#1
Hi all,

I installed pickups that had previously worked in a different guitar into a fresh one. After getting everything wired into place, there's no sound from the neck. So digging around, I found this thread where Cord advises to hold a multimeter to the tip and ground of a lead. So trying this, I get 0 Ohms ( or close enough, about 2, and I get a good healthy 8.5K from the bridge pup, so the multimeter's working). Now, my research indicates that the coils are shorted, HOWEVER before I stuck the pickups in, I tested the ground and live wires from the pickup, and got the expected 8.8K or so.

So I don't think it's the pickup that's the problem. Does anyone have and ideas on what could be the problem?

Cheers!
#2
You probably fried a pot, or have a broken connection somewhere between the pickups and the jack. Wire the pickups straight to the output jack and see if that gives you full output.
#3
OK so had a further look. It's a braided wire pickup. So poked around inside and saw the braid was touching the lug where hot is wired to, so I moved it a tried again, now I'm getting a reading of 0.7 K Ohms, so it's 1/10 of what it should be. I think the pot's ok. I was reusing old pots, but checked they were reading 500K before using, and they were fine.

Stranger and stranger!
#4
What about after installation, though? If you hold an iron on them too long you can lift the inner contacts right off.

This really sounds like a short somewhere in the line, keep looking. I'd unsolder the pots and check them again.
#5
I think that's the way I'll have to go alright! Well cheers for the help!

I'm thinking in order of likelihood:
1. Volume pot is the problem (checked the tone pot just now, it's good)
2. Loose connection / bad joint in the circuit somewhere
3. Humbucker itself
#6
Right, looks like it was a shoddy wire somewhere.

I unsoldered the pickup, and got 8.5k between the braid and inner wire.
I then took everything off the volume pot, got 500K across the outside lugs, and a nice 0 - 500K sweep across the centre and outside lugs when turning the dial. Still curious, I held the pickup wire to a lead plugged into my amp, and perfect sound.

So we know it's not the pickup or pot, so I guess that leaves a bad wire somewhere. Back to soldering I go! Feels better now knowing what the problem is!

Thanks again for all the help Roc!
#8
For future reference, pickups practically never fail shorted. If they fail at all, they will become open.

While it is possible to damage a pot by excessive heat, you have go be pretty rough with or.

99% of non-working wiring jobs are the result of faulty wiring, not a bad part. In cases where it is a bad part, a worn-out switch is more likely to be the culprit.
#9
Cheers again for all the advice lads. I'll try to rewire it back tomorrow, and tackle the switch if that fails.

The great irony of this is I changed the baseplate on the bridge pickup with no problems, but it was the trusty neck one that failed.
#10
Right, so we're done! Turns out it was a bad cap on the tone pot.

After checking the switch for continuity to the live tip of the lead, I was happy enough that wasn't the issue. So I wired everything back into place with still no sound. Not trusting the shoddy job I did of wiring the cap to the tone pot many moons ago, I snipped the wire from the bridge to the tone pot, to get blissful sound! Job done. If I really miss the tone pot, I'll wire it back in with a new pot and cap, bit for now I'm happy with things.

Thanks again for all the help everyone!