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Anyone know if that RAM design works? is it production? Looks like it is in testing. As for testing, I have the same .hda that I use in the BlueSCSI that I take from the Mac Portable and move it to my MacPlus (with 4MB) and it easily accesses my AppleTalk shares.... This further supports the...

The case survived my screw driver prying method from the entry point of the cable. I used some small shims to get it open. Nothing cracked but I just worked it slowly. There is one screw at the bottom holding the board down once you are inside the case, it was rusted well as it is right where...

Did you stick it back in the Original Power Supply Brick?

This is a screenshot of TechKnight's board that is Dremeled and clean that I used to check continuity....

Well. I just placed some small wires to extend the areas broken. The transformer fit fine with some careful guidance. Power supply is fully functional. This is the repair -- not pretty but functional. I didn't end up using the Dremel, just checked continuity and fixed some areas where the board...

Anyone get AppleShare/Appletalk working with a 2MB Macintosh Portable. I have only 2 MB and I'm running System 7.0.1. I tried to get System 6.0.8 but I can't get this to work...get System Errors frequently... I have tried both BlueScsi and ZuluScsi. I have set the "MacPlus" setting in the...

I’m awaiting your success with LCD replacement! @Froggy814

My screen slowly turns dark to the point it is unusable..... I am using an external monitor but not great.... is this the Tunnel Vision? or another problem?

I had the RAM error: 0000 0003 / 0000 FF00. Replaced the first lower row of RAM nearest to the Hybrid Module and.... the sweet sound of just the startup chime!! (without the sad Mac). Things look good, was able to test the RAM module (1 MB) and it is working. My screen is still a...

Well removing the Sony transformer I lost some legs -- they were pretty brittle. Anyone have a similar issue and fix it?

What was your approach to the carnage?

Working on various parts of my Macintosh Portable as I await RAM to replace on my board..... This is the M5136 (CR-76U) from my non back lit version. Is this salvageable? Should I just Dremel the lower part off and re-tin it....

@Froggy814 not sure which chip you are referring to as the DS3691V. Do you have the backlit version— I have the 5120 (non backlit).

Thanks for the help. Yes. It is a 5120. I did place a bodge wire without significant improvement; still the sad Mac on load. 0000 0003 / 0000 FF00 I'm a bit ignorant of the chip layout on the board; in addition for a new person to the board the silk screen indications are less than exact...

Just wondering if this is what I should expect on the 5V line. I'm new to occiloscope probing and need some guidance as to interpretation... I have a new to me Mac Portable that I'm trying to troubleshoot. I've replaced the caps but have the original hybrid module. There is some evidence of cap...

Great job @wottle. It was a breeze to install and get it up and going. I got Claude to help import my files from a rudimentary google doc inventory. Looks good.

Would love to buy a board off you....let me know. I'm in Asheville so not far.

Hi all, Following up on the files techknight posted earlier in this thread-- yes I've been using Claude to help analyze — I've been working through the Dynamic Engineering Portable RAM PAL sources and schematics, trying to get far enough to actually recreate this board. As far as I can tell...

I recently installed a ROMINATOR I on my Mac Plus. Everything is working well but on boot the chime ends abruptly with a click sound at the end. Stock ROM chime was fine. Other sound fine. ROM seems well seated. Is this expected?