Philips NMS 8220
This page was last modified 14:57, 30 June 2021 by Mars2000you. Based on work by Gdx and FiXato 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 an MSX2 with 64kB RAM (not 192kB as indicated on the machine and the box by adding the VRAM). That similarity probably explains why some people think it was also sold under the name VG-8220, though 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 (Several clues suggest that mainboard is designed by NEC and manufactured by Kyocera)
Model NMS 8220
Year 1987
Region Belgium, France, the Netherlands and Spain
Launch 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
Keyboard layout (NMS 8220/00) QWERTY - (NMS 8220/16) QWERTY with a "ñ" key
Extras Reset button, firmware (Designer)
Emulation ROMs dumped and emulated for the /00 version. ROM dumps needed for the /16 version. See this thread for details

Firmware

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

The MSX Designer ROM can simply be removed from its socket to prevent it starting automatically if the function provided is not wanted.

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

Note that this application was also released on disk in 1986, under the reference Philips NMS 8927/23.

Pictures

Computer

Philips NMS 8220 with cables and manuals
Philips NMS 8220/00
Philips NMS 8220/16 (Spain)
Philips NMS 8220/00 label
Philips NMS 8220/16 label
NMS 8220 International box
Philips NMS 8220 French box
Philips NMS 8220 back connectors
Philips NMS 8220/00 PCB
Philips NMS 8220/00 PCB
with MSX Designer rom removed
NMS 8220 general connectors

Firmware

MSX Designer
MSX Designer
MSX Designer

Specifications

The NMS 8220 is an 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 MSX Designer
Page 0000h~3FFFh Sub-ROM
  • MSX 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 additional RAM chips of the same type (41464) on top of the existing chips. All pins need to be soldered one over the other except for pin 16. Then link the two pin 16's from the new chips together and to pin 35 of the M60003A chip. In addition, move the J2 jumper to J3 (besides the system ROM) to get the message "128Kb RAM" on the screen during the boot of the NMS 8220. (source)

Schematic

External Links