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Philips CDI 670 General Maintenance

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Philips CD-i Mono IV main panel component side (CDI 220-80 service manual)
Component side of the Mono IV main panel (CDI 220/80 service manual), the board family used in the 670

No strip-down of a Philips CDI 670 has been published, and no service manual for it is listed at ICDIA.[1] It shares its cabinet drawing and user manual with the CDI 660, its 20PS307 power supply with the 660 and 615, and the large Mono IV main board with the 660, 615 and 740.[2][3][4] The step-by-step strip-down of a 660, with the NVRAM socket work and the 50/60 Hz switch, is on the Philips CDI 660 General Maintenance page. The notes below cover what to check on a 670 before and after following it.

Safety

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  • Unplug the player and leave the power switch on for a while before opening it, so that the filter capacitors in the supply can discharge.[3]
  • The 20PS307 is an earthed (Class 1) supply with an IEC C14 inlet; use an earthed mains lead.[3]
  • Do not touch the inner pins of the rear connectors, and never make or change connections with the power on.[2]

Before opening a 670

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  • Back up the NVRAM over a null-modem cable. On a 670 it may hold the supplier's start-up message (a ".keycontrol" file) as well as the settings, and pulling the SRAM from its socket wipes everything.[4][5] The socket's own cells are dealt with on the 660 page; battery damage in general is covered on Battery Explosion, Capacitor or Corrosion Damage.
  • Note whether protected mode or a lock mode is active: a missing OPEN icon or options icon, or a "no entry" sign on some discs, comes from a setting and is not a fault.[2]
  • Disconnect anything on the parallel port, such as a ZIP drive, and on the RS-232 ports.[2]

Differences to watch for

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  • retrostuff.org found a 22ER9956/40 mini DVC in a plastic frame in its 660. The cartridge fitted to the 670 has not been documented, so check its mounting before pulling on it.[6]
  • The manual marks the AT keyboard port, the extension cover plate, the Euroconnector and the Y/C socket as fitted to some models only; follow the cables on your own player before unplugging them.[2]
  • ICDIA says the 670 can control a professional DVD player.[7] How it connects to the DVD player is not described in the hosted manual, so record any extra cables or boards you find.[2]

Fuses

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The 20PS307 supply has a T1.0A mains fuse (1101) and two MP315 fuses (1200 and 1201) on the +5 V side; the main board's −5 V fuse 3255 (MP100) is in grid square F1, next to the supply connector.[3][8] The full fuse table and the supply pinout are on the Philips CDI 660 General Maintenance page.

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References

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  1. ↑ CD-i Service Manuals, The New International CD-i Association—link(accessed 2026-10-20) Rows CDI 210, CDI 220 and CDI 470: the Mono-IV manuals, whose diagrams are shared by the CDI 210, 220, 470, 615, 740 and the B&O players.
  2. ↑ 2.0 2.1 2.2 2.3 2.4 2.5 Philips Interactive Media Systems, CDI660/CDI670 User manual, 3104 125 2229.1, © 1998: front and rear of the player (PDF p. 2); interfaces and parallel port (PDF p. 7); options and tools screens (PDF p. 8); protected mode, lock modes and group working (PDF p. 10); file download (PDF p. 11); "Before requesting service" (PDF p. 11, printed p. 19); specifications (PDF p. 19); accessories (PDF p. 20). Hosted here as File:Philips CDI 660 and CDI 670 User Manual.pdf.
  3. ↑ 3.0 3.1 3.2 3.3 Philips CD-i Power Supply Units, retrostuff.org, 29 September 2024, revised 10 July 2026—link(accessed 2026-10-20) Sections "20PS307" and "20PS308", and the general warning on filter capacitors.
  4. ↑ 4.0 4.1 Modifications for Philips CD-i Players, retrostuff.org, 12 January 2020, revised 2024—link(accessed 2026-10-20) Sections "Mono IV (large players)", "Brooktree BT9106 & BT9107 / BT9108" and "ROM/Software modifications".
  5. ↑ Philips CDI660 Mono IV NVRAM and 60 Hz Modification, retrostuff.org, 14 October 2019—link(accessed 2026-10-20) Owner's strip-down of a CDI 660/00 to the Mono IV board, the 32 KB NVRAM socket and the 50/60 Hz switch.
  6. ↑ Philips CDI660 Service Shell, retrostuff.org, 14 March 2021—link(accessed 2026-10-20) Why the CDI 660 resets with the test plug fitted, the missing sv module, the 22ER9956/40 mini DVC and its ROM.
  7. ↑ Philips professional and authoring CD-i players, The New International CD-i Association—link(accessed 2026-10-20) Entries "Philips CDI 615", "Philips CDI 660" and "Philips CDI 670".
  8. ↑ Philips CD-i Mono III / IV Fuses, retrostuff.org, 29 November 2021, revised 1 October 2024—link(accessed 2026-10-20) The −5 V fuse 3255 and the resettable fuse 3277 on Mono IV boards, the symptoms of a blown −5 V fuse and where to measure.


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