diagram of acoustic guitar piezo pickup

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firubbi
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diagram of acoustic guitar piezo pickup

Post by firubbi »

http://www.mypicx.com/05162009/shadow_ovation_pickup/

i'd done a major problem with my guitar. there are 7 light wire is connected to the piezo pickup. and by mistake 4 of them got pull out when adjusting the strings height. i may solder them back but cant figure it which wire will go where. the seven wire are:

1.deep blue(ground i guess, it saparate from others) ok
2.white--pull out
3.black--pull out
4.light green ------ok
5.green----------ok
6.red --pull out
7.yellow--pull out

does anyone here know anything about this? or has anyone have a diagram of that?
its 1996 collectors edition--hex pickup -- made by shadow usa

http://www.ovationguitars.com/?fa=detail&mid=1238

thanks
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garyb
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Re: diagram of acoustic guitar piezo pickup

Post by garyb »

i think that only Shadow can help you. they will have the info, and they can make repairs, too....
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astroman
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Re: diagram of acoustic guitar piezo pickup

Post by astroman »

I don't know the details of this pickup, but he can probably help himself.
According to specs it has an individual piezo and preamp for ech string.
The sequence of solder points is probably like the sequence of strings.
Just pick one wire, solder it to a position and and if the expected string doesn't deliver a signal, then try the next position. Don't worry, no harm can happen.

cheers, Tom
(just in case you don't receive an answer from Shadow...) ;)
eric
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Re: diagram of acoustic guitar piezo pickup

Post by eric »

If you are methodical, you can do it quickly by trail and error. Theoretically there's a maximum of 10 solderings and 6 desolderings and a minimum of 4 solderings. You want to minimize the number of times you need to solder. Let the pickup cool down before each new attempt at soldering to prevent the buildup of heat. You don't want the heat to affect the bonding of the electrode to the quartz. Use a small tipped iron, flux cored solder and use flux paste to help the solder flow, this eliminates the need for "dabbing" the joint to make it smooth.

Solder one wire at a time and try the appropriate string until it's right, then repeat for each wire.

Hope this helps.

Eric.
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firubbi
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Re: diagram of acoustic guitar piezo pickup

Post by firubbi »

Thank you garyb, Tom, Eric :)
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garyb
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Re: diagram of acoustic guitar piezo pickup

Post by garyb »

that sounds like a good vise and a magnifying glass...
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