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Amp Problem with my Guitar

When the amp is switched on and my guitar plugged in, there is no output noise either through the speaker or the headphone socket, though the On button glows red as usual. When I switch the amp off, there is about one second of amplified noise (such as a chosen guitar chord), then silence.

Has a component, such as the off/on switch, failed?

Is there an easy way for me to fix this problem?

Please help!

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  • Anonymous Jan 24, 2009

    does this happen with if the amp is hooked up to the mixer?

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Check to see if your cord is plugged into the instrument input and not another input such as a CD input as I have on My amp

Posted on May 11, 2010

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First off, if this is a tube amp, make sure the switch that says "standby" is flipped to the ON position. It is a no brainer, but you have no idea how many times i have come across people saying they cant get their amp to work and they have it on standby. If it is a tube amp, and you have both switches in the on position, then it could be any combinations of faulty tubes or just one faulty tube. If the amp is fairly new, contact the manufacturer and see if you can get some replacement tubes (i had a problem with my B52 AT100 head and i contacted B52 and they sent me a whole set of new tubes at no cost). After you replace and/or test tubes, if the problem still persists, there is something wrong with the wiring and it will need to be professionally repaired.

If your amp is not tube, then skip all that i said and skip right to the part about it being professionall repaired.

It could also be somethign as simple as you have a bad guitar cord, your guitar being bad, or both. Hope this helps.

Posted on Jan 16, 2009

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You suspect the power switch when you should have immediately dismissed it because the ON light is on, as it should be. The fact that it does in fact produce sound at all indicated that the amp is being powered on. There is a malfunction somewhere else in the amp, most likely a bad tube. If you have access to a tube tester, then by all means, have the tubes checked. You could check your guitar and cord with another amp to make sure that they are working OK. Beyond those simple things, it's my opinion that for you to open this amp and attempt repair, you would risk further damage.

it would be much cheaper and quicker for you to take the amp to a
qualified repair shop and pay the price for a competent repair.

Cheers!!!!

The dude

Posted on Aug 07, 2008

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