LE37B530 - HDMI ports

[SkyHigh]

Hi,

My ps3 has been working fine on my tv in HDMI, but recently i only get a black screen and nothing more.
the ps3 works fine in hdmi on a diffrent tv, my tv itself does detect a signal when i turn on my ps3 but the screen just stays black.

I have this problem with all 3 HDMI ports, already upgraded the tv software to the latest version but that did not help unfortunatly.
Does anyone have knowledge of this problem and if i can fix this?

Best regards
Sky