Yes
Ch
a
n
g
e POWER bo
a
rd
No sound No picture
Ch
a
n
g
e
M
a
inbo
a
rd
No
Yes
Ch
a
n
g
e
U1
No
- 41 -
Chec
k
i
f
there is volt
ag
e
pressure in the J1
6
.
pin
7
/pin8
˄
5
V
˅ˈ
pin1
2
/pin13
˄
1
2V
˅
Chec
k
i
f
the volt
ag
e
pressure o
f
J1
6
Pin5 is hi
g
h
volt
ag
e pressure (More
th
a
n
2
.5
V
)
Chec
k
i
f
the volt
ag
e
pressure o
f
LD
2
3(1.
2V
),
U104(1.8
V
),
LD
22
(3.3
V
),
Yes
Ch
a
n
g
e UD9,U104 or UD8
No
