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Dumb short has disabled my sounds. Pioneer DEH-P5750MP

I was given a DEH-P5750MP as part payment for a car. While I was checking that it worked (it did) I let the positive wire hit the casing. bang! doh!
I replaced the fuse and it blew again straight away. Looking inside I found that there is a diode slot with just one wire end left sticking out of the circuit board. Could I have vaporised it? It is a d932. Any thoughts how I should progress?

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Re: Dumb short has disabled my sounds. Pioneer...

All car stereos has a"porotection"diode witch is connected between positive and negative.when it connects the pwr backward that diode get shorted to prevent more damage to the unit.
You can just remove the diode to make a test,it should work;but I recomend to replace it.

Posted on Dec 08, 2007

Re: Dumb short has disabled my sounds. Pioneer...

Yes, replace that. But 99 times out of 100 you have to replace the audio ic "chip" as well. they are notorious for frying.

Posted on Dec 07, 2007

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