Question about Cerwin Vega EXL-1000D Car Audio Amplifier
The amp used to stop working then i would turn the head unit off then turn it back on and the amp would start working again then one day it stoped and the green and yellow light blink back and forth and the amp makes a surgeing noise and makes my voltage gage for my battery go down and up over and over untill i turn amp off is it somthing that could be fixed or is it junk?
Call Cerwin-Vega and they should offer a "Flat-Rate" repair for it. No matter what is wrong with it, for a flat rate, they will fix it. If not, most any repair shop should be able to. If not, heck, I'LL buy it off ya! (I love Cerwin Vega stuff...)
Posted on Sep 15, 2007
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It's likely that the amp is defective but you should check the shield ground of the RCA signal cables before sending the amp off for repair.
Disconnect the RCA cables from the amp.
With your multimeter set to ohms, measure the resistance from the outer shield of the RCA cable to chassis ground. If it's more than a few ohms, that could be causing your problem.
If this is higher than a few ohms, short the meter's leads together to make sure the meter will go down to 0 ohms.
To check the shield ground of the head unit (assuming that the head unit is driving the amp directly), disconnect the RCA cables from the head unit and measure the resistance from the RCA output shield to the case of the head unit. It should essentially read 0 ohms.
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