Thunder 1A Bass Active Circuit problem

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Thunder 1A Bass Active Circuit problem

Post by moncur on Sat Nov 19, 2011 7:33 am

Hi folks, this is my first post so please be gentle!

I just received my Thunder 1A bass from an ebay seller today, looks lovely, plays like butter etc etc.

However, when going from passive to active, I get no sound at all.
Naturally I changed the batteries as I figured the old ones must be dead, the ones I put into my new bass came from my other Thunder 1A which I was playing using the active circuit the other day, so the batteries in the new bass are good to go.

Anybody got any simple things that I should be looking for before I put it to my local Westone guru?

Cheers for reading this, Richard Smile

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Re: Thunder 1A Bass Active Circuit problem

Post by Westbone on Sun Nov 20, 2011 8:39 am

Get some switch cleaner down the switch(obviously) not WD 40.
Sometimes the components on the circuitboard get pushed against each other and short out.

At least you have another to compare with.

Welcome to the forums, any more infomation will require photos of your guitars,,,,, Smile

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Re: Thunder 1A Bass Active Circuit problem

Post by corsair on Sun Nov 20, 2011 1:09 pm

Westbone wrote:Welcome to the forums, any more information will require photos of your guitars,,,,, Smile

Yep... welcome! Now pix.... Laughing Laughing

I'm betting this will be a simple fix; just a matter of being slow and steady and eliminating one thing after another; we're here to help, man!!

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Re: Thunder 1A Bass Active Circuit problem

Post by moncur on Sun Nov 20, 2011 7:10 pm

heres the picture i took as soon as I received it, seems to weigh more than the other but im guessing it may be a different type of wood?



The only reason I dont want to play the other Bass is because I got Duff McKagan to sign it and I dont really want to be carrying that to gigs just incase it gets half-inched.

Hopefully it is something simple, will try the switch cleaner this week Smile

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Re: Thunder 1A Bass Active Circuit problem

Post by Westbone on Mon Nov 21, 2011 2:52 pm

Looks to be in very good nick, with a case. Smile

Let me guess 1982??

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Re: Thunder 1A Bass Active Circuit problem

Post by moncur on Tue Nov 22, 2011 3:10 am

Westbone wrote:Looks to be in very good nick, with a case. Smile

Let me guess 1982??

yup, was delighted that it came in the original case.

Will post a pic of the circuit board tonight and hopefully somebody can pick something out from it.

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Re: Thunder 1A Bass Active Circuit problem

Post by moncur on Tue Nov 22, 2011 3:19 pm

Got it fixed tonight Smile Turned out to be a broken connection in the battery terminal. a quick solder and she's back up and running Smile


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Re: Thunder 1A Bass Active Circuit problem

Post by Barry on Tue Nov 22, 2011 4:45 pm

cheers

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Re: Thunder 1A Bass Active Circuit problem

Post by Westbone on Tue Nov 22, 2011 6:14 pm

Success, the only movable wiring part. Smile

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Re: Thunder 1A Bass Active Circuit problem

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