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    TashTwenty: Single-Chip DCD (Hard Disk 20) Interface

    This is a great amazing project and wanted to check on the status and availability as I do not see it on your GitHub yet. I am also building many of your Lisa boards for my Lisa rebuild as I have 2 of them to fix. PSU boards (new version) on the way to me. CPU board I have also but not sure I...
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    Macintosh SE/30 logicboard recreation (thread revival)

    For me, traces are not so bad but as soon as vias are gone both ends missing and no copper inside, it’s a done deal for a transfer. Simple trace repairs I would say 15 or less would try fix the board 16 or more do a transfer. Be sure you move the items needed from the back also.
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    BGE's take on the Quadra 900/950 ATX PSU Mod

    I like this very much and thanks for the replies to my messages. I will wait for you to have a final working version that you are satisfied with before I order boards. I have most of the parts and seems you have removed some items. This makes it great. My concern, in my PM to you, was about the...
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    BGE's take on the Quadra 900/950 ATX PSU Mod

    Let me test mine and be sure it works before I make it available for others. The parts are hard to source due to shortages and some I had to pay much higher reprice for. You seeing over $100 there just on parts. Just so you know!!
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    BGE's take on the Quadra 900/950 ATX PSU Mod

    This what I have already done. I am waiting on 1 final part to arrive to test and get back on it. I have loads other items going on so can be a few weeks before I get to it.
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    BGE's take on the Quadra 900/950 ATX PSU Mod

    I have some boards but need to see if I have enough of the parts to make a second one. I made one for myself. But I do have to tell you, the parts not easy to find and are expensive compared normal parts. I am still waiting for 2 items for me to test mine. The parts I waiting for see not for the...
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    Quadra 950 PSU Housing

    Hello. Anyone happen to have just the metal shell for a Quadra 950 PSU? I don’t need the guts as I am building my own internals. Thanks
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    BGE's take on the Quadra 900/950 ATX PSU Mod

    I don't see any further posts on this great project from @BadGoldEagle. Is he still on the forum and what about the project? The GitHub has no updates for 2 years. June 26, 2022 was the last time he was on the forum.....I would like to build this but?????
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    Macintosh SE/30 logicboard recreation (thread revival)

    Today I did an ultrasonic cleaning of the board then an IPA soak, rinse and sun shine time for a few hours. Afterwards, I came inside with the board to test and I was getting a chime and after a few seconds I would get fault code chime. 0000000F/00000033 was the code. I let the board soak up...
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    Macintosh SE/30 logicboard recreation (thread revival)

    I got this solved. I checked all traces back to the sound chips and all were good. Then I checked the pin 5 on each sound chip and none were going to low. I removed the chips, cleaned and put them back in but in switched them around and all started working. Guess it was not in the socket good or...
  11. W

    Macintosh SE/30 logicboard recreation (thread revival)

    Thanks for the post and yes, the first SE30 reloaded is done and working 100%. First reloaded I have every done. Now more to come and any type I feel I can do.
  12. W

    Macintosh SE/30 logicboard recreation (thread revival)

    Thanks so much for the reply Bolle. Guess why I could not get the rom to work even after doing the jumping on the 2 locations. I did not know about it needing to be reversed. A person send me the chips of a IIfx rom that would fit in the sockets I used but its stock ROM and should normally work...
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    Macintosh SE/30 logicboard recreation (thread revival)

    I bought some ram simms also single and putting in the ram, I broke 2 of them. Brittle plastic I would say. Now I am very careful putting in and removing the ram.
  14. W

    Macintosh SE/30 logicboard recreation (thread revival)

    A reply to my own message: I ended up removing the rom sockets and installed a 64pin Simm that I borrowed from another board. Doing this change, the board now works. I have not done major testing yet but it chimes, boots and runs OS, boots from blueSCSI internal and external. The issue I am...
  15. W

    Macintosh SE/30 logicboard recreation (thread revival)

    Hello all. I have completed board transfer and I am using the 4 DIP sockets for the rom. No good 64 pin SIMM found. I notice on the bottom of the board by the rom sockets there is a section that looks like a jumper or a bridge point to be made on both ends of the 4 sockets. Is there anything...
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    Mac 128K Mouse Issue - Need Help

    OMG what you said I never thought about. The voltage level coming to the via pin 13 for the mouse click. This can very well be the issue where it is not being pulled down enough to trigger. Not even checking the level, I went ahead and changed the resister pack and DANG! it now works. So yes...
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    Mac 128K Mouse Issue - Need Help

    I have the schematics and using it heavily. The 6522 handles the other ports, talked with the rtc and iwm and all that is working. The mouse moves and that also comes from the 6522 via chip. Address lines are checked and seem fine to me. Compared to another machine is identical.
  18. W

    Mac 128K Mouse Issue - Need Help

    An update on this: I removed the 6522 from the 128K board and the resistor pack that is on pin 38, 37, 36, 35. Installed a socket (good quality machine type). Removed the 6522 from a donor plus board and tried it. Same thing. Installed the resistor pack on the bottom of the board and tried...
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    Mac 128K Mouse Issue - Need Help

    Thanks for the reply. Yes, the single is all the way to the top of the pin 14 that goes low when button is pushed so it is getting into the 6522. The package is a 40 pin DIP so pin 21 is the IRQ. The single on 21 is high with dips to low but these dips are spaced out and when pressing button...
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    Mac 128K Mouse Issue - Need Help

    I have a Mac 128K original, not modified in any way, that I just fixed and is booting up and all. The mouse works with movement but the button will not do anything. I know the mouse is good as I use it on another machine. I have tested the DB9 port, the RC pack is good, and no trace damages...
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