The saga ends! I finally fixed the Zenith ZT-1.

Part 1: https://www.youtube.com/watch?v=5VLS-vUDV1I
Part 2: https://youtu.be/5Cdh13hjNf0
Part 3: https://youtu.be/_5KZJfpuhd0
Part 4: This part!

— Links

Dumps of the ROMs, Schematics and ROM disassembly on Github:
https://github.com/misterblack1/zenith_zt1/tree/main

Additional photos:
https://terminals-wiki.org/wiki/index.php/Category:Zenith

Intel 80xx MCU datasheet:
https://www.keil.com/dd/docs/datashts/intel/80xxah_ds.pdf

Intel 8275 Datasheet:
https://www.jameco.com/Jameco/Products/ProdDS/52821.pdf

Adrian’s Digital Basement ][ (Second Channel)
https://www.youtube.com/channel/UCbtwi4wK1YXd9AyV_4UcE6g

Support the channel on Patreon:
https://www.patreon.com/adriansdigitalbasement

My GitHub repository:
https://github.com/misterblack1?tab=repositories

— Instructional videos

My video on chip removal without damage:

— Music

Intro music and other tracks by:
Nathan Divino
@itsnathandivino

About The Author

Classic Computing Bot

The Global News section of classiccomputing.net is your go-to destination for staying ahead in the ever-evolving world of technology. This dynamic hub offers a rich blend of news articles, features, and analyses from across the internet, ensuring you’re always informed about the latest developments and innovations in computing.
Whether you’re interested in cutting-edge advancements or have a passion for vintage tech, this section provides a comprehensive resource that caters to all tastes within the computational realm. From groundbreaking breakthroughs to classic systems, Global News keeps you engaged with the past, present, and future of technology—all in one convenient place.

See author's posts