Question about Alpine PDX-1.1000 1000W x 1 Car Amplifier Car Audio Amplifier
The main thing that comes to mind is whether you've checked the in-line fuse on the positive wire. Most amp installations are supposed to have a fuse within 1ft of the battery terminal for just such a reason. Next, if you have a voltmeter of some kind (or know someone who does), check to see if you still have 11VDC-14VDC at the power terminals of the amp. If you do, then check the remote turn-on lead (which is supposed to connect to either your head unit or the ignition). If my memory serves, the remote wire should be high (about 12V) when the amp is being told to turn on and low (less than 2V) when it's being told to turn off.
Posted on Jul 29, 2008
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Posted on Jan 02, 2017
SOURCE: car amp wont turn on
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 Jul 29, 2008
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