Over the weekend, I left the Mac SE/30 running for #Marchintosh, but came to it this morning and the built-in monitor has gone completely strange. First, I could only see a picture when turning the front (and interior) brightness settings to max for both; whereas, it used to be normally adjusted. However, the display itself is now stretched ridiculously large in the horizontal and less so in the vertical. I have attached a picture of what it looks like now. Adjusting the pots on the logic board shows little to no change on the display.
I recapped and reflowed the analog board 18 months ago. I recapped the logic board before that. I also put in a Babyface power supply a year ago (my original Sony PSU is recapped and fine also).
I thought maybe the CRT gave up the ghost, so I swapped in another Samsung CRT I had from a scrapped Classic. It is behaving the exact same, so it isn't the CRT. I inspected the analog board and could not find any issue (flyback transformer isn't cracked and the main bar is solid). I typically use a video card from zigzagjoe as my main display, and that is working just fine. It is only the internal display.
Any ideas on what could have gone wrong? A failure somewhere on the analog board I am assuming, but I don't have the expertise to independently figure out the diagnosis of the CRT signaling.
I recapped and reflowed the analog board 18 months ago. I recapped the logic board before that. I also put in a Babyface power supply a year ago (my original Sony PSU is recapped and fine also).
I thought maybe the CRT gave up the ghost, so I swapped in another Samsung CRT I had from a scrapped Classic. It is behaving the exact same, so it isn't the CRT. I inspected the analog board and could not find any issue (flyback transformer isn't cracked and the main bar is solid). I typically use a video card from zigzagjoe as my main display, and that is working just fine. It is only the internal display.
Any ideas on what could have gone wrong? A failure somewhere on the analog board I am assuming, but I don't have the expertise to independently figure out the diagnosis of the CRT signaling.
