General Category > Lisa Troubleshooting and Repair
Diagnosing no power
sigma7:
--- Quote from: paule on March 06, 2023, 04:12:12 am ---just removing and reinserting the IO board brought the system back to life
--- End quote ---
Excellent progress!
That's probably an indication that the card edge connectors need cleaning, which may fix the error 71 problem too.
Sometimes it is enough to extract and reinsert each board a couple of times to wipe the contacts, but if the edge connectors haven't been cleaned in a few years then that's worth doing as it can resolve problems.
compu_85:
If the Widget doesn't spin, don't leave it powered - this can burn out the motor driver. Try to spin the spindle by hand - it should move freely. I'd guess its bearings are shot and it's gunked in place.
-J
paule:
--- Quote from: compu_85 on March 06, 2023, 12:32:20 pm ---If the Widget doesn't spin, don't leave it powered - this can burn out the motor driver. Try to spin the spindle by hand - it should move freely. I'd guess its bearings are shot and it's gunked in place.
-J
--- End quote ---
Good call comp_85 - I gave the spindle a good spin by hand (I didn't notice any resistance), then the drive spun up when I powered on the Lisa. Unfortunately, it got an error 82 trying to boot up from the drive. Baby steps...
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