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RetroViator
replied to the thread
Mac IIsi Repairathon
.
What's next... I tested each of the five functional boards with my snazzy TechStep built by @max1zzz. It confirmed that Delta and Echo...
Tuesday at 3:55 AM
RetroViator
replied to the thread
Mac IIsi Repairathon
.
The Dreaded Power Supplies Knowing how bad the IIsi power supplies are (due to leaky SMD caps on the soft power daughter board and leaky...
Sunday at 10:25 PM
RetroViator
replied to the thread
From AppleLink to the iMac.
.
Back in the day, I ran my college's computer store, and I dialed into AppleLink regularly to place orders, download product sheets...
Jan 9, 2026
RetroViator
replied to the thread
Mac IIsi Repairathon
.
I've worked with ex-military guys over the years, and while it seems a bit gimmicky at first, it really does clarify and simplify...
Jan 9, 2026
RetroViator
replied to the thread
Macintosh II SI capacitor question
.
I've seen it eat one of those resistors, but it's impressive to see all three obliterated. 😬
Jan 9, 2026
RetroViator
replied to the thread
Macintosh II SI capacitor question
.
What a mess. 😩 I’d be interested in a poll of what Mac or Mac peripheral has the worst corrosion or leakage problems. I’d have to think...
Jan 8, 2026
RetroViator
replied to the thread
Mac IIsi Repairathon
.
Hard Drive Archeology Tonight, I plugged in seven hard drives from the Mac IIsi to see if anything was salvageable. There were three...
Jan 8, 2026
RetroViator
replied to the thread
Mac IIsi Repairathon
.
Tonight was floppy night I worked on all seven floppy drives, following @Branchus excellent restoration tutorial. It was like spending...
Jan 7, 2026
RetroViator
replied to the thread
Mac IIsi Repairathon
.
Logic Board Summary: I started with one working IIsi, and I now have five functional IIsi logic boards! Here is a run down: Alpha -...
Jan 4, 2026
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