TRS-80 Model 100 6-pack. Six M100s in need of some TLC.

Video sponsor: PCBWay: $5 for 2 layer PCBs with 24hr turnaround at https://pcbway.com/g/m3hn11

In this video we take a look at the first three of a six-pack of Trs-80 Model 100s that were sent in for some TLC. We’ll recap them, install a new memory battery, fix any corrosion found and fix any problems the test harness turn up. In a later video we’ll attempt some extensive cosmetic restoration on the other 3 units.

Timeline
00:00 – Welcome
01:51 – Unit #1, inspection and teardown
08:25 – Capacitor and cap removal. Corrosion clean up
14:22 – Wash and de-flux PCB
23:56 – Sealing corrosion fixes
24:46 – Battery contacts
26:38 – Let’s recap
33:51 – Install new mem battery, COM resistors, DeOxit connectors
39:39 – Test harness testing and fixes
50:15 – LCD polish and burn in testing
54:39 – Units #2 and #3
57:42 – Wap up. Thanks!
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Credits
Chiptune Thing No. 3 "Victory" by Steven O’Brien   / stevenobrien  
Creative Commons — Attribution 3.0 Unported— CC BY 3.0
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Music provided by Music for Creators    • Chiptune Thing No .3 Victory — Steven O’Brien