Victor HC-7
This page was last modified 23:02, 25 February 2020 by Mars2000you. Based on work by Rderooy and Gdx.




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.

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
Type HC-7
Year 1985
Region Japan
Original 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)
Extras firmware (Tiny Joygraph - Printer Select - Monitor), reset button, superimposer
Emulation ROM dump needed. See this thread for details


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 and a demo that can also start after a few time if you stay on the menu.



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 close-up
Victor HC-7 underside
Victor HC-7 label


Victor HC-7 firmware - Menu
Victor HC-7 firmware - Tiny Joygraph
Victor HC-7 firmware - Hard Copy (demo)
Victor HC-7 firmware - Monitor


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

Slot Map

Help needed
The below slot-map is an assumption, it needs to be checked on a real machine.
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