Sony HB-F1XD
This page was last modified 00:47, 13 April 2019 by Rderooy. Based on work by Mars2000you and Gdx and others.



Sony HB-F1XD is an improvement of the HB-F1II. It is a similar model with a floppy disk drive and the power supply inside, and an extra keypad.

The keyboard is quite complete with special keys. There is a hardware PAUSE-button which hangs the computer when pressed. The SPEED-CONTROLLER slider (slow-motion) and the REN-SHA-TURBO slider (auto-fire for both joysticks and spacebar) are nice features for playing games.

Sony HB-F1XD was available in black and red on the floppy disk drive. It was aimed at the Japanese market.

Brand Sony
Type HB-F1XD
Year 1987
Region Japan
Original price ¥54,800
RAM 64kB in slot 3-3
VRAM 128kB
Media MSX cartridge, 2DD floppy disk (3.5")
Video Yamaha V9938
Audio PSG
Chipset Yamaha S1985
Extras speed controller, Ren-Sha Turbo (autofire), hardware pause key, floppy disk drive, F1 Tool disk


Sony HB-F1XD
Sony HB-F1XD rear
Sony HB-F1XD right side
Sony HB-F1XD bottom
Sony HB-F1XD with Box


The Sony HB-F1 is a MSX2 with a Z80A from Sharp (LH-0080A) and an MSX-Engine S1985 from Yamaha. It have two cartridge slots (one at the top, one at the back). Floppy Disk Controller chip is the 2793.

Slot Map

Slot 0 Slot 1 Slot 2 Slot 3-0 Slot 3-1 Slot 3-2 Slot 3-3
Page C000h~FFFFh Cartridge
Slot 1
Slot 2
Page 8000h~BFFFh
Page 4000h~7FFFh Main-ROM Disk ROM
Page 0000h~3FFFh Sub-ROM


Repair and Modifications

  • The systemboard has a daughterboard called "HIC-1" which contains three SMD electrolytic capacitors which will leak over time and badly damage the board around it. Please see this thread about replacing them.