National FS-5000F2
This page was last modified 15:21, 30 January 2022 by Mars2000you. Based on work by Gdx and Sdsnatcher73 and others.




The model FS-5000F2 is based on FS-5500F2. The name of this computer is FS-5000 as indicated on front, but the label on back and on the box specifies its link with the FS-5500F2 model by indicating FS-5000F2.

Compared to the FS-5500 series the audio/video control panel, trackball and superimpose/digitize capabilities have been removed but the memory goes up to 128kB. It was aimed at the Japanese market. Only the version with 2 floppy disk drives was released (there is no FS-5000F1).

The PSG sound output is stereo on the rear RCA terminals, the RGB21 connector as well as the headphone output. A switch on the back allows to switch to mono, which affects the RCA terminals and the RGB21 connector but not the headphone jack (this remains stereo). Another switch allows a selection between JP50on or JIS keyboard layout.

Firmware data can be saved on the FS-CR1008S cartridge. It contains 8kB SRAM and a battery to preserve them when the computer is off. This professional computer has three expansions slots that can be used to increase the RAM.

Brand National
Model FS-5000F2
Year November 1986
Region Japan
Launch price ¥158,800
RAM 128kB in slot 3-2
VRAM 128kB
Media MSX cartridges, 2DD floppy disks
Video Yamaha V9938
Audio PSG
Chipset Probably Yamaha S1985
Keyboard layout QWERTY/JIS by default (JP50on available with switch) + numeric keypad
Extras Two 720kB 3,5" floppy disk drives, separate keyboard, reset button, eject button for each cartridge slot, switch for choosing keyboard layout, stereo PSG sound switchable to mono for the RCA outputs and RGB21 connector, general volume controller at front, headphone jack with volume controller at front, backup of the clockchip data, Kanji-ROM level 1, MSX-DOS 1 + Japanese Word Processor (on disk)
Emulation ROMs dumped and emulated, except for the 3 special expansion slots in the back which need validation. Keyboard switch is set to JIS and cannot be changed.


Besides MSX-DOS 1, the provided floppy disk contains a Japanese Word Processor with 5 options: 1 - New text - 2 - Edit text - 3 - Print - 4 - Save - 5 - Load. Options 1 and 2 are preceded by the text settings, option 3 by the printer settings.

The procedure used for the kana-kanji conversion is the same as with the FS-4500 or FS-4700 firmware, and is not compatible with MSX-JE.

To run MSX-DOS, you need to press CTRL+STOP when booting with the disk in drive A, this to avoid the launching of the Word Processor.



National FS-5000
National FS-5000 front
National FS-5000 back
National FS-5000 front
National FS-5000 back
National FS-5000 keyboard
National FS-5000 inside
FS-5000/5500 Expansion Slots PCB
National FS-5000 box (close-up)
National FS-5000 label


National FS-5000 Japanese Word Processor - intro screen
National FS-5000 Japanese Word Processor - creating mode
National FS-5000 Japanese Word Processor - printer settings


The National FS-5000F2 is a MSX2 with 2 cartridge slots and two 3.5" disk drives on the front. The CPU is a Z80, probably from NEC (D780C-1). The MSX-Engine comes from Yamaha (probably S1985). The floppy disk controller is the MB8876A from Fujitsu Microelectronics.

The three slots in the back have the same pinout as standard expansion slot but the connector is different. The location seems to be the slots #0-1, #0-2 and #0-3.

Slot Map

Help needed
The location of the three expansion slots needs to be checked on a real machine.
Slot Slot
0-0 0-1 0-2 0-3 Slot 1 Slot 2 3-0 3-1 3-2 3-3
Page C000h~FFFFh Slot
Slot 1
Slot 2
Page 8000h~BFFFh Kanji
Page 4000h~7FFFh Main-ROM Disk ROM
Page 0000h~3FFFh Sub-ROM


  • RF output with channel selector switch
  • RGB output (RGB21)
  • Video composite and stereo analog sound output (RCA)
  • Keyboard connector
  • Headphone jack (3.5mm), the output of the headphone jack is stereo regardless of the position of the stereo/mono switch on the back
  • Centronics compatible Parallel port for a printer
  • Data Recorder connector
  • 2 general connectors (Joysticks, Mouse, Paddle controlers, etc)
  • 2 cartridge slots at front
  • 3 expansion slots on the back
  • Power plug for main power supply (JIS C 8303 class, AC 100V +/-10% 50/60Hz)
  • 2 power outlets for monitor (AC 100V)
  • Floating ground