Panasonic FS-A1FM
This page was last modified 14:20, 2 January 2018 by Mars2000you. Based on work by Gdx and Tabajara-Labs and others.



The Panasonic FS-A1FM is similar to the FS-A1F but has a built-in modem and comes with the first edition of the MSX-Engine T9769, which will be used later for MSX2+ and MSXturboR machines. It was aimed at the Japanese market. This model is available in black.

Official price: ¥89,800

The built-in firmware is a special edition of the well-known Panasonic DESKPAC software (Clock settings, Screen adjust, Clock, Calendar) with modem features (Modem settings and Phone Book, Access to THE LINKS network, Documents Management). Note that the Calculator has been removed.

A part of the DESKPAC software is provided on an Utility disk that has its own menu and includes a disk tool, a graphic tool in SCREEN 8 and the application Word Processor, Address Book & Name Card. When you close one of these applications, you go back to the MSX-DOS command line. You can then enter TOOL to relaunch the menu of the Utility disk.

The modem can be de-activated and the built-in firmware skipped by pressing DEL key while booting. You can also skip the firmware without de-activating the modem by changing the position of the switch at the back before booting the computer. From MSX-BASIC, it is possible to access to the modem settings and the phone book with CALL TELCOM or _TELCOM if you haven't de-activated the modem when booting.

Brand Panasonic
Type FS-A1FM
Year 1988
RAM 64kB in slot 3-0, 8kB SRAM
VRAM 128kB
Media MSX cartridges, 2DD floppy disks
Video Yamaha V9938
Audio PSG (AY-3-8910 compatible, integrated in MSX-Engine T9769)
Chipset Toshiba T9769
Extras 720kB 3,5" floppy disk drive, MSX-DOS (on disk), DESKPAC firmware (special edition with modem features), reset button, pause button, built-in modem, MSX-Modem BASIC, Kanji-ROM level 1, 12x12 Dot Kanji ROM, Utility disk



Panasonic FS-A1FM
Panasonic FS-A1FM keyboard
Panasonic FS-A1FM detail of keyboard
Panasonic FS-A1FM right side
Panasonic FS-A1FM back
Panasonic FS-A1FM box and content
Panasonic FS-A1FM PCB
Panasonic FS-A1FM MSX-Engine T9769
Panasonic FS-A1FM gate array uPD65013GF457


DESKPAC Clock settings
DESKPAC Screen adjust
DESKPAC Calendar
DESKPAC Modem settings and Phone Book
DESKPAC Documents Management

Utility Disk

DESKPAC - Utility disk - Menu
DESKPAC - Utility disk - Disk tool
DESKPAC - Utility disk - Word Processor, Address Book & Name Card
DESKPAC - Utility disk - Graphic tool


The Panasonic FS-A1FM is a MSX2 with 2 cartridge slots (one at the top, one at the back) and a Z80A integrated in the MSX-Engine T9769 from Toshiba. On the back of the computer, there is a switch to eventually skip the special edition of DESKPAC firmware with modem features. The modem speed is 300/1200bps.


  • RF output
  • RGB output
  • Analog sound & Composite video
  • Two RJ11 modular connectors for modem (line in and telephone out)
  • Tape recorder connector
  • Centronics compatible Parallel port for a printer
  • 2 general connectors (joysticks, mouse, paddle controllers, ...)
  • 2 cartridge slots

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