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FDP Forum / Amp Mods, Repairs, and Projects / Amp Buzz

pandorascamel

Canada

Apr 19th, 2012 09:07 PM   Edit   Profile   Print Topic   Search Topic

UPDATE - Solved - Thanks for looking!

Hi all,

new member, first post.

I have a Champion 110 that has a buzz that goes away if I touch any of the amp jacks.

grounding problem, right? Any suggestions on a permanent fix?

I'm a hobby guitarist and I know this is not much of an amp, but it sounds awesome and it's more then enough for me so any suggestions appreciated

(This message was last edited by pandorascamel at 06:26 PM, Apr 20th, 2012)

pdf64

UK

Apr 20th, 2012 04:20 AM   Edit   Profile   Print Topic   Search Topic

How much of a buzz? Only noticeable when you're not playing guitar, or can it be heard even when you are playing?
Is your guitar grounded? Buzz normally reduces when you touch the strings or amp metalwork.
Is your house line supply properly grounded?
Pete.

Hammond101
Contributing Member
*

So. Cal. USA

Apr 20th, 2012 09:45 AM   Edit   Profile   Print Topic   Search Topic

If the amp buzzes with nothing "plugged in" it may be a faulty shorting jack (input jack).

pandorascamel

Canada

Apr 20th, 2012 12:32 PM   Edit   Profile   Print Topic   Search Topic

Thanks for the replies!

The grounding in my jam space is good, and the problem persists when I bring the amp home. The buzz is only a problem when I'm not playing.

I think it may be a bad jack as sometimes I need to fiddle with the patch cord to get it to get the foot switch to work.

I'm going to try and find some replacement amp jacks and see if that helps.




Bubbalou
Contributing Member
**********

USA

THE LOW END OF UPPER TEJAS
Apr 20th, 2012 01:18 PM   Edit   Profile   Print Topic   Search Topic

what brand and model amp?

Peegoo
Contributing Member
**********
**********

That chicken

is WRONG, baby.
Apr 20th, 2012 02:52 PM   Edit   Profile   Print Topic   Search Topic

Fender Champion 110. In post #1 =0)


Could be due to a bad shorting jack on the inpot (you can test this with a meter). Could be due to an ungrounded shielded cable from the input jack to the first pre-amp stage...

Has it always done this? Or is this something that developed?

pandorascamel

Canada

Apr 20th, 2012 06:25 PM   Edit   Profile   Print Topic   Search Topic

Problem Solved!

I was at my local electronics store today looking to see if I could find replacement amp jacks and since they didn't have any I figured I'd try replacing the 3 prong wall plug and now the buzz is gone.

The amp was handed down to me and always had the buzz, I guess somewhere along the line before I got it the prong for the ground was snapped off and shoved back in.

Thanks for all the responses!

Bubbalou
Contributing Member
**********

USA

THE LOW END OF UPPER TEJAS
Apr 20th, 2012 08:55 PM   Edit   Profile   Print Topic   Search Topic

Nice Fix!

FDP Forum / Amp Mods, Repairs, and Projects / Amp Buzz




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