Question about Kenwood KAC-7202 Car Audio Amplifier

1 Answer

Kenwood kac-7202 i was riding and my subs just went out, i check all cables and i cant find anything, the amp comes on red light in the triangle and fan blows, but no bass what could it be.

Posted by on

  • ekopel Jul 17, 2008

    I have the exxact same problem...for like 2 minutes, it would only output bass if it was more than 50% volume. I ordered a new HIGH to Low converter...maybe thats it?

  • Anonymous Sep 24, 2008

    i have the kac-7202 kenwood amp and im not sure if the red light is sopposed to be on because my subs pump. the louder i turn it up on my deck the fuse on the amp blows, everytime. what the hell. can someone answer this?



×

1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    MVP:

    An expert that gotĀ 5 achievements.

    Governor:

    An expert whose answer gotĀ voted for 20 times.

    Hot-Shot:

    An expert who has answered 20 questions.

  • Expert
  • 109 Answers

Nope it's not a high-to-low level converter problem, it's most likely a problem with one of two things. 1) either you've blown the output stage in the amplifier, or 2) you've hooked up your subs wrong and your amp is seeing to low of an impedance. The amp is supposed to be 1ohm stable, but we had the same problem. When the indicator light goes red it means that the amp has gone into protection mode, now you have to figure out why. If something in the amp goes bad or just disconnects from the board it will cause power protection mode. If you fry something on the board because you are running the amp to hard or at the wrong impedance it will go into thermal protection mode, however there's no simple way to figure out which has happened.

Have you tried hooking up some different subs to see if the problem remains? try this. If the problem no longer happens then you know it's your subs, if it does still happen then you'll know it's an internal problem.

Years ago I had a Kenwood KAC-821; long story short, I melted the main power wire right off of the board, everytime I turned the system up the amp would shut down.

Take you amp to an authorized dealer and have them bench test it for you.

Let me know what you find out.

Posted on Aug 19, 2008

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Kenwoood kac-7202 redlight/no output


you blew the output Ic's (amps one or more ) you can fix this by replacing the output IC's

Jan 29, 2014 | Kenwood KAC-7202 Car Audio Amplifier

1 Answer

Have a Kenwood KAC-9104D the red triangle is flashing


maybe when hook up something sorted and blew the sub side .I have seen it happen

Nov 27, 2009 | Kenwood KAC-9104D Car Audio Amplifier

1 Answer

KAC-7202 will not put out sound. Put in other amp works.


When you switch on the amp did the main amp ic produce heat. If does not change the main amp ic.

Feb 13, 2009 | Kenwood KAC-7202 Car Audio Amplifier

1 Answer

KAC-7202 Major feedback after a few minutes of running.


you might try unplugging the wires from the sub, turn it back on with the wires disconnected- if the noise comes back the amp is probably bad - if the noise doesn'tcome back -turn your head unit off and reconnect the sub- if the noise comes then your sub's voice coil could be shorted- if the noise comes back you should try a different speaker to compare- if the noise still there with the test speaker your problem is definately the amp.
If these suggestions don't help please e-mail me at Merle840@aol.com i will be glad to help. Please give me a good rating if i have been able to help you M. MERLE

Oct 12, 2008 | Kenwood KAC-7202 Car Audio Amplifier

3 Answers

Kenwood KAC-7202 wont turn on


I have found the problem to my Kenwood KAC-7202. The amps fan was the only thing that would come on thats it. So I started checkin zener diodes cause all transistors checked out fine. So I remember readinf about a guy that had same problem and took it to a shop and they said it was some diodes. Well, thats what I was thinkin or the transformer. It turned out that 1 zener diode was no good, diode D9 1ss133. I took a zener out of an old vcr I use for parts and put it in and the fan came on as usual then the red light. Then I hooked my mp3 player to the rca input and hooked up some speakers and it works great. Hope this helps you other guys with the same problem. Check your zener diodes with a digital volt meter, if you get any measurement other than the reverse impedance which will read between 600 and 1200 ohms some lower or higher and then reverse the leads on your meter and if you get any reading it's no good and the reading will be 0-50 cause mine read 047 ohms.

Feb 09, 2008 | Kenwood KAC-7202 Car Audio Amplifier

1 Answer

Multipal amps


make sure your speakers are connected correctly if subs and are inside the box then check connections also at times the rca at the back of the head unit can disconnect. if power light is on then error is either speakers not connected correctly, rca faulty or not connected or speaker output on amp is blown

Jan 03, 2008 | Kenwood KAC-7202 Car Audio Amplifier

1 Answer

Kenwood KAC 7502 Amp trouble


Exchange the amp it is going into Protect. But your sub may be causing this problem if it is shorted. Make sure your subs are wired to at least a 4 ohms. Only a shop can tell you for certain if your sub is shorted or not. But if you are smelling smoke then that amp is already toast.

Jun 26, 2007 | Kenwood KAC-7202 Car Audio Amplifier

1 Answer

Off and On at mid and high volumes


sounds like you have a problem with your grounding on you amplifier. check for shorts on your amplifier and the place where you have it grounded. (or check the power wire also.)

Nov 01, 2006 | Kenwood KAC-7202 Car Audio Amplifier

Not finding what you are looking for?
Kenwood KAC-7202 Car Audio Amplifier Logo

409 people viewed this question

Ask a Question

Usually answered in minutes!

Top Kenwood Car Amplifiers Experts

Matthew Spark
Matthew Spark

Level 3 Expert

1042 Answers

Tygh Duval
Tygh Duval

Level 2 Expert

290 Answers

Pieter Vleeshouwers

Level 3 Expert

1423 Answers

Are you a Kenwood Car Amplifier Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...