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jago85 / UltraPIF_Hardware

N64 PIF Replacement Hardware (KiCad)
GNU General Public License v3.0
65 stars 7 forks source link

Flickering screen + hot N64 NTSC mode #9

Closed Roy-Meijer closed 1 year ago

Roy-Meijer commented 1 year ago

I have a PAL N64 with Tim Worthington's N64RGB and I have installed the Ultra PIF chip on it. Now when it switches to NTSC mode, the screen becomes unstable and flickering. I have noticed the flickering is specifically visible on black screens. Also my N64 becomes relatively hot.

My N64 has a MX8350 PLL chip and MAV-NUS video chip. In have installed it with the direct VCLK method and with composite video. First I removed the PIF chip and soldered on the adapter board. Next I connected JP1 of the UltraPIF PCB and then I lifted pin 3 (VLCK) of the PLL chip and connected the pad to XTAL, lifted pin 23 (mode select) of the MAV-NUS chip and connected the lifted pin to FSEL. Finally installed the UltraPIF PCB on the adapter board. Do you have an idea what is wrong?

Roy-Meijer commented 1 year ago

I found out the flicker issue is related to the N64 RGB mod