If you want to play NTCS games on your PAL console, you will need an RGB cable
Futhermore it will increase the picture quality
Some PAL consoles doesn't support RGB without modification, example:
Nintendo 64: you will need an RGB mod
Playstation 1: you wil need to install a dual frequency oscillator, or an xstation which already have one integrated
There are a lot of type cables for the old consoles, and only some of them support RGB example:
There are different sync mechanisms:
CSYNC: Perfect signal - can be dangerous - compatibilty issues.
Sync on Luma: Almost perfect - less compatibilty issues.
Not all consoles support all types of cables, and all types of sync for example Super Nintendo PAL doesnt support csync and you can damage your console.
In adition some scalers, switchers, or TVs doesnt support Csync or Luma, please check your setup before purchase a cable.
Before purchase cable think about the posible sync and cable type if you planing to get a SWITCHER and or SCALER there are compatibility considerations,
some switchers can or not support some sync and are designed for one or more types of input, the same think with SCALERS.
Retro gaming UK
PS1 csync cable: PS1 CSYNC
PS1 luma sync cable: PS1 LUMA
PS1 Genesis adapter PS1 Genesis adapter YPBR (to use ypbr genesis cable on the PS1)
Genesis YPBR cable
Suppose that you want to purchase high quality RGB cables for your console.
If you have many consoles, its a good idea to put them together to a SWITCH and connect the SWITCH to your TV. More info about switches
HIDRA - SCART: (not recommended)
GSCART - SCART: (recommended)
OTAKU GAMES - SCART AUTO (not recommended)
OTAKU GAMES SWITCHERS (not recommended)
Now you have your all your consoles with high quality RGB cable and your SWITCHER to your TV
But your TV its very moderm and :
A: doesnt allow your old input - You can purchase a HDMI converter, it just convert to HDMI but doesnt increase the quality and usully they just dont work and may add LAG/LATENCY when output.
B: your TV doesnt allow old input (scart, composite etc) and its 4k so even with a converter the image looks so blurry because of the console resolution its too small even not compatible since minimum may be 400x600.
Then you may want to add a SCALER to your setup
Because of compatibility, actually I dont know if its possible to do this setup:
Obiously I tried to get support but no answer hehe, so when I test will update this article.
GBS-C AIO: (I recommend this one)
RETROTINK: (not recommended)
If you don't want to mess with all these things (normal), another option is to purchase a cable for your old console which already output HDMI