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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