Decided to recreate this thread because the other one was quite unclear and not very helpful.
I got a 7970 here and I just powered it up. At first I thought there was no activity on the screen, but now I can see that stuff is being displayed it's just next to impossible to read because the backlight is off, or turned all the way down (if the lowest setting makes it appear to be off).
It's so dark that I can see that there is activity but I can't make out any words.
Can anyone give me the button combination to turn up the backlight? Or how to enable it if it is simply disabled for whatever reason.
Is it possible that the backlight may have burnt out? Any way to replace that?
The device is being by a 568B PoE injector, but it operates at 15.4 watts which I heard was enough to get the screen to illuminate at least enough to see.