behringer powered mixer - must force clipping w/ pad off in order to run normally???? - diyAudio
Go Back   Home > Forums > Live Sound > Instruments and Amps
Home Forums Rules Articles diyAudio Store Gallery Wiki Blogs Register Donations FAQ Calendar Search Today's Posts Mark Forums Read

Instruments and Amps Everything that makes music, Especially including instrument amps.

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
Thread Tools Search this Thread
Old 14th July 2009, 02:50 PM   #1
diyAudio Member
Join Date: Jul 2009
Default behringer powered mixer - must force clipping w/ pad off in order to run normally????

I have a Behringer PMH880S 10-Channel Powered Mixer with FX (800 Watts). Its only a year old. All of a sudden I notice my left channel doesn't work, but I can still kind of hear scratchy sound coming through. So I force it to clip, and then its normal; perfect regular sound coming through like the right channel. Why do I have to have a loud sound (clip) to make the left channel work. I only have to force it to clip when I first turn on the amp. Even after I turn the amp off, if I use it within the next 10 minutes, the left channel still works fine. If I leave it for more then say 20min, I have to re-clip the left channel by making a loud sound in the microphone to make it work again.
  Reply With Quote
Old 14th July 2009, 07:23 PM   #2
diyAudio Member
EchoWars's Avatar
Join Date: Dec 2002
Location: Left of the Dial
Intermittent / bad solder connection, or a flaky semiconductor somewhere that needs to be beaten into submission before it decides to work.

The possibilities are endless...
  Reply With Quote
Old 14th July 2009, 07:37 PM   #3
diyAudio Member
Wavebourn's Avatar
Join Date: Sep 2006
Location: Pleasant Hill, CA
Send a message via Skype™ to Wavebourn
It is definitely bad contact somewhere. You need to open it and go through it with a scope.
The Devil is not so terrible as his math model is!
  Reply With Quote
Old 15th July 2009, 04:01 AM   #4
Enzo is offline Enzo  United States
diyAudio Member
Join Date: Sep 2004
Location: Lansing, Michigan
Find the power amp in jacks for that channel, squirt in some cleaner, and work a plug in an out several times. See if that helps.

It really sounds like a cutout contact on a switching jack somewhere.

Failing that, squirt some cleaner in hte power amp assign switch and the speaker processing switch and slide them bac and forth a forth a few times.

It doesn;t really sound like a bad electronic component.
  Reply With Quote


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
Yamaha Powered Mixer Emx 860st e_c_mccollum Instruments and Amps 10 12th May 2013 04:28 PM
Using a power amp with a powered mixer KPhoenix Solid State 8 20th October 2007 10:48 PM
Tda7294 blown in powered mixer megajocke Solid State 5 15th January 2007 11:07 AM
Powered Mixer Noises guitargully Solid State 0 9th January 2004 09:52 PM

New To Site? Need Help?

All times are GMT. The time now is 04:16 AM.

vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
Copyright 1999-2017 diyAudio

Content Relevant URLs by vBSEO 3.3.2