Well i went to hook up my jensen ka-3 2 channel amp and i connected up the ground then right as i touched the 12v to the amp it sparked like there was a short but i hooked up a different amp and it worked fine id like to know whats wrong.
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Hello Brian, I have done a search for the Jensen KA-4400 Amplifier manual, without any luck. Sorry. However the following might be useful for you to continue the search: (1) Jensen Customer Support: 800-732-6866 (2) Go to: http://caraudio.manualsonline.com/manuals/mfg/jensen/jensen_car_amplifier_product_list.html (Be careful to copy ALL of the URL address). Then click on "Ask the membership for help locating your Jensen Car Amplifier manual"at the bottom of the screen. Then fill in the form. Good luck.
First check to see if your'e getting power to the amp by using a test light and touch the main power(12V battery) connector on the amp, test light should come on since it's constant 12v supply. Now turn on the radio and test the remote wire connector on the amp and you should have 12V(test light should come on). Also make sure that you have a good connection with your ground wire, check both connection points to make sure it's good. Now if you have power where your'e suppose to and when your'e suppose to and the amp does not power up, then it may be time for a new amp. Try wiggling the connections at the amp a bit, the solder may be cold/loose.
REMOVE THE RCA INPUTS AND DISCONNECT THE SPEAKERS AND POWER THE AMPLIFIER UP WITH THIS NO INPUT, NO SPEAKER LOAD CONDITION. IF IT STILL GOES INTO PROTECTION AND YOU HAVE VERIFIED THAT THE POSITIVE AND ESPECIALLY THE GROUND CONNECTIONS, ALONG WITH THE REMOTE CONNECTIONS ARE 100%, THEN THE AMPLIFIER WILL NEED TO BE SERVICED. LET ME KNOW IF YOU NEED FURTHER ASSISTANCE.....V
Hi the RMT is short for remote and is connected to a 12v feed taken from the remote output from the cd player, it provides the 12v needed to turn the amplifier on when required & turns it off when the player is turned off. Do not connect this to a permanent 12v feed as the amp. will be on all the time & you will have a flat battery every morning!
to be honest with you, your best bet is to buy a new amp. cheap amps are cheap because they plan on you buying another one when they don't last. save up and buy a nice amp, thats my advice. if you really want to fix this one i wish you luck, but i've never worked on an amp before, just install and troubleshooting, so in my experience this one's fried. But i'm sure it could be fixed, the question is wether or not it is worth it?
I'd be inclined to check to make sure there isn't a short circuit somewhere in the output lines. Maybe a wire is crushed against the car's body or bare wires touching or badly fitted RCA plugs. All of these things could activate the protection circuit. If you have a multimeter it would make life easier but don't forget your speakers will show up as 4 ohms so that's not a short.