PSOne Problem

[cdiamg]

My PSOne (the small white SCPH-102) has a problem. with some backup copies, the picture flickers extremely. The picture flickers then in such a way, as if one switches a normal Playstation on (the picture flickers there also for ne second) only goes that here continuous. What does that lie? it plays other plays without problems.

ON the PC (emulator) run the games with no problem

The Games are PAL. The Playstation, too. And have a ModChip


And sorry for my bad english. I´m german.