Teach me to diagnose guitar electronics with a multimeter

[AlexCarlson]

...or, point me to a good place to read up on it.

I have a working grasp of practical electronics from my time as a motorcycle mechanic, but I'm by no means an expert. But I'm more than capable of poking at stuff with multimeter leads and reading values!

Here's why I ask: I just picked up a Kay Vanguard 3 pickup as a project, and while all the wiring looks nice (quite impressively tidy hand-wired stuff - I'll post a picture), only a couple pickups seems to work, so I need to isolate the problem. It has a 4-way rotary switch (pickups 1, 2, 3 and All, I'm assuming, based on my experience with 3 pickup Harmonies) along with volume and tone for each of the 3 (big single coil) pickups.

There's a fair amount of stuff under the pickguard to go wrong on this thing, so if this isn't necessarily something that can be explained on the 'net and I need to spend some time reading, I'm all ears on sources of knowledge.

[Don Mare]

http://www.youtube.com/results?searc...11l874l6.3l9l0

so much to learn so little time.. best of luck... fun stuff though