Radio is coming through the PUs on my Deluxe at times

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hlrowe
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Radio is coming through the PUs on my Deluxe at times

Post by hlrowe » Fri Sep 20, 2019 8:12 pm

I've been using the mag pickups exclusively. My tone pot is noisy when I touch it (no grounds are loose that I can see) and it doesn't work at all. Deoxit was no help. Not getting any acoustic tones from the Fishman either using the toggle. Occasionally, I am getting what sounds like short wave radio through my Bose L1 when it's plugged in. Very random. It must depend on what drives by or more likely, flies by. Talk about microphonic! I think I'm going to strip everything out and put in the Graphtech Ghost system this Fall along with new pots. No sense trying to repair the old electronics at this stage, even if I could get parts.

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vjmanzo
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Re: Radio is coming through the PUs on my Deluxe at times

Post by vjmanzo » Fri Sep 20, 2019 11:44 pm

Ugh oh—definitely sounds like the Fishman Powerchip is the problem. :| However, I’m sure someone somewhere would be willing to pay good money for that “radio-microphonic” feature! :lol:

The Graphtech Ghost system is nice; do you think you’ll use the Graphtech saddles too?

I’ve had to swap a few pots on my “Refined” Flys through the years, so I think what you’re saying about stripping everything out makes sense; USM used off-the-shelf switches and pots on Flys when they took the helm, and they do tend to fail and bleed.
Fly Mojo '05, Fly Deluxe '07 w/Sustainiac, Fly Mojo '08 w/Sustainiac, Fly Concert '97, Fly Classic '03, Fly Deluxe '97, Fly Artist '10, Fly Deluxe Redwood '93, Fly Bass FB-4 '03, NiteFly NFV3 '97, Fly Mojo 12-string ‘11, Fly Concert ' 98, Fly Maple Custom '01, Fly Nylon '99, Fly Stealth '00 info

hlrowe
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Re: Radio is coming through the PUs on my Deluxe at times

Post by hlrowe » Sat Sep 21, 2019 10:52 am

Yes, a new project for the innovation lab. A radio transmitter :lol:

I hadn't thought about using the Fishman saddles? It would be nice to keep them. Saves me a bunch of labor and the Graphtech Ghost saddles cost $124.95. Could i just hook them to the Graphtech PE-5017-00 summing board? It costs $4.30. Worth a try. I need to go back in there and see how everything is wired and make sure nothing is loose. I'm pretty sure the preamp board is bad like you mentioned. My Fly will actually start squealing occasionally while plugged in sitting on the stand with everything on. My best guest is radio interference from whatever?

Do you remember what pots you used/ordered? For the push-pull I've seen a Dimarzio 500K at many places. My volume pots all work but might as well swap them out and go with new. Same with the toggles. I'm thinking standard CTS short shafts that are solid.

I'll do a step-by-step with images when I do the project and create a PDF for the community. Including links and pricing.

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vjmanzo
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Re: Radio is coming through the PUs on my Deluxe at times

Post by vjmanzo » Sat Sep 21, 2019 11:04 am

Fantastic! It will be great to have that documented; thanks in advance!

I recall some people on the old forum mentioning that wiring the original saddles to the Graphtech summing board made the piezo sound a little noisy, but I’m not aware of any definitive verdict on that; it will definitely work using the existing saddles...that’s what I’d do! The saddles on ‘05 Flys were still made of the original material stainless steel; the later saddles were the ones made by Graphtech, which are not made of stainless steel.

I have the pot and switch values noted on the Anatomy of a Fly post, but I don’t have anything sourced. :cry: i’ll try to find some receipts for what I used. This is another area where your process documentation will be very helpful!!
Fly Mojo '05, Fly Deluxe '07 w/Sustainiac, Fly Mojo '08 w/Sustainiac, Fly Concert '97, Fly Classic '03, Fly Deluxe '97, Fly Artist '10, Fly Deluxe Redwood '93, Fly Bass FB-4 '03, NiteFly NFV3 '97, Fly Mojo 12-string ‘11, Fly Concert ' 98, Fly Maple Custom '01, Fly Nylon '99, Fly Stealth '00 info

Big Swifty
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Re: Radio is coming through the PUs on my Deluxe at times

Post by Big Swifty » Sun Sep 22, 2019 4:05 am

vjmanzo wrote:
Sat Sep 21, 2019 11:04 am

I have the pot and switch values noted on the Anatomy of a Fly post, but I don’t have anything sourced. :cry: i’ll try to find some receipts for what I used. This is another area where your process documentation will be very helpful!!
Don't know if it's of any help, but the original pots were Tocos America brand. Did a bit of research when the master pot failed on my pre refined once. I sent them a message, they could be ordered, minimum batch 1000 pieces.

I ended up sourcing a new one from forum member Marvin, so didn't pursue the Tocos enquiries, but they are theses i'm pretty sure:

https://tocos.com/products/potentiometers-7-mm-9-mm

Also found the following info on an old notepad from the time..

Parker FLy Master Pot
TOCOS
A10kX2
DCJ

Stereo 10k audio taper

TP96G00 25SK A103 A103
25mm long shaft,
Bushing diam 9mm
shaft diam 6mm

B.S.

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vjmanzo
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Re: Radio is coming through the PUs on my Deluxe at times

Post by vjmanzo » Sun Sep 22, 2019 8:52 am

Awesome, @Big Swifty! You're a legend! Great info—I’ll update the master parts list post with this info!
Fly Mojo '05, Fly Deluxe '07 w/Sustainiac, Fly Mojo '08 w/Sustainiac, Fly Concert '97, Fly Classic '03, Fly Deluxe '97, Fly Artist '10, Fly Deluxe Redwood '93, Fly Bass FB-4 '03, NiteFly NFV3 '97, Fly Mojo 12-string ‘11, Fly Concert ' 98, Fly Maple Custom '01, Fly Nylon '99, Fly Stealth '00 info

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Patzag
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Re: Radio is coming through the PUs on my Deluxe at times

Post by Patzag » Wed Oct 02, 2019 11:15 pm

Before you throw everything away ...
Grab a soldering iron and go over everything.
Sounds like a ground issue. Moving the wires with your hands means nothing. If you have a cold solder joint, you'll run into issues.
Resolder the piezo wires to the bridge plate.
Check all the pots with a soldering iron. Reheat and reflow.
That's what I would start with before decking the chip is dead.

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