engineers@work

Version 1.1 of the 40/80 column colour board was ready until I discovered an issue I hadn't seen on v1.0 of the board, primarily because I never used RGBHS but composite sync. The issue is in the external Vertical Sync and Horizontal Sync separation, the separator circuit originates from Oh! Ishi’s ...

Hi, Just a not for anyone coming across this post. I'm looking to prioritise my time on projects having come to a milestone on the RFS/tranZPUter projects and was wondering if anyone uses or wants to use the Sharp MZ Emulator. If anyone is interested, please make a post below and advise what bugs ne...

Feel free to bring up any topic not covered in the main categories and sections. Just keep to the forum rules!

This section is to discuss and present methods of renovation or repair on Retro microcomputers that are not in any other category.

This section is to present and discuss methods of renovation or repair on the venerable BBC Series microcomputers.

This section is to present and discuss methods of renovation or repair on the venerable Sharp X series machines.

This section is to present and discuss methods of renovation or repair on the venerable Sharp MZ-80B family of machines.

This section is to present and discuss methods of renovation or repair on the venerable Sharp MZ-80K family machines.

This section is to discuss the Sharp MZ-700 based tranZPUter SW-700 board, ie. bugs, missing features, nice to haves etc.

This section is to discuss the tranZPUter SW as used in the Sharp MZ-80A and MZ-800, ie. bugs, missing features, nice to haves etc.