Madscient ChibiOto
This page was last modified 12:52, 10 June 2022 by Gdx. Based on work by Mars2000you.


ChibiOto is an Japanese upgrade for MSX-AUDIO made by Madscient. This is a small board to be welded on the Y8950 chip to expand the Sample RAM for the ADPCM unit to 256kB.

This upgrade is for the Panasonic FS-CA1 and Toshiba HX-MU900 cartridges, and also the Sound orchestra board for PC-98 computer.

This board can also be used for the Philips NMS 1205 cartridge if you can disable the internal Sample RAM as for the Panasonic FS-CA1.

Price: ¥2,500


ChibiOto front
ChibiOto bottom