<p>Dear all. Thank you for you responses here. I will try to explain problem one's again.<br>
1. Camera working perfect in all speeds (auto, manual, program modes) up to 1/1000<br>
2. Camera making good pictures at all speeds up to 1/1000<br>
3. There is no error massages appear at any stage.<br>
4. As soon I camera using speed of 1/1000 or higher, in any mode, camera didn't make pictures (clear negative)<br>
5. All systems are working fine: film transport, mirror up and down, and shutter curtains moved.<br>
The only problem they move closed :(<br>
I did exactly as Marc described: Opened back, pressed left switch and checked all speeds at full open aperture and as I write before all working fine up to 1/1000 sec.<br>
If any of you know how to deal with this problem I will be happy to know.<br>
All best,<br>
Vadim</p>