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  1. TC01 rides again and other adventures

    New VRAM chips arrived in the post, so after socketing the board last week, it was a simple job of swapping two out and two new ones in.

    Glad I did socket the board as while the screen was now different, it still wasn't right. I had ordered 4 chips so put the other two spares in, and hey presto screen is now working. I now have at least one 'new' 4116 chip that is defective.

    With the screen fixed, it was possible to boot the system using the original 3" disks I ...

    Updated June 17th, 2020 at 04:35 AM by Gary C

    Tags: a500, amiga, tatung, tc01, zx81 Add / Edit Tags
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