January 19th, 2010 | 
Author: Now please, this really seems not to be a pickup or feedback problem. It almost certainly is a grounding/electricity problem. I need to confirm this. When i play, no guitar sound comes from the amp, just the loud buzz. It eases down when i remove my fingers from the strings or any other metal parts of the guitar but still no guitar sound. When i touch these parts its hummmmmmm…. Its really annoying.
You’ve got an open ground somewhere. It’s either:
– In the guitar cable itself
– In the guitar at the jack
– In the grounding wire from the bridge to the jack on the guitar
The easiest thing is to try a different cable (you have more than one, right).
If that doesn’t fix it, try a different guitar (you’ve got a buddy that plays, right).
If it’s in your guitar and you’re handy with a soldering iron, you can open up the control cavity and look for any wires that have come unsoldered.
If soldering is not your thing, take it to a guitar tech or repairman and have them go through it.
Good luck.
Greetings from Austin, TX
Ken
Posted in guitar amp
You’ve got an open ground somewhere. It’s either:
– In the guitar cable itself
– In the guitar at the jack
– In the grounding wire from the bridge to the jack on the guitar
The easiest thing is to try a different cable (you have more than one, right).
If that doesn’t fix it, try a different guitar (you’ve got a buddy that plays, right).
If it’s in your guitar and you’re handy with a soldering iron, you can open up the control cavity and look for any wires that have come unsoldered.
If soldering is not your thing, take it to a guitar tech or repairman and have them go through it.
Good luck.
Greetings from Austin, TX
Ken
References :
40 years of playing guitar and bass
30+ years of audio and broadcast engineering
Under the curcumstances this is what i would do:
I’d isolate the problem by testing each part individually, firstly try another lead. If theres still a problem, a different guitar and then a different amp (whilst plugging the guitar straight into the amp (no effects)). It should be pretty obvious what is faulty then.
If its the guitar then, simply take a look inside for any loose connections. Something similar happened to my friends guitar and the problem was a faulty pot. If all is good inside the guitar then that leaves the amp. I’d do the same as with the guitar(unplugged from mains is very important) but be careful not to damage anything as this could cause serious malfunction and could kill you. If problem still persists contact the manufacterer for repair of just get a new one.
References :
experience with guitar/amp faults/repairs