Mick b. 2010-03-16 17:25:16
I’ve just got hold of a P bass which has a very low output when compared to
my Jazz (the master volume on my amp needs to be raised from about 5 to
about 8 to keep the perceived SPL the same) and it also has a bit of a nasty
low-end hum. I’ve opened it up and compared it to a standard P bass wiring
diagram. There is nothing obviously wrong with the wiring, the earth makes
contact with the bridge and so on, so I would guess that the pickup is
dying. However, before I wrench it out and spend lots of money on a Seymour
Duncan or whatever, can anyone tell me how to completely bypass the controls
to check it’s not a dodgy pot or some other problem (the pots seem to work
fine by the way)? Is it as simple as soldering the pickup’s black lead to
the output and the white lead to ground? Is there anything else I can do to
confirm whether the pickup is actually failing or not?
Thanks in advance.
Michael 2010-03-16 17:25:43
Hello Mick, yes, you can do that to bypass the pots. How about the p/u’s
distance from the strings, about the same as your J? If you have a volt/ohm
meter, check the output and see if it’s around 11k ohms. Also, check each
coil, they should each be about 5.5k ohms. HTH
Chris berry 2010-03-16 17:26:04
Seymour Duncan Quarter Pounder.
Philippe kirsc 2010-03-16 17:26:07
I knew you were gonna say that 😉
Chris berry 2010-03-16 17:26:09
Going to be hitting Luxembourg this Thursday night (until Saturday night
prolly) if the weather’s good there might be some smoke in the garden.
Let me know if you can come.