amp problems!! - 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 22nd November 2005, 12:14 PM   #1
diyAudio Member
 
Join Date: Nov 2005
Location: Doonside Sydney AUSTRALIA
Send a message via MSN to fusionBOY
Default amp problems!!

hows it goin fellas...new to the forum so easy on me aye ..joke..anyway fell into a bit of a situation..the problem--the protection light on my amp is on and ive gone over alota things that i thought couldve fixed it and none of them worked so far i have checked to make sure that no part of the battery wire or ground wire was exposed or cut also changed the rca cables and at the moment pullin my hair out over it.the amp is a fusion fe-300d mono(crap) ive checked the fuses(kinda and all seems well) and it cant be a problem with my deck(alpine head unit). to open the amp scares me and paying someone to look at it will kill my pockets same with buying a new one. i guess i can just turn off the subs and listen to music like how it was when i first bought my car(5 years ago) but that would be borin and im no longer annoying the neighbourhood thats no fun anyway guys sorry for the long sob story but any help or anything would be greatly appreciated.THANKS....
  Reply With Quote
Old 22nd November 2005, 02:16 PM   #2
TO-3 is offline TO-3  Peru
diyAudio Member
 
TO-3's Avatar
 
Join Date: Feb 2004
Location: Phoenix, Arizona
Send a message via Yahoo to TO-3
Default Re: amp problems!!

Quote:
Originally posted by fusionBOY
hows it goin fellas...new to the forum so easy on me aye ..joke..anyway fell into a bit of a situation..the problem--the protection light on my amp is on and ive gone over alota things that i thought couldve fixed it and none of them worked so far i have checked to make sure that no part of the battery wire or ground wire was exposed or cut also changed the rca cables and at the moment pullin my hair out over it.the amp is a fusion fe-300d mono(crap) ive checked the fuses(kinda and all seems well) and it cant be a problem with my deck(alpine head unit). to open the amp scares me and paying someone to look at it will kill my pockets same with buying a new one. i guess i can just turn off the subs and listen to music like how it was when i first bought my car(5 years ago) but that would be borin and im no longer annoying the neighbourhood thats no fun anyway guys sorry for the long sob story but any help or anything would be greatly appreciated.THANKS....
You tried many things, but did you remove the speakers to see if the light goes off? This would be the first step to isolate the source or the load.
__________________
Check out Tube Driver BLUE products at: www.tubedriver.com
  Reply With Quote
Old 22nd November 2005, 08:28 PM   #3
diyAudio Member
 
Join Date: Nov 2005
Location: Doonside Sydney AUSTRALIA
Send a message via MSN to fusionBOY
removing speaker leads from amp doesnt turn protection light off its still on but when i removed the rca cables that made the light go off for a few minutes then it came back on.would changing the rca cables again be a good idea??
  Reply With Quote
Old 22nd November 2005, 08:28 PM   #4
diyAudio Member
 
Join Date: Nov 2005
Location: Doonside Sydney AUSTRALIA
Send a message via MSN to fusionBOY
that is the amp giving me the problems if the picture came up
Attached Images
File Type: jpg fusionamp.jpg (3.3 KB, 150 views)
  Reply With Quote
Old 22nd November 2005, 11:32 PM   #5
TO-3 is offline TO-3  Peru
diyAudio Member
 
TO-3's Avatar
 
Join Date: Feb 2004
Location: Phoenix, Arizona
Send a message via Yahoo to TO-3
Quote:
Originally posted by fusionBOY
removing speaker leads from amp doesnt turn protection light off its still on but when i removed the rca cables that made the light go off for a few minutes then it came back on.would changing the rca cables again be a good idea??
The RCAs should not cause the amp to go into protection. I think the amp needs some surgery.
__________________
Check out Tube Driver BLUE products at: www.tubedriver.com
  Reply With Quote
Old 23rd November 2005, 12:05 AM   #6
diyAudio Member
 
Join Date: Nov 2003
Location: Louisiana
I've seen similar problems when solder connections on the output transistors or the emitter resistors have failed. When no signal is present, the output rests at 0vdc (no DC offset). When any signal is applied, it forces the output to move from 0v. If both the positive and negative outputs are not operating properly (possibly due to a bad connection), the output can not be returned to 0v. This causes the amp to have a DC offset which will cause the amp to go into protect.

If a broken connection is the problem, you can often apply slight pressure to the board (in the general area of the outputs in this case) and the problem will go away.

If it were a shorted output (a common failure that causes amps to go into protect mode), I'd expect it to go into protect every time you power it up.
  Reply With Quote
Old 23rd November 2005, 05:18 PM   #7
diyAudio Member
 
Join Date: Nov 2005
Location: Doonside Sydney AUSTRALIA
Send a message via MSN to fusionBOY
on my way home the amp must of come out of protection mode cause i had the subs pumpin real good for at least 20 minutes...
i found turning off the sub through the deck setting then turning off the deck waiting a few minutes then turning everything back on id get another 20 minutes...but i dont wanna risk blowing anything so ill leave it off for now.could something be loose inside the amp...if so anything in particular i should be paying attention to, or could there be maybe something wrong with the head unit im using?
  Reply With Quote
Old 23rd November 2005, 09:58 PM   #8
diyAudio Member
 
boris333's Avatar
 
Join Date: Apr 2004
Location: .
dose the amp get hot ... it may go in protection mode because it overheats
  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
GFA-565 problems ben62670 Solid State 5 14th August 2008 06:36 AM
HK AVR 335 Problems utjay2008 Solid State 0 21st October 2007 02:26 AM
Sub Amp Problems Thanks! crippledchicken Solid State 2 10th January 2007 06:17 PM
JLH problems serosmaness Solid State 11 2nd November 2004 06:17 PM
RFI problems laz Solid State 3 21st February 2004 07:06 AM


New To Site? Need Help?

All times are GMT. The time now is 05:15 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