Thank you for your replies
I tried the console on 1950's,60's,70's,80's,90's and 2000's CRT TV and it does the same thing. I don't have any of these HD modern flat Plasma 3D thing TV since I prefer CRT one And I only have old videogame console and a Wii so I don't need them
I unscrewed every screws but I can't open the console... I don't know why it won't open The only way seems to have to use brute force but it rarely works without breaking the system
Fortunately I managed to make a small opening in the console and I looked inside with a flashlight. Everything looks fine but it smells really bad inside...
The potentiometer for the 1st paddle does feel weird but when the first paddle appeared in black I could control it like the second one.