Intermittent display on Pioneer DEH-P7800MP car audio
Do you have an intermittent display problem with your Pioneer DEH-P7800MP car audio? Mostly this is because the flexible cable has worn out. See the picture below.
This tip will show you how to replace this cable.
Use a flat screwdriver to pry up the top cover. There are no screws attached.
Unscrew the four screws to take out the CD mechanism.
If the faceplate is not on ejected position, apply a 5V to the motor (shown on Figure 4) to stretch out the faceplate.
Unlock the connector on the main board, take out the broken cable.
Here are the new cable and the faceplate connector. If your old connector is good, unsolder it from the broken cable. You don’t need to replace it with a new one.
Peel off the adhesive liner, adhere and solder the connector on the cable following by the guide holes. (Figure 
Peel off another adhesive liner and adhere the cable on the metal plate.
Now put everything back and test the unit.
Where to get the flexible cable? Check the links below:
http://www.partstore.com/Part/Pioneer+Electronics/Pioneer/XNP7026/New.aspx
http://parts.pioneerelectronics.com/part.asp?productNum=XNP7026
http://www.encompassparts.com/products/?XNP7026
or check on eBay.
Where did you get the faceplate connector? my flex cable is fine but the connector has bent pins. i just see flex cable on parts website but no connector.
Seu tutorial me ajudou perfeitamente. Muito Obrigado! Maringá-PR Brasil
Perfect example of what makes the internet amazing. Had the same problem, faceplate was intermittently messed up before eventually dying altogether. Installed the new cable and it’s as good as new. Thanks for the great tutorial!
TTried to do this. Pulled power harness out while the faceplate was open. Now connected it back how it was and the faceplate is stuck in the open position. Any clue?
Nick, did you ever get it figured out? I have a new cable and connector coming, and I was going to do the same thing, unplug the harness when the faceplate opened, to work on it. Now I am hesitant to do that until I hear back form you.
Is there anyway to get the faceplate open the ribbon cable is disconnected from behind the unit so the faceplate won’t come on and it doesn’t eject