Help Troubleshoot Outlaw Model 7100 Amp - diyAudio
Go Back   Home > Forums > Amplifiers > Solid State

Solid State Talk all about solid state amplification.

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 19th March 2006, 08:40 PM   #1
diyAudio Member
 
Join Date: Mar 2006
Location: CT
Default Help Troubleshoot Outlaw Model 7100 Amp

Hello everyone,

I am new to the site, lots of info! I have little knowledge about troubleshooting electonics, so thought I would seek out some expert opinions.

I have an Outlaw model 7100 amplifier which seems to have a defective channel. The speaker hooked up to it actually started to smoking when I initially tested the unit. I immediately powered the unit off and disconnected it from the power source.

I have sinced hooked it up to alternate (see old!) equipment to test the unit. All the 6 other channels seems to work just fine. When i went to test the final faulty channel, with the unit powered off but plugged in, the speaker made crackling/popping noises when the negative speaker wire made contact with the amplifier's negative speaker jack on that channel. Once the unit was powered on, the speaker produced only a static hum.

Any help on insight anyone could provide would be greatly appreciated.

Thank you!
  Reply With Quote
Old 20th March 2006, 12:30 AM   #2
Leolabs is offline Leolabs  Malaysia
diyAudio Member
 
Leolabs's Avatar
 
Join Date: Dec 2004
Location: Bukit Mertajam
Send a message via MSN to Leolabs
Get yourself a multimeter and check the output DC voltage level,it should go up quite a number,which mean the circuitry is already KO!
  Reply With Quote
Old 20th March 2006, 01:08 PM   #3
diyAudio Member
 
Join Date: Mar 2006
Location: CT
thank you for your input. Do you have any ideas as to specifically what might be causing this problem?

Anyone?

Thanks!
  Reply With Quote
Old 20th March 2006, 07:13 PM   #4
diyAudio Member
 
Join Date: Aug 2004
Location: Illinois
Can you or somebody post a copy of the schematic?
  Reply With Quote
Old 20th March 2006, 08:15 PM   #5
diyAudio Member
 
Join Date: Mar 2006
Location: CT
I'm sorry, I dont have a schematic for the amplifier. I tried searching for one quickly online, but came up empty handed, maybe someone else will be able to help out.

Thank you for your reply and hopfully for your assistance!
  Reply With Quote
Old 21st March 2006, 06:27 PM   #6
diyAudio Member
 
Join Date: Aug 2004
Location: Illinois
Well, I just thought I would ask. The schematic for this device is probably a securely held proprietary secret.

However, apparently the Outlaw folks are very good at providing service. I believe that is where you should go to get help and service.

The fact that just one channel has a huge amount of DC offset but the others are OK indicates a problem with that one channel that is probably beyond your control to fix.

The only other question is, what happens if you switch inputs around. Does the problem follow the input you had to the bad channel? Does the bad channel get corrected by using a different input? We assume that each channel has an input capacitor that blocks and DC that might be riding on the signal. If not, and the signal for that channel has a big DC component, this DC could be amplified and show up at its output.

Good luck......
  Reply With Quote
Old 21st March 2006, 07:35 PM   #7
diyAudio Member
 
Join Date: Mar 2006
Location: CT
Well, you lost me there, but thanks for the help. I will try to see about getting it fixed, as obviously I have no idea what I am doing.

I only need 5 channels of the amplifier, do you think it would be safe to use the amplifier as is, without using the problem channel?

Thanks
  Reply With Quote
Old 21st March 2006, 11:58 PM   #8
diyAudio Member
 
Join Date: Aug 2004
Location: Illinois
Sure, if you don't need all the channels, just don't put an input into the problem channel. Are the channels "dedicated?" That is, must each be used for a specific purpose, or do you just have 7 channels into which you can select which to put an input?

What provides the signal source for your amp's various channels? Are you using a pre/pro or a receiver with outputs?
  Reply With Quote
Old 22nd March 2006, 01:20 PM   #9
diyAudio Member
 
Join Date: Mar 2006
Location: CT
I am using an Outlaw Audio 950 pre/pro. I believe that the 7 channels on the amplifier are not dedicated. While they are labeled front left, front right..., I dont think there is any reason why I couldnt input the center channel output from the PRE into the amplifier channel labeled front left, or whatever.

Thanks for your help
  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
Outlaw 750 & 950 Service manuals audioDIYer Solid State 2 9th December 2007 03:22 PM
Op amps on Outlaw 990 pre pro ben62670 Vendor's Bazaar 1 14th May 2007 07:24 AM
FS: Outlaw 970 pre/pro jjfox Swap Meet 2 20th May 2006 09:34 PM
P3a vs outlaw audio amps AJ Bertelson Solid State 1 22nd April 2003 07:37 PM
FS: Outlaw 1050 PaulHilgeman Swap Meet 0 4th February 2003 05:28 AM


New To Site? Need Help?

All times are GMT. The time now is 05:40 PM.


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