Yamaha CX7/128
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 CX7/128 was aimed at the Japanese market and features a Japanese keyboard. It is almost the same as the CX-7M/128 but was sold without SFG-05 module and without a FM Voicing Program II cartridge (YRM-502) inserted in the mini slot.
| Brand | Yamaha |
| Model | CX7/128 |
| 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 |
| Emulation | ROMs dumped and emulated |
Pictures
Computer
Specifications
The CX7/128 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.
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 |
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)