No Sound - Hitachi CPX2102MS Service Manual

8-3. No Sound(Picture OK)
Do the volume control in max before check this routine.
Check the signal waveform
to the pin 2 of Q501
Check the signal waveform
to the pin 15 of Q501
Check Q604
Check Voltage
at Q601 Pin 6
YES
YES
Q603
Q601
W661
38
QS02 Check
NO
PV05 Check
NO
Check Q501