Thanks Mr. Grumpy. You have been very helpful. That wiki-site came in handy.
I'd rather ask a stupid question here than at the online retailers:
Can the lcd + controller still operate without any keypad connected? Basically no inputs to the controller other than the video feed telling it what to do with no OSD menu pop ups.
http://www.purdyelectronics.com/pdf/ANDpSi020TD-LED-KIT.pdf