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Got a really beat-up Acoustic 150B. I really want to fix it up. Here's what happened with it.
- When I got it, the first channel didn't work at all and the second channel only worked with one of the two inputs and would be too quiet to use when the bright switch was turned on. The volume knob didn't work. Most of the potentiometers seemed to be functional according to my multimeter, but certain ones (such as the volume) made no change to the sound, even if they appeared to be working.
- Opened it up to try and fix the first channel. Saw that one red wire leading from the preamp strip to the power amp section was cut. Unplugged the amp, told my friend to plug in the soldering iron. He plugged in the amp too by accident, so the amp was unintentionally powered on when I tried to solder the wire together. There was a spark and the amp shut off. Left the wire un-connected.
- Tried turning on the amp to see if it was dead. It turned back on, so I plugged it into a cab and tried playing it. Everything seemed fine, and then the volume faded out and let out a tiny bit of steam.
- Checked the fuse. Fuse was blown, so I went to RadioShack to get a replacement. Put in a new fuse and the amp turned on. Amp could stay on for a long time without blowing a fuse. Amp now gets very hot very quickly (hotter than it should) and the input is audible, but there is a loud buzz that doesn't go away.
Is there any hope for this amp? It seems pretty messed up. I'm just hoping it's not FUBAR.
- When I got it, the first channel didn't work at all and the second channel only worked with one of the two inputs and would be too quiet to use when the bright switch was turned on. The volume knob didn't work. Most of the potentiometers seemed to be functional according to my multimeter, but certain ones (such as the volume) made no change to the sound, even if they appeared to be working.
- Opened it up to try and fix the first channel. Saw that one red wire leading from the preamp strip to the power amp section was cut. Unplugged the amp, told my friend to plug in the soldering iron. He plugged in the amp too by accident, so the amp was unintentionally powered on when I tried to solder the wire together. There was a spark and the amp shut off. Left the wire un-connected.
- Tried turning on the amp to see if it was dead. It turned back on, so I plugged it into a cab and tried playing it. Everything seemed fine, and then the volume faded out and let out a tiny bit of steam.
- Checked the fuse. Fuse was blown, so I went to RadioShack to get a replacement. Put in a new fuse and the amp turned on. Amp could stay on for a long time without blowing a fuse. Amp now gets very hot very quickly (hotter than it should) and the input is audible, but there is a loud buzz that doesn't go away.
Is there any hope for this amp? It seems pretty messed up. I'm just hoping it's not FUBAR.
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