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Troubleshooting
5-4 No Sound (Video OK)
5-5 Power OFF/ON (Repeatedly)
5-4
No
CHECK IC701
Pin 3,5
Yes
No
CHECK IC701
Pin 15,18
Yes
CHECK IC601 Pin
No
2
14 15
1
Sound output
Yes
CHECK/REPLACE
A/V Front Assembly.
NO
CHECK Q403
COLLECTOR H-PULSE
YES
NO
CHE CK IC901
PIN26(H-SYNC )
YES
CHE CK IC301
YES
PIN7(V-BLANK)
NO
NO
CHECK PIN6(+16.5V)
PIN1(-14V)
YES
CHECK/RE PLACE
IC301,IC201
CHECK/REPLACE
Sound Module (MD701)
CHECK/REPLACE
IC701, C712, C719
CHECK/REPLACE
IC601, R601, R602
SEE " NO-POWER"
CHE CK/REPLACE
IC901,Q907,C913
DZ402
CHE CK/REPLACE
Q301,Q302,D304
CHE CK/REPLACE
R409,R413,D407,D410
DZ302,DZ303
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