Yeah, this is the hard part... someone can tell me if this guide is right for this mod? https://www.thefutur...tari_2600_6_pal
I've just repaired my "new" sunnyvale light 6er, don't want to burn all my "hard" work.
I'd like to know that too...
If your PCB looks like that shown, then those instructions should be good. My 4-switch ‘Vader’ model is an odd-ball made in New Zealand back in the day, but the basic board layout was the same.
If your PCB looks slightly different it may still use the same component designation, so look for the printed labels — often under components, for extra fun. Check by tracing the path back to another component — the audio will always come from the same source, and so with the video. A ground point and 5 V source can be taken from anywhere convenient, really.
Just take care, and make sure you can reverse any change if necessary. I only lifted one end of components to be removed, then used a bit of heat-shrink to isolate them. This made the changes reversible. Getting the modulator out took a lot of effort, so you may want to consider leaving it in place and just cutting the five pins close to the board then taking them out. (It is a large piece of metal, so desoldering it was difficult. I would try to leave it in place if doing this again.)
The circuit provided by “simon.plata” is pretty simple, but I built it on a breadboard first and connected it up to test prior to building on the small piece of PCB. My first attempt at the small PCB failed due to not laying the components out well. You can use the schematic for the PCB that Simon put here to guide you in building this on your own PCB.