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
PREV: LG 47SL8000-ZB / 47SL8500-ZA (CHASSIS:LD91K) Service Manual

LG 55SL80YD-AA (CHASSIS:LB91T) Service Manual ▷ View online

Making 
Revision
2009. 2 . 1
8/25
LCD TV
Symptom
Component2 No Video/ 
No Color Problem
Check Signal format
Revision 
No Color Problem
g
Is it supported?
Check the Component Cable
YES
MAIN B’D JK402 Check
Replace MAIN B’D JK402
YES
NO
Check MAIN B’D R422
Video Signal ?
NO
YES
Check MAIN B’D C214, C209 (Y)
C215 (Pb)
C216 (Pr)
Video Signal ?
Replace
MAIN B’D C214 or C209 or C215 or C216
NO
Video Signal ?
Replace MAIN B’D IC 100
YES
Making 
Revision
2009. 2 . 1
9/25
LCD TV
Symptom
RGB No Video Problem
Check Signal format
d
Revision 
Is it supported?
Check the RGB Cable
YES
MAIN B’D JK405 Check
Replace MAIN B’D JK405
YES
NO
MAIN B’D JK405 Pin #2
Video signal ?
R446 has Vsync ?
R447 h  H
 ?
NO
NO
YES
Ch k MAIN B’D C207 (Vid )
R447 has Hsync ?
Check MAIN B’D C207 (Video)
R2030 (HSYNC)
R2031 (VSYNC)
Replace
MAIN B’D C207 or R2030 or R2031
NO
YES
Replace MAIN B’D IC 100
Making 
Revision
2009. 2 . 1
10/25
LCD TV
Symptom
RGB No Color Problem
Check Signal format
Is it supported?
Revision 
Is it supported?
Check the RGB Cable
YES
MAIN B’D JK405 Check
Replace MAIN B’D JK405
YES
NO
NO
MAIN B’D JK405
Pin #3 (BLUE)
Pin #2 (GREEN)
Pin #1 (RED)
YES
Check MAIN B’D C2016 (RED)
C2017 (GREEN)
(
)
Video signal ?
C2017 (GREEN)
C2018 (BLUE)
Video Signal ?
Replace
MAIN B’D C2016 or C2017 or C2018
NO
YES
Replace MAIN B’D IC 100
Making 
Revision
2009. 2 . 1
11/25
LCD TV
Symptom
HDMI 1~4 All No Video Problem
Revision 
Check Signal format
Is it supported?
YES
Check the HDMI Cable
YES
Check the ADJUST MENU
Download EDID
(R f  t  Adj t
t S
)
EDID OK ?
YES
(Refer to Adjustment Spec)
NO
Replace
Replace MAIN B’D IC 100
NO
MAIN B’D IC601 (HDCP KEY)
Replace MAIN B D IC 100
Page of 66
Display

Click on the first or last page to see other 55SL80YD-AA (CHASSIS:LB91T) service manuals if exist.

RANDOM: