Started by Bostich, August 29, 2005, 08:22:17 AM
Quote from: DarthCloud on December 02, 2007, 04:11:32 AMI might be wrong but i'm pretty sure you need an NTSC nes to do this mod cause pal nes have a special cpu and ppu witch run at a different speed than NTSC NES/FC.For modding a pal nes with RGB ppu you will need to swap both cpu and ppu and also change the clock.
Quote from: davidleeroth on December 03, 2007, 08:00:00 AMThanks, don't know why the thought never crossed my mind before starting the mod. So I did some quick reading about the CPU's and it seems the US/PAL CPU's have a different divider (12/16) respectively) to achieve the clock. I just was thinking what if I change the crystal to 28,636363Mhz which then would be divided by 16 to get the NTSC clock 1,79Mhz, would that work? Or would I then need a separate clock for the PPU?Or does someone have a spare NTSC CPU they want to sell me?
Quote from: DarthCloud on December 03, 2007, 08:46:53 AMAlso You really need to swap the CPU, changing only the clock will not work since the CPU is designed to work at a certain speed. So changing the clock for a lower or faster one is likely to fail.
Quote from: Moosmann on December 07, 2007, 06:14:21 AM@davidleeroth: I have a NTSC CPU & Crystal for sale, please send me an eMail.Greetings Markus
QuoteMoosmann, I get vertical stripes in some games as well, but they only appear with my RGB monitor. My Sony TV doesn't have even a trace. The stripes are grey on black areas like intro screen in Probotector II.
Quote from: Moosmann on November 12, 2005, 07:19:54 PMThanks for this info.I know, "The Immortal" don`t work. The PPU from "Sharp Famicom Titler" use the same color palette and it is a licensed Famicom.Bye Markus
Quotedid you every do the rgb 3do mod and put that pcb board i made to use moosmann?
Quotedid you check out my post about the powerpak not working correctly with the rgb ppu in my rgb modded nes?if so any ideas?
QuoteRight? I hope I got that correct...
QuoteI mean, is the RGB color palette the same on all of the R-x2C03x PPUs and on the PC2C05-99 PPU?
QuoteJust wonder if my PowerPak will work with it though...
Quote from: tsenzen on June 08, 2008, 10:28:04 AMQuoteJust wonder if my PowerPak will work with it though...yes the power pak works perfectly, i have to reset every now and then if theres some random horizontal line distortion which is just a powerpak symptom... otherwise than that its a godsend
Quote from: tsenzen on June 11, 2008, 01:36:15 PMsince my av famicom is a japanese RGB modded famicom, the pins are obviously different, im using a 72-60 pin converter for the powerpak, which turns the cartridge the opposite direction... but works instantly and perfectly i did some comparisions between some carts, and noticed that only roughly 1% of quality is changed with feedback noise.. i mean this is very minuscule (your basically sitting 5 inches from the rgb monitor trying to desect the signal) however this doesnt affect the actual rgb.. I realized its the powerpaks interference.Im using a 20"pvm, and an rgb titler/stereo modded AV Famicom.
QuoteWhat generation of power pak are you using. i am using the newest one.