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I've been totally unavailable the last few days, but the previous post saying the Picos "get hot" when plugged in very strongly pointed to hardware issues on the Pico units. The added 4.7k ohm resistors are unlikely to cause these hardware failures, as later BlueSCSI versions use exactly this...

That's really quite strange. I just modified one of my units based on the instructions here and it boots right up on my Portable. Tested sleep, and that works too. It's even a 2022.12a like yours. Don't have much to go on for why this wouldn't work properly.

With the Portable fully "turned off" there should be no SD card access going on. It should be relatively safe to pull the SD card and manipulate files / images in this scenario because there's no drive activity.

A modification such as the below would probably work for your Portable-specific board. Take the voltage from PDS A2, pass it through a diode, and connect to the side of C16 as shown. No additional grounding should be necessary, just this one connection. Though I suggest checking with the...

This is almost certainly because your BlueSCSI is an older hardware revision which is known to have issues waking from sleep. A fix is documented here: https://github.com/BlueSCSI/BlueSCSI-v2/wiki/Hardware#hardware-tweaks--fixes JDW has tested these changes on his Portable-specific fork PCB...

Actually a great many people use the DB25 style specifically for this kind of usage. Plug it in when enjoying your vintage system, and unplug or put away when finished. Allows use of a single BlueSCSI across many systems. In terms of "how best to avoid the BlueSCSI turning off in a sleeping...

I found this page with a bunch of pictures of SCSI to Ethernet solutions from a few providers: https://applerescueofdenver.com/products-page/networking/networking-cables-amp-adapters/scsi-to-ethernet-adapters-external/ Every one of them has an external power adapter plug. And I think this may...

April 13, 2024 Board Meeting Attendance: Kai Robinson, fogWraith (Christian), Jacob (Androda), Justin (jdmcs) Absent: Josh (Drake), Eric (eric), Bruce (Branchus) Agenda: Item 1: Governance Policies Notes: Board Governance Policies have been agreed upon and now they need to be presented to...

Yes indeed. The PowerBook 100 is a miniaturized Mac Portable with a few improvements in the power management circuitry. Lead acid primary battery for the win.

Anyone have the TRG Xtra Xtra (or Pro) upgrade, or any other RAM / flash upgrade boards for Palm Pilots? You may be able to guess where I'm going with this question.

I enjoyed Palm Pilots. Had the Fossil Abacus Wrist PDA watch, which honestly was mostly useless but still random and fun.

Although the M5120 and M5126 are different, I believe the connections between Power Manager chip and VIA are the same. Check that all the data bits and PMACK/PMREQ traces are solid using the available Portable schematics. The power manager chip itself also needs a good 5v supply, which the...

The /AS line is used to determine whether the RAM upgrade card should be "selected" for use by the system. Removing that jumper "floats" the /AS input so depending on your local electromagnetic interference it might disable the RAM card. Or it might cause problems if sometimes the card thinks...

I did not, because of the answer to question #3. Correct, the main 5.2v rail is required for PRAM value retention. I do not recommend storing the Portable for any long-term period of time with a 9v battery installed. And thus have decided simply not to support the installation of 9v PRAM...

Two resistors are required. One end of the resistor connects to the point on the Pico header as shown. The other end of the resistor may connect to either of the specified points on the left of C13 or C9.

Well done. Now hopefully the copper doesn't oxidize over time and break contact.

Got any pictures of the melted section? Depending on which cable was melted we might be able to recreate it. Though if I'm understanding correctly, this is the interface to the resistive touch sensor area - and I believe that's hard-connected to the panel.

As I just discovered this morning, the Exabyte 8505 tape drive (and likely others in this series such as 8500, 8200, 8205, 8700, 8705) are affected by the leaky SMD capacitor plague. These drives have a vertically mounted power converter section which naturally has leaky capacitors dumping...

That depends entirely on whether the external 5v video power line is disabled when the Portable is in sleep mode. I would have to check. It's a switched supply, so if power is cut to the external video pin in sleep mode then it would be safe to remove. Note that the external video port has a...

Stock counts are low on the Mac Portable VGA adapter, but more will be on the way soon. This product does what it says: Mac Portable digital video out port -> 640x480 VGA. Doesn't convert the other way, sorry. https://androda.work/product/vga-adapter-for-macintosh-portable/