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
20/25
LCD TV
Symptom
RGB, HDMI-PC No Audio Problem
RGB Video OK ?
Revision 
Check the PC Audio Cable
YES
YES
YES
Check MAIN B’D JK401
Replace MAIN B’D JK401
NO
YES
MAIN B’D
C2015 (Right Sound)
C2016 (Left Sound)
signal ?
YES
NO
Replace MAIN B’D IC 100
Check MAIN B’D
C2015, C2016
NO
Making 
Revision
2009. 2 . 1
21/25
LCD TV
Symptom
HDMI-DTV No Audio Problem
HDMI Video OK ?
Revision 
YES
Check the ADJUST MENU
EDID OK ?
Download EDID
(Refer to Adjustment Spec)
NO
YES
NO
Check the HDMI Cable
Replace MAIN B’D IC100
YES
Making 
Revision
2009. 2 . 1
22/25
LCD TV
Symptom
SPDIF No Audio Problem
S
k  
A di   OK
Check the Trouble Shooting Guide
Revision 
Check the SPDIF Cable
Speaker Audio OK
YES
g
Related to Audio Problem
NO
YES
Check MAIN B’D JK403
Replace MAIN B’D JK403
NO
YES
Check MAIN B’D R2305
PWM Signal ?
YES
NO
Replace MAIN B’D IC 100
Making 
Revision
2009. 2 . 1
23/25
LCD TV
Symptom
USB No Connect Problem
Check that the USB Memory & HDD are supported by Spec
Revision 
(Refer to User Manual’s USB cautions)
YES
Check MAIN B’D
JK406 OK ?
NO
Replace MAIN B’D JK406
Check MAIN B’D
JK406 Pin #1 5V ?
YES
Replace MAIN B’D IC 100
YES
NO
NO
Check MAIN B’D
R826 5V ?
Replace MAIN B’D IC808
YES
NO
Check MAIN B’D
R848 12V ?
Replace POWER B’D
YES
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