Question about Crate SPA1600 Power Amplifier - SPA Series Car Audio Amplifier

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Too many repairs

Keeps blowing fuses.
any suggestions

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Power supply install new caps and mosfets parts at nte semiconducter.com good luck easy fix is this house or car amp if house check transformer

Posted on Aug 30, 2009

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  • SHAN BAILEY Aug 30, 2009

    and bridge rectifier radio shack 2.00$

  • SHAN BAILEY Aug 30, 2009

    and bridge rectifier radio shack 2.00$

  • SHAN BAILEY Aug 30, 2009

    and bridge rectifier radio shack 2.00$

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Sounds like you power supplies (mosfets) are bad

Posted on Sep 16, 2008

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1 Answer

My car Amp keeps blowing the main fuse, How to find the short?


Hello A4en1, hi, A short circuit need not be burned, the short usually are semiconductors such as ICs and transistors or diodes, I suggest you replace your IC power amplifier.

Mar 29, 2010 | Sony Car Audio & Video

1 Answer

It keeps blowing fuses when i put one in


Check that you wiring is correct. Positive to positive and negative to negative.

If it still blows fuses then Power supply or output rails are dead short.

Take it in to a reputable dealer and have it repaired.

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Kenwood KAC-729S keeps blowing fuses. Checked all cables, re-ran power, remote, and ground. All good, still blows them at power-up.


Hello opey_69a,

Here are the troubleshooting steps for fuses blowing.
1) Remove all wiring except ground, power and remote and see if the amp powers up without blowing the fuses. If it does, the problem is in the input cables or speaker wiring.
2) The use of loudspeaker impedances below the recommended minimums will cause the amp to draw excessive current - check.
3) A shorted or grounded RCA cable may cause the fuses to blow - check.
4) If an amplifier fuse blows continually, with only +12 volt, ground and remote leads connected, the amplifier is probably defective, most likely shorted output MOSFET's. In this case the amp needs professional repair or replacement.

Hope this helps.

Sep 19, 2009 | Kenwood KAC-729S Car Audio Amplifier

1 Answer

I have a dual XIA3145 580 watt amp that keeps blowing fuses


Generally, this indicates that there's at least one shorted output transistor.

Disconnect all speaker wires from the 'amplifier's speaker terminals' and disconnect RCA/signal cables from the amp. If it powers up normally, the speakers/wiring need to be checked. If it still blows the fuses, the amp almost certainly has shorted output transistors and will need to be repaired.

I'd recommend using two 10 amp fuses. The amp will power up with 10 amp fuses if there is no problem. If there is a problem, there's less of a chance of doing more damage by using the 10 amp fuses.

Let me know if you have any other questions.

babin_perry@yahoo.com

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Sony XM1002HX keeps blowing fuse


AUDIO OUTPUT TRANSISTOR OR IC IS SHORTED

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Repair service for AG1000 Zapco Amp.


Is it blowing the three 30 amp on-board fuses?

To have 3 speakers bridged, each speaker must have at least a 12 ohm impedance (assuming that all speakers are connected in parallel). If you're running a load lower than 4 ohms (mono), the amp will likely fail.

The fuses don't blow right away because they are cold at first. As they heat up, they can blow more easily (even though the current draw hasn't increased).

Aug 10, 2008 | Car Audio & Video

1 Answer

HOW TO FIX A BLOWN CHANNEL?


The power supply appears fried and possibly one or more of your output channels. Unless you are good at repairing this sort of thing then I would suggest you save your self a lot of hair getting pulled out in frustation and go to a repair guy and let him pull his hair out instead. Good luck.

Apr 22, 2008 | Kenwood KAC-729S Car Audio Amplifier

1 Answer

Lanzar amp


If it keeps blowing fuses then #1 its internally damaged or "blown" .. Or #2 i would make sure you have the battery power hooked up to the + terminal and the ground wire running from the car body to the - terminal.. so if its hooked up correctly and keeps blowing fuses then it requires repair.. I wish i had better news but thats all it can be...

Aug 20, 2007 | Scosche Industries Scosche High...

1 Answer

Car Amp keeps blowing fuses


The reason why fuses blow is that the current is too much. Is the fuse rating according to the specs ? If yes then ... One or more output power transistor (or audio power IC) may be shorted. have it checked before replacing another fuse as this might cause more damage.

May 22, 2007 | Profile CL1200 Car Audio Amplifier

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