Uploaded July 2025 | Updated September 2026, 1 week ago
Earlier this year, I bought a "ROM Version 4 Model A2S4100" Apple //c from eBay (the place where I buy the things I later regret™). I verified that it did power up, but I had misplaced my floppy disk box so I couldn't run MECC Computer Inspector. I think it's about time that we complete the inspection.
In addition, the Apple //e that I bought on eBay for $132.38 total was delivered on Tuesday. It's... interesting. When I showed the pictures of it on Dave's stream the Sunday before last, it became apparent that it wasn't in an Apple //e case. Now that I have it in-hand, I don't know why someone did what they did. But there are expansion cards and interesting mods to inspect. Plus we need to see if it even works.
Will we find any surprises in the Apple //c? Will we figure out the mystery of the Apple //e? And what case *is* the Apple //e in? You'll have to watch to find out!
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**
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Earlier this year, I bought a "ROM Version 4 Model A2S4100" Apple //c from eBay (the place where I buy the things I later regret™). I verified that it did power up, but I had misplaced my floppy disk box so I couldn't run MECC Computer Inspector. I think it's about time that we complete the inspection.
In addition, the Apple //e that I bought on eBay for $132.38 total was delivered on Tuesday. It's... interesting. When I showed the pictures of it on Dave's stream the Sunday before last, it became apparent that it wasn't in an Apple //e case. Now that I have it in-hand, I don't know why someone did what they did. But there are expansion cards and interesting mods to inspect. Plus we need to see if it even works.
Will we find any surprises in the Apple //c? Will we figure out the mystery of the Apple //e? And what case *is* the Apple //e in? You'll have to watch to find out!
*
Use discount code JUSTINTIME for for 5% off all Computerized Start™ merchandise at https://shop.jdmcs.com.
*
Ways to Support the Channel:
☕️ Tips or Support via Ko-fi: ko-fi.com/jdmcs
🈷️ Support me on Patreon: patreon.com/jdmcs
📦 Amazon Wishlist: jdmcs.net/wishlist
... or simply do the YouTube things: Like/Dislike, Comment, Subscribe, Enable Notifications, and participate in the Chat. These things help the channel, too!
**
Read Computerized Start™, my Official Blog: jdmcs.net/myblog
Follow me on Instagram: jdmcs.net/myinstagram
Follow me on Twitter: jdmcs.net/mytwitter




![The Macintosh IIsi: Can I Find the Broken Trace(s) on Either Logic Board? (Computerized Start™ Live)
The Macintosh IIsi was launched as a lower-cost alternative in the Macintosh II series. To keep costs down, Apple used more electrolytic capacitors, and the surface-mount electrolytic capacitors from the early 90s are past their expected lifetime. In addition, despite the power supply being made by Sony, the capacitors in it are also known to leak (though I cant help think cost tweaking by Apple led Sony to use lower grade capacitors).
When the capacitors seal fails, the leaking electrolyte can and will cause damage to the board. Component damage is possible, but I think I cleaned the electrolyte off before this could happen on either logic board (but well keep that possibility in mind). More likely, electrolyte seeped under a chip and worked its way under the solder mask to corrode one or more traces. The break could even be small enough to not be apparent without magnification... or a multimeter.
Get ready to embrace the beep of the multimeter in continuity mode, as we have 32 data and nearly as many address lines to check at multiple end points... IIsigh.
Will we find trace damage on either logic board? Will I have to remove the most difficult to solder parts (looking at you 68030 and RBV chips)? Will I have at least one working logic board by the end of the stream? Youll have to watch to find out!
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Table of Contents
0:00:00 Pre-Roll
0:02:39 Greetings and Announcements
0:04:20 Things You All Have Given Me & NoVA Meetup Pickups
0:12:32 Wheel of Regrets™ (Who comes up with these titles anyway?)
0:12:55 Wheel of Regrets™: Dell 4/33 Motherboard (for my Dell 4/25P)
0:21:12 Wheel of Regrets™: Eight Tested 8MB EDO SIMMs
0:23:40 Wheel of Regrets™: [More] Macintosh Plus/SE/etc. Case Screws
0:24:42 Wheel of Regrets™: Nintendo SNS-CPU-RGB-02 Motherboard (for SNES)
0:28:14 Wheel of Regrets™: ATI EGA Wonder (replacement for the weird text card)
0:31:55 Wheel of Regrets™: Iomega Zip 100 5.25 Blue Internal SCSI Drive (originally for Amiga?)
0:43:30 Wheel of Regrets™: Testing the SNES Motherboard
1:01:00 A Whole Lot of Me Finding and Setting Up Parts to Test Video Cards
1:10:30 Trouble with the RGBtoHDMIs microSD Card...
1:37:50 Wheel of Regrets™: Testing Two EGA Cards, including the ATI EGA Wonder
2:15:22 Clearing the Workbench so We Can IIsigh...
2:22:15 The Great IIsi Broken Trace Search (from IIsi number 1 and IIsi number 2)
3:53:59 Closing Thoughts
3:55:49 Outro
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![COMPUTER Repair: Three Rows of Sockets To Go In My MCA Apple ][+ Clone (Computerized Start™ Live)
If COMPUTER, my MCA Apple ][+ Clone, could sing, it might be singing:
Desolder me down (Repair)
You desolder me, you desolder me
Or something like that...
Theres three rows of bad sockets left in COMPUTER, so the project to replace all the original sockets is in the home stretch. With each new row of sockets, both the appearance of the motherboard and my confidence in a fully-working COMPUTER increases. Maybe tonights the night.
Will I get the remaining sockets replaced tonight? Will I be able to test the board? Will I find a mistake the had way? Youll have to watch to find out!
*
Use discount code JUSTINTIME for for 5% off all Computerized Start™ merchandise at https://shop.jdmcs.com.
*
Ways to Support the Channel:
☕️ Tips or Support via Ko-fi: https://ko-fi.com/jdmcs
🈷️ Support me on Patreon: https://www.patreon.com/jdmcs
📦 Amazon Wishlist: https://jdmcs.net/wishlist
... or simply do the YouTube things: Like/Dislike, Comment, Subscribe, Enable Notifications, and participate in the Chat. These things help the channel, too!
**
Read Computerized Start™, my Official Blog: https://jdmcs.net/myblog
Follow me on Instagram: https://jdmcs.net/myinstagram
Follow me on Twitter: https://jdmcs.net/mytwitter COMPUTER Repair: Three Rows of Sockets To Go In My MCA Apple ][+ Clone (Computerized Start™ Live)](https://i.ytimg.com/vi/LEtutHlUnMs/mqdefault.jpg)