Sony HB-T7
This page was last modified 04:03, 2 January 2018 by Mars2000you. Based on work by Rderooy and Gdx.



The HB-T7 is a computer based on the HB-F5 with addition of a modem and sold as Communication Terminal. It's one of the two computers released by Sony in the communication sector, the other one is the HB-T600.

It has a QWERTY Japanese keyboard with ANSI layout for kanas characters. The included firmware is different from the HB-F5. It can be launched with CALL TELCOM or _TELCOM.

This machine was aimed at the Japanese market.

Official price: ¥59,800

Brand Sony
Type HB-T7
Year 1986
RAM 64kB in slot 3-3
VRAM 128kB
Media MSX cartridges
Video Yamaha V9938
Audio PSG (YM2149 integrated in MSX-Engine S1985)
Chipset Yamaha S1985
Extras Telcom firmware, Modem, MSX-Modem BASIC, Kanji-ROM level 1


Sony HB-T7
Sony HB-T7 back
Sony HB-T7 label
Sony HB-T7 detail of front
Sony HB-T7 right side
Sony HB-T7 box


The HB-T7 is a MSX2 with two cartridge slots, a Z80A from Sharp (LH0080A) and an MSX-Engine S1985 from Yamaha. The modem speed is 300/1200bps and has automatic features (dial and log in).


  • RF output (RCA)
  • Analog sound & Composite video (RCA)
  • RGB output (8-pin DIN)
  • Two RJ11 modular connectors for modem (line in and telephone out)
  • Tape recorder connector
  • Centronics compatible Parallel port for a printer
  • 2 general connectors (joysticks, mouse, paddle controllers, ...)
  • 2 cartridge slots
  • AC power socket