Question about Kenwood XXV-02A 4 Channel 25th Anniversary Power Amp Car Audio Amplifier

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Fuse blew on on cable coming from batter, replaced fuse now my kenwood excelon ddx7015 and amp xxv-02a wont power up , but when i test the fuses they have power

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  • Perry Babin May 11, 2010

    Yneed to confirm that you have sufficient power supply voltage. With your multimeter set to DC volts, the black meter probe on the ground terminal of the amp (not on the point where the ground wire connected to the vehicle) and the head unit on (so the amp will have remote voltage applied), touch the red probe alternately to the B+ and remote terminals of the amp. If the voltage is below ~11 volts, you need to check the wiring feeding whichever line is too low. If both the B+ and remote turn-on lines are low and your battery is fully charged, you may have a bad ground connection.

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What size fuse are you using? You need a 30-
amp at least and #8 to #10 wire I would go
with the # 8 maybe lower, if it blows a fuwse
now you have a shorted output in your amp.
May This Will Help.
















Posted on Sep 09, 2009

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Hello Melissa,

The first thing I would check is if your fuse is okay. If your fuse is blown replace and try to turn on the radio. If the fuse is good have the radio taken out and have it bench tested. take the power wire and the memory wire put them together and apply power to them then take the black wire and connect it to ground if the radio turns on then its okay and he fried something else. If the radio doesn't turn on then chances are that he fried it.

You can use a car battery to test your radio or a portable boost jumper.

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I do believe that error is a short between the positive and negative terminals. Check your wiring and measure with with a ohm meter, it should be more that 1, if not 2 ohms. With the wires from the speaker termanils removed and the amp off check the condinuity between the two terminals, there should be none...if you have some that thats where the short is occuring and work needs to be done on the amp to fix the problem

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