No picture or no
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in T
V
Ch
eck RF input
N
Exami
ne and
Re
pair RF
device
Y
Ch
eck T1/TDQ-3B8T
Pin5 fo
r 5V
Check
supply
nets
YN
Check T1 pin3
for
0V
Ch
ange
R2
67/0
¡
N
Y
Check T1 pin4,5
for
I
2
C data
Check I
2
C
net
(Connection
With U25/SM5964
16,17)
N
Y
Check input
signal
of
T1 pin 11
N
1.Check ne
t
between
f1 pin11
and u21 pin
24.25
2.Examine u21
supply
Y
Ch
eck T1 pin1
for
>1v?
Check cir
cuit
N
Y
1.Check L3
7 L38
inside T1
2.Change T1
23
