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    Restoring SE/30 - Melted/damaged CRT power and CRT residue

    I replaced both male and female connector on most of my compact Macs. Majority was charred. Not as bad as yours, but surely in bad conditions. You don’t need to re-crimp the male connector, just extract the pins (there’s a dovetail lock) and replace the plastic part. As for the female one...
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    Copying legacy software from internet repositories to 68k Macs

    Dear All, I am sure the topic is thoroughly covered, but honestly I couldn’t find a single reliable source of information, so I decided to start a new thread. Topic: how to download legacy software from web archives (such as the Macintosh Garden) and effectively deploy it on target 68k...
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    BlueSCSI on Macintosh Portable

    You probably saw it already, but I confirm I take the power directly from the internal SCSI connector (both 5 and 12V, regardless whether they are used or not). So, same working logic as the original Conner drive.
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    BlueSCSI on Macintosh Portable

    Just checked: there's no power to the board when the machine is in sleep mode. As I push any key and wake it up, power surges immediately.
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    BlueSCSI on Macintosh Portable

    Complete pinout here: https://tinkerdifferent.com/resources/macintosh-portable-scsi-adapter.38/ (PDF download)
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    BlueSCSI on Macintosh Portable

    I guess the culprit is now identified. Btw, the adapter I am using is constantly powering the BlueSCSI unit.
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    BlueSCSI on Macintosh Portable

    Uh, that’s interesting, thanks for sharing! Honestly I don’t remember the configuration, I might have used the patched Apple disk formatter. That could explain.
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    BlueSCSI on Macintosh Portable

    I am using no special configuration (Mac Plus) and a self made adapter (some pics in the Resources section of the forum). Virtual drive formatted using HD Toolkit and with HDT driver installed. I just did a random test, waking it up 10 times in sequence after sleep. Not a single failure, even...
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    BlueSCSI on Macintosh Portable

    I have BlueSCSI first series installed in my non back lit machine with 5 Mb of RAM. Running 7.5.3. Before I had a SCSI2SD 5.1 and the machine would systematically crash upon waking up from sleep. With the BluesSCSI things are much better, still it occasionally crashes. Can’t observe any pattern...
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    HD20 Diagnostics

    Honestly I don’t remember, most likely I recapped the PSU, though. The unit I have stutters a bit when I power it up, but then it just works. But I’ve got to admit I’m not using it since a while… Another likely issue is the parking position bumper of the r/w head. They tend to become sticky, due...
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    HD20 Diagnostics

    In the case of the one I have, the HD struggles to spin once powered up. So, it is recognized, but can’t be mounted. Once it spins, all the rest seems to be OK and the drive can be “used”. Inside there’s a custom Rodime drive. However, apart from the logic board, it seems to me very close to...
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    NeXT 400 dpi Laser Printer

    I recently refurbished a dead NeXT 400 dpi Laser Printer. First time I deal with laser printers, very fascinating devices, there’s a lot to learn. Anyhow, it’s been a matter of - guess what? - recapping every single board, many small caps were totally busted. Major issue, though, was...
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    Rescuing data from a Mac Portable HD on another Mac?

    My experience is limited to just 2 of those custom Conner drives, both were seemingly spinning and scratching, but unable to be mounted (Portable booting from external HD). Eventually I opened them up for the sake of curiosity and… inside it was a complete jam, with the platter surface totally...
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    120GB SSDs in G4 Cube

    If I remember correctly, there’s a jumper in the optical drive, too
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    120GB SSDs in G4 Cube

    I would say “master”, “slave” is for the optical drive.
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    BlueSCSI v2 Pico - Low cost, open hardware, fast SCSI device!

    I honestly have no clue, it goes beyond my knowledge, I would need to study the specifications of the SD card standard.
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    BlueSCSI v2 Pico - Low cost, open hardware, fast SCSI device!

    Amazon, to my eye it looks totally identical to the one sold by Arduino. What is “curious“ is that the original configuration is not seen by BlueSCSI, but works with my camera. If you remove the resistor, the card is seen at start up, but it immediately crashes the system.
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    BlueSCSI v2 Pico - Low cost, open hardware, fast SCSI device!

    It’s a possibility, I put some cores around, but couldn’t notice any difference. There are still some options to investigate: plain SD to SD Extender, using full size SD. Cable I have was meant for the SCSI2SD, so micro SD to SD, I am using two adapters (full size > micro) at both ends.
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    BlueSCSI v2 Pico - Low cost, open hardware, fast SCSI device!

    I did some extra trials, I confirm the v2 works fine with HP712, and I also confirm it doesn’t work with the extender cable. Apparently, it does, but you will soon start getting “media error” and that will be it.
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    BlueSCSI v2 Pico - Low cost, open hardware, fast SCSI device!

    I have the one in the picture and it doesn’t work, unless you take out the pull up resistor. Even in that configuration, though, the installer of the OS crashes reporting read/write issues durino the initialization. Once everything is installed by plugging the card directly in the device...