fuse keeps blowing, MTX 1501

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lilboi

Copper - Posts: 126

Joined: May 01, 2004

Location: United States

Posted: September 10, 2004 at 7:06 PM / IP Logged

Alright, i have a MTX 1501 amp. Today , all of a sudden my fuse blew. I put a new fuse, and that blew too. I have a cap in between the amp and the battery. What could be the problem? did i blow my amp? I did not pump it up at all.

Battery ----- Cap ----- AMP

ground -----/ \-------/

That's how i wired it. Could it be the cap? or is it the amp dead? I tried putting a fuse first then put in then plug in the ground. It just sparked then the fuse blew. I need help

I've been using the amp for more then 3 months with out a single problem.

12-volt_guy

Copper - Posts: 53

Joined: September 10, 2004

Location: United States

Posted: September 10, 2004 at 7:23 PM / IP Logged

Disconnect the speakers from the amp (at the amp). Try the fuse again. If it blows, bad amp. If it doesn't blow, check the speaker wire for a short somewhere. Easy way to do this is with a 1.5-volt flashlight battery. Connect one side of battery to ground in car and touch each speaker wire one at a time to the other side of battery. If you hear any static coming from the speaker, you have a shorted wire.

forbidden

Platinum - Posts: 5,352

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Joined: November 01, 2003

Location: Alberta, Canada

Posted: September 10, 2004 at 9:40 PM / IP Logged

Disconnect the rca leads as well, they too can be dead shorting. Ensure that your ground is good and tight on both the cap and chassis ground.

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

lilboi

Copper - Posts: 126

Joined: May 01, 2004

Location: United States

Posted: September 10, 2004 at 10:15 PM / IP Logged

Yea i dissconnected everything. So i pluged in the power and ground. and tried it again. It still blows. Does this have to do anything with the cap? any other problems?

Ravendarat

Platinum - Posts: 2,806

Joined: February 23, 2004

Location: Canada

Posted: September 10, 2004 at 10:36 PM / IP Logged

Is it the fuse in the amp or the one under the hood. If its the one in the amp then I suggest you try to bypass the cap and if it still blows then its the amp. If it is the one under the hood then try disconnecting the amp and replace teh fuse under the hood. It could be a dead short in the wire.

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

lilboi

Copper - Posts: 126

Joined: May 01, 2004

Location: United States

Posted: September 10, 2004 at 11:38 PM / IP Logged

I actually have two fuses, one under hood. And one for my distrubutor.

jeffchilcott

Platinum - Posts: 2,483

Joined: April 11, 2002

Location: United States

Posted: September 11, 2004 at 11:05 AM / IP Logged

so which one is blowing both?

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lilboi

Copper - Posts: 126

Joined: May 01, 2004

Location: United States

Posted: September 11, 2004 at 1:35 PM / IP Logged

yea both are blowing

lilboi

Copper - Posts: 126

Joined: May 01, 2004

Location: United States

Posted: September 11, 2004 at 1:35 PM / IP Logged

yea both are blowing, well one at a time.

kgerry

Platinum - Posts: 3,455

This member consistently provides reliable information

Joined: February 07, 2004

Location: Saskatchewan, Canada

Posted: September 11, 2004 at 2:39 PM / IP Logged

disconnect power to the amp and replace the fuse... did it blow? which one? disconnection the cap... replace the fuse... did it blow?

you have one of three possible scenarios... a short on the power cable... a short internally in the cap... or a short internally in the amp...... or possibly wierdly a short in the distribution block if it happens to be a dual power/ground split dist block.....

it shouldnt be that hard to narrow down, disconnect one item at a time until you no longer blow a fuse... that will be the culprit

Kevin Gerry

Certified Electronics Technician

MECP First Class Installer

Owner/Installer

Classic Car Audio

since 1979

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