Question about Sony XM-2002GTR Car Audio Amplifier

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Protection lights stays on and my radio no longer ejects after the installation

Some one hooked up my system for me and like when we first turned on the car i tried to change cds and it wouldnt change it wouldnt come out. and the dude was sayin somthin bout iterference. then my when i checked the amp light it was on and blue. and it stayed on even when i kut off my car. any one got any solutions?

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The amp is staying on with the car off because the amp turn on lead (remote) is being powered to 12v constant and not 12v switched (from the radio or ignition). CD's not changing could indicate a problem with a defective head-unit.

Posted on Aug 10, 2008

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Protection light flashing and alarm sounding, unit was running and the unit just quit and the flashing light and alarm came on


Will the unit power up without the cb radio? I would suggest a short somewhere in the system if the protection light continues to shine bright.

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I have a 1400 watt cruch amp & i hooked it up myself. when i turn the radio on the power wire on the amp comes on, bt if the audio cords are hooked up, the protection light comes on. if i dnt hook the...


Should the amplifier go into protect mode, simply disconnect all RCA and speaker leads, while keeping +12 volt, power ground and remote leads connected.

1. Now turn the amplifier back on, and if the diagnostic LED lights, the amplifier has an internal fault.

2. If not, plug the RCA cables back, and reset the amplifier. If it goes into diagnostic now, the fault lies in the input, either with bad cables or source unit.

3. If the amplifier seems fine with RCA cables plugged in, connect the speakers, one at a time, and if one of the speakers or its wiring is faulty, it will activate the diagnostic
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We installed a jvc kd-s26 into my 2002 trailblazer, I believe correctly but the radio will only turn on for about 15 seconds and then powers off.... I do not understand


There are two power wires for the receiver. One will light the clock and eject the CD when the eject button is pressed, but will only stay on a few seconds and this is connected to a battery source. The other power wire actually turns on the radio and is connected to a source controlled by the igition switch Check the wiring diagram to see if you have both wires connected correctly.

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Every time i hook up my coustic car amp the radio will turn on with out the radio on


THE GOAL HEAR IS TO DETERMINE IF THE INSTALLATION IS CAUSING YOUR PROTECTION FAULT OR IS IT THE RADIO OR AMPLIFIER ITSELF HAVING INTERNAL DAMAGE. REMOVE THE RCA INPUTS AND DISCONNECT THE SPEAKERS, THEN POWER THE AMPLIFIER UP WITH THIS NO INPUT, NO SPEAKER LOAD CONDITION. IF IT STILL POWERS UP ON ITS OWN, THEN REMOVE THE REMOTE TERMINAL COMING FROM THE RADIO. IF THE AMPLIFIER SHUTS OFF, THEN YOU MAY HAVE A SHORTED TURN-ON TRANSISTOR WITHIN THE RADIO AND IT IS OUTPUTTING THE DC NEEDED TO TURN THE AMPLIFIER ON. IF YOU REMOVE THE REMOTE TURN-ON FROM THE RADIO TO THE AMPLIFIER AND THE AMPLIFIER STAYS ON, THEN THIS POINTS TO A FAULT WITHIN THE AMPLIFIER AND IT WILL NEED TO BE SERVICED. MAKES SURE THAT THE AMPLIFIER AND RADIO GROUNDS ARE 100%. LET ME KNOW IF YOU NEED FURTHER ASSISTANCE.....V

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The protection light stays on and the ground is hooked up, the power wire is hooked up, the speaker wires are good, the audio cables are good, the remote wire is good. but the light stays on when the radio...


The ground wire must be bare metal to bare metal and it must be tight. If this is new installation I would start by looking at the spot where the ground wire is bolted to the frame. If the paint on the frame was not removed in that area, remove it and reattach the ground wire.

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I really need ur hlp badley


If the protection light is lit, the amplifier probably has shorted output transistors. To eliminate other possible causes, read through the following page. Let me know if you have any other questions.

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