I have a B-52 Stealth Series LG100a guitar Amplifier . The amp. had a humming feed back problem. I opened up the head case and searched for any obvious trouble, loose wires, bad grounds, burn and over heat conditions potentiometers, switches and plugs. When I plugged in the guitar and turned on the amp, there was a low output of sound. I checked all connections and cables all was good. I tapped on everything and nothing seemed to be intermittent (everything worked before I opened up the head case.
I checked the resistance on all the switches,looked for any damage I may have done and everything looks okay.
I can find no schematics or forum help for this B-52 head model. This is a LG 100a which is solid state not a tube amp. I can find plenty of information for the B-52 Tube amp.
Can any one help me with this malfunction? I don't want to spend money on a service technician. I could fix this problem if I had the proper schematic and a suggestion on troubleshooting. I have no idea where to begin to find whats broke. No smells or obvious trouble that I have seen.
I am a retired F-16 electrician, I have a decent repair shop in my basement. I would really appreciate any help or advice.
e-mail [ electenv@yahoo.com ]
telephone [812-249-3823 ]
Thank You,
Dennis.
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