MACHINE REFERENCE

Philips Videopac G7000

The Philips Videopac G7000, Europe’s version of the Odyssey 2, went on sale in December 1978 with 192 bytes of RAM, a flat QWERTY membrane keyboard and two joysticks wired permanently to the case. After about 7,500 units Philips recalled it over a faulty power plug, and it came back in the summer of 1979 at £150.

Why it matters

The G7000 was Philips’ European version of the Magnavox Odyssey 2, and Wikipedia records that it did considerably better in Europe than its twin managed in North America. Inside were an Intel 8048 with 1 KB of ROM and an Intel 8245 video chip that drew four sprites at 160×200, in eight colours with two brightness levels each. Around 2 million Odyssey 2 and Videopac machines were sold worldwide. The line’s last act was the 1983 Videopac+ G7400, which added Thomson video chips and still ran G7000 cartridges.

What to check before you buy

  • Video output: the console only puts out RF, so check what you are getting, whether an RF lead, a modulator or a composite modification already done to the board.
  • The cartridge slot: push a cartridge in with the power off and look at the pins for oxidation. In one documented repair they had corroded badly enough to snap.
  • The joysticks: they are wired to the console, so worn fire buttons, cracked membranes or rust on the lever mean a repair, not a swap.
  • The keyboard: press every membrane key; the flat surface hides wear that a normal keyboard would show.
  • What is in the box: ask for the power adapter and at least one tested game. A console with a game has been seen selling around £48, and untested bare units go for much less.
  • The mains lead and plug: the early European recall was over a power plug, so inspect the plug and cable for damage before you switch on.
Philips Videopac G7000

Photo: Rama, Wikimedia Commons (CeCILL)

Released

1978

RAM

192 bytes in total: 64 bytes inside the 8048 and 128 bytes external (held in the video chip, per oldcomputer.info)

CPU

Intel 8048 8-bit microcontroller. Wikipedia gives 5.91 MHz for the PAL version (5.37 MHz NTSC); one hobbyist source gives 1.79 MHz, which is likely a divided clock. The crystal figure is best supported

Launch price

£150 in the UK when sales resumed in summer 1979 (Wikipedia). The US Odyssey 2 launched at US$179.95. Other European launch prices: Unknown

Manufacturer

Philips (the European sibling of the Magnavox Odyssey 2; Magnavox was Philips-owned by then)

Form factor

Console with a built-in flat QWERTY membrane keyboard, and two joysticks permanently attached by cable

CPU

Intel 8048 8-bit microcontroller. Wikipedia gives 5.91 MHz for the PAL version (5.37 MHz NTSC); one hobbyist source gives 1.79 MHz, which is likely a divided clock. The crystal figure is best supported

Chipset

Intel 8048 CPU plus an Intel 8245 Video Display Controller (PAL; the NTSC Odyssey 2 uses the 8244)

RAM

192 bytes in total: 64 bytes inside the 8048 and 128 bytes external (held in the video chip, per oldcomputer.info)

ROM

1 KB (1,024 bytes) BIOS/system ROM, internal to the 8048

Graphics

Intel 8245 VDC: 160×200 resolution, 8 base colours plus a half-brightness variant giving 16 in total, four single-colour 8×8 sprites and 12 built-in character shapes. RF output only from the factory

Audio

Mono, from the 8244/8245 chip: a 24-bit shift register sound generator with noise capability

Storage

ROM cartridges, typically 2-8 KB, which must be inserted before power-on. The built-in membrane keyboard is used for game menus and some programs

Ports

Cartridge slot, two hard-wired 8-way joysticks with a single fire button each, and RF video/audio output. Composite signals are present on the mainboard but not brought out. Add-ons included The Voice speech module and the C7010 Chess Module (Europe only)

OS

None as such. The 1 KB internal ROM is a BIOS/menu routine that starts the cartridge

PSU

External mains adapter. The mainboard runs on 5 V DC connected directly, per one repair teardown. Exact adapter rating not confirmed: Unknown

Units sold

Around 2 million for the Odyssey 2 and Videopac family worldwide (Wikipedia). A separate Videopac-only figure is Unknown. The Videopac did considerably better in Europe than the Odyssey 2 did in North America

Successors

Philips Videopac+ G7400 (1983, Europe only, limited quantities), adding Thomson EF9340/EF9341 video chips and better backgrounds and sprites while still playing G7000 games. A planned North American version never launched. Odyssey production ended by March 1984

  • Oxidised cartridge socket pins
    In one documented repair the cartridge socket pins were eaten by oxide and seven snapped off while the socket was being desoldered; replacing all three sockets on the mainboard restored video. Cleaning the cartridge and console connectors is the first thing to try when a cartridge will not start.
  • Perished joystick fire buttons and membranes
    The same repair found deteriorated fire buttons, a badly damaged membrane and a rusted lever on the hard-wired joysticks. The fix used conductive pen for the contact tracks, vinegar for the rust and 3D-printed replacement buttons.
  • Faulty power plug on early European units
    Wikipedia states that after about 7,500 units the Videopac was recalled over a faulty power plug (some summaries say faulty power components). Sales resumed in summer 1979.
  • 1978 Odyssey 2 launches in North America in September at US$179.95
  • 1978 Philips releases the Videopac G7000 in Europe in December
  • 1979 Recall after about 7,500 units over a faulty power plug; sales resume in summer at £150 in the UK
  • 1983 Philips releases the Videopac+ G7400 in Europe
  • 1984 The Odyssey line ends in March