Question about Kenwood KAC-7202 Car Audio Amplifier

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Amp Trouble I bought a Kenwood KAC-9152D amp and beeing that i dont use my car much, I dont use the amp much. One day I turned it on and all the amp would do was turn on and off, on and off continusly. I know this because the red power light flashes on and off. The sub gets a surge of some sort when the amp flashes on but relieses when the amp is off. I took the amp apart and visually inspected it. It looked ok but I dont know what I should be looking for.

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Re: Amp Trouble

Actually, it's more likely that the problem is on the outside of the amplifier than the inside. Your problem may be caused by a ground wire that's come loose from the grounding point, a defective fuse or corroded connection on the power wire, an overload of the remote input wire, or a problem with the head unit that your amp is connected to. The easiest way to troubleshoot is with a voltmeter. Test the voltage at the amplifier's main power terminal and remote terminal while the meter's black probe is connected to the ground terminal. If you find voltage dropping on one of the terminals, you can focus your attention on that wire.

Posted on Mar 09, 2007

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Kenwood repair manual

I have the Kenwood KAC-9152D Repair Owners Manual. This is my E-Mail address. send my a e-mail. & I will e-mail back 2 U w/the Manual ATTACHED

Dec 21, 2011 | Kenwood KAC-9152D Car Audio Amplifier

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I have a kenwood kac-9152d amplifer and it works just fine for about 10 minutes then just shuts off and subs dont work, about 30 seconds later my amp turns back on with the subs.

make sure it's well ventilated. If there's no air flow, then there is no way of cooling down and to protect itself it will shut off. Make sure the speakers are wired correctly as per amp specs. too many subs or subs connected improperly can draw too much current and shut the amp off, but you will notice this when you turn up the volume to a certain point and the amp shuts down.

Aug 30, 2011 | Kenwood KAC-9152D Car Audio Amplifier

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I have a kenwood kac-9152d running a 10 inch rockford fosgate power t1 and the amp keeps going into protect but i have a smaller kenwood kac-8102d running on another t1 and i have no issues with it why...

either the wiring your running is short circuting,or the amp is shot, or the subwoofer is shot, try hooking the same speaker up to the other amp. along with the other speaker to the other amp, see if the same thing happens.

Feb 04, 2010 | Kenwood KAC-9152D Car Audio Amplifier

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Kenwood KAC-9152D Car Audio amp

There could be several problems. The following page should help you determine if you have a problem with the amp or something connected to the amp.

Amplifier in Protection Mode - Troubleshooting

Let me know if you have any other questions.

Sep 17, 2008 | Kenwood KAC-9152D Car Audio Amplifier

2 Answers

Kenwood KAC-9152D monoblock

The amp says it's 1 ohm stable, so assuming the DVCs are dual 4 ohm, you should be able to connect all "+"'s together and all "-"s together, like the picture below:

As for the amp shutting off for a few seconds, it sounds like it's either:
A) Not getting enough power at high volume.
B) Overheating.

The cap on the +12V to the amp should help, but putting a meter on the +12V might tell you whether it's dropping too low (<11V).

When you first turn the volume up, how long does it work fine before shutting off? Is it with the vehicle running or not?

Mar 25, 2008 | Kenwood KAC-9152D Car Audio Amplifier

3 Answers

Kenwood kac 9152D

Usually, protection mode is caused by one of these conditions:
  • Shorted speaker outputs.
  • Speaker output shorted to ground.
  • There is an internal issue, causing DC voltage to be present on the speaker outputs.
  • Amp overheats.
  • Ground connection is insufficient for amp or HU.
I'm not sure of the history or symptoms of your amp, but those are the reasons why the amp could go into protection mode.

Mar 13, 2008 | Kenwood KAC-9152D Car Audio Amplifier

1 Answer

My kenwood amp

you need to check your wiring and check your rca wires to see if they are giving your amp a signal to put out

Mar 11, 2008 | Kenwood KAC-9152D Car Audio Amplifier

2 Answers

Kenwood KAC-9152D problem

It sounds to me like you may have burnt a trace off of the bottom of the circuit board inside the amplifier. If you know how take the amplifier apart and look carefully at the traces. To be clear the traces are the lines on the bottom of the circuit board not the component side. Look carefully they can sometimes be hard to spot. If you find one solder a jumper wire across the two points. If you take the amplifier apart take care in treatment of the output transisors along the sides.

Jan 17, 2007 | Kenwood KAC-9152D Car Audio Amplifier

2 Answers

Kenwood kac-9152d

by jump do you mean all it does is thump and no sound besides thumping noise? if so put a better ground on your amp, double grounds work the best. please reply

Oct 06, 2006 | Kenwood KAC-9152D Car Audio Amplifier

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