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Aric, Technician
Category: Consumer Electronics
Satisfied Customers: 44914
Experience:  15+ years in the field. Owner of AV Installation, OEM and Repair company
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Have Sansui AU505 amplifier. one output channel make "buzzing"

Customer Question

Have Sansui AU505 amplifier. one output channel make "buzzing" noise.
Submitted: 2 years ago.
Category: Consumer Electronics
Expert:  Aric replied 2 years ago.
Hello and sorry you're having problems. Offhand, can you please tell me if there is an audio signal in the offending output channel? Or is the buzz the only signal present in this channel? Also does the buzz sound raise and lower with the volume control?
Customer: replied 2 years ago.
There is still audio and the buzz does raise and lower
Expert:  Aric replied 2 years ago.
Thank you for the reply. This is either caused by an out of spec filter cap (least likely as it would also be in the other channel), or the output transistor is failed. Are you looking to do this work yourself, or looking for a repair estimate and service locator?