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Old 04-11-2013, 06:39 PM   #1
therapture
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Amp troubles

Marshall fx100. I know its shit but its all I got. Didn't give me any trouble before. I sit, turn it on, and immediately an incredibly loud squeal. Turned all the knobs down and still, he second I turn it on my ears bleed. What the **** happened?
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Old 04-11-2013, 06:52 PM   #2
jthm_guitarist
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Are you using a speaker cable? Also try vacuuming/blowing compressed air into the fan on the back.
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Old 04-11-2013, 06:54 PM   #3
therapture
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Yes, like I said it had been working until today.
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Old 04-11-2013, 07:13 PM   #4
ne14t
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So even when you turn all the gain down, but have the volume up the amp starts feeding back?
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Old 04-11-2013, 07:23 PM   #5
therapture
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Yeah
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Old 04-11-2013, 07:29 PM   #6
therapture
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Now its working again?! I'm so confused....
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Old 04-11-2013, 07:32 PM   #7
Lavatain
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Did you check to see if your cables were loose? Or if they have some bad connections that was possible connecting the hot and ground connections together for whatever reason.
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