Thank you for your help and I will write in English.

Replacement of lasers did a specialist who deals with the repair of electronics - before, no problem, he exchanged lasers in other devices (like sega cd, DC, etc). Adjusting the potentiometer (the one who laced the next two white connectors) does not help, jumpers laser safety apparently is not. Laser marked with A2 is similar to the laser with the designation A3 but not identical. I read that the laser Sharp H8147AF was produced in several versions (A2, A3, A9, AZ). I did a test with A2 and AZ, none of them work with my neo geo cd.