MAXDATA BELINEA 101705, Руководство по обслуживанию

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Belinea 101705 (111723) Service Manual
-25-
4/22/2004
10.3. NO SOUND
Speaker
No
Sound
Check volume
control voltage on
I601 Pin6
Adjust OSD Volume
control to Max and
Check Pin6 Voltage
>0.02V
Check R619 has
PWM output ?
Yes
Change I601
TDA7496L
Check OSD MUTE
function was disable
if yes, Check
Q601,D601,C602 fail
or not
No
Check P601
connected or not
Check if Speaker is
OK ?
Yes
Yes Yes
Yes
Yes
No