Amp Fuse keeps blowing

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chrisdotnet

Member - Posts: 4

Joined: June 21, 2004

Location: United States

Posted: June 21, 2004 at 12:42 PM / IP Logged

HI i need help my amp was working fine for the longest time then one day the amp fuse bloew (the fuse that goes in the amp) and i went out and baught some more and even when the car is off and i go to put it in it will blow the fuse, it blows the fuse no matter what i do what do u think is wrong?

customsuburb

Gold - Posts: 1,813

Joined: January 17, 2004

Location: United States

Posted: June 21, 2004 at 12:44 PM / IP Logged

Make sure the power and ground wires arn't touching each other, and that the power wire isn't touching bare metal. It could also mean your amp's life is over. What is the model?

kgerry

Platinum - Posts: 3,455

This member consistently provides reliable information

Joined: February 07, 2004

Location: Saskatchewan, Canada

Posted: June 21, 2004 at 12:45 PM / IP Logged

blown FETs in the power supply if the fuse blows as soon as you put it in... blown outputs if the fuse only blows when you remote the amp on.... both scenarios, you've got a problem in the amp.....

Kevin Gerry

Certified Electronics Technician

MECP First Class Installer

Owner/Installer

Classic Car Audio

since 1979

chrisdotnet

Member - Posts: 4

Joined: June 21, 2004

Location: United States

Posted: June 21, 2004 at 12:51 PM / IP Logged

The cables are not touching, not touching bare metal either, So how much do you think it will cost to fix it is it even worth it it's only a 240 watt pioneer amp i got it for free but. how much to fix

DYohn

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Joined: April 22, 2003

Location: Arizona, United States

Posted: June 21, 2004 at 1:02 PM / IP Logged

How much to fix? More than it's worth, sorry.

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chrisdotnet

Member - Posts: 4

Joined: June 21, 2004

Location: United States

Posted: June 21, 2004 at 1:17 PM / IP Logged

Ok i jus twent out an dmessed with it a bit it only blows when i connect the ground wire.

forbidden

Platinum - Posts: 5,353

Joined: November 01, 2003

Location: Alberta, Canada

Posted: June 21, 2004 at 1:23 PM / IP Logged

SAS - smelly amplifier syndrome. It sounds like blown outputs or a toasted power supply.

Top Secret, I can tell you but then my wife will kill me.

kgerry

Platinum - Posts: 3,455

Joined: February 07, 2004

Location: Saskatchewan, Canada

Posted: June 21, 2004 at 1:46 PM / IP Logged

why are you pi**ing around with the ground wire??... the FIRST thing that should be hooked up is the ground wire....an active power supply will search for ground ANYWHERE it can find it.... and god forbid you've got your RCA cables plugged in.....you just roasted most of the ground foils in the HU's audio circuit....leave the ground hooked up and dont play with it....

i service half a dozen power amps every day... read the above posts if you want to try and narrow your problem down.... or do you just want 30 similar opinions? you remind me of all my customers that come in here and say " i've been to 5 or 6 different places and they all told me to come here " it's like they needed to hear it enough times ( or from enough different people ) that it finally sinks in.......

Kevin Gerry

Certified Electronics Technician

MECP First Class Installer

Owner/Installer

Classic Car Audio

since 1979

Ravendarat

Platinum - Posts: 2,806

Joined: February 23, 2004

Location: Canada

Posted: June 21, 2004 at 2:50 PM / IP Logged

You sound frustrated Kevin :)

double-secret reverse-osmosis speaker-cone-induced high-level interference distortion, Its a killer

DYohn

Moderator - Posts: 10,741

Joined: April 22, 2003

Location: Arizona, United States

Posted: June 21, 2004 at 2:53 PM / IP Logged

Ah1 You beat me to it. I was about to reply "How can it blow when you connect your ground wire unless you have the power conencted first which is a BIG mistake." Thanks!

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