DMTech DML-4120S, Руководство по обслуживанию

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5-4
5-3-2 No Sound (DML-4120SD)
Check Pin
73,78(TV),Pin14,15(Video
2),Pin9,10(Video1) of
QS02
No Check Tuner,VCR
Cable.
Yes
Check Pin 39,40 of QS02.
No Check QS02 and
related circuit of QS02.
Yes
Does proper DC 15V
appere at Pin 6,15 of
Q606?
No
Check L601,L602.
Yes
Check Pin 2,5,16,19 of
Q606.
No
Check Q606 and
related circuit of Q606.
Yes
Check Pin 9,8 of Q606.
No
Check Q610 and
related circuit of
QM61.
Yes
Check Speaker,P606.
Yes
Check Pin 9,8 of Q606.
No
Check Q610 and
related circuit of
QM61.
Yes
Check Speaker,P606.