Sanyo MPC-10mkII
This page was last modified 23:18, 13 April 2019 by Rderooy. Based on work by Gdx and Mars2000you.



The Sanyo MPC-10mlII, a.k.a Wavy10mkII, is a more colored and slightly improved version of the MPC-10, the first MSX computer released by Sanyo. It has only one cartridge slot, but was sold with a lightpen, for which a hole is provided on top.

The machine has an integrated lightpen interface with firmware (Lightpen Graphics) and an expansion bus: it can be used as second cartridge slot with an adapter.

Size: 385(W)×62(H)×242(L)mm
Weight: 2.3kg

Sanyo released also the MPC-X, a Graphic Expander Unit which an extra VDP that adds 4 bitmap modes with 16, 4 or 2 colors on a palette of 512, high-resolution, superimposing, still function and zooming and uses lightpen. This expander needs to be connected to the MEB-01 slot expander, itself connected to the expansion bus of the MPC-10mkII.

This computer was officially viewed as Videotex terminal when the Sanyo MPC-CAP1 Captain Unit was also bought and received an additional label MPC-S1, meaning that it was ready for this extra using.

Brand Sanyo
Type MPC-10mkII
Year 1984
Region Japan
Original price ¥75,800
RAM 32kB in slot 0
Media MSX cartridges
Video Texas Instruments TMS9918A
Audio PSG (AY-3-8910)
Chipset none (separate IC's)
Extras reset button, lightpen interface with firmware and Expander BASIC, hole for lightpen, lightpen ?MLP-10


Sanyo MPC-10mkII box and content
Sanyo MPC-10mkII
Sanyo MPC-10mkII back
Sanyo MPC-10mkII underside
Sanyo MPC-10mkII label
Sanyo MPC-10mkII right side
Sanyo MPC-10mkII manual
Sanyo MPC-10mkII rightside connectors


The MPC-10mkII is a MSX1 with with a Z80A from NEC (D780C-1).

The lightpen uses I/O ports 0B8h~0BBh.