Haier LE32F32200, Service Manual

Page: 40 / 53

Chec
k
i
f
there is +5
V
a
t Pin8 o
f
U
7
0
2
Chec
k
i
f
there is output
a
t Pi
n1
ǃ
Pin4 o
f
J1
7
No
No
Yes
Yes
Ch
a
n
g
e UD3
No sound but h
a
ve picture
Ch
a
n
g
e M
a
inbo
a
rd
S
till h
a
vin
g
p
roble
m
s
Chec
k
i
f
there is
sound input si
g
n
a
l
No
Chec
k
the input source
Yes
No
Ch
a
n
g
e LD5 LD
7
Chec
k
i
f
there is +1
2V
a
t Pin15
a
nd Pin
2
8 o
f
U
7
05
Chec
k
i
f
there is si
g
n
a
l
a
t C
7
10
a
nd C
7
45
No
chec
k
the si
g
n
a
l input
circuit o
f
C
7
10,C
7
45
Yes
Chec
k
i
f
there is input
a
t Pin3
ǃ
Pin1
2
o
f
UD3
Yes
Ch
a
n
g
e LD3
No
Chec
k
the
spe
ak
ers
S
ervice M
a
nu
a
l
Model No.:
- 40 -
LD8 LD9
Ch
a
n
g
e U
7
0
2