Question about Kenwood KAC-9103D Car Audio Amplifier

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Repairing a kenwood amp

I'm trying to repair this kenwood amp because im not getting anything when its connected. I need advice as far as do it your self maintenance. any suggestions?

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Re: repairing a kenwood amp - Kenwood KAC-9103D Car Audio Amplifier Car Amplifiers

Check for dry joints. mien had same problem

Posted on Mar 22, 2008

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Re: repairing a kenwood amp

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 is below ~11 volts, you need to check the wiring feeding whichever line is too low.

Posted on Dec 20, 2007

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Need more specific information on the problem. Try contacting Kenwood tech support for repair info or to download manuals. etc.

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Im not sure wich the right channel to use on my amp to bridge it to my subs, because it goes (+ + , - -) as opposed to (+ - , + -). do i use the possotive on the far left and the negative on the far right...

Hi there. It should definately be the far right and far left, no doubt. Ther should also be a awitch to drop the frequency to about 80htz. If not, the amp should drop the frequency by just connecting it the way you wanted to

May 07, 2009 | Kenwood KAC-9152D Car Audio Amplifier

1 Answer

Blown amp, on circuit board, connecting fuse and power connect.

These amplifiers dont employ reverse polarity protection that most higher priced ones do.
The amplifier(s) are definately in need of repair - probably power supply - IF boss sells parts.
Chances are, however, the repair will meet or exceed the cost of a new (appropriately rated) entry level amplifier.
Just about anything can be repaired.... question is, are you willing to pay?

Jan 14, 2009 | Kenwood KAC-X501F Car Audio Amplifier

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If it's only 2 months old, it should be under warranty. Have you tried to get it repaired under warranty?

Any car audio repair shop should be able to repair it.

If you want to repair it yourself, it's possible but you'd need basic test equipment and soldering/desoldering tools.

The following page shows you the basics for amp repair. Your amp is somewhat different than the one shown but the troubleshooting/repair procedure would be similar.

Basic Amp Repair Primer

May 16, 2008 | Kenwood KAC-8103D Car Audio Amplifier

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No Sound out of my speakers

The last Kenwood that I had witnessed with a flashing power light was defective. It also caused the subwoofers to move slowly back and forth. More than likely, you have an internal issue with the amp. Call Kenwood, and see how much they would charge to have you send the amp in for repair. Or pick up a new amp.

May 11, 2008 | Kenwood KAC-959 Car Audio Amplifier

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Kac - 929 kenwood 1000 watt amp

Cold solder or lose connection in the amplfiier, or a poor connection with the wiring. The vibration of the movement of the car is causing the intermittants.

Jerry G.

Apr 19, 2008 | Kenwood KAC-9152D Car Audio Amplifier

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Kenwood amp

how big the amp dont forget those thing take lots of juice you need a big wire front battery to amp when the engine running it should be 13.8 to 14.5 volt if anything less than that battery wont get the charge up and check for good ground cheers and dont forget to rate this p.s any other question about our charging system or anything else dont hesitate im ear

Jan 18, 2008 | Kenwood KAC-9102D Car Audio Amplifier

1 Answer

Blown amp

hi, try connecting the power b+ and gnd and remote turn on cables only (dont connect rca input or any spks), if amp doesnt turn on you will have to take in for repair. no need to buy new amp, coz problem could be a burnt pcb track or even a faulty remote or FET circuit.if amp turns on then connect other cables slowly and monitor the power lite as you do connections. you may have a faulty spk load that will cause amp to stay off or in protection mode. cheers

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