• Updated 2023-07-12: Hello, Guest! Welcome back, and be sure to check out this follow-up post about our outage a week or so ago.

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    Looking for suggestions/sources for Newton Power Switch replacement component

    Wondering if anyone knows a good source (other than cannibalizing another unit) for replacement power switches for a Newton 130.  I'm refurbishing one.  Among the issues is a broken power switch, component J12 on the motherboard (circled in pink in the attached photo).  I've spent hours going...
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    AppleCD SC M2850 disassembly

    And it lives!  I guess I got lucky.  This one apparently only needed a good lens cleaning.  I bought it "for parts only" on eBay recently.  It would always eject the caddy after a few seconds.  I'm glad I didn't have to do much troubleshooting.  This model really is not fun to tear down and...
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    AppleCD SC M2850 disassembly

    Thanks.  Got it open.  Now troubleshooting the drive while the case retrobrites.
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    AppleCD SC M2850 disassembly

    I trying to find some tips on disassembling an M2850 external CD drive.  I've searched Google with no luck.  There are no screws on the bottom.  I THINK there are some tabs on the side that may be keeping the top on.  But I haven't had any luck opening the case so far.  Any suggestions or...
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    Extended Keyboard II troubleshooting

    Turns out it was a combination of the ADB cable itself being somehow bad as well as a few non functioning key switches. I finally got another AEKII and it works fine. The old AEKII works with the beer cable but has a few non responsive key switches. I’ll despiser those individually and...
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    Extended Keyboard II troubleshooting

    Larry Pina's books have been invaluable to me in restoring this computer.  However, the problem isn't just with a select few keys.  The keyboard just stops working altogether after a while. I removed all the keycaps but the key switches are attached to the PCB through the metal plate.  I...
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    Extended Keyboard II troubleshooting

    I'll give it a few more tries.
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    Extended Keyboard II troubleshooting

    Aaaaand it's back to not working again.  I'm so glad I have another AEK II on the way.  The previous owner(s) must have poured a lot of Mt. Dew on this thing.  Maybe some day I'll get bored enough to use my Hakko desoldering gun on this thing and separate the PCB from all the key switches.  For...
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    Extended Keyboard II troubleshooting

    Some keys are not responding and others are intermittent.  This will definitely need more washing, I think.
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    Extended Keyboard II troubleshooting

    Well, how about that!  Alcohol bath and blow dryer revived it.  There must have been some residual gunk between that non-removable metal plate and the PCB underneath causing a short.  I really wish I could get under that plate and give the PCB a proper scrubbing.
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    Extended Keyboard II troubleshooting

    Just got one reading the ADB section of the book.  Thanks for the referral.  It's very informative.  Based on everything he says, I'm convinced the problem is with my keyboard and not the logic board.  Mouse does not work when daisy chained.  The caps lock LED does not illuminate when the caps...
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    SE/30 Logic Board with broken SCSI and ADB for mouse movement

    I’m interested in the solution to this ADB issue as I’m currently troubleshooting the reverse situation in which my SE/30’s mouse works fine, but the keyboard is unresponsive.
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    Extended Keyboard II troubleshooting

    First time posting here.  I recently acquired an SE/30. Advertised as computer and mouse  work, but keyboard does not work. Unsurprisingly with old computers shipped in the summer heat, the computer wasn’t working by the time it arrived on my front porch. I did I a full recap and cleaning of...
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