No Sound-Picture Ok (Stereo Model); No Sound-Picture Ok (Monaural Model) - Sanyo AAI-A Series Training Manual

Trouble Shooting Chart
Startpoint symptom: No sound-picture OK
(Stereo model)
No sound-picture OK
(Stereo Model)
Select correct sound system
I
NG
I
TiiiG==
Yes Check Nicam decoder peripheral
No sound on Nicam broadcast
1
Yes
check AZ
stereo
decoder
No sound on A2 stereo broadcast
- peripheral circuit
I
IC1103, RI172, R1176, R1177
I
1
No sound on all of broadcasts
Check voltage on pin 15 of IC701
Y
Check voltage on pin 45 of IC701
F
IC101 , C132, R767, C718,
Q700, R706
D528, R526, C523, D527
I
4V-5V
t
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