Question about Alpine MRD-M1005 Car Audio Amplifier

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Can I fix a fried amp?

I was hooking up a compaciter and didnt realize the compaciter had a charge stored in it. When tring to hook up to my amp, it touched the chassis of my amp and the amp has ceased to work. Checked all four external fuses hoping it just blew one of them, but they are all fine. Is there anyway I can fix it inexpensively because I have no warranty on the amp.

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Re: Can I fix a fried amp?

Hi, how good are you with electronics? Are you able to open up the amp and see any obvious problems? I suggest that if your not very good with electronic circuits, get a professional to have a look at it, as if you damage it more by trying to fix it your self, it will probably cost you more to fix it. It may be as simple as an earth track been burnt, but even that in most cases will force you to completely disassemble the amp to find the problem. It may also be the diode right next to the power supply terminals that may be damaged and in some cases that can cause problems. Let me know if you open the amp, if possible post some pics and will see if there is something obvious that stands out. Cheers

Posted on Jun 06, 2006

Re: Can I fix a fried amp?

Many amps have a zenor diode in them that will protect the amp in the event of a short this diode is cheap and easy to replace. take the amp apart and look between the positive and neg rails on the board it will be there any one that sells them can test them if yiur multimeter does not have a diode check feature.

Posted on Sep 26, 2007

Re: Can I fix a fried amp?

Wrong ohms and blew up the amp can it be fix

Posted on Mar 20, 2007

Re: Can I fix a fried amp?

Transistors on the driver board have burnt out and i need to replace them but i do not know the part numbers POWER ACOUSTIC A3000DB MONOBLOCK AMP

Posted on Jan 10, 2007

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Re: Can I fix a fried amp?

The first thing you did wrong was buy a sony explode...those guys need to stick to making televisions, secondly ALWAYS have a fuse no more than 3 feet from your battery,between that and the one(s) on your amp it would be impossible to damage your amp.Also ALWAYS disconnect the neggative cable from your battery when you do any tinkering with the wires on your amp.

Posted on Apr 15, 2010

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SOURCE: Amp not working

my friend your amp could be getting power that does not mean that it is working.the power only goes to certain point but because your regulator or other related component is defected your amp power supply will not work until the defect is corrected.take it to a tech and have your set repaired.good luck.

Posted on Jun 11, 2007

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SOURCE: amp light is on but doesn't put anything out to my subs

if you are sure its the amp. the problem is internal. but if your not sure, try a different stereo or source of sound to the inputs of the amp. if there is still no sound than it is the amplifier and it could be a number of things.

Posted on Jan 07, 2008

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SOURCE: i have 4/3/2 ch. alpine f-240 amp- i want to hook

run two 6x8s on each of the front channels of the amp. then depending on the sub you can bridge it on the rear channels.only if its a single four ohm. if its a dual 2 ohm sub run each coil on each channel. 1 coil-1channel. the other coil-the other channel. amp should run fine may run a little hot since it will be doing all it can do at a safe ohm load. just make sure it is mounted in a well vented area. should be safe.

Posted on Dec 27, 2009

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lets do some diagnosis.. if it's possible, try hooking another known good sub up to the amp and see if that works. if it doesnt, it's an issue with your amp. if it does work though, it's an issue with your sub. or the wiring. if it's a dual voice coil sub, make sure you've got both positives hooked up to positive from the amp, and both negatives hooked up to negative from the amp. if you've accidently got positive from the amp going to positive of one voice coil then to the negative of the other, and the negative from the amp going to the negative of one voice coil then to the positive of the other, the voice coils will be pushing against eachother cancelling eachother's movements out. and this will fry the sub. OR the sub is already fried.

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fuse blown maybe? check the fuse(s) on the amp, and also on your car's dash for audio or acc maybe. And check the bubble on your battery.

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