I don't know if the codes are different on the 42MP3 vs. the 50MP1, but for the 50MP1 there are NO discrete codes (other that what is available on the remote itself -- on/off etc). I have contacted NEC and have voiced my dissatisfaction with this oversite. This is a major problem when programming macros on the Pronto to switch sources on the TV/AV receiver etc. I can email you my CCF if you want to see how I worked around the problem.
I talked to NEC customer support about the RS232 access. The plasma comes with a CD that has a program that will send codes through RS232 (Serial port) to the plasma. You can set just about anything using the program. You can also set up schedules and timers to do any task. Why they didn't set up specific IR codes for these same actions (discrete codes) I'll never understand. Someone wasn't thinking....
I'm looking for the codes too...doesn't look too promising. It's pretty lame to have a device with this much tecnology init and have to toggle through to select the right video input. If you are just wanting to toggle between HD/DVD and Video then you can hack it on the device you want on the video input to go HD first then go to Video....ugly.
A forum community dedicated to home theater owners and enthusiasts. Come join the discussion about home audio/video, TVs, projectors, screens, receivers, speakers, projects, DIY’s, product reviews, accessories, classifieds, and more!