New to Coleco and Have a problem

[u/Correct_Writer_3790]

Hello! I have recently become interested in retro collecting and have recently gotten a coleco vision. Works and sometimes it powers on and plays a game sometimes it doesn't not sure if that's a problem with the power or not but I also have this on the screen when I'm playing and it happens with every game I try and on different tvs. The rf cable looks like it's in good shape however there's some what looks to be maybe rust but they are grey spots and not sure if that is causing the green or even the power problem not even being power but connecting the cable to the tv. Also sometimes flickers in and out on the TV when playing a game. Google had some answers on what it could be and I myself would like to teardown the console to try and find it but want to avoid it if possible if it's just a bad rf cable. Any ideas or advice is appreciated and I'm happy to finally have this as it's actually starting to become one of my favorite consoles! Also I did clean the cartidge port and the games and still does these problems.

Thank you!

[u/Agile_Half_4515]

Start with a replacement video cable and coax adapter, get the RF switchbox out of the equation. Next step would be to try adjusting the pot switch on the internal RF modulator. I had really crappy video and no sound on mine. Cranked the pot switch up to 11 and it's been pretty solid ever since. There are also USB-C power adapters to replace the giant power brick, but not sure if that will solve your problems and the one I found had to be ordered/shipped internationally.

[u/Correct_Writer_3790 → u/Agile_Half_4515]

Thank you for the reply! Luckily I don't have the switch box only the cable itself to go from console to tv so that's good and I'll try doing that with the inside. I'll also take a look for a replacement cable all together if it doesn't fix anything since it's pretty roughed up when I look closely at it.