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  2. Anyone out there with some experience with a SE psu? I suspect the ic in the photo is a 8dip optocoupler. one of my SE has it faulty. Would you guys know the specs for this ic?
  3. Today
  4. Yeah very early on Apple referred to sliders as “dials” but it never really stuck. Where did you see that last paragraph you quoted? I don’t see it in my copy of Inside Macintosh. Anyway it’s wrong - the only “dial” defined in ROM is the standard-issue scroll bar, I promise.
  5. Unfortunately, I only have a multimeter to check these lines at the moment. I'll have to double-check the CPU-GLU address lines tomorrow to confirm that everything is working correctly, but no problems were detected on my first pass today.
  6. I just picked up a non-working 128k as a project. When I turn it on there is no chime or video, but there is a repeating clicking sound coming from the speaker. I'd say about 2 clicks per second. I'm assuming it's an analog board issue, but I don't know where to start looking. None of the capacitors are swollen that I can see with a quick look from above, I haven't pulled the analog board out yet to take a closer look. A reddit user said it could be a HV diode, I haven't taken a look at that yet to see if it is visibly damaged, I'll be doing that tomorrow. If anyone has ideas for trouble
  7. I'm thinking this as well. Looks like only half of the VRAM is available to the main bus, but all of it is being displayed. A stuck VADR line into the muxes can result in portions of the display repeating, but that's not what you have here. I'd look closely at the lower A lines. Are you checking these with a scope or DMM? A continuity test won't tell you about a short to GND, etc.
  8. Look out for a Mac compatible Promise ATA66-100-133 card. But I'd try another SSD brand if you can
  9. Yesterday
  10. As previously mentioned in this thread, there are several versions of Dark Castle available. Newer ones even run under System 9. Earlier expect the memory layout of the original Macintosh which was carried over until the Mac SE, I think, (possibly also the original Classic) but was changed with Mac II and LC-class Macs. Hence updated game versions had to be built. Just search the Garden and Repository.
  11. Yes, it seemed to work fine on the original 4 GB HDD. I don't think it's practical to do native SATA because I want to run OS 9 and the very few PCI SATA cards that run under OS 9 are difficult to attain or too expensive. What could be some reasonably priced PCI IDE controllers compatible with booting OS 9 to look for?
  12. Yes -all of these connections are working correctly. Apart from connections going to and from the PDS socket, I tested every possible connection for both the address and data buses, and they were all good. @techknight mentioned checking control lines, but I'm not sure how to test these/where they are. (I think they have something to do with interrupts and reset, but I am still figuring out how computer architecture works in general) Believe it or not, I actually used your article from Hackaday as a guide to help with this process! I found the diagrams to be very useful, especially in conjuncti
  13. I'm having a hard time locating the MLB resistor packs on this and the other available schematics. Are they 3.3k like the packs on the IO board?
  14. Another small update! Sliders are apparently not called sliders, but dials in Apple's documentation. Inside Macintosh mentions them in the following passages (of which the second seems to contradict the first…) (my highlighting):
  15. It's probably an incompatibility with the SSD (the IDE implementation of the G3 doesn't play nice with the later ATA standard used by the SSD, adapter); I've found this many times trying to make my 68K/PPC Macs run off them. I assume switching back to a mechanical HD all problems are gone? Yes, you could try a later PCI IDE card - or consider native SATA.
  16. Excellent! I’m happy there are more options on the market. This is my current version of my adapter: It will stay on the market as long as there is a market. I ended up beveling the edges to make it fit various PowerBooks a little better.
  17. Small update regarding tool windows! After making a search for “WDEF” on Apple’s Developer Connection CD’s, I discovered a folder named “Floating Windows”, containing code for making windows float, as well as the third party software “Infinity Windoid WDEF” for implementing tool/palette windows. The documentation for the latter also mentions that OS support for tool windows was introduced with System 7.5 in conjunction with Apple Guide and its custom windows. I assume it wasn’t used much though, since I don't think I've seen any other software using the same style for its tool windows. Perhaps
  18. OK..... I think I have found the issue and I'm a little embarrassed as to what it was, turns out it was a cold solder joint on one of the termination resistors..... I designed the board using 0603 resistors forgetting the reel or 110ohm resistors I had where 0805, turns out bodgeing 0805's onto 0603 pads isn't the best idea! My PB145B now boots from my Pi Zero powered RaSCSI just fine And the board (ignore that bodge wire - it is a leftover from debugging and is not needed) I need to add a anti backfeed diode to the +5v rail on the board to stop the P
  19. I have one, it's nice. My first impressions are here:
  20. MacSD has a thread here: And a web site: http://macsd.com/index.php A couple of brief first impressions are posted/linked to in the thread as well. It's an interesting new option, and it'll be interesting to hear from other people what they think of it.
  21. Ah, I didn't see your reply until after my post above. That sounds like a good solution for now. I'll see if I can figure out how to code it. Thanks for the information about the buttons. I'll put CDEFs on my growing list of things to read up on!
  22. nope, sorry my bad this one https://www.ebay.com/itm/254686019168
  23. Did you check the address bus lines conductivity between the cpu and the glu chip ? I had a similar issue and it was linked to this : https://ronangaillard.github.io/posts/my-mac-se30-is-back-alive/
  24. After a couple of hours of searching and skimming through various resources online, I’ve come to realize that writing a custom WDEF probably would be just as difficult, if not more, than going through and rewriting the code. Programming on classic Mac OS sure requires a ton of patience...! Just modifying the standard window routine to remove the title bar would have been enough, but I haven't been able to find any C code for it.
  25. If you want to change the drop shadow of the window without eliminating the whole window, I would use the plain-rectangle window type with no shadow. Then, I would CopyBits(the window’s rect plus a little extra for the shadow) to an offscreen buffer, and draw the shadow myself outside the window (using the WMgrPort). Then when I close the window, I would use CopyBits() from the offscreen port to restore whatever was there under the shadow. There is no built-in support for arbitrary shaped buttons. You would need to write your own CDEF (control definition function) for a rectangu
  26. If they are form ITEAD they are genuine, if they are form anyone else they are knockoffs
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