Go Back   Home > Forums > >
Home Forums Rules Articles diyAudio Store Blogs Gallery Wiki Register Donations FAQ Calendar Search Today's Posts Mark Forums Read

Class D Switching Power Amplifiers and Power D/A conversion

Car audio amp burning smell
Car audio amp burning smell
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 2nd November 2011, 07:17 PM   #1
ATX0207 is offline ATX0207  United States
diyAudio Member
 
Join Date: Nov 2011
Location: Austin tx
Default Car audio amp burning smell

I have a Crunch gp3000 and a capacitor blew. A fluid came out of it. I cleaned it up with out getting any on my hands. I took out the bad capacitor and replaced it with a new one. Then I powered the amp up and I hear a pop noise in the circuit and then I started to smell some thing burning. It might have been a transistor but have not diagnosed any of the transistors yet.

The capacitor blew when the amp was on but I did not put any audio signal to it.

Does anyone know why this has happend?
What should I do
  Reply With Quote
Old 4th November 2011, 01:23 AM   #2
theAnonymous1 is offline theAnonymous1  United States
diyAudio Member
 
theAnonymous1's Avatar
 
Join Date: Feb 2004
Location: Anonymityville
If any of the output FETs are shorted it could push the full supply voltage through the cap exceeding it's voltage limit and causing it the vent.

For example, say the the power supply is +/-30V and the caps are rated at 35V; a short could cause the full 60V to be applied to the capacitors on one of the supply rails.
  Reply With Quote

Reply


Car audio amp burning smellHide 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

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Burning smell from Infinity Kappa 202a Compman55 Car Audio 7 28th January 2010 04:02 PM


New To Site? Need Help?

All times are GMT. The time now is 12:14 PM.


Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2018 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 15.79%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2018 DragonByte Technologies Ltd.
Copyright ©1999-2018 diyAudio
Wiki