Help with AMX Axcent3 Controler

Hello,
I need help changing code for an Axcent3 control system installed in 2005. The unit is controled via wireless touch screen and run through an autopatch to accommodate two Mitsubishi projectors. The axcent3 sends commands via rs-232 to the projectors. They use vga as well as composite to for the dvd player and doc cam. The projectors have both gone bad and have been replaced with new Mitsubishi projectors. I tired my best to match them up as much as possible but all of the newer projectors only have s-video on video1 so im stuck using a converter which now has horrible picture quality. The Mitsubishi has a video2 that is composite that I have tested and it looks perfect! I just need to know where I need to start and a bit of help changing the code if possible it seems like a simple code fix to me. Please someone help me out with this .

This is where im hung up. I have no code for the controller and I do not have software to pull code to/from the unit.

I am located in Ardmore Oklahoma "Southern Oklahoma".

Thanks so much!

Well im stuck again spoke with a programmer today who wanted 1200+ not counting mileage/hotel costs because I do not have access to NetLinx software to see/pull source from the unit. It's starting to seem impossible to get my hands on the software for a 15 minute fix .

It does not and I didn't see any open Ethernet ports. But there is a PC near by with a serial port equipped.

The original company have no records on our installation but I may have a chance to get NetLinx Studio next week. I'll keep you up to date thank you so much for the help this far!

Turns out the unit has source code! I downloaded source using Netlinx Studio and edited two lines for the projectors inputs as they were backwards, for S-Video and Composite PROJ_SRC3 = "$30,$30,$5F,$76,$32,$0D" which is S-Video for the wd570u projector so I only had to change one number $31 for composite. The source seemed to point to SRC3 for everything related to DOC CAM and DVD/VCR.
But I am stuck once again I compile the edited source code as Axcess but I get stuck at File Transfer. When I select Compiled Axcess Source Code File I only have the option to add a Token file .tok. Any ideas?

I was finally able to get to the Axcent3 pushed code now the projector switching works great! I do have a slight problem with autoposition though playing a 16:9 video from youtube threw the picture off the sides of our 4:3 screen. This only happens when the video is full. Is there anyway to lock this? Monday I will get in there and try a few things.