Ok, now I think your problem it that your TV does not support 576i over HDMI and is giving you a blank screen.
What I think you need to do is via Scart go to the display options and select HDMI at custom resolutions abd only select 1080p and confirm. Switch back to HDMI and see if there is a picture before the 30 seconds are up.
If that doesn't work swear at it for an hour and gently rock it before giving up.















