The Panasonic FS-A1WSX released in 1989 was the last MSX2+ made by Panasonic. It was the successor of FS-A1WX and incorporated few changes like S-Video output, no tape support, color printer support and an improved A1 Internal Cockpit software with a Kanji color word processor.
Contrary to other MSX2+ systems the Panasonic FS-A1 used a Z-80 compatible MSX-Engine (T9769x) which could be switched via software to 6 MHz. This model supported up to 256 KB of RAM after doing a little soldering. 512 KB was also possible with a more complicated modification.
Technical specifications Processor Z80 compatible MSX-Engine (T9769x) with clock speeds of 3.58 and 5.37 MHz Memory ROM: 1552 KB MSX BASIC v3.0: 80 KB MSX Disk BASIC v1.0: 16 KB Music BASIC (FM BIOS): 16 KB JIS 1st & 2nd class Kanji Support: 256KB MSX-JE: 512KB MSX-JE/WP (MSX Word Processor): 656 KB RAM: 64 KB VRAM: 128 KB SRAM: 16 KB Display VDP Yamaha YM9958 Text: 80×24, 40×24 and 32×24 (characters per line × lines) Graphical: resolution max 512×212 pixels (16 colours out of 512) and 256×212 (19,268 colours) Colours: 19,268 max Sprites: 32 max Sound PSG Yamaha AY-3-8910 (embedded in MSX Engine) MSX Music Yamaha OPLL YM-2413 Storage Memory 720 KB 3 1/2" DD/DS floppy disks
References
External links old-computers.com