Question about Legacy Audio American Legacy II LA290 Car Audio Amplifier

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Car audio amp (?) issue

My JBL car stereo head powers on, can change stations and shows that the CD is functioning...but the only sound coming out is a constant beeping from the speakers. There was plenty of warning regarding trouble coming as the sound would go dim, sometimes off and occassionally pop and make other odd noises unexpectedly before this happened. Any clue if this might be the head or the amp? Is there a way to remove the amp and have it tested? Any help is appreciated. Thanks!

Posted by tlewiss12 on

  • tlewiss12 Aug 11, 2007

    Great to receive a response and then followup so quickly!
    The guidance is appreciated. One small snag...this is a Toyota made model with proprietary harness wiring. No one in town, not three radio shops nor two toyota dealers I visited had the ability to confirm the condition of the amp due to this wiring configuration.
    Now I'll pull the amp out of my OTHER toyota and plug it in to check...wish me luck!

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To me, it sounds like your "Output Devices" in the MAIN Amp have gone faulty. BUT check the OUTPUT directly at the Head Unit & then the Amp's terminals to make sure.. if ya dont have any signal comming out of the "Head Unit" than thats ya fault.. however if that has a good signal out,there, then it's gotta be ya Main Amp. Ya can check to se if there is output with a small speaker with wires on it, or my favorite an modified earphone, with the wires ends exposed so ya can "Touch" them to the Output terminals/Plugs etc, of whatever ya wanna test. NB: Only test at a low level output.

Posted on Aug 08, 2007

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