LG El
e
c
t
r
on
ic
s
/DND QA
LG El
e
c
t
r
on
ic
s
/DND QA
LG El
e
c
t
r
on
ic
s
/DND QA
LG El
e
c
t
r
on
ic
s
/DND QA Gr
Gr
Gr
Gr
Check
Check
The blue spreads on the screen (Mis-discharge)
and power off in 2 ~ 3 seconds.
If you turn on again, it will be same problem.
Symptom
Causes
Countermeasure
If 15V line voltage reduces
below 14V,
Mis-discharge occurs and
power off because of
protection circuit.
Replace PSU
(Power Supply Unit)
and defective X-Board.
If when Power on, screen shows like above and turn off in 2 seconds, check if turning off or not by disconnecting
all X & Y boards.
Defective X-Board
