Contents |
Description
The Sanyo PHC-23J, a.k.a Wavy23 is a MSX2 computer released by Sanyo, and aimed at the Japanese market. It is the sequel to the PHC-23. The difference seems to be that the PHC-23J has a JIS compliant keyboard, unlike the PHC-23.
Three revisions of the Wavy23 were produced. In the last revision, Sanyo released a blue variant besides the original grey color. In all revisions, the GR reference is displayed on the box, but not on the label.
Note: At this time Sanyo was changing its logo. Some products have both the old logo and the new logo when you compare the computer, the box, the label and the manuals.
| Revision | Product | Released | Keyboard | Color | MSX-Engine | Battery |
|---|---|---|---|---|---|---|
| 1 | Sanyo PHC-23 | 1986 | JP50on | Grey | Yamaha S3527 | Internal re-chargable |
| 2 | Sanyo PHC-23J | 1987 | JIS | Grey | Yamaha S3527 | Internal re-chargable |
| 3 | Sanyo PHC-23J(B) | 1987 | JIS | Blue | Yamaha S1985 | two AA batteries |
| 3 | Sanyo PHC-23J(GR) | 1987 | JIS | Grey | Yamaha S1985 | two AA batteries |
The PHC-23J has been localised for the Russian market with more RAM (see MPC-2300).
| Brand | Sanyo |
| Model | PHC-23J / PHC-23J(B) / PHC-23(GR) |
| Year | 1987 |
| Region | Japan |
| Launch price | ¥32,800 |
| RAM | 64kB (in slot 3-2) |
| VRAM | 128kB |
| Media | MSX cartridges |
| Video | Yamaha V9938 |
| Audio | PSG (YM2149 integrated in MSX-Engine S1985 or S3527) |
| Chipset | Yamaha S1985 or Yamaha S3527 |
| Keyboard layout | QWERTY/JIS + numeric keypad |
| Extras | |
| Emulation | ROMs dumped and emulated. |
Pictures
Specifications
The PHC-23J is a MSX2 with a Z80A from NEC (D780C-1) and an MSX-Engine S1985 or S3527 from Yamaha.
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 | 64kB RAM | |||||||
| Page 8000h~BFFFh | ||||||||||
| Page 4000h~7FFFh | Main-ROM | |||||||||
| Page 0000h~3FFFh | Sub-ROM |
Connections
- RF output
- RGB output
- Analog sound & Composite video
- Data Recorder connector
- Centronics compatible Parallel port for a printer
- 2 general connectors (Joysticks, Mouse, Paddle controllers, etc)
- 2 cartridge slots