Panasonic FS-A1WSX
This page was last modified 16:30, 5 January 2017 by Rderooy. Based on work by Mars2000you and Gdx and others.

Contents

Description

The FS-A1WSX is a computer released on the Japanese market by Panasonic. It was the successor of the FS-A1WX and incorporated a few changes :

  • the Data Recorder connector is replaced by a S-Video output; the cassette port on this machine is combined with the RGB connector, it is possible to load/save via this connector, but the volume is very low by comparison with the normal tape interface
  • an improved A1 Cockpit with color printer support, especially useful for the provided Word Processor

A Ren-Sha Turbo feature provides auto-fire mode while playing games. The repetition speed can be adjusted with a slider.

This model was available in black. Official price: ¥69,800

By comparison with the FS-A1WX, the built-in Cockpit software is very similar, including the Word Processor where one of the options requires the first system disk with the MSX-JE input system for the kana-kanji conversion. The design of the main menu and the other options has been revisited, the music of the cockpit is no longer deafening. On the second system disk, the picture gallery has been replaced by a tool for the Panasonic FS-PC1 color printer.

Contrary to the previous Panasonic MSX2 and MSX2+ machines, the DEL key no longer disables the built-in firmware application while booting : the firmware can be skipped only by changing the position of the front switch before booting the computer. From MSX-BASIC, you can go to the firmware menu with CALL MENU or _ MENU. When you quit an application of the second system disk, you come on the MSX-DOS command line; by entering TOOL on this command line, you can go back to the menu of this system disk.

Brand Panasonic
Type FS-A1WSX
Year 10-1989
RAM 64kB
VRAM 128kB
Media MSX cartridges, 720kB 3,5" floppy disks
Video Yamaha V9958
Audio PSG, MSX-MUSIC
Chipset Toshiba T9769 model B or C
Extras MSX-JE, Ren-Sha Turbo (autofire), hardware pause key, 256kB Kanji-ROM JIS 1st+2nd level, firmware (A1 Cockpit, Word Processor with support for color printers, etc), Z80 compatible CPU built in MSX Engine (T9769x) that can be switched to from 3.57 MHz to 5.37 MHz via I/O port, 2DD floppy disk drive, 16kB SRAM, Kanji BASIC

Pictures

Panasonic FS-A1WSX
Panasonic FS-A1WSX rear
Panasonic FS-A1WSX leftside
FS-A1SWX PCB
FS-A1SWX PCB back
FS-A1SWX manuals
FS-A1SWX box

Specifications

The FS-A1WSX is a MSX2+ with 2 cartridge slots (one at the top, one at the back) and a Z80A integrated in the MSX-Engine T9769(B or C) from Toshiba. This Z80A can be switched from to 3.57MHz to 5.37MHz via I/O port. There is a front switch to eventually skip the firmware execution.

This model supports up to 256 kB of RAM after doing a little soldering. 512 kB is also possible with a more complicated modification. (See below)

The Panasonic FS-PC1 printer is required to print in color.

Connections

  • RF output
  • RGB output/cassette port
  • S-Video output
  • Analog sound & Composite video
  • Centronics compatible Parallel port for a printer
  • 2 general connectors (joysticks, mouse, paddle controllers, ...)
  • 2 cartridge slots

CPU Turbo mode

Contrary to Sony and Sanyo MSX2+ systems which run only at 3.57 Mhz, the Panasonic systems are capable of running at 5.37 MHz. In Basic this can be achieved using the following commands:

Enable the 5.37 MHz Mode

Switching to Turbo 5.37 MHz mode can be activated with the following command:

IF PEEK(&H2D)=2 THEN OUT 64,8:IF INP(64)=247 THEN OUT 65,0

Disable the 5.37 MHz Mode

Switching back to 3.57 Mhz is done with this command:

IF PEEK(&H2D)=2 THEN OUT 64,8:IF INP(64)=247 THEN OUT 65,1

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