I have had my SVR-HDT500 since December 2011, and as soon as I got it I loaded the 'latest' firmware (Firmware update , 29/07/2011).
All worked fine until a couple of weeks ago, then started getting issues where it wont power up (as described above).
What changed a couple of weeks ago? Could it be Freeview changes for the Olympics? There was a message to re-tune and I have seen the issue since that.... I have retried a full retune too.
Anyone else with similar experience/timing ?