Vintage LCD x3 – Let’s try to repair 3 different TRS-80 Model 100 LCD panels

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

In this video we take a look at three different TRS-80 Model 100 LCD screens, each of which has a different problem. We’ll learn how to test the LCD driver chips, interpret the waveforms they put out and see how many of the screens can be fixed.

How many can we get working properly again? Perhaps one or two or maybe even all three? Join us and find out.

Timeline:
00:00 – Welcome
01:08 – Evaluating the LCD screens
06:35 – Screen A repair
15:58 – Screen B repair
29:38 – Screen C repair
45:59 – Wrap up

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Links
M100 Zebra strips: https://www.soigeneris.com/trs-80-model-100-lcd-zebra-strips
M100 Screen tips: https://ftp.whtech.com/club100/ref/lcdtip.doc
M100 Screen Test Program: https://github.com/Jeff-Birt/M100_Screen_Test

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Credits
Chiptune Thing No. 3 "Victory" by Steven O’Brien https://soundcloud.com/stevenobrien
Creative Commons — Attribution 3.0 Unported— CC BY 3.0
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Music provided by Music for Creators https://youtu.be/ujIMRIJ1JG8

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