Victor HC-7
This page was last modified 20:38, 27 July 2022 by Mars2000you. Based on work by Sdsnatcher73 and Rderooy and others.




The Victor HC-7 is the first original computer created by JVC (Japan Victor Company).

It has superimposing features that are especially useful if you use this computer in combination with the IF-7900 VHD interface and a VHD (Video High Density) player. Actually, the HC-A602S module is built-in in the HC-7 computer.

The HC-7 was aimed at the Japanese market and features a Japanese keyboard. It is available in black.

This model has been localised for the European market, but without the superimposing features and the ROM firmware - see JVC HC-7E and HC-7GB.

Brand Victor
Model HC-7
Year 1985
Region Japan
Launch price ¥84,800
RAM 64kB (in slot 2)
Media MSX cartridges
Video Texas Instruments TMS9928A
Audio PSG (AY-3-8910A)
Chipset none (separate IC's)
Keyboard layout QWERTY/JP50on
Extras reset button, superimposer, balance slider to adjust the superimposing, Victor BASIC, firmware (Tiny Joygraph - Printer Select for Hard Copy - Monitor)
Emulation ROMs dumped and emulated except for superimpose functions


The built-in firmware is automatically launched when booting the computer.

It includes 5 options:

  • Access to MSX-BASIC
  • Tiny Joygraph (a simple graphic editor that supports superimposing)
  • Printer Select for hard copy
  • Monitor
  • Demo that can also automatically start after a few time if you stay on the menu.

It also adds extra instructions - see Victor BASIC.

From MSX-BASIC, you can especially

  • launch the Printer Select screen with _HCMEN
  • make a hard copy of text or graphic screen with _HCOPY1, _HCOPY2, _HCOPY3 or _HCOPY4 (print modes corresponding to the Printer Select screen)
  • launch the monitor with _MON (when it is enabled)
  • launch a short demo of the monitor with _MNDEM (when the monitor is enabled).
  • enable/disable the monitor with _CALLON / _CALLOFF
  • enable/disable the superimposing features with _SUPERON / _SUPEROFF



Victor HC-7
Victor HC-7 box and content
Victor HC-7 box
Victor HC-7 left side
Victor HC-7 back
Victor HC-7 right side
Victor HC-7 underside
Victor HC-7 back (close-up)
Victor HC-7 label
Victor HC-7 keyboard (close-up)


Victor HC-7 - Menu
Victor HC-7 Tiny Joygraph
Victor HC-7 Tiny Joygraph menu
Victor HC-7 - Printer Select
Victor HC-7 - Hard Copy (demo)
Victor HC-7 - Monitor


The HC-7 is an MSX1 with a Z80A processor from Sharp (LH0080A) at 3.58 MHz and superimposing capacities.

Slot Map

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


External links