Kenwood Kac-8104D Problem - 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 9th November 2011, 10:07 PM   #1
diyAudio Member
 
Join Date: Oct 2010
Location: Florence, Alabama
Default Kenwood Kac-8104D Problem

When powered up first it would come on for a sec then blow the 10A safety fuse on my power supply, ( i have this to keep from overloading it , while i use it for testing purposes) all of the mosfets seem to check good, its almost like it is shorting out though, but now i can power it up and the blue light comes on and the red light does not, i was thinking it was a power mosfet but the seem to check good. anyone familiar with this problem?
  Reply With Quote
Old 9th November 2011, 10:10 PM   #2
diyAudio Member
 
Join Date: Sep 2009
Location: Wisconsin
Cycle the power really fast the first 3-4 times to let the caps charge, you might be experiencing a huge in-rush that is taking out the fuse.
  Reply With Quote
Old 9th November 2011, 10:18 PM   #3
diyAudio Member
 
Join Date: Nov 2003
Location: Louisiana
What type of fuse are you using?
  Reply With Quote
Old 9th November 2011, 10:36 PM   #4
diyAudio Member
 
Join Date: Oct 2010
Location: Florence, Alabama
ato 10 amp
  Reply With Quote
Old 9th November 2011, 10:38 PM   #5
diyAudio Member
 
Join Date: Nov 2003
Location: Louisiana
The ATO/ATC generally hold but you may need a 15 amp fuse for this amp (brandes was likely correct). A 15 amp fuse is generally safe for all amplifiers as long as all power semiconductors are clamped to the heatsink.
  Reply With Quote
Old 9th November 2011, 10:39 PM   #6
diyAudio Member
 
Join Date: Oct 2010
Location: Florence, Alabama
even with no signal input?
  Reply With Quote
Old 9th November 2011, 10:44 PM   #7
diyAudio Member
 
Join Date: Oct 2010
Location: Florence, Alabama
yeah all semiconductors are clamped during power
  Reply With Quote
Old 9th November 2011, 10:45 PM   #8
diyAudio Member
 
Join Date: Oct 2010
Location: Florence, Alabama
and also a time or 2 it would overload the powersupply and cause it to shut down if it didnt blow the fuse
  Reply With Quote
Old 9th November 2011, 11:01 PM   #9
diyAudio Member
 
Join Date: Nov 2003
Location: Louisiana
What sort of supply did it shut down?
  Reply With Quote
Old 9th November 2011, 11:18 PM   #10
diyAudio Member
 
Join Date: Oct 2010
Location: Florence, Alabama
its a 20 amp 12v powersupply, i just use it for test purposes , ive had way stronger amps on it and havent had any problem testing them , im just trying to trouble shoot this amp it should power up and stay on with that power supply
  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
kenwood kac-715 purocolt Car Audio 6 16th May 2014 10:23 PM
Kenwood kac - x521 major problem arazs5 Car Audio 17 18th March 2010 02:45 AM
Kenwood KAC-X301T and KAC-X201T:Do they share the same board? spooney Car Audio 1 25th October 2007 01:08 AM
Kenwood kac-x201T SomeDude Car Audio 14 20th October 2007 11:51 PM
A problem with Kenwood KAC-846 bega_83 Car Audio 9 15th October 2007 12:19 PM


New To Site? Need Help?

All times are GMT. The time now is 11:11 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