Help repairing Akai AM-M939

[avionic]

I did swap the output transistors from each channel to the other, the problem persists still on the R.

Try that again for the channel imbalance issue. As well as TR8 and 9 .

 

[avionic]

Have an idea that one of the transistors is causing your issue. Voltages all look good.Just not performing well.

 

[tallman5353]

Thanks, swapped 8 and 9 to the other sides and no cigar. I've also noticed some of the diode leads surrounding the transistors look rather corroded. Would replacing these have any impact?

 

[avionic]

Would replacing these have any impact?

Give it a shot. Diodes are cheap.

 

[DEANO222]

What happened ? Gees i hate that did you fix it or not ?

 

[tallman5353]

What happened ? Gees i hate that did you fix it or not ?

Unfortunately I'm still getting the lower volume in one channel.
I've put it on the to-do pile for now

 

[DEANO222]

Fair enough there's one on eBay at reasonable to high cost I'm just wondering if they're easy enough to fix . This one is supposedly in excellent condition.

 

[IMF_Pioneer]

Hi tallman,

What ended up happening to this amp ? do you still have it or did you send it to an auction house in Adelaide ?