Question about Kenwood KAC-9102D Car Audio Amplifier

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No power to the amp i touched the power wire to the side of the amp

I touched my power wire to the side of my amp on accident. Right above the part where the power wire goes i sliped on my tail gate and it touched metal to metaland now i have no power to the amp i checked all fuses but nothing works is there anything i can do to fix that amp my other one still works so i know its the amp

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  • hanna1990 Sep 25, 2008

    i did the same thing and i bought it two days ago how do you fix it?

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  • 631 Answers

It probably burned a trace on the circuit board.

With the amp hooked up normally and the head unit on (so the amp will have remote voltage), do you read 12v DC anywhere on the case of the amp (black meter probe on the ground terminal of the amp)?

If there is no voltage on the case, confirm that you have 12v on the B+ and remote terminals of the amp (black probe on ground terminal of the amp).

Posted on Aug 25, 2008

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Was in a accident an amp came loose an ripped out remote wire that's on a separate switch, repaired remote wit sodder jumper an amp powers up again! But jus makes a crackly noise through the sub an...


Hi There. Any impact damage that was able to rip your ampifier loose may possibly have done some damage inside the amp. I would reccomend that you disconnect your amplifier and take it in to a reputable dealer to be bench tested. They will be able to give you the diagnosis.
P. S. If ypou feel that you are technically minded and are able to solder proffesionally, then open your amplifier. Check the board for breaks or hairline cracks under a light. Repair if any are found. Check for broken solder joints on the reverse side of the board. Repair any that you may find. Stripping your amplifir is NOT RECOMENDED and WILL VOID your warranty.

Hope you solve your problem. :)

Aug 12, 2010 | Kenwood KAC-9102D Car Audio Amplifier

1 Answer

Blow out amp


try a basic connection connect

positive from car to positive of amp

ground to ground

and positive of car to remote of amp

see if it turns on

also check the fuses in the car
check for voltage on the wires

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1 Answer

AMP WONT TURN ON


Hi.

A short on Amp power contact can blow the internal power adapter. Before deciding if to replace or repair the amp, check if it has an external fuse mounted at the back side of the amp. In that case replace it.

Also ensure that the wires that you are connecting to the amp are still powered. Read Volts on wires before connecting to test the amp.

If the Amp has blown, then the damage will be located in the power supply circuit, and can be repaired testing and replacing few components.

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Kenwood KAC-9152D I THINK IT SHORTED OUT BUT HOW CAN I FIX IT?


Either can either do it yourself like the guy above or take it to your local car audio dealer :)

Upfront Audio

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1 Answer

Kenwood amp


Yes there is!!! I have that same amp and what probably happened to you happened to me, if you seen some black smoke or smelled like something was burning then heres what you do, Remove the cover under the bottom of the amp, there are alot of little screws so dont lose them!!!, you will see a wire that look like it ws fried and it will be broke apart, so get you a GOOD sautering iron and sauter the wire back together is you cant get it to sauder back then just take a piece of wire and tie the two broken pieces together and then your amp should work again!!

Sep 17, 2008 | Kenwood KAC-9102D Car Audio Amplifier

1 Answer

Ultra linear ul-600hc


If the amp is in protect mode, it probably has shorted output transistors. To eliminate other possible problems, do the following. I'll assume that you've checked the amplifier's on-board fuses.

With your multimeter set to DC volts, the black meter lead 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 lead 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 the voltage remains near or above 12v, disconnect all speaker wires from the speaker terminals of the amp and disconnect signal cables from the amp. If it powers up, the wiring needs to be checked. If it still shuts down, the amp almost certainly has shorted output transistors and will need to be repaired.

Let me know if you have any other questions.

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1 Answer

Shorted a speaker wire together


Check the fuse. If its not blown rewire the ground to bare metal.  make sure the power wire is the right gauge aand connected right

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it is probably the rca inputs on the amp may have fried. was your cd decked turned up loudly before the power went out? did any wires accidently touch each other? If had worked fine and then suddenly stopped, than either a wire came loose or the inputs fried. try using different cables and I also suggest disconnecting power for 24 hours and then reconnect. If the green light is on then it is getting power and the problem is in the rca cables or the inputs

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1 Answer

Amp in Protection Mode


With your multimeter set to DC volts, the black meter lead on the ground terminal of the amp and the head unit on (so the amp will have remote voltage applied), touch the red lead alternately to the B+ and remote terminals of the amp. If the voltage drops below ~11 volts, you need to check the wiring feeding whichever line is too low.


If the voltage remains near or above 12v, disconnect all speaker wires and signal cables from the amp. If it powers up, the wiring needs to be checked. If it still shuts down, the amp likely has blown output transistors.

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