LG 49UB850T - Power Error; No Power

A. Video error
Color error
Standard Repair Process
Established
date
Revised date
4/16
LCD TV
Error
symptom
2013.01.31
Color
error
Revised
date
4/16
Colo
r
Y
※ Check
and replace
Link Cable
Y
Replace Main B/D
Colo
r
Check color by input
-External Input
COMPONENT
☞A6
Y
Replace module
Colo
r
☞ A7
error?
N
(V by one)
and contact
condition
N
Replace
Main
B/D
error?
Check error
-
COMPONENT
-AV
-HDMI
N
End
Replace
module
error?
color input
mode
Y
External device
/C bl
External Input/
Ct
Check
external
Rl Mi/T
B/D
Ch k T t tt
☞A8
/C
a
bl
e
normal
C
omponen
t
error
external
device and
cable
R
ep
l
ace
M
a
i
n
/T
-con
B/D
N
Request repair
Ch
ec
k
T
es
t
pa
tt
ern
Y
External device
Check external
N
for external
device/cable
External
device
/Cable
normal
HDMI
error
device and
cable
Replace Main/T-con B/D
4
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