Sanyo LCD-26XR7, Руководство по обслуживанию

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19
3.3.no sound
Check if PIN2, 8,13 and
18 voltage of N405 is
normal?
Check power supply
Check PIN3 and
PIN7 output wave of
N405
Check PIN24 wave of
N404
Check PIN11 wave of
TUNER401
Check TUNER401 and
its periphery
Check N405 and its
periphery
Check NS4 and its
periphery
Check N404 and its
periphery
no
yes
no
yes
yes
yes
no
no