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  1. AndyDiags

    Reattaching an Apple badge onto a compact Mac

    Thanks for the feedback everyone! I found "glue dots" being sold online, they seem similar to the material used to attach credit cards to paper. I'll compare those to double sided tape and pick which ever works best. PS, I've added instructions to my original post of best way to get the...
  2. AndyDiags

    Reattaching an Apple badge onto a compact Mac

    Does anyone have any recommendations for a type or brand of glue I should use to reattach an Apple badge? The original glue seems like a yellow layer of goo, and it's still very sticky after 30 years. I want to avoid using things like super glue or epoxy to allow the badge to be removed again...
  3. AndyDiags

    Found source of "Jail bar" problem on SE/30

    Looks like that C7 capacitor leaked out prior to replacement causing havoc is the surrounding area.
  4. AndyDiags

    Using the Sun to restore a yellow Macintosh ☀️

    I'm a bit worried how he suggests using a glass for weight, if a strong enough light is used or someone does this with the sun, the glass's light reflection can possibly cause hotspots/streaks. I also want to mention that I have health concerns about using the submersion method indoors. When I...
  5. AndyDiags

    Broken Atari 2600 Voltage Regulator Heat Sink Mount/Leg

    The Atari 2600 voltage regulator has an aluminum heatsink. This heatsink is mounted to the pcb board via a small leg, which can easily break off over the years. I noticed my leg was broken when I went to replace the voltage regulator. Instead of buying a new heatsink, I noticed you can...
  6. AndyDiags

    Using the Sun to restore a yellow Macintosh ☀️

    I've did a lot of indoor testing with UV light and heated hydrogen peroxide. I was hoping I could create a setup in the home which would get very reliable results. At the end of the day, I didn't find anything worthwhile. UV just doesn't have the abundant power of the real sun. I would have...
  7. AndyDiags

    Using the Sun to restore a yellow Macintosh ☀️

    I've been looking at the safest ways to restore the color of the Mac without over bleaching the unit or leaving streak marks. Because the inside of a Mac 128/512/Plus is coated with a conductive covering, I want to avoid submerging the case into hydrogen peroxide as it induces...
  8. AndyDiags

    T15 Torx Screwdriver for Compact Macs

    Hi All, Knowing that anyone working on a Compact Mac must have a T15 Torx screwdriver, I just wanted provide a link to where I found a great quality one at an excellent price. It cost under $10 shipped from China, and the great part is that they will ship anywhere worldwide without high shipping...
  9. AndyDiags

    What is the thickness of RAM SIMMs (30 pins)

    My calipers indicate somewhere between 1.20cm and 1.25cm for the couple sticks I have laying around. I measured the edges where there are not traces or printing.
  10. AndyDiags

    ⚡︎ Mac Plus Analog board outputting only 4v instead of 5v [SOLVED]

    Root cause found! Bad U3 chip!! I pulled up the schematic for the board, and it showed the +12v is directly regulated, and the rest are slaved to the +12v. I checked and the +12v was reading +9.7v, so I figured it was not being regulated correctly. I already checked all the components in...
  11. AndyDiags

    ⚡︎ Mac Plus Analog board outputting only 4v instead of 5v [SOLVED]

    Hi all, I have a Mac Plus analog board 630-0102 (non-international) which I just can't seem to get to work properly Symptoms - No bong - Logic board has steady 4.07v output on the 5v rail via floppy port - Logic board has -9.94v on the -12v rail via floppy port - Adjusting the voltage pot on...
  12. AndyDiags

    Cracked flyback transformer wire

    I just saw a working Mac SE/30 listed for sale and they had a picture of the inside. In that picture I noticed that the same metal wire was snapped! This made me wonder why that Mac is working with a wire broken. I did a bit more investigation to see what the purpose of that wire is and where...
  13. AndyDiags

    Cracked flyback transformer wire

    As you can see in the photo, the flyback wire on this Mac Plus analog board somehow snapped off. I would like to confirm that it's ok to soldier this back on. Will that hold? Could the high voltage/high temperature generated by the component cause it to break again soon after? The transformer...