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.
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Re: Car audio amp (?) issue
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.
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Remove the face plate and clean the contacts on both the head and the radio. It sounds like a bad connection, The base and head use serial data to talk to each other(control).If one of these connections are bad the unit will not work properly.
Toyota vehicles have a fuse in the kick for the amp and sometimes there is located under the hood ... This is the switch turn on for the amp ... And 1 of the fuses is most likely the memory or constant power. B sure to check all fuses ... I do not have AllData pulled up . If the fuses are all good the amp or radio may be bad ... Or both ... Be sure to check all the fuses ... Many times I get clients that say allthe fuses are good and it is still the first thing I check ..Usually is a fuse ..Good Luck
sounds like a very common power wire issue. if not connected to the cigarette lighter or other continous power source when the car shuts off all memory will be lost, ie... audio settings, station memory, clock memory