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Safest is full shutdown to remove the SD card. Depends on whether the drive logic power, motor power, and termination power lines are still powered in sleep mode. If all power sources are disabled then it's the same as being fully shut down. I suppose we could try to build in a mode that can...

I'd expect WiFi via RaSCSI to work fine in the expansion bay, for the reason you mention. Outside the primary RF shielding. Probably range reduced because it has to shout through plastic. Using the built in networking (aaui) should be substantially faster than any scsi-based solution...

For what it's worth, the Molex micro SD slot I've been using for awhile isn't a click-and-lock style but I've never had an SD card fall out. My test models have gone through many many card insertion cycles with no issues. Moving the connector around on the PCB certainly isn't the hard part...

The thing in parenthesis

I recently picked up a piece of hardware that can theoretically dump protected GALs (RF-3148), need to find some to practice on. Happy to help if desired, based in the USA.

If you're interested in getting a recreated eMate 300 display cable, DM me. I have a hidden listing on my site for them and can send you the link.

News on this project: I have designs which work, both DRAM-only and DRAM-plus-flash. This project has been thoroughly weird. As mentioned before, only one of the 10 I assembled (dram plus flash) last time worked at all (the first one, which gave me a false sense of hope). I revised that...

Generally speaking, the hybrid and power manager are the cause of a lot of issues. There are plenty of other options though, like corroded traces to RAM and other things.

Two hybrid recreations have been claimed by some of our friends in Europe, leaving two available for USA-based testers. DM me if interested.

There have been some questions about PCB color for the later production modules. I lean toward green, but can understand that people might want something closer to the original color (blue). What do people think?

PCBs arrived early, so I assembled and tested one this morning. It passed testing both on the dedicated test PCB and in a test Portable, which gives me pretty high confidence that it's going to work in general. These will probably not be listed and available for sale until after the conference...

PCBs for the first round should be here Wednesday. I'll hope to assemble and test a few before the weekend, it's going to be hectic and then I'm at a conference from the 8th to the 14th.

A new Optical Drive BETA Release has just been posted: https://github.com/androda/F4_BlueSCSI/releases/tag/1.1-OPTICAL-BETA-2022-07-27 This BETA release is based on the same branch from our friend @mynameistroy as the upstream Optical Beta. CD images are specified with "CD" instead of "HD"...

A new firmware release has just been posted. This one is not a pre-release, it's a full release. No issues were reported in the past month with the snapshot, and I haven't had any issues in testing. https://github.com/androda/F4_BlueSCSI/releases/tag/1.1-2022-07-27 This version is the same as...

Your F4Lite unit is not compatible with firmware for the original BlueSCSI. Only F4 and F4Lite specific firmware binaries will function properly. I don't yet have a build of this beta branch, it's something I need to work on. Been doing a lot of hardware-related prototyping recently. On the...

Unfortunately I don't know anything about the 520-like machines. Would be nice to have one for poking around at.

I don't own a Mac TV, but to my eye that capacitor pad probably goes to this via. It's the positive side of the capacitor (based on the curved silkscreen marking). If you check from that via to various other capacitors and chips, it will probably be connected to a power rail.

I'm hoping to have time soon to do all the calculating and get things in the right place for LC 520 and similar. With the SCSI port facing the right direction on my products, it should be easier. And I have yet another revision of the connector end that should make it even easier to line...

The pin spacing is standard 2.54mm. Was worried about that at first because they could have easily done something totally custom. But the mounting holes are for machine pin headers, not standard ones. I have a machine pin socket installed on a portable for testing, and exerting force properly...

After prototyping around a little more with opamps, I have sent in a new PCB design for manufacture. As mentioned in my previous post, this will be using all-new opamps instead of new-old-stock for better parts availability. The machine pin headers that are necessary for installation (mounting...