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My Amp fuse keeps on blowing

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Old 03-23-2009, 12:49 PM
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Unhappy My Amp fuse keeps on blowing

Recently I changed my amp and box. The amp and box worked fine for a couple of days and on my way to work, the bass stopped. So when I had a chance I checked and the fuse on the amp had blown.

So I went into Canadian Tire, got new fuses and they just keep blowing. I checked for any issues with the wires, but I don't see anything apparent. I mean everything worked fine with my previous setup.

Can the amp be bad? I have a 30 amp fuse on the 12v line and the amp takes a 25 amp fuse. The fuse only blows when the remote wire is triggered.

Like I said it worked fine for a couple of days, now nothing works.

Any insight would be appreciated.

Here's a picture of the amp and box.



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Old 03-23-2009, 01:13 PM
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unhook all the speaker wires and the rcas, then try it....if it works, it's likely not the amp.

if it does work this way, get a DMM and test the speaker leads.

its a start.
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Old 03-23-2009, 01:39 PM
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Originally Posted by MTT
unhook all the speaker wires and the rcas, then try it....if it works, it's likely not the amp.

if it does work this way, get a DMM and test the speaker leads.

its a start.
I unplugged everything, except the power, ground and remote and it did the same thing, the fuse blew as soon as I turned on the stereo.
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Old 03-23-2009, 02:18 PM
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Amp is toast.
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Old 03-23-2009, 02:34 PM
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Originally Posted by MR2NR
Amp is toast.
Before I throw the amp out, should I check for grounding.
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Old 03-23-2009, 02:56 PM
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If the fuses are blowing in the amp, the amp has a ground...... chances are that the power supply or output section of the amp is toast. Smell it, if it smells like burned electronics, then the magic smoke that makes it work has been released and needs to be sent for service.
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Old 03-23-2009, 03:15 PM
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Originally Posted by MR2NR
If the fuses are blowing in the amp, the amp has a ground...... chances are that the power supply or output section of the amp is toast. Smell it, if it smells like burned electronics, then the magic smoke that makes it work has been released and needs to be sent for service.
I opened it up and didn't see anything burned. Perhaps I should check the circuit board on the other side.
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Old 03-23-2009, 03:16 PM
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can you post a pic of the other e side of the amp (of the power wire )
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Old 03-23-2009, 05:42 PM
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Originally Posted by zzzzzzz
can you post a pic of the other e side of the amp (of the power wire )
Yes, I can... I'll post a pic after I try re-installing it again. I just took the amp apart to see if I can see something burned, but everything looks normal.

I'm going to check the ground wire again and try it... I'll post a picture of the Power, Remote and Ground once I do that.
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Old 03-23-2009, 06:46 PM
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Here are some pictures. Only the Power, Remote and Ground are hooked up:





Here's a picture of my grounding point.



And here's a reading of the power on the amp with the remote trigger on... which caused the fuse to blow right away.

The reading on the trigger wire to the ground when trigger is on is also 11.xx volts.



It seems that the power is OK... but I'm no expert. Any insight??
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