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FDP Forum / Fender Guitars: Telecasters / Tele switch or pup problem.

BbendFender
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American Patriot

I'm on guard these days.
Jul 19th, 2016 02:04 PM   Edit   Profile   Print Topic   Search Topic

I'm certainly not new to working on guitars but I'll throw this out to see what some might think.
My latest Tele sounds good on the bridge position and neck position but in the middle position the volume drops off and it is very thin. Everything is wired correctly. I switched out the pups this morning thinking that was the problem but with some Fender Vintage Tele pups in it, it still has the same problem. Pots are 250K CTS dated 1989 and the 3 position switch is a typical 1452. I don't see any visual problem with the switch but I suspect that is the problem. I'll wait for some suggestions before I tear into it again.

Peegoo
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Eat. Sleep. Guitar.

Repeat
Jul 19th, 2016 02:21 PM   Edit   Profile   Print Topic   Search Topic

If there is shielding in the cavity, sometimes the shield can work loose and make contact with the solder tabs on the bottom of the switch.

Since you swapped out the pickups you know it has to be an existing wire or the switch.

The pots wouldn't cause this symptom unless you have some non-standard voodoo like a split pot or blend control.

Pinetree
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NW Pennsylvania

Jul 19th, 2016 02:29 PM   Edit   Profile   Print Topic   Search Topic

Sometimes I'll take a piece of electrical tape and put it over the switch contacts where it might hit the (shielded) cavity.



Peegoo
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Repeat
Jul 19th, 2016 03:11 PM   Edit   Profile   Print Topic   Search Topic

Great tip to troubleshoot this problem, Pinetree.

Hammond101
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So. Cal. USA

Jul 19th, 2016 03:40 PM   Edit   Profile   Print Topic   Search Topic

I'd almost bet one of the pickups has the polarity reversed. Swap the wires between ground and hot for the neck PU and let me know what happens. I've seen this one before.

BbendFender
Contributing Member
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American Patriot

I'm on guard these days.
Jul 19th, 2016 04:10 PM   Edit   Profile   Print Topic   Search Topic

I'll give these ideas a try. I just woke from my afternoon nap.

Peegoo
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Eat. Sleep. Guitar.

Repeat
Jul 19th, 2016 04:15 PM   Edit   Profile   Print Topic   Search Topic

Oh...so this is not a problem that cropped up in a guitar that was working A-okay until now?

Yeah, pickup phase!

If this is the issue, it's a good idea to flip the shield (nickel cover) connection from the black ground wire to the other one (yellow, red, blue...depending on the pickup you have there.

If you simply reverse the lead connections, the cover is now on the hot side and it will be quite noisy in operation.

(This message was last edited by Peegoo at 06:18 PM, Jul 19th, 2016)

BbendFender
Contributing Member
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American Patriot

I'm on guard these days.
Jul 19th, 2016 04:20 PM   Edit   Profile   Print Topic   Search Topic

The guitar has always had this problem since I bought it. This is the Tele that I bought at the Mexican restaurant.
No noise when in the bridge only or neck only position. In the "middle" position it just sounds very thin and not at all like it should sound.

Pinetree
Moderator Emeritus
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NW Pennsylvania

Jul 19th, 2016 05:01 PM   Edit   Profile   Print Topic   Search Topic

Sounds like a phase issue.



BbendFender
Contributing Member
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American Patriot

I'm on guard these days.
Jul 19th, 2016 06:39 PM   Edit   Profile   Print Topic   Search Topic

It was a phase problem. One thing, the switch was in backward but I don't think it really matters which way it is mounted if your wires are in the right location. I just switched the neck pickup wires and it was good after that.
Thanks everybody.

BbendFender
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American Patriot

I'm on guard these days.
Jul 19th, 2016 06:39 PM   Edit   Profile   Print Topic   Search Topic

Double post.

(This message was last edited by BbendFender at 08:39 PM, Jul 19th, 2016)

stratcowboy
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USA/Taos, NM

Jul 19th, 2016 09:32 PM   Edit   Profile   Print Topic   Search Topic

Bingo! Very cool.

Hammond101
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So. Cal. USA

Jul 20th, 2016 09:18 AM   Edit   Profile   Print Topic   Search Topic

Yahooooo! Many Tele PUs, neck in particular seem to be wired in reverse. A Seymour Duncan thing? I've seen Fenders this way. I've run into this before. The key to noticing it is the huge volume drop in the middle position with the thin tone. You described it perfectly Bbend.

FDP Forum / Fender Guitars: Telecasters / Tele switch or pup problem.




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