Hey guys. I recently got a pair of EMG DC-40 installed, the old ones that should be soldered. I used this diagram [Invalid or Expired Link Removed] and everything's soldered just as on the diagram (double checked), but neither volumes nor tones work. I get the sound from the pickups, but pots just don't seem to change anything at all. What could it be?
Enjoy the benefits of a premium membership!
Upgrade Account
-
TalkBass has been independent since 1998. Add your voice.
Create a free account to reply to discussions, view embedded media, and browse with fewer display ads.
Join free Log in
Want zero display ads or expanded classifieds tools? Compare plans.
EMG wiring help
- Thread starter Nihujasebe
- Start date
Because that diagram shows the pickups to be wired to ground, shorting any signal they have.
I think line6man should have a diagram
I think line6man should have a diagram
If the pots are having little effect on the signal, it's possible that their values are too high for the low output impedance of the pickups.
What value pots and caps did you use?
Do they work when rolled all the way down?
What value pots and caps did you use?
Do they work when rolled all the way down?
?
It looks fine to me, and the OP has stated that he gets sound from the pickups.
- Aug 21, 2008
- 10,386
- 252
- 68
- Disclosures
- Owner, SGD Music Products
That diagram is right. Don't forget the pickups have coax shielded cables. The shields are solder to ground, not the center conductor.
My guess is that the pots are not grounded. That would stop them from working.
My guess is that the pots are not grounded. That would stop them from working.
Why does the capacitor go from the tone pot to the volume pot? Don't shoot me, I'm just asking a question.....
- Aug 21, 2008
- 10,386
- 252
- 68
- Disclosures
- Owner, SGD Music Products
It's just a way to save using an extra wire. The other way to wire a tone pot is to run a wire from the volume pot, and then solder one end of the cap to ground, and the other end to the pot's lug.
All the pots, wires and stuff i used came in the package with p-ups, so i guess they're ok. And no, they don't work even rolled down. Btw, the sound i get has little highs, like the tones are completely off.
- Aug 21, 2008
- 10,386
- 252
- 68
- Disclosures
- Owner, SGD Music Products
Yes, they are. In fact it's really confusing. Btw, if i solder pups conductor straight to the output jack skipping all the pots, will it work, just in case?
that diagram is correct, so if yours don't work, then by definition you didn't solder it "just as on the diagram".
can you post pictures? that would help us pinpoint what's wrong.
- Aug 21, 2008
- 10,386
- 252
- 68
- Disclosures
- Owner, SGD Music Products
Are you getting sound now and the pots don't work, or you aren't getting sound?
Yes, I'm getting sound, and pots don't work. The sound is like the tone's rolled off all the way down.
- Aug 21, 2008
- 10,386
- 252
- 68
- Disclosures
- Owner, SGD Music Products
It sounds like the tone pot is shorting to ground. This sometimes happens if the control cavity is lined with shielding foil or paint, and the control has rotated and touched the shielding.
The volume control not working means that its ground is not attached, or that it's wired wrong.
Something is not wired correctly, or there are shorts.
If you unscrew the pick guard and lift it up, do the control work?
The ground on the volume is soldered okay. I tried to lift the pots up, but still they won't work. Although when i put em back, i noticed slight volume change, if i roll the volume about 20% off.
- Aug 21, 2008
- 10,386
- 252
- 68
- Disclosures
- Owner, SGD Music Products
Well, the process took just a few seconds, but since i used an old soviet iron (fail, i know), i could have. How do i check?
