monitor

Y have a monitor KTX 17 model # CAG-665SG
SERIE NO : Y07600258C Y have a problem with colors. The technician I spoke to said
that I need a code to be able to enter in the programming
but can’t find this information anywhere. Also,
KTX company’s site doesn’t work anymore.
If someone could help me I would be very happy.

Be well.
thanks