OBEL wiring/pick up help please.

OBEL wiring/pick up help please.

Postby tnt1234 » Sun Jun 12, 2016 11:05 am

So #2 twin got it's new cables from AO guitars, and I finally had a chance to plug in today.

first question that might indicate the problem:

- With OBEL switch on the AO wheel box, OBEL switch on on the guitar, OBEL circuit works correctly. If I disengage the OBEL switch on the guitar, I still get sound to the amp, but the effects loop is bypassed. Is this correct, or does this indicate a problem?

FYI - Obel off on the wheel, obel off on guitar, effects work, sound works. OBEL on on guitar, no sound at all - which makes sense to me.


- Guitar sounds microphonic. pickups just aren't sounding right - neither bridge nor neck. Microphonic, but quiet - like 3/4 volume.


Going to have time to open it up tomorrow night and just hoping someone can point me in the right direction...

(You know, I might just throw a fresh battery in right off the bat here....)
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Re: OBEL wiring/pick up help please.

Postby TI4-1009 » Sun Jun 12, 2016 3:01 pm

tnt1234 wrote: If I disengage the OBEL switch on the guitar, I still get sound to the amp, but the effects loop is bypassed. Is this correct, or does this indicate a problem?


That's pretty much the purpose of the "OnBoard Effects Loop"- to engage or disengage the effects loop with the flip of a switch.
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Re: OBEL wiring/pick up help please.

Postby tnt1234 » Mon Jun 13, 2016 6:27 pm

So, I opened it up, checked the grounds, don't see anything loose, or shorts.....

Changed the battery.

Something is still wrong....bridge in particular is about 60% volume.
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Re: OBEL wiring/pick up help please.

Postby tnt1234 » Mon Jun 13, 2016 7:09 pm

Found it....

Tabs under the tone pot were hitting the shielding....
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Re: OBEL wiring/pick up help please.

Postby TI4-1009 » Mon Jun 13, 2016 8:14 pm

Good work!
"Do not write so that you can be understood, write so that you cannot be misunderstood." -Epictetus

First show: 8/16/69 (Woodstock)
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