Sanyo MPC-3
This page was last modified 16:42, 14 February 2021 by Mars2000you. Based on work by Rderooy and Gdx.



The Sanyo MPC-3, a.k.a Wavy3, is a rare computer. It has only 16 kB RAM and there is no printer port, but it comes with 3 cartridges slots with switches that allows to enable/disable each slot independently (switches A, B,C) or all at the same time (switch "FREE").

It was aimed at the Japanese market. The power supply is internal.

This machine has been localised for the German market with more RAM and a printer port, but without the 3rd cartridge slot (see MPC-64).

Brand Sanyo
Model MPC-3
Year 02-1985
Region Japan
Launch price ¥46,800
RAM 16kB in slot 0
Media MSX cartridges
Video Texas Instruments TMS9118NL
Audio PSG (AY-3-8910)
Chipset none (separate IC's)
Keyboard layout QWERTY/JP50on
Extras Reset button, three cartridge slots with selector buttons
Emulation ROM dumped and emulated, with exception of the slot selector buttons.


Sanyo MPC-3
Sanyo MPC-3 detail
Sanyo MPC-3
Sanyo MPC-3 detail
Sanyo MPC-3 back
Sanyo MPC-3 right side
Sanyo MPC-3 box and content
Sanyo MPC-3 box
Sanyo MPC-3 manuals
Sanyo MPC-3 label
Sanyo MPC-3 inside
Sanyo MPC-3 mainboard
Sanyo MPC-3 board for cartridge slots
Sanyo MPC-3 board for cartridge slots (underside)
Sanyo MPC-3 mainboard (underside)


The MPC-3 is a MSX1 with with a Z80A from NEC (D780C-1).

Slot Map

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


External links