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#1
10-13-2014, 04:29 PM
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Weird Sound in Amp All of a Sudden
Hi, I got a fender champion 20 to play with my fender MIM strat last month and today while I was practising I suddeny heard a sound for a couple of seconds as if steam letting off and after that every time I turn my amp on or off it keeps making a weird squeaky sound which lasts a few seconds. Please help.
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#2
10-13-2014, 04:47 PM
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Hi Iron Horse. Just to clarify, the sound only happens when you turn the amp on or off and it lasts a few seconds, correct? I'm guessing that would rule out the speaker.
Does it also make the sound if you have all the effects turned off? Basically, set the amp to a clean channel with no reverb/effects, turn it off and see if it still happens.
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#3
10-13-2014, 04:53 PM
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#4
10-13-2014, 04:56 PM
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What's the return policy on the amp? Many places have a 30 day return policy. After that you may have to deal with warranty.
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#5
10-13-2014, 05:01 PM
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#6
10-13-2014, 06:37 PM
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The downside of solid state/modeling amps right there (don't get me wrong, I enjoy my Mustang a lot) - when they go, they really go. So much complexity + PCB construction makes troubleshooting a real pain. Hope they replace it for you without a fuss.
__________________
"You don't have to be great to start, but you have to start to be great." -Zig Ziglar Acoustics 2013 Guild F30 Standard 2012 Yamaha LL16 2007 Seagull S12 1991 Yairi DY 50 Electrics Epiphone Les Paul Standard Fender Am. Standard Telecaster Gibson ES-335 Gibson Firebird
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#7
10-13-2014, 07:08 PM
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#8
10-14-2014, 09:12 AM
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#9
10-14-2014, 11:40 AM
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If the sound you're describing is an upward-moving "weet" sound, Fender has had several amps that did this- mostly when powering down. The M80 series often did this. The problem usually had to do with the power supply. The authorized cure was to change the values on a few filters in the supply.
As many of these amps are moving to surface mount technology, some of the companies would rather exchange the boards than pay a tech to troubleshoot them. A computerized assembler can build a board in less time than we can get them out of the cabinet!  Good Luck, Bill.
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#11
10-14-2014, 04:23 PM
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Today I went to the store and they offered a replacement after talking with Fender which I did not take and bought Yamaha THR10C instead. Practised for 4 hours straight with it an cannot believe how amazing it sounds!
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#13
10-16-2014, 08:43 AM
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