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  1. Elemenoh

    128K Analog Board & Logic Board Capacitor List

    @Kai Robinson Will do. I'm going to measure all the lead spacings when I do the recap itself. Once I have all of those measurements, I'll add the updated sheet to Resources.
  2. Elemenoh

    128K Analog Board & Logic Board Capacitor List

    Good catch. I've added in C14. It's a 22uF 50V axial like C6. I did not include C33 or C37 (Ceramic disc caps) since I've never seen those fail and AFAIK are not common to replace prophylactically. I can add them in here as optional if others think it's a good idea. Edit: @JDW are you...
  3. Elemenoh

    Macintosh HD20 issues

    Check out these posts.. MacGUI Hard Disk 20 (HD20) Repair Part 1 MacGUI Hard Disk 20 (HD20) Repair Part 2
  4. Elemenoh

    Macintosh 128k/512k/Plus 240V Analog Board Recap List

    Oh funny I made a similar post at almost the same time. I was considering sharing my Digikey cart, but as you mention availability changes so often. I opted for adding the physical specs instead so someone in the future could find whatever usable options are at the time. I'll update mine to...
  5. Elemenoh

    128K Analog Board & Logic Board Capacitor List

    I'm in the process of doing a full recap on a 128K Mac and was having a hard time finding a complete list. So I made my own. This is for the 120V version part number 630-0102. The physical sizes might be off by a part of a mm, but replacements will mostly be smaller anyway. Notes If you need...
  6. Elemenoh

    Reattaching an Apple badge onto a compact Mac

    I use a tiny dab of rubber cement.
  7. Elemenoh

    PowerBook 100 screen recap

    I recently recapped a Duo 230 LCD which also uses 3.3uF 35V caps. I also went with tiny ceramic caps (3.20mm x 1.60mm). DigiKey link.
  8. Elemenoh

    SE/30 gray screen with cursor post recap when SCSI drive attached

    Swapped CPU and the Sony sound ICs (UB10,UB11) but no change. (╯‵Д′)╯彡 ┻━┻
  9. Elemenoh

    What is the typical failure mode of resistor networks? (Dale 472G)

    I've been working on a bugged SE/30 board and ran into the same issue checking the Bourns filter packs. Out of circuit they measured something like 45k across, but in circuit was a variety. I compared to a referenced known-good board. You can see the specific values here if you're curious. Short...
  10. Elemenoh

    Hidden treasure inside an old AirPort Extreme Base Station (A1034)

    The original airport base station has a big Lucent WaveLAN PCMCIA card inside of it :)
  11. Elemenoh

    SE/30 gray screen with cursor post recap when SCSI drive attached

    @Branchus yeah that was one of the first things I tried. I've also swapped all of the socketed ICs with known-working chips and had the same result. It's a long shot but I'm wondering if the CPU might be bad.. freezing when the ROM gets to SCSI. I might try that next.
  12. Elemenoh

    SE/30 gray screen with cursor post recap when SCSI drive attached

    So today I quadruple checked continuity for all the address and data lines to ASC were fine. Y3 tested OK. Swapped ASC and the symptom persisted. I checked all of the ASC address and data lines on the oscope. The waveform shapes themselves seems okay compared to a working board. But the bugged...
  13. Elemenoh

    Compact Mac's feet project

    I love the idea of making accurate replacements. That being said, compact Mac feet might be the last ones I'd want. I'd be most interested in replacement rubber feet and stoppers for PowerBooks where they often melt and are very noticeable when missing / melted. Is it possible to cast a...
  14. Elemenoh

    SE/30 gray screen with cursor post recap when SCSI drive attached

    That's correct. And if no SCSI device is connected, it boots okay from floppy.
  15. Elemenoh

    SE/30 gray screen with cursor post recap when SCSI drive attached

    All the data and address lines from UE10 (ASC) and UI12 (SCSI) to the CPU tested okay. Will try swapping UE10 next. Glad to know the traces are likely fine though.
  16. Elemenoh

    SE/30 gray screen with cursor post recap when SCSI drive attached

    Huh that's helpful info. The only IC I didn't check continuity to was the CPU since it's a pain and I figured unlikely that path was broken. I'll check that next. Thanks!
  17. Elemenoh

    SE/30 gray screen with cursor post recap when SCSI drive attached

    Update: Continuity from J4 > J5 > UI12 is OK Continuity from UI12 to everything else is OK to all other points (ROM, RAM, VRAM, GLUE etc) I replaced UA8 and UB8 since I had some spares and they share address lines. No change. Though all connections to the ASC (UE10) are okay, I get a garbled...
  18. Elemenoh

    T15 Torx Screwdriver for Compact Macs

    I have a similar long manual T15 which is great to have, but also use a 6" impact T15 on a 6" extension on an impact driver set to low torque. It's a nice time saver if you work on a lot of compact Macs or other models with T15s.
  19. Elemenoh

    Snooper serial loopback plug

    Awesome I was just asking about this in the discord. Thanks for figuring this out!
  20. Elemenoh

    Cleaning solutions for ultrasonic cleaning of electronics?

    I'm also using the Elmasonic at the moment. It looks like the size I got in June 2021 is not out of stock. I think I got 2L or so for ~$83. I dilute to 5-7% with reverse osmosis water since I have 5 stage filter at home already. It really would be great to figure out what the basic composition...