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Pioneer DEH-840MP & DEH-850MP Both Appear Dead

I have one each of these models in the shop with the exact same symptom. Both appear to be dead. In both cases if you hand wind the power face so it is open and then power the unit with 12 volts to the yellow and red wires, the face will close automatically. That is the only "sign of life". Neither of these units will respond to any buttons nor do you see the displays light up. Any help would be appreciated. Thanks, Mike

Reply to
techdrive
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You're going to need a schematic for sure!

Reply to
Jumpster Jiver

There is a service Bull on this. you will need to order the flex cable mod for the front panel.

Reply to
malice007

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