amp over heating
Printed From: the12volt.com
Forum Name: Car Audio
Forum Discription: Car Stereos, Amplifiers, Crossovers, Processors, Speakers, Subwoofers, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=31626
Printed Date: October 28, 2025 at 11:17 PM
Topic: amp over heating
Posted By: quinny
Subject: amp over heating
Date Posted: May 05, 2004 at 1:48 AM
brand new platinum digital 1200 monblock power amp over heat in seconds has anyone go any idears? i followed the instruction manual for the wireing.
Replies:
Posted By: quinny
Date Posted: May 05, 2004 at 1:49 AM
it is also blowing main power fuse
Posted By: smurfsjeep
Date Posted: May 05, 2004 at 1:59 AM
did u happen to check yor ground..???
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Posted By: quinny
Date Posted: May 05, 2004 at 2:06 AM
yes ground wire heat up too
Posted By: smurfsjeep
Date Posted: May 05, 2004 at 2:09 AM
where do u have the ground connected to??? and what do u have running in your car right now??? -------------
Posted By: smurfsjeep
Date Posted: May 05, 2004 at 2:24 AM
i also tried the white wire on the factory amp but got no sound when i did that.. and if i did get sound it was late and distorted...
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Posted By: quinny
Date Posted: May 05, 2004 at 2:26 AM
it is connected to bolt in floor of car. only 1 12 inch alpine sub for now would like it to run 1 12's
Posted By: quinny
Date Posted: May 05, 2004 at 2:27 AM
Posted By: smurfsjeep
Date Posted: May 05, 2004 at 2:27 AM
u r using the seat belt right???? basic installation always use the seat belt screw.. greatest ground in the car direct to the chasis
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Posted By: quinny
Date Posted: May 05, 2004 at 2:44 AM
no it is not it is using tie down bolt that go's through in to chasis
Posted By: quinny
Date Posted: May 05, 2004 at 2:48 AM
the thing that has me lost why is it blowing the bigger fuse and not the ones in the back of the amp
Posted By: smurfsjeep
Date Posted: May 05, 2004 at 2:51 AM
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....
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Posted By: forbidden
Date Posted: May 05, 2004 at 3:02 PM
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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Top Secret, I can tell you but then my wife will kill me.
Posted By: kgerry
Date Posted: May 05, 2004 at 3:12 PM
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
Posted By: quinny
Date Posted: May 07, 2004 at 11:02 PM
only when i remote the amp on runs for about 40sec then blows
Posted By: DYohn
Date Posted: May 08, 2004 at 9:38 AM
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? ------------- Support the12volt.com
Posted By: kgerry
Date Posted: May 08, 2004 at 11:34 AM
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....
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Kevin Gerry
Certified Electronics Technician
MECP First Class Installer
Owner/Installer
Classic Car Audio
since 1979
Posted By: quinny
Date Posted: May 09, 2004 at 5:15 AM
thank for all your help guys taking the amp back to dealer
Posted By: DYohn
Date Posted: May 09, 2004 at 9:27 AM
You never told us what you had connected to the amp... ?? ------------- Support the12volt.com
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