Question about iLO XM-MP3-CD Car Stereo

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No sound coming from head unit

I was installing a stereo i got from wrecker's it worked when i got it. i got half way through wiring the speaker's and had to go pick someone up so i put tape around the last speaker that needed to be wired i thought it was the positive but was the earth so it has triped out on my travel and i cant find a reset button, iv'e still got power going through head unit just no sound is it fixable. from jack

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You may have blown the amp IC in the radio. If one channel gets grounded out, all the channels will stop working in most cases. It is fixable, but you need to verify that it is the amp IC that is bad first.

How old is this radio? Most of the car stereos that are less than 10 years old do not have an earth ground on the speakers. They have about 6 volts (+/- a little) on each of the speaker outputs from the radio. If you have a voltmeter you can check this yourself. Put the ground probe of the meter on the ground wire or anyplace grounded to the chassis of the car. Then use the positive probe to check all 8 of the speaker wires. The positive and the negative wires should all have around 6 volts on them. If just 1 wire out of all of them doesn't have that voltage, then you need to replace the amp IC.

I have never seen a car radio brand of "iLO" so I can not tell you what type if amp IC it uses. You will need to take the radio apart and look at the part number printed on it. It will also require some good soldering to remove the old one and put in a new one. It must be done very good or you could cause more problems. If you have any doubt about your skills in these areas, please just take it to a service center and have them check it and fix it. They will give you an estimate before you need to commit to a repair.

Posted on Feb 06, 2009

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