Is something wrong with my bass?
So the power goes off where I live a lot
I got a Carvin Fretless (b5f) few weeks ago and it has been producing a hum since then, it is properly shielded and I don't think I have a grounding issue, something went wrong with the bass?
how can I eliminate that hum? also, when I touch the strings or knobs, the hum almost goes away
It's normal. Your bass is fine.
Are you sure you didn't have the noise before?
Yes it's normal if the buzz goes away when you touch the strings.
Hum comes from the environment, mostly neons and screens.
The grounding makes it go away when you touch the strings.
so why is there hum? I can understand hum from a single coil but i'm getting hum on both coils together too
If the hum goes away when you touch the tuners, strings or bridge, it sounds like a grounding issue to me.
I'm certainly no expert, but I just wen through this.
Before you start tearing anything apart, try a different instrument cable first and go straight to your amp - I'm assuming that this hum only occurs with the bass.
If you have a Volt/Ohm meter, you can do a couple of quick continuity tests to see if maybe a solder joint for one of the ground wires may have broken off. Set the meter to read Ohms and take the control plate off the back of the bass. Place one lead of the meter on the bridge and then check all the ground (usually black wires) solder points on the back of the pots as well as the ground lug on the output jack.
If the meter doesn't read "zero" (0.0) or shows "Open", then you can start isolating backwards in smaller segments.
If you isolate just the bridge ground wire and get a bad reading, take the bridge off and check that the wire is still in place where it makes good contact with the bottom side of the bridge. A tip that I got here on TB was to put a piece of shielding tape on the bass body under the exposed bridge ground wire and also put another piece of shielding tape on the bottom side of the bridge - essentially making a shielding tape sandwich - where the bridge ground wire sits.
Best of luck.
I'm not sure if it was there before or not, I got the bass from abroad, I didn't notice the hum when I first plugged it in, I noticed it when I started recording something
Absolutely normal. Nothing to worry about. To eliminate, get humbucking J pickups (the BFL has J-style pups, yeah?), or just a better, quieter set of p'ups.
@Ack I'm not sure if i'll do this right so I'll just wait to find someone who knows something about these things, i don't want to poke around and screw something up
@punkjazzben , the hum on the distortion is so much, hard to believe it's normal, I've got HB Alnico Bridge Humbucker/J9A Alnico Neck Pickups though, sadly can't buy any pickups here, no shops to buy bass stuff in my country.
Take the bass and amp someplace else and see if you have the same thing to eliminate the environment and electricity at that location?
|All times are GMT -6. The time now is 03:01 PM.|
Powered by vBulletin® Version 3.6.12
Copyright ©2000 - 2013, Jelsoft Enterprises Ltd.