Philips NMS 8220
This page was last modified 00:44, 13 April 2019 by Rderooy. Based on work by Gdx and Mars2000you and others.

Contents

Description

Computer

The Philips NMS 8220 is an MSX2 computer released by the Dutch company Philips. The abbreviation NMS stands for New Media Systems. This machine is often used in combination with a data recorder, such as the Philips NMS-1515 Data Recorder.

Its design is very similar to the MSX1 VG-8020, but it's a MSX2 with 64kB RAM (not 192kB as indicated on the machine and the box by adding the VRAM). Probably that similarity explains that some people think it was also sold under the name VG-8220, but there is no proof of that.

Two models of this machine were produced, both have a QWERTY keyboard:

  • NMS 8220/00 Version sold mainly in Belgium, France and The Netherlands
  • NMS 8220/16 Version sold in Spain (with ñ key)
Brand Philips (Manufacturer: Kyocera)
Type NMS 8220
Year 1987
Region Belgium, France, the Netherlands and Spain
Original price NL: ƒ749
RAM 64kB in slot 3-2
VRAM 128kB
Media MSX cartridges
Video Yamaha V9938
Audio PSG (YM2149 integrated in MSX-Engine S3527)
Chipset Yamaha S3527
Extras Reset button, firmware (Designer)

Firmware

This compact computer has a built-in drawing program in screen 8, called 'Designer' that boots up automatically, but can be skipped by holding the ESC key. After a first release in 1985, a bug in this firmware has been fixed for the second release of this machine.

This firmware includes a demo mode: click 2 times on the last icon to launch it, press CTRL+STOP to quit it.

Pictures

Computer

Philips NMS 8220/00
Philips NMS 8220/00 label
Philips NMS 8220 International box
Philips NMS 8220/16 (Spain)
Philips NMS 8220/16 label
Philips NMS 8220 French box
Philips NMS 8220 back
Philips NMS 8220/00 PCB
Philips NMS 8220/00 PCB (with Designer rom removed)

Firmware

Philips Designer
Philips Designer
Philips Designer

Specifications

The NMS 8220 is a MSX2 with a Z80 from Zilog (Z8400APS) and the MSX-Engine S3527 from Yamaha.

The RAM is in slot 3-2. The cartridge slots are in front, hidden under a panel.

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

Connections

Upgrades and fixes

RAM upgrade

The RAM can be upgraded to 128kB by soldering two same extra RAM (one on each RAM from mainboard). All pins need to be soldered one over the other except the pin 16. Then link the two pins 16 together and to pin 35 of the M60003A chip. Also, move the jumper J2 to J3 (beside the system ROM) to get the message "128Kb RAM" on the screen during the boot of NMS 8220. (source)

Schematic

External Links