DJ68K
Member
Cruising Marketplace is sometimes a bad (financial) idea. Incidentally, it's how I discovered how many Mac Classics I can fit side-by-side in a Fiesta ST hatchback. In the past three weeks, I've disassembled everything, cleaned plastics, glass, and metal thoroughly, neutralized capacitor corrosion via vinegar baths, soldered several bodge wires, and fully recapped five of the six units. Besides two bad HDDs, a bad floppy (still investigating), and a rather loud analog board on one of the Classics (also still investigating the cause), all of them are working great again.
I had to remove a few chips from the Classic boards to figure out how traces underneath ran on the boards; I'll probably make a separate thread or two in Compact Macs with high-res photos of the layout under the chips with some search terms; when I was trying to figure out how things worked, I searched here and couldn't find what I was looking for, so hopefully my experience and documentation will help others. Fortunately there was plenty of discussion about Mac Classics that display 512K of RAM due to broken traces to/from UH6: two of the three Classic motherboards suffered from the issue, and the third had no sound (broken trace underneath UA5). Oddly, the Maxell-bombed SE was the easiest and most straightforward to fix, just requiring cleaning and recap. Go figure.
The LCIII's case is pretty brittle and partially destroyed in front, and it's missing both the floppy and the floppy bracket. The PowerBook 5300c is missing the battery but otherwise works fine, including the HDD! I probably still need to disassemble the LCD and look for old SMD electrolytics and replace with tants like I did with a PB1400 a few years ago.
