Contents |
Description
The ML-G30 Model 1 is a very professional MSX2 computer with a separate keyboard and many connectors. It has been released in 2 different colors (white and black). It was first shown to the public at the Japan Electronics Show '85 (Oct 17-22).
This machine has only 1 built-in disk drive, but there are locations to add a second disk drive and an internal RS-232C interface (that will occupy one of the internal slots).
The back of the computer has a RS-232C switch that is inoperable as long as the interface is not added. The panel with the sound and video connectors will be different if you install the ML-35AV Audio-Video interface with superimposing, digitizing and Telop capacities.
The following upgrade options were available
| Product | Price | Description |
|---|---|---|
| Mitsubishi ML-21RS | ¥16,800 | RS-232C serial interface board |
| Mitsubishi ML-30FP | ¥39,800 | 720kB 3.5" internal disk drive |
| Mitsubishi ML-30FPW | ¥39,800 | 720kB 3.5" internal disk drive (white) |
| Mitsubishi ML-35AV | ¥20,000 | Audio/Video interface board |
| Brand | Mitsubishi |
| Type | ML-G30 Model 1 |
| Year | 1985-08 |
| Region | Japan |
| Original price | ¥168,000 |
| RAM | 128kB in slot 3-2 |
| VRAM | 128kB |
| Media | MSX cartridges, 2DD floppy disks |
| Video | Yamaha V9938 |
| Audio | PSG (YM2149 integrated in MSX-Engine S1985) |
| Chipset | Yamaha S1985 |
| Keyboard layout | QWERTY/JIS |
| Extras | One 720kB 3,5" floppy disk drive (the second was sold separately), external disk drive connector, third and fourth cartridge slots, Reset button, Kanji-ROM level 1, (optional) RS-232C interface in the fourth cartridge slot + switch, sold with disk Melbrains Note (Word Processor + Calc + Graphic Editor + Communication Program) |
| Emulation | emulated in blueMSX (except the extra cartridge slots) - ROM dump needed for openMSX. See this thread for details |
Pictures
Specifications
The ML-G30 Model 1 is a MSX2 with four cartridge slots (1 external in front and 3 internal in back), a Z80A from NEC (D780C-1) and an MSX-Engine S1985 from Yamaha.
About the 3 internal slots:
- Back side top slot corresponds to slot 3.3 and is reserved for the optional RS-232C interface
- The back side slot at the middle corresponds to slot 3.1.
- The lowest back slot is slot 2.
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 | Lowest back slot | Middle back slot | 128kB Memory Mapper | Top back slot | |||||
| Page 8000h~BFFFh | ||||||||||
| Page 4000h~7FFFh | Main-ROM | Disk ROM | ||||||||
| Page 0000h~3FFFh | Sub-ROM |
Connections
- RF output (removed if you install the ML-35AV interface)
- RGB output
- Analog sound & Composite video (replaced if you install the ML-35AV interface)
- Keyboard connector
- Data Recorder connector
- External disk drive connector
- Expansion unit connector
- Centronics compatible Parallel port for a printer
- 2 general connectors (Joysticks, Mouse, Paddle controlers, etc)
- 4 cartridge slots (1 external, 3 internal)
- Power plug for main power supply (JIS C 8303 class, AC 100V +/-10% 50/60Hz)
- Power outlet for monitor (AC 100V)
Links
- Infos about ML-G30 (Japanese) - archived version
- ML-G30 Keyboard Schematics Rev.00