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[Jameson42]

VGA mode doesn't output at all without a VGA enabled bios.  Both VGA and HD mode output in RGB if you have a VGA bios installed.  The fact that the colors didn't work on your projector in RGB mode but they worked in YPrPb tells me you don't have a VGA bios installed.  If you still plan to install the sync circuit and use your box on a vga monitor, you will need a vga bios.

[leeloo5]

Ok thanks, i downloaded several vga bioses, but i haven't installed them yet.  I wasn't sure if the vga bios switched the signal to RGB but i thought it did.  In the end the only difference will be the set resolution of 640x480 on a VGA mode as to different resolutions on the HD mode.  I think i will leave it in HD mode and see if that works.  I am also looking into getting an adapter to convert YPbPr into RBG so that i can use the cable on un-moded xbox's and also since i kind of like the biod i use 4981.  if this doesn't work its not too much of a problem to switch which bios loads when i want to run it on a monitor.


Thanks alot guys for all your help, you answered all of my questions and so far it works great.  I should get the other parts next week and will add the sync circuit.

happy modding.

[leeloo5]

the IND-bios5001vga06 works great.  it looks like the circuit to build the YPbPr to RGB is way too complex and requires too many parts, i'll just have to use a bios.