Question about Jensen LXA300 Car Audio Amplifier

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Jensen LXA300 No sound, I believe that it got moist, all the lights come on but no sound. I have looked for a schematic to find out the output transistor /diode etc. Do you know where I can get the schematic for the Jensen 300 ? Thanks Jerry hagar3_99@hotmail.com

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You might try the web site ManualsParadise.com but I would suspect that if you don't know how to find the output transistors/MOSFET's just by looking that you probably don't have enough experience to do the repair that it may require. If you have indeed lost the outputs due to the unit getting wet then the outputs are probably only the begining of the problem. I think you might want to seriously consider going to a repair shop with it. If you decide to go it alone, then you might try pulling the circuit board off of the heat sink and have a look underneath to see if you can see any "rust" bridges or other problems on the underside. I wish you all the luck in the world and hope you are successful no matter which way you decide to go with it. Luck.

Posted on Apr 22, 2008

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I brought mine to the shop with the same thing yesterday. It was the fuse that was bad. If u have a glass tube fuse, maybe try replacing it. To check, remove the fuse and touch the two sides of the power wire together and if it is the fuse, the amp will kick on

Posted on Apr 16, 2008

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hook up the remote turn on wire to a switched ignition source, and your amplifier will turn on.
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If you need more help - im here.

Thanks for using FixYa - a FixYa rating is appreciated for taking the time to answer your FREE question.

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