Pioneer A-9 stuck in protection mode

krimney

Super Member
What do I do...where do I start. I got this from my brother, history unknown, power cord was in two pieces. Orion has it from 1981 , 800.00 MSRP and 110wpc.
 
You can start by getting it to someone and having
it checked out. Theres a whole number of things that
could push it into protect mode. It could be anything from
a problem in one of the amplifier stages “probably output”.
To the protection circuit itself not working right.
 
Well you gotta give us more information :D

Did it suddenly go on protection mode?

It could be many things. I've just finished repairing a SX-1980 that only had few bad caps in the protection circuit. That was sheer luck. Sometimes the cause can be an overload of some sort or perhaps an internal failure that's injecting DC in the output.
 
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