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Topics - callanbrown

#1
The Newcomer's Forum / Crate G80XL fading out
January 28, 2010, 07:29:23 PM
Hi guys!

Picked up this Crate amp the other day. Seemed to be working but the sound fades to nothing. Occasionally it'll be fine for like 10 minutes, the do nothing for a few minutes, then come back to life. I also noticed that pressing in the channel select button, then pressing it again, the channel doesn't change quickly, it takes 30 seconds to a minute for B's LED to turn off and A's LED to turn back on.

I noticed that by turning up the reverb, then disconnecting and reconnecting one of the plugs to the reverb box the sound will return, however I'm fairly certain the reverb box isn't the problem.

I took a look at the electronics and it's definitely been repaired before. There is a section that looks burned (and was repaired). I tried reflowing some of the iffy looking solder points around that area but it didn't fix the problem.

This all seems to point to transistor or capacitor problems, would I be correct?