Nintendo NES with NESRGB mod Optimal OSSC Timing:


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Input Cable: RGBS SCART Cable

OSSC Firmware = 0.81a (use 0.81 if you don't have audio version of OSSC)

Hardware: Front-loader NTSC NES with NESRGB mod


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Note: Although these settings are based on my NES front-loader with NESRGB mod, the only values that may or may not differ from other NES hardware are the following:

1. Sampling phase (this always will be restricted to a case-by-case basis).

2. Advanced timing for 256x240's H. backporch.

3. Advanced timing for 256x240's V. backporch.

Everything else should be universal.


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Video in proc  >

Video LPF = 9MHz (SDTV)


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Sync opt.  >

Analog sync LPF = 2.5MHz (max)

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Output opt.  >

240p/288p proc = Whatever linex mode you prefer.

LineXx mode = 256x240 optim.

If you scroll down to "256x240 aspect", you can choose between 8:7 (square pixels), or 4:3 which technically isn't accurate to 4:3, but you might prefer it anyway over square pixels. 


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Sampling opt.  >

<Adv. timing  > 256x240:

H. samplerate = 341
H. synclen = 25
H. backporch = 40
H. active = 256

V. synclen = 3
V. backporch = 14
V. active = 240


Back out to "Sampling phase" and adjust until all pixels are sharp with the least amount of color bleed and aliasing. Mine looked perfect at 78 degrees.


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Note: You can choose to add in vertical masking by navigating to the "Post-proc." menu and adjusting the "Vertical mask" to whatever value you like. Just keep in mind that some games like Legend of Zelda use the full 240p active area for graphics. 


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