Question about Kenwood KAC-7202 Car Audio Amplifier
Hi, I've had this Kenwood KAC 7202 amp close a year. I disconnected it and put it away for about 2 days because my trunk latch broke. All i did was disconnect the subwoofer, power, grnd, the remote wire...(blue one) and the spkr wire that hooks to the sub...and i also disconnected the power cable from the battery...then when i decided to put it back on..the little red light wouldnt come on. so now i dont know what to do...i've tested the wires to the best of my ability and it says 12v....i also aquired a new fuse and fuse housing...dont know if that is what's making it not turn on/function properly...please help im going insane without my sub and amp:( thanks for ur time
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.
Posted on Feb 09, 2009
When your amp is something of 1000 watt it need a fuse of 25A.your amp power connection have a +12v,ground and remote.remote and +12 you must connect to your battery +.ground on your body.any amp needs a power of no less than 25A
Posted on Dec 24, 2012
the head unit on
the black meter lead on the ground terminal of the amp
the meter set to DC volts...
Do you read ~12v on BOTH the remote and B+ terminals?
Are the fuses in the amp blown?
Posted on Feb 09, 2008
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Posted on Jan 02, 2017
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If your speakers are wired for an impedance below 4 ohms mono or 2 ohms stereo, that would make it shut off. If you have a speaker wire shorted to ground, it would also cause the amp to go into protection.
If the speakers are not the problem, it may be shutting down because the voltage at the amp is dropping too low.
Oct 19, 2007 | Kenwood KAC-7202 Car Audio Amplifier
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