amp keeps shutting down

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DYohn

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Joined: April 22, 2003

Location: Arizona, United States

Posted: November 14, 2011 at 1:17 PM / IP Logged

OK, if the voltage is dropping on the main power to 0.2 volts (with positive lead on power and negative lead on ground) then you are losing power completely on the line. This is very unusual. It could be that the amp is defective and shorting the power supply, but I would expect the power supply fuse to blow - you do have a fuse on the main power cable, between the amp and the battery, right? How is the amp being powered? You're not using a cap are you? If so how is it wired? A reading of 0.2 volts would normally indicate a blown power fuse, but it would be unusual for the fuse to reset and come back on... are you using a circuit breaker? More information about your power setup would be appreciated.

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performance713

Member - Posts: 19

Joined: November 14, 2011

Location: Texas, United States

Posted: November 14, 2011 at 4:18 PM / IP Logged

if you have a fuse between the front battery and the back battery make sure there's power running to your back battery,, your back battery may be running low and making your amp to shut down. another thing you may wanna check its your alternator,, it may start to go bad and it may be charging at low amps..

im ( J ) and car audio is my thang.. and if i can help i will.

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deeryders

Copper - Posts: 97

Joined: November 08, 2011

Location: New York, United States

Posted: November 16, 2011 at 8:18 PM / IP Logged

I have a 200 amp fuse from the front battery leading to the back battery then from the back battery to the bass amp has a 200 amp fuse as well. everything coming from the back battery is fused.

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DYohn

Moderator - Posts: 10,741

Joined: April 22, 2003

Location: Arizona, United States

Posted: November 17, 2011 at 10:49 AM / IP Logged

While it is possible you have a fuse that is opening momentarily without blowing, it is extrememly rare. You could try differnt fuses, but my guess is you have a defective amplifier.

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addicted

Copper - Posts: 59

Joined: May 27, 2005

Location: United States

Posted: November 23, 2011 at 11:01 PM / IP Logged

while the car is running do youhave approximately 14.4 voltage reading to your rear battery? unless one battery is bad, or alt cannot keep up the proper current charge rate.

it calls me...

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amp keeps shutting down

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