I was replacing the monitor and neck board on my WG7191, as I was removing the neck board, the palstic where the part attaches to cracked and broke!

See atached pic
I replaced both boards and hooked everything back up, fired up the machine. The monitor powered up(it did not before becasue of another issue)
The picture now has vertical lines through anything that moves.
So a few questions,
Is the broken neck piece causing those vertical lines to show up? Or is it another issue?
If that is the issue, where can a replacement be found?