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I just got a Macintosh G4 MDD. It wont start at all, just givning a ledlight that dimms off when releasing the power button. No light on the board when connected to mains. I’ve changed the cmos battery and tryed a PMU reset. Still nothing. But I suspect the lack of +/- 12v is the culprit here. I...

Just bought this videocard, 1987 sigma design. It slipped my mind to check the port at the time of purchase. Now I got it today and it has a DE-9 port, for EGA and CGA. Problem is that I dont have that kind of crt screen at hand. Is there a way to convert the signal to use with a regular apple...

The quadra starts just fine it seems, chimes and I can controll the system with keyboard. But I have corrupt videosignal! (Se picture) board is recaped, caps on the correct way and values.

Does this crack in the flyback housing matter other than cosmetic? It seems to be fine under.

I have bought 2 second hand memory modules of 4mb each to put in my Quadra 950 and they arrived today, but it have a sad Mac start sound…mem fail. So I checked the manual and learned that memory needs to be installed in 4 not in 2:s (that I thought) so I found 2 more modules but of a diffrent...

The board is recaped, the PSU is known and working. Tryed remove everything that is connected but still only scraping sound from the speaker and also, it starts as soon as I connect the powercord. I looked over the board and I cant see anthing out of the ordinary. I have a multimeter but no...

I did a total flush and ”new blood mod” on the LCS unit (dual pump) and new thermal paste on the CPUs. Got the over temp light and checkstop after startup. Changed the CPUs for another set I got on hand (from older onepump delphi unit) but same result. So checked online and read it could be the...