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View Full Version : A day wasted on pickup installation!


davefromtheattic
02-14-2007, 08:26 PM
let the saga begin!

I bought a calibrated set of Bare Knuckle "Nailbomb" pickups to install into my Les Paul and started fitting them this afternoon. I removed the original pickups and thought it would be a straight forward swap. How wrong I was!

When I hooked them up the bridge pickup didn't work. I wasn't paying full attention while doing it and touched the capacitor with the soldering iron. It was after I heard a pop that I realised my mistake.

Realising this I grabbed another cap and stuck it on. No joy. I'll bullet point my troubleshooting;

- swapped the bridge to the neck vol and tone and it worked.
- tried the capacitor from the neck on the bridge controls and still no joy.
- wired it up for the 2 vol, 1 tone config with cap from neck on tone pot. Still no joy.
- used a multimeter to check the bridge vol pot and, right enough, shows 0 when on full and off the scale when completely off.
- tapping the connections from the 3 way toggle to the pots proved that the switch wiring is ok.

It's all pointing toward the pot being dodgy, but it's worked fine since I bought the guitar.

I am well stuck, anyone got any ideas?

Satamax
02-14-2007, 08:43 PM
First, test the pickup. Atach the two wires to the dmm probes, and tap the polepieces with a screwdriver. If it goes up 40mv or so, it's working. Then hardwire the pickup in the guitar without the volume pot being in :D Anyway, who needs stinkin volume pot :D

Bye.

Max.

davefromtheattic
02-14-2007, 08:48 PM
I have tested both the pickups on the neck pots and they both work.

Satamax
02-14-2007, 08:53 PM
Well, simple, replace the volume pot by the tone pot, and leave the tone pot out of the circuit in the meantime, while you're waiting for a replacement. Well, see where i'm heading.

davefromtheattic
02-14-2007, 08:55 PM
yeah, i tried using the tone pot for vol in the 2 vol 1 tone config, still no luck.

David Schwab
02-15-2007, 08:09 PM
you might have over heated the pot. Time for a new one!

davefromtheattic
02-16-2007, 03:23 PM
is testing for that easy with a multimeter?

dumbassbob
02-18-2007, 10:15 PM
Also check the groundsUnless you were real careless your pots should be good too I bet its something simple