Menu Screen is not displaying

[BornInMusic]

Hi everyone !

I have such a trouble with my Panasonic NV-HD600.

After several black-outs in my flat I've noticed that clock on video-player was reset to 00:00.

I decided to adjust them but when I tried to access Menu screen using remote control I faced that video-player went to Menu screen but no screen was displayed (blank black screen on TV).

Any help would be highly appreciated !

Thanks in advance.