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Topics - BobS

#1
The Newcomer's Forum / 1989 Fender Power Chorus
November 23, 2016, 09:55:58 AM
Hi!  I bought this amp back in the late 80's and played it loud--in a garage setting--frequently back then.  I put the guitar down for many years (wife, kid, house payment, etc) and recently got back into it.  When I dug the ole amp out, I--of course--had to clean all of the pots.  I also ended up having to replace 2 of the plastic input jacks.  While I was in there, I noticed that the 2 power diodes looked a little crispy around the edges (photos below).  Flipping the main board over, you can see where the traces are pretty burned up.

The amp still operates (a few of the pots are a little scratchy still...probably need another blast of cleaner).  I know this is probably an odd question to ask but in your collective opinion, what performance issues can I expect with the diodes and board looking the way they do?  Aside from the couple scratchy pots, there is an annoying hum thats new from when I played back in the day.  The hum volume increases and decreases with the volume control and is present on both channels even when the guitar isn't plugged in.  I was assuming it was a bad ground but with those traces burned up, I didn't know if that could be the cause of my trouble.  (I know heat can mess up conductors.)