I just did (another) something really, really stupid....
I was running my 1600sw connected to a DVI port on a PC, via a PIXSolution adapter... Everything worked great...
Yesterday I was fiddling about inside the PC while it was on (stupid, I know...) and accidentally shorted something on the graphics card, killing the DVI out. Swapped in another graphics card and everything on the 1600sw was red... I really mean everything - what was supposed to be black was red and everything that wasn't supposed to be red was just a lighter shade of red. After a while the 1600sw started making a buzzing sound and the image appeared ghosted.
I have a multilink adapter aswell, so I tried that in analog mode - that seemed to work. This morning I connected the Multilink, without input connected, mashed a few buttons on it and it switched into 'diagnostic mode'. It showed all tests as 'passed' except "Backlight" and something along the lines of "Main Logic" - does the latter refer to the MLA itself or the 1600sw?
I plugged a (different) DVI cable into the MLA, powered up and got a reasonable output , until the resolution went above that of the PC's POST screen when all I got was graphical corruption... And still the 1600sw is buzzing.
So, I went from a working graphics card, 1600sw, Pix-link and MLA to a broken graphics card, maybe broken 1600sw, maybe broken MLA and broken Pix-Link. It's the last of those I'm most bothered about - the 1600sw is relatively more replaceable and the Pix-Link box I much prefer to SGI's bulky MLA. It seems to work properly aswell, all the scaling functions etc. - it's just this bloody (excuse the pun) redness. I've opened it up and nothing seems burnt, even poked around a bit with a multimeter, but it's seriously needle in haystack territory, and I know nothing about electronics
.
Also, this wan't all as clumsy and neanderthal as it sounds - honest