Sony HB-701FD
This page was last modified 22:13, 23 May 2021 by Mars2000you. Based on work by Rderooy and Gdx.




The Sony HB-701FD is the first HitBit Computer equiped with a built-in floppy disk drive (see HBD-100). This machine was aimed at the Japanese market and available in black on front and pale gray.

The only difference between the HB-701FD and the HB-701 is the drive, which is build in the HB-701FD. Front and back of both machines are exactly the same, with only a little difference on the left front, corresponding to the location of the drive.

The machine has a separate keyboard without numeric keypad.

Brand Sony
Model HB-701FD
Year 1984-11
Region Japan
Launch price ¥148,000
RAM 64kB
Media MSX cartridges, 1DD floppy disks
Video Texas Instruments TMS9928ANL
Audio PSG (YM2149F)
Chipset none (separate IC's)
Keyboard layout QWERTY/JP50on
Extras 360kB 3,5" floppy disk drive, reset button, superimposer, volume control, brightness adjuster for superimposing, remote sensor, firmware HitBit Art, software on disk (HitBit Art with extra options)
Emulation ROM dump needed. See this thread for details. Also a dump of the provided floppy disk is required.


The built-in firmware HitBit Art is a graphic and title editor. This ROM version, inherited from the HB-701 machine and probably modified, is useless here.


The provided floppy disk contains a version of HitBit Art with extra options and disk support.

The menu presents 5 options:

  • Design (F2 for dynamic part - F1 to back for static part)
  • Telop (probably F2 for Sprite option)
  • Story (probably F2 for Action option)
  • File (with choice between Disk and Tape)



Sony HB-701FD
Sony HB-701FD front
Sony HB-701FD back
Sony HB-701FD keyboard
Sony HB-701FD inside
Sony HB-701FD mainboard
Sony HB-701FD box
Sony HB-701FD box back
Sony HB-701FD drive PCB
Sony HB-701FD manuals and floppy disk
Sony HB-701FD cables
Sony HB-701FD floppy disk


HitBit Art menu
HitBit Art - Design (F1 - static)
HitBit Art - Design (F2 - dynamic)
HitBit Art - Telop
HitBit Art - Sprite
HitBit Art - Story
HitBit Art - Action


The HB-701FD is a MSX1 with a Z80A from Sharp (LH0080A) or NEC (uPD780C-1). The floppy disk controller is the WD2793. The controller installed in the FDD is MB8847 (NMOS 4-bit single-chip microprocessor). The installed drive is the Sony MFD-33V (1DD), also used in the external FDD unit HBD-50.

This computer has integrated capabilities for superimposing. A wireless joystick (JS-75) can be used via the remote sensor.

Unit size: 355 (w) x 325 (l) x 79 (h) mm


  • RF output
  • RGB output (not SCART)
  • Stereo analog sound & Composite video output
  • Stereo analog sound & Composite video input
  • 2 x RCA connectors for S video signal control
  • Data Recorder connector
  • Centronics compatible Parallel port for a printer
  • 2 general connectors (Joysticks, Mouse, Paddle controlers, etc)
  • 2 cartridge slots
  • Power socket for the monitor
  • Power plug for main power supply (JIS C 8303 class, AC 100V +/-10% 50/60Hz)

External links