Check the DC voltage on the points indicated A and B. Check all 4 diodes connected to those points.
When the amp is in operation, you should have ±45v there.
This is the full SM if you want it.
http://www.bcae1.com/temp/sony - XM-7547_Car Power Amplifier SM.pdf
When the amp is in operation, you should have ±45v there.
This is the full SM if you want it.
http://www.bcae1.com/temp/sony - XM-7547_Car Power Amplifier SM.pdf
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