National FS-4600F
This page was last modified 14:52, 14 February 2020 by Rderooy. Based on work by Mars2000you and Gdx.



The National FS-4600F is a "Word-pro Persocom" (Word processor Personal Computer) with a built-in 24 dots thermal transfer printer and a double-sided disk drive. The FS-4600F was available only in dark silver. It was aimed at the Japanese market. It came with a disk which contains a simple drawing program named "Image Converter" and MSX-DOS.

The original replacement ink cartridge is the CF-PR120

Brand National
Type FS-4600F
Year 1986
Region Japan
Original price ¥138,000
RAM 128kB in slot 3-2
VRAM 128kB
Media MSX cartridges, 2DD floppy disk
Video Yamaha V9938
Audio PSG (YM2149 integrated in MSX-Engine S1985)
Chipset Yamaha S1985
Extras FDD drive, reset button, 8kB SRAM (for software data back up), firmware (Japanese Word processor, English Word processor, MSX Address Book, visit card), Kanji-ROM level 1, MSX-JE (compound Kanji dictionary), dip witches for keyboard mode setting, printer pitch setting and firmware enable/disable
Emulation ROMs dumped and emulated with exception of the internal printer. The printer select switch is set to External printer and cannot be changed. The firmware application menu switch is enabled by default and cannot be changed. Keyboard switch is set to JIS and cannot be changed.


National FS-4600F
National FS-4600F back
National FS-4600F right side
National FS-4600F label
National FS-4600F mainboard
National FS-4600F annex board
National FS-4600F manuals + MSX-DOS disk
National FS-4600F box and content
National FS-4600F box


National FS-4600 Main menu
Option 1: Japanese Word Processor menu
National FS-4600 Japanese Word Processor
Option 2: English Word Processor
Option 3: Address Book & Business Card menu


The National FS-4600F is a MSX2 with 2 cartridge slots (in parallel one at the top). The CPU is a Z80 from Zilog (Z084C0004PSC). The MSX-Engine comes from Yamaha (S1985).

The integrated Word-pro software is version 3, which only provides minor improvements. The printer supports paper sizes up to B4. National also released a add-on cartridge, the FS-SR023 which allows the built-in word processor to print a 48 dot "Brush" style typeface.

While the machine provides the JIS1 and JIS2 Kanji ROMs, it does not provide the Kanji BASIC extensions.

Slot Map

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 Cartridge
Slot 1
Slot 2
Page 8000h~BFFFh Kanji driver
Page 4000h~7FFFh Main-ROM Disk ROM
Page 0000h~3FFFh Sub-ROM Word-Pro
Font 1
Font 2


External links