Jl audio 250/1 - diyAudio
Go Back   Home > Forums > General Interest > Car Audio

Please consider donating to help us continue to serve you.

Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
Reply
 
Thread Tools Search this Thread
Old 17th May 2010, 06:46 PM   #1
diyAudio Member
 
Join Date: Sep 2006
Default Jl audio 250/1

I have this amp in for repair. Amp powers up and plays fine until u try to adjust the filter freq pot then the amp cuts out for a sec and come back on.

Any ideas?
  Reply With Quote
Old 17th May 2010, 06:52 PM   #2
Glowbug is offline Glowbug  United States
diyAudio Member
 
Glowbug's Avatar
 
Join Date: Feb 2006
Location: Hillsborough, NC
Is it a sealed pot or no?

If it isn't, Deoxit first...
__________________
Jim
The machine does not isolate us from the great problems of nature but plunges us more deeply into them. - Antoine de Saint-Exupéry
  Reply With Quote
Old 17th May 2010, 07:06 PM   #3
diyAudio Member
 
Join Date: Sep 2006
Its sealed
  Reply With Quote
Old 17th May 2010, 07:09 PM   #4
diyAudio Member
 
Join Date: Nov 2003
Location: Louisiana
Does it make the speakers pop or move in/out significantly?

Does it go into protect?

What if you bypass the crossover?
  Reply With Quote
Old 17th May 2010, 07:17 PM   #5
diyAudio Member
 
Join Date: Sep 2006
Doesnt go into protect. Cross over is off right now. Also makes the speaker flutter a lil
  Reply With Quote
Old 17th May 2010, 07:51 PM   #6
diyAudio Member
 
Join Date: Nov 2003
Location: Louisiana
If you push on the board in the area of the crossover pot, does it do the same thing?
  Reply With Quote
Old 17th May 2010, 08:06 PM   #7
diyAudio Member
 
Join Date: Sep 2006
Im thinking it Might be the pot itself. If i push on the board it doesnt change if i mess with the pot it makes the sub flutter even worse then before
  Reply With Quote
Old 17th May 2010, 08:24 PM   #8
diyAudio Member
 
Join Date: Nov 2003
Location: Louisiana
You're probably right.

You can try cleaning it. A good contact cleaner will creep in-between the sections of the pot. If it doesn't, you can take a thin razor blade or knife and force it VERY slightly into the top corner of the side of the pot without the rivet. That will allow the contact cleaner to get into the housing more easily.

You can try to get one from JL but I don't think they sell parts.
  Reply With Quote
Old 19th May 2010, 11:34 AM   #9
diyAudio Member
 
Join Date: Sep 2006
Perry,

I replaced the switch with no luck. When the amp is playing and i turn the volume up on my cd player to increase the input The amp cuts off.

When the amp cuts off the green power light on the amp shuts off as well for a few secs then the amp turns on again and starts playing for a few secs then shuts back off. Any ideas?
  Reply With Quote
Old 19th May 2010, 05:47 PM   #10
diyAudio Member
 
Join Date: Nov 2003
Location: Louisiana
These amps are VERY sensitive to low voltage. Dips in voltage too short to read with a typical multimeter will cause them to go into protect. Try it on a larger power supply (no series resistor) or in a vehicle.
  Reply With Quote

Reply


Hide this!Advertise here!
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

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


Similar Threads
Thread Thread Starter Forum Replies Last Post
JL Audio 250/1 HF no output RJCRAFTS Car Audio 3 7th June 2008 04:43 AM
JL AUDIO 250/1 idle current Pioneer621 Car Audio 2 24th April 2008 10:31 PM
jl audio nicandjade Swap Meet 0 2nd September 2006 10:35 AM
JL Audio vs Polk Audio xfsrg Car Audio 2 17th October 2004 06:09 AM


New To Site? Need Help?

All times are GMT. The time now is 11:38 AM.


vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd.
Copyright ©1999-2014 diyAudio

Content Relevant URLs by vBSEO 3.3.2