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Post subject: Vibro Champ XD issues
Posted: Fri Oct 13, 2017 3:44 pm
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Joined: Fri Oct 13, 2017 3:31 pm
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Diagnosing my amp (I did get it off Ebay but it was working when shipped), I have run out of things to try before taking it to a tech. I replaced and matched the 6V6 to the 12AXL with JJ's. I have tested the speaker, the speaker output, checked the fuse, and input jack. I have verifed the guitar and cord on another setup. Somewhere between the input jack and the output / line out jack something is failing. I don't really want to open up the head, I'll just take it to a tech, but has anyone experienced this on this or any other kind of tube amp ? This is my first post here, and I do have some knowledge with amplified electronics, but I also dislike actually doing it.

Thanks,

Jason


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Post subject: Re: Vibro Champ XD issues
Posted: Thu Oct 26, 2017 2:16 am
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Joined: Fri Feb 05, 2010 4:31 am
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Location: Province de Québec, Canada
What amp do ? Not working ? no sound ?


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Post subject: Re: Vibro Champ XD issues
Posted: Thu Oct 26, 2017 7:18 am
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Joined: Sun Jul 22, 2007 9:29 am
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As a wise technician said, check the power supply first. I think that was stratele52. That’s great advice. I counted 5 - internal fuses in the pwr supply Fender Vibro Champ XD schematic. You could check those? Interconnect cables, solder connections,,ect.,,,mute function.

Not claiming that’s the problem. I couldn’t tell you what’s the fault. People with direct experience might. You have to be a detective and analyze your measurement-clues to lead the way to the fault. Asking for help is always a great idea. Good luck jason. Try some measurements with a hand held Fluke-dvm if you can.


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