halve of the board is charcoalYes I know, i scrubbed with sandpaper and cleaned it 5 times with an oven cleaner, there is no residue left, just soot.
The print is good to go.
There was also a lot of the burnt capacitor on the main board, and this has also been cleaned with oven cleaner.
Sure looks like it. I'd be a little leary applying 220-240 volts to it.halve of the board is charcoal
halve of the board is charcoal
Sure looks like it. I'd be a little leary applying 220-240 volts to it.
The two B-6's in my signature were picked up off of the bay as "parts/repair" . Each one had a burned up channel.
Here is the debris field of one of them.
and the other..
I may have maybe $300 tied up in the two.
That could be .It may look worse on the pictures than it is
Likely shorted speaker wires or lack of ventilation.perhaps misuse
Likely shorted speaker wires or lack of ventilation.
I did replace the four OEM bumper feet with these 3M bumpers to get a little more height off of the resting surface.
https://www.mouser.com/ProductDetail/3M-Electronic-Specialty/SJ-5003-GRAY?qs=sGAEpiMZZMs6x5FGDTpfsAVq%2bWJOTwqsN4o7cDviM5o=
Definitely will solve that issue. Those silicone rubber bumpers don't slide.if you press the power button you push the amp backwards that is also right solved
I have repaired M-60's,65's,80's and 85's that were similar in the number of components destroyed when the amplifiers "Chernobyl'd".I have also repaired some M-60 amplifiers and I noticed that the same channel was always defective and the "auto class a" was burned.
What type of material did you use for the base? I've been using garolite.
I've been using garolite