E-8709 COMMUNICATION ERROR

Hello Guys

i was reading the forum about this problem, and all i want to know is, if the correct piece that i have to replace for my CDJ 2000(first model NOT NEXUS) is the mainboard DWG 1660. 

i have the same problem after 7 years of care use, i have this issue. The needle appears in intermitten way, the light of the jog wheel are in off, and the screen display shows "wait" all the time and the CDJ never start.

i was reading all the forums, and all says that the problem it's the main board but nobody informs the correct name of the piece, to buy it.

Can you please confirm that? i repeat i have the first model of the CDJ2000, not the nexus model.

i'll appreciate a prompt answer

thanks a lot