Go Back   TalkBass Forums > Bass Guitar Forums > Bass Guitar Forums > Pickups & Electronics [BG]
Register Rules/FAQ/CUP Members List Search Today's Posts Mark Forums Read



Supporting Membership
Thank You

Latest Supporting Member
Donate to Upgrade Today

Reply
 
Thread Tools Search this Thread
  #1  
Old 09-06-2012, 06:06 PM
lpcarter's Avatar
Registered User
 
Join Date: Jan 2012
Location: Minneapolis, MN
Supporting Member
Fralin sounds thin--troubleshooting

Just won a set of noise canceling fralins on eBay. Jazz. The bridge sounds like its running thru a filter..much quieter. Any ideas? Is the pup bad? Neck sounds great...
  #2  
Old 09-06-2012, 06:20 PM
Registered User
 
Join Date: Dec 2010
Location: Philadelphia, PA
It sounds like the two coils of the bridge pickup are wired out of phase. The previous owner possible tampered with them.
Open up both the neck and bridge pickups and inspect them side-by-side. Examine coil directions of both pickups, as well as the wiring between the coils of each. They should be identical. Hope that helps.
-P
__________________
Fender Precision & Jazz, Homemade Tube Pre-Amp
1000 Watt PA Power-Amp, Karlson Bass Cab. Cheers!
  #3  
Old 09-06-2012, 06:34 PM
lpcarter's Avatar
Registered User
 
Join Date: Jan 2012
Location: Minneapolis, MN
Supporting Member
Thank you. I'll post back on this as soon as i can
  #4  
Old 09-06-2012, 06:36 PM
Registered User
 
Join Date: Mar 2006
Location: Austin, TX
lpcarter,

Do you mean humbucking when you say noise canceling?

The easiest way to test for a phase issue is to reverse the leads on one of the two pickups. You will know instantly if that resolved it.

Does the bridge pickup act the same when solo'd? If so, it's not likely a phase issue. You will REALLY notice phase issues when both pickups are run full up and the tone is maxxed.

Bob
__________________
SBMM Ray35, Ibanez ATK300, Fender Modern Playa Jaguar, Squier VM Jazz V, Mesa Walkabout Scout
  #5  
Old 09-06-2012, 08:19 PM
lpcarter's Avatar
Registered User
 
Join Date: Jan 2012
Location: Minneapolis, MN
Supporting Member
It's a split coil jazz pup. Neck and bridge are wired the same way, it's only the bridge that's giving me problems. Here's a pic of the bridge pup.
  #6  
Old 09-06-2012, 08:33 PM
lpcarter's Avatar
Registered User
 
Join Date: Jan 2012
Location: Minneapolis, MN
Supporting Member
Ok so the pics may be hard to see. The wires match-- where the ground is, crossover etc. doesn't appear to be tampered with. Then my pots are the same, black to ground, white to hot
Attached Thumbnails
Click image for larger version

Name:	image-3807751307.jpg
Views:	26
Size:	473.0 KB
ID:	288039  Click image for larger version

Name:	image-3508391478.jpg
Views:	32
Size:	524.4 KB
ID:	288040  
  #7  
Old 09-07-2012, 09:25 AM
lpcarter's Avatar
Registered User
 
Join Date: Jan 2012
Location: Minneapolis, MN
Supporting Member
a buddy suggested that possibly it's a bad cap. the tone still functions, but possibly it's messing with the first pot?
  #8  
Old 09-07-2012, 03:23 PM
Registered User
 
Join Date: May 2012
Try wiring the pickup directly to the output jack. If it sounds good there's something wrong in the electronics, if not it's in the pickup.
  #9  
Old 09-07-2012, 07:15 PM
Registered User
 
Join Date: Mar 2006
Location: Austin, TX
you can do that or reverse the pickups to see if the problem stays in the same position or moves.
__________________
SBMM Ray35, Ibanez ATK300, Fender Modern Playa Jaguar, Squier VM Jazz V, Mesa Walkabout Scout
  #10  
Old 09-07-2012, 07:22 PM
lpcarter's Avatar
Registered User
 
Join Date: Jan 2012
Location: Minneapolis, MN
Supporting Member
Pup sounds the same straight into jack. Next i should try reversing the poles? Black and white wires?
  #11  
Old 09-07-2012, 07:23 PM
lpcarter's Avatar
Registered User
 
Join Date: Jan 2012
Location: Minneapolis, MN
Supporting Member
And by that I mean on pup. I tried reversing white and black on the pot, no change
  #12  
Old 09-07-2012, 09:18 PM
lpcarter's Avatar
Registered User
 
Join Date: Jan 2012
Location: Minneapolis, MN
Supporting Member
Ok so I tried switching everything on the pup itself. No change. The tone knob acts as volume to the pup, but as tone to the neck. Wiring IS correct. Any clues? I may have to send me back, mega bummer.
  #13  
Old 09-08-2012, 10:26 AM
Registered User
 
Join Date: Mar 2006
Location: Austin, TX
Based on your last updates, it sounds like there is something wrong with that pickup.

I would return it.

Bob
__________________
SBMM Ray35, Ibanez ATK300, Fender Modern Playa Jaguar, Squier VM Jazz V, Mesa Walkabout Scout
  #14  
Old 12-28-2012, 05:45 AM
lpcarter's Avatar
Registered User
 
Join Date: Jan 2012
Location: Minneapolis, MN
Supporting Member
If anyone is happening to search this topic--Bob was right. The pickup ended having a broken magnetic wire. I sent it back to Lindy, he simply unwound the pickup a few hundred rotations (negligible) and boom! All was well.
  #15  
Old 12-28-2012, 11:14 AM
SGD Lutherie's Avatar
David Schwab

Owner, SGD Music Products
 
Join Date: Aug 2008
Location: Bloomfield, NJ
Send a message via AIM to SGD Lutherie Send a message via Yahoo to SGD Lutherie
Supporting Member
A broken coil usually ends up sounding thing and scratchy. The reason you still get sound is the windings are capacitively coupled, so in affect, you are playing though a small value cap, which removes the low frequencies.

A split coil can't be out-of-phase with itself because none of the strings pass over both coils.
__________________
SGD Lutherie Hand crafted pickups and electronics.

SGD Lutherie on: MySpace YouTube Facebook

Ibanez Club #389 | Hartke Club #302 | Team Trace Elliot #185 | New Jersey Bassist Club #154
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Visit TalkBass on Facebook   Download our iOS app   Download our Android app

All times are GMT -6. The time now is 04:31 AM.




© 2012 Talk Music Group Inc. All rights reserved.
Play guitar too? Visit TalkGuitar.com
Powered by vBulletin® Version 3.6.12
Copyright ©2000 - 2013, Jelsoft Enterprises Ltd.