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 24th February 2010, 08:22 AM   #1
diyAudio Member
 
Join Date: Feb 2010
Default Help with Car amp troubleshooting

Ok first off I am a relative neewbie to car audio and don't claim to know much so please be gentle.

I was given a sony xplod xm-2002gtr by a friend so that I could have a little bass in my system. I connected the amp to a 4ohm mono speaker and ran it in the mono configuration on the amp. This setup worked for a few days, then the amp started cutting out. It seemed to happen when going over a bump. I checked the wires and even ran new amplifier wiring as the old wiring that came with my car was preety bad. I kept having the same issue and noticed that the protection light was lit some of the times that the amp wouldn't work. I tried connecting a different 4 ohm speak with no luck. Now the amp doesn't try to push the subs, even thought the power light is on and the protection light is not lit up.

I thought that the amp wasn't producing any sound but when I turn the speakers off and let the radio push just the amp and cranked the radio WAY up I get sound from the amp, which I can only assume is the non-amplified signal being sent to the amp.

In short I just need to know if my amp is fried or if there is something else that I should be checking.
  Reply With Quote
Old 24th February 2010, 01:33 PM   #2
diyAudio Member
 
Join Date: Sep 2009
Location: Wisconsin
The only experience with sony amps happened the other day, all of the solder joints on the power supply fets/ transistors were fractured. When I applied heat to reflow the solder the lead would physically move.

It wouldn't hurt to pull the cover and look at the solder joints.
  Reply With Quote
Old 24th February 2010, 04:38 PM   #3
diyAudio Member
 
Join Date: Nov 2003
Location: Louisiana
With your meter set to AC volts and the radio at high volume (as when you heard sound from the amp), what voltage do you read on the speaker terminals. Check both channels.
  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
Car amp killing battery or car xstation360 Car Audio 10 17th December 2010 09:09 PM
Help-Troubleshooting & schematic for older NEC A520E amp VictoriaGuy Solid State 14 7th April 2009 07:40 AM
need help troubleshooting an amp emremeydan Solid State 12 28th January 2008 10:16 PM
Fostex or Car Speakers for My Tube Car Amp Craig D Tubes / Valves 1 30th December 2007 07:01 PM
troubleshooting pwr protection, car audio amp masterchief Solid State 11 10th September 2006 12:26 PM


New To Site? Need Help?

All times are GMT. The time now is 08:29 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