pioneer 8400 not powering forum newbie

i have a PIONEER deh-p8400mp, 6 years old, and then all of a sudden, it powered down. i tried to turn it on and it wouldnt turn on at all, and then 10 seconds went by, and it came on and lit up for about 2 seconds, and then suts down. it wont come back on at all, anf then it did the same thing when i pressed source to turn it on again. now it wont do anything at all. i KNOW its not wiring, i checked all grounds , constant power yello, red , etc. everything is fine. it just wont do anything now. if there is a do it yourself fix i know i can do it, just need to be instructed as to where i can get the part and how i do it roughly. any help at all would be fantastic, cus i know these old head units are the good ones. thanks sooo much in advance. --jeremy

The ribbon cable that connects the face to the motherboard is broken.     The part is available for about 12 dollars plus shipping. 1-800-421-5080 Part number GXY1005 it comes with instructions

thanks! i found a link to get it online for like 19$ . i just fooled with the cable and then plugged it back in, and the face did move about 1/8" then stopped moving. so its gotta be that. i hope the part comes with instructions. theres screws everywhere! if anyone know of the link to take it apart so i can get a head start it be great. thanks!

     The ribbon cable comes with detailed instructions, including pictures