Well, i recently found a full 80's pioneer silver face hi-fi laying around. It all works apart from the amplifier. One of these:

A pioneer sa-740. This amplifier is one of those amps that had electronic input selection swiches unlike other amps that had those with the ''mechanical'' touch like my nad 3020.

Well, it's problem comes from here and, because this electronic system is more complex than the old school mechanical, i am really clueless on where is the godammned problem.
You turn it on, tape light comes on

But it's like the tape button was stuck, so when you select another input source

Unless you hold the input source button on, it will always return to tape mode

And there will be no sound what so ever. I think if you held the button long enough it would stay working but not for long.
Can anyone help me?

A pioneer sa-740. This amplifier is one of those amps that had electronic input selection swiches unlike other amps that had those with the ''mechanical'' touch like my nad 3020.

Well, it's problem comes from here and, because this electronic system is more complex than the old school mechanical, i am really clueless on where is the godammned problem.
You turn it on, tape light comes on

But it's like the tape button was stuck, so when you select another input source

Unless you hold the input source button on, it will always return to tape mode

And there will be no sound what so ever. I think if you held the button long enough it would stay working but not for long.
Can anyone help me?
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