pioneer DEH-P770MP

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chinkst3r

Member - Posts: 3

Joined: July 22, 2005

Location: United States

Posted: September 10, 2006 at 3:02 PM / IP Logged

my pionneer head unit went out a long time ago, and i never figured out why, i simply replaced it with an old one, but i looked at it the other day and saw that the fuse was blown so i replaced it and it keeps blowing everytime. i brought it back into the house and i have a dc power supply for my room, so i hooked it up to that, when it has a bad connection it makes a weird noise, and so it did. i think it has a short in it somewhere but i dont know where to begin, i would love to get this thing working again cause i hav another car that doesnt have a HU. any suggestions?

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i am an idiot

Platinum - Posts: 13,667

This member consistently provides reliable information

Joined: September 21, 2006

Location: Louisiana, United States

Posted: September 21, 2006 at 8:33 PM / IP Logged

You have 2 possible problems either the radio was at one time hooked up backwards and this shorted the reverse polarity protection diode which is located very near the power input plug.

Or more than likely the output Chip is shorted It is located rear dead center of the heat sink at rear of radio

the part is available here http://www.pacparts.com/electronics/model.cfm?mfg=PIONEER&model_id=DEHP7700MP&back=0&action=list_part&Cfid=667209&CFTOKEN=41757620

Let's Go Brandon Brown. Congratulations on your first Xfinity Series Win. LGBFJB

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i am an idiot

Platinum - Posts: 13,667

Joined: September 21, 2006

Location: Louisiana, United States

Posted: September 21, 2006 at 8:37 PM / IP Logged

Sorry forgot the part number PAL007 or PAL006

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pioneer DEH-P770MP

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