Heres the response from wells:
HI KYLE
YOU'R MONITOR FROM THE PIX YOU SENT ME LOOKS ALMOST LIKE A 60 CYCLE HUM. BUT YOU CAN TRY ADJUSTING THE PIN CUSHION WITH THE CONTROL ON THE PIN CUSHION BOARD, WHICH IS MOUNTED ON THE MAIN BOARD.GIVE IT A TRY TO SEE IF THEIR IS ANY RESPONSE FROM THE PIN CUSHION ADJUSTMENT.
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Sorry im such a newbie but which board is the main, and where would i find the pincushion adjustment?
-Kyle