Sony HB-F1II
This page was last modified 09:50, 20 June 2019 by Rderooy. Based on work by Mars2000you and Gdx and others.




Sony HB-F1II is an improved version of the HB-F1. It is similar with the addition of a REN-SHA-TURBO slider (auto-fire for both joystick and spacebar).

The Sony HB-F1II was available only in black. It was aimed at the Japanese market.

The computer comes with an external power adapter, it includes a pause button that allows users to pause the system at will and a speed slider to slow down the system.

Brand Sony
Type HB-F1II
Year 1987
Region Japan
Original price ¥29,800
RAM 64kB in slot 3-3
VRAM 128kB
Media MSX cartridges
Video Yamaha V9938
Audio PSG
Chipset Yamaha S1985
Extras firmware (Address book, Schedule and Memo), pause button, speed controller, Ren-Sha Turbo (autofire)


The firmware is launched automatically when you boot the machine. Bypassing this software on startup requires the user to press the DEL key during boot until a Beep sound.

From MSX-BASIC, you can go to the Personal Databank with CALL HITBIT or _HITBIT.


Sony HB-F1II
FS-A1 & HB-F1II adapter
Aligned PCB Image Pair - Back
Sony HB-F1II PCB detail


The Sony HB-F1II is a MSX2 with 2 cartridge slots (one at the top, one at the back). The CPU is a Z80A from NEC (uPD780C-1). A MSX-Engine from Yamaha (S1985) is used.

The AC-HB3 power adapter specifications are the same as the Panasonic FS-AA51 adapter for the Panasonic FS-A1 and FS-A1mkII.

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 Firmware 2 Firmware 3
Page 4000h~7FFFh Main-ROM Firmware 1
Page 0000h~3FFFh Sub-ROM


  • RGB output
  • RF output
  • Analog sound & Composite video
  • Tape recorder connector
  • Centronics compatible Parallel port for a printer
  • 2 general connectors (joysticks, mouse, paddle controllers, ...)
  • 2 cartridge slots
  • the Cursors keys have a socket for a small 'stick joystick' - which mechanically operates the cursor keys - when not in use the joystick can be clipped in a special storage hole under the MSX


When keeping the Y and P keys pressed during boot, you will get a scrolling list of the development team followed by a digitized voice saying "It's a Sony!".

External links