Panasonic FS-SR021
This page was last modified 16:22, 29 June 2021 by Mars2000you. Based on work by Rderooy.




The Panasonic FS-SR021 is a set composed of a cartridge and a disk, released in 1988 by Panasonic.

The cartridge contains

  • a ROM with MSX2 Word Processor (MSX2用ワープロカートリッジ) - it's actually the same Japanese Word Processor with MSX-JE support as the firmware of the MSX2+ FS-A1WX computer, but slightly adapted
  • Kanji-ROM level 1 & 2 to provide Kanji support
  • 16kB SRAM

The mapper of the ROM with the Word Processor is similar to the mapper of the FS-A1WX firmware, but with some differences that need to be investigated:

  • which keys replace the "取消" (Cancel) and "実行" (Execute) keys as the MSX2 computers don't have these keys?
  • how potential conflicts with Kanji-ROM present in used MSX2 machine are prevented?
  • how does work the software switch, that replaces the front switch on the FS-A1WX?
Help needed
While the ROM is dumped, help is needed from someone who has the cartridge to reverse engineer the mapper and other details to allow it to be emulated. If you can help, see this thread.

Brand Panasonic
Model FS-SR021
Year 1988
Region Japan
Launch price ¥24,800
Package content FS-SR021 cartridge
2DD 3.5" Disk
2 Manuals
Emulation ROM dumped


The firmware is not launched automatically when you boot the machine, except when you have used this option with the software switch. So, you need to use CALL MENU or _MENU the first time you want access the firmware.

By comparison with the version available on the FS-A1WX, it's almost the same version of Cockpit software, the main difference is the additional software switch.

The firmware menu includes 10 options:

  • 1 - Japanese Word Processor
  • 2 - Beginner Word Processor
  • 3 - Word Processor Lessons (requires the System disk)
  • 4 - Address Book
  • 5 - Business Card
  • 6 - AV Labels (Video - Cassette - Diskette)
  • 7 - Mouse and Printer Settings
  • 8 - Accessories (Calculator, Calendar and Clock Settings)
  • 9 - MSX-BASIC
  • 0 - Software switch

Floppy disk

The provided floppy disk is very similar to the System disk that comes with the FS-A1WX computer.

It's a System disk that is required to use option 3 of the firmware.

However, it contains also MSX-DOS 1.



Panasonic FS-SR021 box
Panasonic FS-SR021 content of box
Panasonic FS-SR021 box (back)
Panasonic FS-SR021 PCB
FS-SR021 PCB (underside)
FS-SR021 cartridge and disk
Panasonic FS-SR021 manuals


Cockpit menu
Cockpit Japanese Word Processor
Cockpit Beginner Word Processor
Cockpit Word Processor Lessons
Cockpit Address Book
Cockpit Business Card
Cockpit AV Labels sub-menu
Cockpit AV Labels - Video
Cockpit AV Labels - Cassette
Cockpit AV Labels - Diskette
Cockpit Mouse and Printer Settings
Cockpit Accessories sub-menu
Cockpit Accessories - Calculator
Cockpit Accessories - Calendar
Cockpit Accessories - Clock Settings
Cockpit Software Switch

External Links