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amp over heating

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quinny 
Member - Posts: 12
Member spacespace
Joined: May 04, 2004
Location: Bahamas
Posted: May 05, 2004 at 2:48 AM / IP Logged  

the thing that has me lost why is it blowing the bigger fuse and not the ones in the back of the amp

smurfsjeep 
Member - Posts: 14
Member spacespace
Joined: May 05, 2004
Location: United States
Posted: May 05, 2004 at 2:51 AM / IP Logged  
the reason that happens is because b4 anything blows on the amp the first fuse will go like a surge protector with no power goin to the amp how do u expect to blow a fuse in the amp.. its a security method to spare the amp plus use the seat belt for a ground i blew 3 main fuses that way myself....
forbidden 
Platinum - Posts: 5,354
Platinum spaceThis member has made a donation to the12volt.com. Click here for more info.spaceThis member has been recognized as an authority in Mobile Audio and Video. Click here for more info.spacespace
Joined: November 01, 2003
Location: Alberta, Canada
Posted: May 05, 2004 at 3:02 PM / IP Logged  
What guage wire are you using for the power and ground? And no the seat belt bolt or similar is not the ideal ground point.
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kgerry 
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Joined: February 07, 2004
Location: Saskatchewan, Canada
Posted: May 05, 2004 at 3:12 PM / IP Logged  

sounds like you've a got a problem with the amp.... keep in mind that when dealing with a dead short a rectifier or fuse will always blow closest to the source of voltage, in this case the battery in the vehicle, than further down the line

does the fuse go when you apply primary power to the amp, or only when you try to remote the amp on?

Kevin Gerry
Certified Electronics Technician
MECP First Class Installer
Owner/Installer
Classic Car Audio
since 1979
quinny 
Member - Posts: 12
Member spacespace
Joined: May 04, 2004
Location: Bahamas
Posted: May 07, 2004 at 11:02 PM / IP Logged  

only  when i remote the amp on

runs for about 40sec then blows

DYohn 
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Joined: April 22, 2003
Location: Arizona, United States
Posted: May 08, 2004 at 9:38 AM / IP Logged  
Indeed, NEVER use a seat belt bolt for a ground!  Common mistake.  My guess is you have too low an impedence load on your amp.  What's it driving and how many ohms is the load?
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kgerry 
Platinum - Posts: 3,455
Platinum spaceThis member consistently provides reliable informationspace
Joined: February 07, 2004
Location: Saskatchewan, Canada
Posted: May 08, 2004 at 11:34 AM / IP Logged  
you've got blown outputs my man....if the problem was in the power supply it would shag the fuse as soon as power was connected, if its only blowing when you remote the amp on you've got something blown in the output rail....take it in for service....
Kevin Gerry
Certified Electronics Technician
MECP First Class Installer
Owner/Installer
Classic Car Audio
since 1979
quinny 
Member - Posts: 12
Member spacespace
Joined: May 04, 2004
Location: Bahamas
Posted: May 09, 2004 at 5:15 AM / IP Logged  
thank for all your help guys taking the amp back to dealer
DYohn 
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Joined: April 22, 2003
Location: Arizona, United States
Posted: May 09, 2004 at 9:27 AM / IP Logged  
You never told us what you had connected to the amp... ??
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