Check
(
F1
/
3A
)
for
12V
Power supply trouble
MANI
BOARD
FAULT
JUDGMENT
Turn
on
the
pow er
Che ck
pow er
supp ly
IR
ca n
'
t
tur n
on
TV
set
Cha ng e
F1
(
3A
)
Che ck
F1
whe the r
OK
F1
damaged
whe n
Turn
on
the
TV
set
Check
power
supply
net
(
U3
,
U4
)
following
F1
OK
Che ck
the
L E D
r e d
Check
th e
power
supply
and
commu
-
nication
of
U13
(
Flash
)
Check
power
supply
and
12C
of
U11
(
24C32
)
Y
1
)
Check
power
and
reset
signal
of
U10
(
CT
622
)
2
)
Check
Y1
working
normal
Che ck
the
IR
boa rd
OK
N
N
Y
Y
Y
N
8
