Yamaha SX-100
This page was last modified 01:40, 25 April 2019 by Gdx. Based on work by Grauw and Piter Punk and others.

Contents

Description

The SX-100 is a small MSX computer designed for gamers. It has a single cartridge port which is placed on the right side. This model was sold in black (SX-100 DB), white or dark blue.

It was aimed at the Japanese market and features a Japanese keyboard.

The same model was also sold in Japan as the Victor HC-30 in black or red.

Brand Yamaha
Type SX-100
Year 1985
Region Japan
Original price ¥36,800
RAM 32kB (in slot 0)
VRAM 16kB
Media MSX cartridge slot
Video Yamaha YM2220 (Texas Instruments TMS9918 compatible)
Audio PSG (YM2149 integrated in MSX-Engine S3527)
Chipset Yamaha S3527
Extras

Pictures

Yamaha SX-100 DB
Yamaha SX-100 DB back
Yamaha SX-100 underside
Yamaha SX-100 DB box, computer, power supply and manual
Yamaha SX-100 manual
Yamaha SX-100 white
Yamaha SX-100 blue

Specifications

The SX-100 is a MSX1 with a Z80A from Sharp (LH0080A), a Yamaha YM2220 VDP and a Yamaha S3527 MSX-Engine.

The power supply (9V, + at center) is external.

Yamaha also produced a slot expander for this computer, called the SX-101 Expansion box (official price: ¥26,800), designed to be placed underneath the monitor.

Slot Map without SX-101

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

Slot Map with SX-101

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 RAM Cartridge
Slot 1
Cartrige
Slot 2
Module
Slot
Page 8000h~BFFFh
Page 4000h~7FFFh Main-ROM
Page 0000h~3FFFh

Connections