Question about Sony XM-2200GTX Car Audio Amplifier
Ok i have a Sony XM-2200GTX and everything is hooked up right i made sure the ground is right i had sound b4 everything was fine then one day turned the car on and everythin shut off is there anything i should check or buy?
I'll assume that you've checked the amplifier's on-board fuses.
With your multimeter set to DC volts, the black meter lead on the ground terminal of the amp (not on the point where the ground wire connected to the vehicle) and the head unit on (so the amp will have remote voltage applied), touch the red lead alternately to the B+ and remote terminals of the amp. If the voltage is below ~11 volts, you need to check the wiring feeding whichever line is too low.
Posted on Nov 05, 2008
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Posted on Jan 02, 2017
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Sony generally drives their power light from a source that does not rely on the amplifier's switching power supply. This means that it's not a good indicator as to the health of the amplifier.
As long as you have B+ and remote voltage, it will light up. Since you've tested the speaker and the signal source, I think the amplifier is likely defective.
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