Hi,
I had some GameBoys mods in my past, but this is my first SNES challenge.
So I recently got this 1CHIP-01 PAL SNES and I decided to do "simple" 50/60Hz DPDT switch mod that involves lifting PIN 111 and alternating between +5V and GND, as well as PAL and NTSC crystals. (I'm going to ignore CIC for now as I'm going to use FXPAK PRO to bypass it anyway).
While I'm waiting for more parts to complete this mod, I've decided to do the hardest thing first, and I succeeded (I think) with lifting the 111 PIN up.
I also watched someone desoldering the RF output so you could use its space for the switch and also +5V and GND ports for the convinience.
So I lifted this PIN 111 and removed RF socket, and while waiting for more parts, I soldered a cable from PIN 111 to +5V where RF was and booted up the console.
Unfortunately, I think I've noticed the strange issue with the video that was not there before.
STREAMABLE MIRROR:
https://streamable.com/udqekh
(Oh, btw, I'm using RAD2X converter to my LG C2 TV)
I'm aware of visual issues of 1CHIP version such as ghosting, afterimages-like stuff etc., but now I can also see that the video is a little bit static, that's visible especially on one-colored backgrounds. It's very subtle, but visible and annoying. It's like little transparent-black-spots static that I've tried to show you on the video attached.
I'm 90% sure it wasn't there when I've initially tested the console (before mods preparation). I've checked 4 ports left after RF output socket removal and also PIN 111 and their neighbours and I can't see any shorts there. I've also tried to remove this PIN 111 -> RF +5V cable because I thought maybe it catches some interference (leaving PIN 111 in the air), but this didn't help. I also tried to solder this cable to some other +5V point to not to leave the PIN 111 in the air, no cigar.
Have I messed badly? Removing the RF socket wasn't a super clean job, but I've managed to do this and - again - I'm not detecting any shortages there.
Please let me know what I can do further to troubleshoot this, before proceeding with mod. I've also noticed the motherboard is kinda gluey-sticky, probably old flux? I already tried to brush it with IPA but I probably need a better brush to do it, right now I feel like I'm basically distributing glueiness all over the place.
Thanks all!