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  1. Joopmac

    Early Macintosh home brew 4MB memory upgrade board development

    Anybody ordered the PCB's yet?? =) I am still collecting the IC's
  2. Joopmac

    Recently-recapped SE/30 went "bang" - a tantalum-capacitor cautionary atle

    Interesting, i had this capacitor catch fire, the exact same one
  3. Joopmac

    Recap LC475 mainboard

    Not to hijack the topic, but I am about to order these for a total of 5x 475 board recap; might be interesting https://nl.mouser.com/ProductDetail/74-T55V476M020C0045 https://nl.mouser.com/ProductDetail/80-T598D107M010E025 I am switching over from yellow tantalums to black polymer tantalum...
  4. Joopmac

    Toon's good finds ... and the lost ones

    Ah the pc drive PDS card, I think I have one lying around but no 5.25” drive
  5. Joopmac

    Twentieth Anniversary Macintosh Logic Board Recap Guide

    WOW this is awesome timing =) Thanks so much!!!! I was on the verge of making a similar list, maybe I make it for the power/bose board when i get to it!
  6. Joopmac

    SE/30 DiiMO accelerator cloning

    that RAM test is indeed painfully slow yes it always make me wonder, hey is it defective now?? after some seconds i think - o yeah i have too much RAM
  7. Joopmac

    Early Macintosh home brew 4MB memory upgrade board development

    Am i right that there is a patched ROMINATOR ROM for the RAM expansion + ROM boot option?
  8. Joopmac

    Does anybody know if the louvres are removable?

    Warning not for Plus lovers ! Watch away… all my donor macs had very tight louvres 😆 But I managed to harvest one after two tries First I wanted to drop a Plus but I don’t want to ruin my floor 🤣
  9. Joopmac

    Does anybody know if the louvres are removable?

    Thanks:) Are these glued?
  10. Joopmac

    Does anybody know if the louvres are removable?

    Are these removable?
  11. Joopmac

    Twentieth Anniversary Mac - Gold plated connector/header Question

    Hello all, Snooping around on Mouser, i cannot find this one.... does anybody have a part nr. for the Molex 12-pin connector, and then the gold plated version? Mac27 has a EXCELLENT how-to disassemble, but unfortuately no part number is mentioned for this part I do already have polymer...
  12. Joopmac

    Macintosh 128k 630-0101 board with “jailbars”

    Thanks for your help, you nailed it in the first answer already We just missed it every time
  13. Joopmac

    Macintosh 128k 630-0101 board with “jailbars”

    FIXED! It was a trace under a LS166!
  14. Joopmac

    Macintosh 128k 630-0101 board with “jailbars”

    257's replaced and the 253's also, traces checked, all beep out OK Maybe it's the CPU after all?
  15. Joopmac

    Macintosh 128k 630-0101 board with “jailbars”

    Replaced the 244’s again, a Pain because I rather use no sockets I don’t like the look😂 Still the same and all the connections and traces are checked. Is it possible that the CPU is defective?
  16. Joopmac

    Synchr030/S 256MB SDRAM Accelerator for the SE/30

    Will await the delivery and start messing around with it =) Thanks
  17. Joopmac

    Synchr030/S 256MB SDRAM Accelerator for the SE/30

    No not aware, is there a read me I should go through? Edit: I also have the combo ethernet card from Bolle installed, can I plug the Synchr030 in this one? Synchr030 on the upper slot and the Carrera lying flat
  18. Joopmac

    Macintosh 128k 630-0101 board with “jailbars”

    New update It was the resistor pack Now to find the jail bar issue
  19. Joopmac

    Macintosh 128k 630-0101 board with “jailbars”

    update am suspecting the new LS161AN, installed was a LS161N, not sure why there is a electrical difference
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