Parts/Service for MZ-800

The MZ-800 is a personal computer with a Z-80A CPU running at 3.5469 MHz. It features a 16 KB monitor/CG ROM and 64 KB of basic RAM. The display system supports various resolutions (320x200, 640x200) and color options, with modes for bitmap and character-based graphics. Input/output capabilities include internal interfaces for sound generation and Centronics, as well as external interfaces like RS-232C and a joystick port. Expansion slots allow for additional peripherals. Memory management is handled through memory banks, with different configurations for MZ-700 and MZ-800 modes. The system utilizes a pseudo cycle steal method for VRAM access to enhance processing speed. The scroll control circuit allows for programmable horizontal and vertical scrolling by means of VRAM address conversion.