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After recapping the screen (which didn’t show an image before) I see it flash the diagonal lines screen and sometimes even a gray-with-cursor screen. After that it just shows a black screen with the backlight on. On pressing the reset button it goes straight to the black screen, only when I...

Hi all, I was recapping an SE's Rev A analog board and found a diode soldered between CR4 and a resistor I can't see the designation of, and a capacitor between that diode and R26. Is that a modification to basically mod it into a Rev B? Can anyone shed some light on  to what this does exactly...

Hi all, I have three SE/30s, one works flawlessly (Mac A), one boots into the OS but has sound has issues (Mac B, I have another topic about this one), but my issue is with the latest one (Mac C): When I got it, I did a superficial check and turned it on and it booted (without chime) into the...

I have a few compact Macs that are missing various screws and I'd like to make them complete again. Does anyone have details on size, thread count, etc on the types of mounting screws used in (at least) the SE, SE/30 and Classic? So, these are the two different ones outside (silver and black...

Am I correct in assuming that pin 1 (and pin 8 ) is not connected? In trying to locate an issue with my sound I decided to cleanup this part of the board and the pads for pin 1 and 8 came off. Looking at the LB schematics I don't see them mentioned, and looking at the datasheet for TL071B I see...

Hi all, I received a dead SE/30 that I’m trying to bring back to live. When I first switched it on it started without a chime and on screen was just a vertical line. To fix the audio I did a manual cleaning and re-cap of the logic board. For the vertical line I read that it’s probably C15...