Leningrad+

[UncleDim]

I'll be very grateful if someone could translate it into english(or into polish)

I think the picture would be better
You may try any of the following:

1. Cut D42.9-VT2.base wire and add R3 (in red on scheme2.jpg)
2. Remove R2, VT2, and add wire between D42.8 and VT3.base (in green)
3. Remove VT1

And (regardless of the choise) try to reduce SCART's 16pin pullup resistance from 220 to 75..150 Ohm.

Good luck!