Search results

  1. M

    And the good news is this PSU now works! (With no explosions when plugged in :) )

    And the good news is this PSU now works! (With no explosions when plugged in :) )
  2. M

    Logic Board - Macintosh Classic RAM Expansion

    Was it easy to export the required manufacturing data from sprint? I'm very tempted to get my next batch of LC boards assembled...
  3. M

    Logic Board - Macintosh Classic RAM Expansion

    Ooooh, very nice :)
  4. M

    Recommended Oscilloscope for retro computers?

    I brought one of these recently: https://uk.farnell.com/tenma/72-8710a/oscilloscope-2-ch-100mhz-1gsps/dp/2499520 It seems to work well enough for checking clocks and bus activity on retro computers It did however cost £130 less when I brought it!
  5. M

    RGBtoHDMI for compact macs - need some help

    Ian's fork is the one I used (and is the same one he uses in the video) I will say I didn't have any luck with the preset Adrian has made and ended up having to recreate it, I was testing this with a Plus board but my understanding is the video signal on all the compacts are pretty much the...
  6. M

    Macintosh II & IIx replacement battery holders

    @Elemenoh have you had any issues with the IIx draining the CR2032's fast? My IIx drains a 2032 in about a month!
  7. M

    Just giving this LC PSU a nice hot bath :) [ATTACH]

    Just giving this LC PSU a nice hot bath :)
  8. M

    Macintosh connector part numbers

    yep it's a standard 96pin din41612 e.g: https://cpc.farnell.com/multicomp/41612-96abc-fs/socket-din41612-c-96way/dp/CN20552?st=din41612
  9. M

    Macintosh connector part numbers

    Personally for 30pin vertical SIMM sockets I always use Winslow WS3130SMRRC form https://uk.rs-online.com/web/p/memory-sockets/3789419/ I can verify these fit in SE/30, IIx and LC boards just fine
  10. M

    Macintosh II with ROM-SIMM

    I think so, part number should be 343S0164 :)
  11. M

    Macintosh II with ROM-SIMM

    Yeah I have had that before.... I'm still annoyed that the LC475 memory controllers they listed as in stock weren't! Though saying that most of what I have tried to order that they have listed as in stock has actually been in stock at the price they listed. They are a useful source of obscure...
  12. M

    Macintosh II with ROM-SIMM

    I'm almost more impressed you actually got a quote back from UTSource! I don't think a single one of my inquiry's has actually resulted in me getting a quote.....
  13. M

    Reverse Engineering the Macintosh LC Logicboard

    I suspect that was the case. Interestingly the prototype boards (at least the ones I have seen) use a EGRET with a different part number to the production boards (343S0100 VS 343S0851) Maybe apple used a version of the microcontroller with a higher drop out voltage on the prototypes? I can't...
  14. M

    Reverse Engineering the Macintosh LC Logicboard

    Got the board assembled enough for testing last night, Since V1.0 worked I was assuming this was going to be more of a formality than anything however (and much to my surprise....) I flipped the switch and got..... nothing. No chime, no video. About 4 hours of troubleshooting later (And a few...
  15. M

    Reverse Engineering the Macintosh LC Logicboard

    It is a very nice finish, I'll probably go matte black / ENIG on the 1.2's :) I'll make a thread in the trades section once they have been tested :) Funnily I didn't even know a revision without them existed untill I saw your last livestream! Every LC I have ever seen or worked on has had the...
  16. M

    Resource Categories

    Keeping them under the relevant subforum makes sense to me, personally I think guides etc will be easier to find that way.
  17. M

    Reverse Engineering the Macintosh LC Logicboard

    Annnd it begins again! V1.1 is being assembled: (The camera on my phone wasn't wanting to focus...) Hopefully this one should work with just the one jumper between /CE and /OE Still can't decide if the Matte black or purple boards look better.... :) (I did want to get some made with clear...
  18. M

    PowerBook 160 Brightness

    I would replace those two capacitors, I had a couple of 1x0 series powerbooks a few years back which acted a similar way and replacing those caps seemed to improve the symptoms
  19. M

    Reverse Engineering the Macintosh LC III Logicboard

    In theory it would be possible, however would take require a significant amount of modification to the board to fit it in as there isn't enough space to fit a second slot above the first (the SCSI lines comeing from the 85C30 get in the way) I would be more inclined to remove the RAM slots...
  20. M

    Reverse Engineering the Macintosh LC III Logicboard

    That doesn't surprise me, one of the things the clock chip on the LC III (and presumably the 475 is the same) dose is generate a 31.3344mhz clock for the serial, given this is the same speed as the oscillator it's safe to assume this is just being passed straight through the clock chip. I guess...