General Category > Lisa Troubleshooting and Repair

Using a Widget Drive in a Lisa 2/5

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AlexTheCat123:
I was lucky enough to stumble upon a Widget drive at an e-waste recycler around a week ago (unfortunately, the rest of the Lisa was nowhere to be found) and I'm going to try to repair it in the coming weeks once my schedule gets a little less busy. Unfortunately, I only have a Lisa 2/5, so I'm unsure about whether the Widget would actually work with my Lisa. Since it uses the same interface as the ProFile, I would assume that I could just connect it to the external parallel port with the appropriate cable, right? Has anyone actually tried this before?

rayarachelian:
Congrats. Yes it will work with a Lisa 2/5, but you'll need to rig up external power and a DB25 to ribbon cable.

I'm not sure, but you might need +12V and -12V as well as +5V and GND. I think the drive cage uses a 24V fan, but not sure if the -12V is used by the drive or just the fan. Obviously you can use whatever fan you like in your own enclosure. I think the fan hooks up to the drive with a 2 (or maybe 3?) pin plug, but obviously not needed for your own enclosure + fans.

If you have an old full height SCSI drive enclosure it might work, but yeah, the power supply might be an issue.

AlexTheCat123:
Great! It should be really easy to make the appropriate DB25 to ribbon cable and I can use an ATX power supply for testing just like I did with my ProFile.

rayarachelian:
Sure, an ATX PC power supply should work, though you may need to force it to power on by shorting the right pins. see: https://www.smpspowersupply.com/connectors-pinouts.html

AlexTheCat123:
Yep, I've got an ATX power supply that has a wire permanently soldered between those pins that I use for testing stuff.

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