Contents |
Description
The Yamaha computers were specifically targeted at music and sound production, and as such were regarded by many as non-standard MSX machines. However, they are in fact standard MSX computers and can be used as such.
The YIS-604/128 is the same computer as the CX7M/128, but was always sold without any SFG module. However, the mini-slot contains a mini-cartridge "Beginner's Lesson".
It was aimed at the Japanese market.
The YIS-604/128 has been localised
- for the Russian market - see YIS-503IIIR - without the mini-slot
- for the Arabic countries - see Sakhr AX-350 and Sakhr AX-350II - without the mini-slot and the module slot
| Brand | Yamaha |
| Model | YIS-604/128 |
| Year | 1985 |
| Region | Japan |
| Launch price | ¥99,800 |
| RAM | 128kB (in slot 3-2) |
| VRAM | 128kB |
| Media | MSX cartridges, side slot modules |
| Video | Yamaha V9938 |
| Audio | PSG (YM2149 integrated in MSX-Engine S3527) |
| Chipset | Yamaha S3527 |
| Keyboard layout | QWERTY/JP50on |
| Extras | Reset button, 60 pin module port, mini cartridge port, Beginner's Lesson mini-cartridge |
| Emulation | ROMs dumped and emulated with exception of the Beginner's Lesson mini-cartridge |
Pictures
Specifications
The YIS-604/128 is a MSX2 with a Z80A from Sharp (LH0080A) and an MSX-Engine S3527 from Yamaha.
This model can be easily upgraded internally because RAM and VRAM are on separate boards with a connector, you just need to change the corresponding board.
Some machines don't have a separate VRAM board but you can change the VRAM on the mainboard.
The mini slot allows to add software.
Slot Map
| Slot 0 | Slot 1 | Slot 2 | Slot 3-0 | Slot 3-1 | Slot 3-2 | Slot 3-3 | ||||
|---|---|---|---|---|---|---|---|---|---|---|
| Page C000h~FFFFh | Cartridge Slot 1 | Cartridge Slot 2 | Mini Cartridge Slot | 128kB Memory Mapper | Module Slot | |||||
| Page 8000h~BFFFh | ||||||||||
| Page 4000h~7FFFh | Main-ROM | |||||||||
| Page 0000h~3FFFh | Sub-ROM |
- By default the Mini-Cartridge slot contains the Beginner's Lesson cartridge
Connections
- RGB output
- RF output
- Analog sound & Composite video
- Data Recorder connector
- Centronics compatible Parallel port for a printer
- 2 general connectors (Joysticks, Mice, Paddle controllers, etc)
- 2 cartridge slots
- 1 module slot (left side, 60 pin connector)
- 1 mini cartridge slot
Links
- http://www.cx5m.net/ (Now the site is broken only some files still online), Archived version (2019 version, some files are missing), Another mirror (file-hunter.com)