It can convert CGA/EGA/VGA/YUV Component input Signal to HD Monitors (CRT Monitor LCD Monitor PDP Monitor) with VGA interface (VGA video signal), and automatically scan CGA / EGA / YUV signal, and VGA output signals.
www.ebay.co.uk
**** This is assuming your screen is a VGA one as I assume ? ****
This will allow you to operate an LCD in the cab , These can be a pain to set up sometimes !
Hope this helps,
Dave.
P.S Post a pick of the connectors on the screen so we can see what you have.