Blew my head unit, help!
Printed From: the12volt.com
Forum Name: Car Audio
Forum Discription: Car Stereos, Amplifiers, Crossovers, Processors, Speakers, Subwoofers, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=18579
Printed Date: May 23, 2024 at 4:40 AM
Topic: Blew my head unit, help!
Posted By: wmosher
Subject: Blew my head unit, help!
Date Posted: September 06, 2003 at 6:40 PM
Ok. Here's the scenario. In my shed, i have a 12V converter. I have never had problems before, i know i had everything wired correctly. well, my HU plugged in, listening to music. I also had an amplifier, that i was working on, plugged in. I had to make a samll solder to connect two little pieces. I went to take the board out of the casing completely. when i was unscrewing one of the screws to take out the board, i accidently rubbed the screw driver against something, and it made a spark. the HU shut off. now it wont turn back on!?!? i checked the fuse for the head unit and its fine. when i disconnect either the power or ground wire, and then try to connect it again, it makes a spark. which i was told means there is a short or something. someone please help me. i just spent $200 on this head unit. email me at wmosher3@tampabay.rr.com THANX!
Replies:
Posted By: Ketel22
Date Posted: September 06, 2003 at 8:00 PM
you need to get a tester and check every capasitor and resitor on the board, then replace the broken one, i would advise taking it to a professional tho it is very painstaking
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Posted By: wmosher
Date Posted: September 06, 2003 at 8:42 PM
ok, thanx for the reply, i am probably gonna take it to a professional. but if its something i can do myself, i would rather.
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Posted By: DYohn
Date Posted: September 07, 2003 at 8:43 AM
You were working on it with power on? Tsk, tsk... Sounds like you have shorted out and blown something in the HU power supply - probably a transister or a diode. Take it to a shop and be prepared to get a repair estimate of around - how much did you say you paid for it? - $200.
Posted By: wmosher
Date Posted: September 07, 2003 at 10:41 AM
im probably going to do it myself. but how do i test the diodes and everything with a digital multimeter?
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Posted By: DYohn
Date Posted: September 07, 2003 at 3:08 PM
Please don't take this the wrong way, but based on your question it seems you really don't know what you're doing. I would say stop poking around inside the electronics of the head unit and take it to a shop for repair - or buy a new one.
Posted By: wmosher
Date Posted: September 07, 2003 at 3:10 PM
well, actually i would like to learn. its not worth it taking it to a shop. they're gonna rape me.
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