Question about Zapco Reference 200 Car Audio Amplifier

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Zapco ag 350

Will not power up does not blow fuse what will cause this?

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Re: zapco ag 350

Check your ground and make sure it is properly grounded needs to be a very clean paint/gum free area tightly bolted.  Next Check and make sure you are recieving your 12 volts (not running)  13 (running)    by placing your test leads from positive to ground...... then make sure your power remote from your head unit is putting out voltage. 

Posted on Oct 13, 2007

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If my zapco amps break down will the company repair them for free

Only if its under warranty. If you are the original owner with a reciept from an authorized dealer then they will warranty it for free. You can find information here--->

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How many rms does my amp have.....??????

4-channel, 4 ohms: 4 x 50 Watts
4-channel, 2 ohms: 4 x 90Watts
Stereo, 4 ohms: 2 x 180 Watts
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S/N Ratio: >90dB
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Storing as in Distortion? If that's the case lower the output gain from your amp until it is suitable to you ears. It might be all the way open, besides this should be adjusted system to system.

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1 Answer

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.

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Sparks up with power wires no turn on

If your car battery was not disconnected when the amp was installed them your amp has blown, it could just be a fuse or at worst the circuits inside have fried. Check your fuses if not take it to a certified car audio shop and ask them to have a look at it for you. Need more information to help you bruv, but from what you have said it has been connected with the car battery still connected

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Hi this is tech crazy.I find this to be your apt solution for the problem posted

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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).

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Go here first Good Luck

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