Read Sharp TU-37GD1E (serv.man8) Service Manual online
48
TU-32GD1E
TU-37GD1E
TU-37GD1E
TROUBLE SHOOTING TABLE
(Continued)
Is the power 3.3V input to Pin (3) of P5003?
Is the so
ck
et of P5
1
0
2
inserte
d
?
YES
YES
YES
YES
YES
OK
Is the power
1
.5V output to Pin (3) of
IC
500
4
?
Is
v
o
lt
ag
e of
R
5
1
0
1
/5
1
0
2
3.3V?
Is
v
o
lt
ag
e of Pin (3) of
S
500
1
3.3V?
C
he
ck
th
a
t so
ld
er of the I
C
5003 3
2
MB
fla
sh
m
e
m
or
y
is not wet.
R
ep
la
c
e the f
la
sh or re
-up
g
ra
d
e
v
ersion of
the soft.
C
he
ck
whi
c
h is the
c
a
use
, the P
C
P
W
B
or
M
a
in P
W
B
.
(D
is
c
onne
c
t P5
1
0
2
/5
1
03
a
n
d
c
he
ck
im
pe
d
a
n
c
e of
G
n
d
-3.3V is
a
b
out
8
.9
k
Ω
)
R
einsert the so
ck
et.
T
he power
R
e
g
I
C
5003
m
a
y
b
e
d
a
m
ag
e
d
or I
C
500
1
/5
2
0
1
m
a
y
b
e
d
efe
c
ti
v
e.
(I
m
pe
d
a
n
c
e of
G
n
d
-1
.5V is
a
b
out
7
00
Ω
)
T
he so
ld
er
b
ri
d
g
e
a
t P5
1
0
2
or
d
efe
c
t of
IC
500
1
m
a
y
b
e o
cc
urrin
g
.
(I
m
pe
d
a
n
c
e of
G
n
d
-1
.5V is
a
b
out
1
9
.5
k
Ω
)
R
5
1
0
2
is
d
efe
c
ti
v
e.
R
ep
a
ir the
c
orrespon
d
in
g
p
la
c
es.
N
O
N
O
N
O
N
O
N
O
N
G
1
E
spe
c
iall
y,
c
he
ck
th
a
t Pins
(1
)(
2
4
)(
2
5)(
4
8
)
is not wet.
S
ee
F
ig
ure
4
.3.
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