After successfully modding my Megadrive II with a 50/60Hz switch, I've been enjoying Sonic and Knuckles, full screen at 60Hz on my HDTV with a RGB scart (looks so gooood). I decided to turn my attention to my snes. After finding that it was a 1chip snes, I moved forward with all the bits I needed. The lockout switch works just fine (as you can see below) When I flip the switch to 60Hz, that is when my little problem begins. I have tried both composite and RGB scart with the same results. I have a few imported games and have tried them all. Only one will refuse to play if I leave it in 50Hz mode (and that's the one I really want to play). I've redone the switch a few times and it's still the same. I've tried looking around and can't seem to find where I've gone wrong. I unsoldered everything and rewired both switches. In the process I broke off pin 111 on the SNSP CPU 1chip. I was able to solder a wire directly to the chip and it is now back in it original state (not sure how I did that). pal/50Hz: Not full screen and imports do not work. ntsc/50Hz: Not full screen, imports do work. pal/60Hz: Full screen, imports don't work, bad picture. ntsc/60Hz Full screen, imports work, bad picture. This is where I am at the moment.
What mod did you use, Super CIC or manual switches? From you description it sounds like you used 2 x SPDT switches. How did you test PAL50, PAL60, NTSC60 and NTSC50 with no mention of S-RGB pin 9? If you haven't touched S-RGB pin 9 then the only modes available would be PAL50 or PAL60. EDIT: I agree with Segata Sanshiro. If your TV was actually recieving and/or accepting RGB over scart then I doubt you would be having any issues.
Thank you for the warm welcome. Would you just Adam and eve it. I've been using this RGB lead for sometime on my snes and I've just remembered; I'd gotten it for the N64. A little look up from the seller states that it would not work on Snes and Gamecube. My, My, don't I feel like a Muppet. It looks like a school boy error on my part and I am full of shame. Luckily for me today while out on a merry walk, I came across a fresh £10 note. I think I will use my newly acquired funds to get a Snes specified RGB scart. Just a bad photo on my part. @ kel This is what I've done:
It may be a bad photo as you suggested but it also looks like your TV is defaulting to composite via scart and that it is expecting NTSC60 and won't accept PAL60, hence the black and white picture when you switch to 60Hz mode. If your N64 cable was custom made then there may be a problem with how pin 16 in the scart end was wired which is what tells the TV to automatically switch to RGB mode. Hopefully the correct scart cable will fix this. If it doesn't then the problem could be that your TV either doesn't support RGB or needs to be switched to RGB manually in the settings menu. Not very common with modern TVs but there are so many different models and brands from over the years that you never know, although if your TV is one of the well known high end brands then you are pretty much guaranteed that it will accept RGB and that the cable is indeed at fault.
As I said, I checked the sellers description of the cable and it states clearly it was made for the N64 only. Sometimes it's the obvious things that you miss. I'm just waiting for a RGB cable for the snes to be delivered. Here is the Megadrive II in 60Hz using a RGB cable. Here is a better picture of the snes running in 50hz NTSC.
Can't be sure from a photo but I think the SNES photo still looks like composite compared to the nice sharp photo of the Megadrive. Anyway, either way it seems that you have tracked the problem down to being your custom N64 RGB cable and not the TV that I previously suggested. I hope when your new cable arrives that it fixes the problem for you.
maybe your (pal)tv is not compatible with ntsc composite. do you use the scart 1 on the tv ? usually, if there are 2 scart on the tv the second is composite only.
My snes RGB scart got delivered today. Here are the Results: Seeing as this would not start unless it was in 60Hz, I think I can call my mod a success. I would like to thank those in this thread who guided me in the right direction to finding where I had gone wrong. I now have fifteen 21.47727 crystals. Who's interested?
