FS-A1WSX

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
 * Z-80 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