I recently did an RGB mod on my N64 and for the most part, it's great. 2D games and games that run in 240p are great, but the games that use 480i tend to be blurry, and I get some ghosting. This is mostly noticeable on Majora's Mask, Donkey Kong 64, and Perfect Dark, Ocarina of time is just blurry. I cut the composite trace and I am running C-sync (I have a switch installed so I can switch to Composite or RGB. With or without the switch, the results are the same). I have several variables that I want to rule out. Is it how I did my mod? Instead of soldering to the chip, I did the under the board route and put the RGB lines there. The resistors are 75ohm 1w, and the lowest I could find at the time (radioshack). Is it my set up? I do not have a proper RGB monitor, so I am using a sync strike hooked up to a CGA to VGA scaler, and bumping it up to 640x480 (I know there are better resolutions, but I only do 640x480 to reduce possible latency). Or is there nothing I can do?
Did you use the THS7314 RGB Amp or did you just connect RGB with 3 wires? If not, then use one. Also the CGA to VGA scaler is really really bad, when using it you loose all the sharpness. Get either a proper TV or a proper scaler like the XRGB. And ofc the N64 has a pretty blurry picture even with a perfect setup.
I used the amplifier chip. So, tracking down an RGB monitor would largely fix the issue? Any ones you can suggest that are very affordable?