Hi Harvey
Tnanks for reply!
Yesterday I took my SVX to the service garage.(see what they say) They'll call me tomorrow.I bought this car a week ago , and it's been imported from Luxembourg,so it is difficult to say when this problem occured. I checked ATF ,it looks like it been changed yesterday. The dealer who sold it to me won't go for trouble of changing ATF. So I assume that the previous owner sold it as it happened. I'll call service garage tomorrow morning and ask them to try to adjust brake band , and do test-drive (hopefully it will work)if it's not brake band - it will be difficult to get spare parts for this transmission. They suggesting to swap for manual, but they never did it before on SVX, so they not shore "how to".
What is your word of wisdom ?

Thank you mate !

Alec