MAC 4100 Left Channel Issue After Relay Replacement

[Kralcster]

My MAC 4100 has a problem with the left channel (low power, static) on the left channel from time to time. If I tap the relay, it improves. I cleaned the old relay, and it seemed to help, but then back to the old problems. Today I installed a new relay and it worked well for a few hours but now has the same issue. A firm tap and it works fine again. Big increase in volume also seems to help. Still sounds like a bad relay issue from what I undertsand

Anyone have any advice as to what I am missing?

 

[KentTeffeteller]

Go on the McIntosh forums here, and see what dewickt and others have to say about this issue, they're helpful!

 

[avionic]

A firm tap and it works fine again. Big increase in volume also seems to help. Still sounds like a bad relay issue from what I undertsand

Cold solder connections are also not out of the question.