in addition to that screen it was making a loud beeping noise.Tried flipping the power in the back a couple of times, then proceeded to reset it via the front. Eventually, after 20 boots or so, it finally started up normally. Turned it off and on again and the screen came back. Also of note is that the disc tray blue light isn't lit during the test screen, unless I press the disc tray button then it comes on.. When I got it to boot up normally that one time it was also on.
As far as I know the PS2 isn't modded, I bought it used a couple of years ago. Any ideas as to what's going on?
Short version:
-Ps2 boots up with colour bar test screen
-Blue light isn't lit unless i press disc tray
-Got it to boot up normally after 20 resets, then went back after another reset