Repairing an Applied Engineering Z-RAM Ultra 2 for the Apple //c Computer (Part 2) скачать в хорошем качестве

Repairing an Applied Engineering Z-RAM Ultra 2 for the Apple //c Computer (Part 2)

Today the challenge continues! Will I be able to repair this destroyed Applied Engineering Z-RAM Ultra 2 card for the Apple //c computer? This card is a combination of clock card and RAM card for the Apple ][c, with built in battery backup. But someone forgot to get the darn battery out, it exploded and destroyed the board. Oh noes! Hang out with me today while I finish the repair and testing of this board. Last time on JCM! 00:00 Introduction: 00:24 Testing Chips: 00:41 What are GAL Chips? 01:35 Testing the GALS: 02:59 Re-checking the board for anomalies: 04:14 Removing Bodges: 06:02 Second Board Test: 08:57 Resistance is Futile! 10:30 They call me Sherlock Ohms: 11:08 Third Board Test: 12:00 Tracing more problems: 12:35 Fourth Board Test: 17:13 Clock Considerations: 17:55 Battery Bodge: 22:52 Battery Charge Prevention: 25:11 Final Test: 26:20 Outro: 28:30 Buy the tools I use and I get a commission to help the channel - you don't pay any extra, either! ▶ https://kit.co/JCM1/ Become a Patron ▶   / joescomputermuseum   Geek Toys ▶ https://www.jcm-1.com