Neo Geo CD problem ( no image)

[Padoca85]

Hi everyone.

I got this neocd some time ago but just now i got a power supply to test it out. Dont show any image, sound its ok.

Tested the compositive and s-vid in 3 televisions (2 analog crt, 1 lcd)

I think it can be a problem on the signal than no signal whatsoever, because my lcd tv only outputs sound from the machine if the vid signal its conected.

This its the second neocd that i got with the same problem, i got one couple years ago that i ended up selling. So im starting to think its a commom problem with neocds (at least the ones made here).

Any advice?