Screen ptr head cpu board
 

Hello
I have a problem and hope to help me solve itI have screen ptr 4100 machine and I have problem in the head cpu3 100031063v00 board can you help me for datasheet for this board to repair it .
It also has a green lamp that turns on and off. I know that it is normal for the lighting to be constant, so why does it flash?I will be very grateful to you if you help me solve this problem.
my regards🙂🙂

use terminal to connect to this board to verify it working or no