACK Check
JK600 -> HDMI1
JK601  > HDMI2
YES
JK601 -> HDMI2
JK602 -> HDMI3
JK603 -> HDMI4
YES
Replace MAIN B’D IC 100
Making 
Revision
2009. 2 . 1
13/25
LCD TV
Symptom
All Source no Audio Problem
Check The Speaker
Replace Speaker
Revision 
Check Speaker Cable
YES
NO
Replace Speaker Cable
NO
YES
Replace MAIN B’D IC807
NO
YES
MAIN B’D
L824 = 1.8V
YES
MAIN B’D
Check R701, R702, R705
Signal
YES
Replace MAIN B’D IC100
NO
Check P700 Cable
NO
MAIN B’D
L705 Pin #1
L704 Pin #2
PWM Signal ?
YES
Replace MAIN B’D IC701
NO
Replace MAIN B’D IC 701
YES
Making 
Revision
2009. 2 . 1
14/25
LCD TV
Symptom
Digital TV No Audio Problem
Digital TV Video OK ?
Revision 
YES
Replace MAIN B’D IC 100
Making 
Revision
2009. 2 . 1
15/25
LCD TV
Symptom
Analog TV No Audio Problem
Revision 
Analog TV Video OK ?
YES
Check MAIN B’D
R2046 Signal (SIF)
Replace MAIN B’D IC100
YES
MAIN B’D
L1101 Signal (SIF)
Replace MAIN B’D IC1102
NO
NO
YES
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