Phonola VG-8235
This page was last modified 10:49, 11 March 2020 by Mars2000you. Based on work by Rderooy and Gdx.

Contents

Description

Computer

The Phonola VG-8235 is the Philips VG-8235/00 rebranded for the Italian market. It has a single sided disk drive and 128kB RAM (not 256kB as indicated on the machine and the box by adding the VRAM).

Brand Phonola (Several clues suggest that mainboard is designed by NEC and manufactured by Kyocera)
Type VG-8235
Year 1986
Region Italy
Original price
RAM 128kB in slot 3-2
VRAM 128kB
Media MSX cartridges, 1DD floppy disks
Video Yamaha V9938
Audio PSG (custom chip integrated in MSX-Engine S3527)
Chipset Yamaha S3527
Extras 360kB 3,5" floppy disk drive, external disk drive connector, reset button, firmware on disks (MSX-DOS 1 - MSX Home Office - MSX Designer)
Emulation emulated as Philips VG-8235 - ROM dump needed probably only for checking. See this thread for details

Provided Software

The computer was provided with two disks:

  • the first disk contains MSX-DOS1 with a text based menu driven interface
  • the second disk contains both MSX Home Office (Address Book + Word Processor) and MSX Designer, a drawing program in screen 8, which includes a demo mode: click 2 times on the last left icon to launch it, press CTRL+STOP to quit it.

Pictures

Computer

Phonola VG-8235
Phonola VG-8235 detail
Phonola VG-8235 right side
Phonola VG-8235 back

Firmware

Boot Sequence 2.0

VG-8235/00 Boot logo
VG-8235/00 MSX Basic 2.0

Provided Software

Note: probably with menus in Italian, except for MSX Desiger (to be checked)

MSX-DOS

Loading doshlp

MSX Home Office

(...)

MSX Designer

MSX Designer
MSX Designer
MSX Designer

Specifications

The VG-8235 is a MSX2 with a Z80 from Zilog (Z8400APS) and the MSX-Engine S3527 from Yamaha.

The RAM is in slot 3-2. First cartridge slot is in front, second cartridge slot is in back.

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
128kB
Memory
Mapper
Page 8000h~BFFFh Mirror
Page 4000h~7FFFh Main-ROM Disk ROM
Page 0000h~3FFFh Sub-ROM
  • The Disk ROM is a 16kB ROM - 4000h-7FFFh, which is mirrored to 8000h-BFFFh

Connections