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Question about Jl Audio 250/1 Car Audio Amplifier

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Please help Ok I had my amp hooked up and workin for some time now and just the other day the fuse in the wire blew. So when I replaced it and now the power on light comes on for a few seconds and shuts back off. I thought I had a bad connection somewhere in the ground or hot wires but i checked that and its not the problem.

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Check to make sure you speaker has not shorted. Try a different speaker. If this is not the case you could have an internal shorted transistor inside of the amplifier. or in some cases both. If it is in the amp and you are comfortable working on the amp remove the cover and along the side connected to the heatsink. You will find the smps and the output transistors. use an ohmeter and check across the three legs one way you sould get one reading and if you flip the leads you will get another. if you encounter no resistance, no matter which way the leads are placed. That transistor will probaly need to be replaced. But check the speaker before you do anything. and the wires going to the speakers.

Posted on Aug 03, 2006

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