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Philips CDI 205

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Philips CDI 205
Philips CDI 205 (service manual cover)
The CDI 205 as drawn on the cover of Philips's service manual
Specifications
ManufacturerPhilips
TypeCompact Disc Interactive (CD-i) player
Released1992 (United Kingdom)[1]
CPUPhilips SCC68070[2][3]
Memory1 MB DRAM in two banks of 512 KB; 8 KB battery-backed NVRAM (MK48T08B Timekeeper)[4]
StorageCD loader with a CDM-9 mechanism[5]
Display—
Sound—
ROM512 KB system ROM[4]
Ports / interfaceEuroconnector (SCART), composite video, S-video, stereo audio, headphones, input port 1 (front) and port 2 (rear), remote control input, extension socket for the 22ER9141 Digital Video cartridge[6]
Power220/240 V, 50–60 Hz; approx. 35 W[7]
Dimensions420 × 90 × 400 mm[7]
Weight7 kg[7]
OS / Firmware—
Model no.205/00, 205/05[8]

The Philips CDI 205 is one of Philips's first consumer Compact Disc Interactive (CD-i) players. ICDIA describes it as the European version of the Philips CDI 910, the first consumer CD-i player, and records that it was officially sold only in the United Kingdom during the European launch of the system in 1992, and never on the European mainland.[1] Inside it is built from separate panels around Philips's Mini MMC (Multi Media Controller) board, the same generation as the first version of the Philips CDI 220, the 220/00.[9][10] Philips's service manual for the 205/00 and 205/05 survives and is hosted here. It has circuit diagrams for every panel except the MMC board, which Philips replaced as a unit and shows only as a component layout.[5][11]

Versions and relatives

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Philips adds a version number after the type number on the type plate: /00 for continental Europe, /05 for the UK, /11 for Japan and /17 for the United States.[12]

CDI 205 and related players
Player Market Notes
CDI 205/00, 205/05 Europe, UK Covered by service manual 4822 725 24103; RGB on the Euroconnector for PAL and SECAM[8][7]
CDI 205/11 Japan Mini MMC (NTSC) board[9]
CDI 205/17T United States Sold by Tandy as the Memorex CDI-2200[10][9]
Philips CDI 910 United States The American version of the 205, launched in October 1991[10]

ICDIA's comparison table lists the 205/00 with the first-generation user shell, an RC5 infrared remote, 8 KB of NVRAM, the 22ER9141 Digital Video cartridge, the CDM 9 mechanism and the Mini MMC board, and gives the same entries for the 220/00.[10] retrostuff groups the 205/00 and 220/00 as the PAL Mini MMC, and the 205/11, the Memorex player and the 910/17P as a separate NTSC variant of the board.[9]

Hardware

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Philips CDI 910 interior (training manual figure 13)
The American CDI 910 with its covers off, from Philips's training manual. ICDIA describes the 205 as the same player for Europe.[1]

The service manual divides the player into numbered assemblies: the MMC panel (1001), the APU or audio processing panel (1002), the video encoder panel (1003), the CD panel (1004), the display panel (1005), the power supply panel (1006) and the headphone panel (1007).[13][3] The APU and encoder panels plug into the CD panel through two board connectors each.[13] The disc mechanism is a CDM-9 in a tray loader.[13][5]

Main parts named in the service manual
Function Part Panel
Main processor SCC68070 (7201) MMC[3]
System ROM One 4 Mbit ROM (512 KB) MMC[4]
NVRAM and clock SGS-Thomson MK48T08B Timekeeper MMC[4]
Slave processor, which runs port 1 68HC05 (7206) MMC[2][3]
Audio digital output circuit (ADOC) PCF3523 (7310) CD[14]
Bitstream DAC SAA7321 (7400) APU[15]
Volume attenuators AD7528 (7506, 7507) APU[15]
Video encoder Sony CXA1145P (7601) Encoder[16]
Display driver and display U3090MG (7151), 11MT64GK (7152) Display[17]

The two input ports are 8-pin mini-DIN sockets. Port 1 on the front is run by the slave processor at 1200 or 9600 baud; port 2 on the rear is the SCC68070's own UART, at 75 to 19,200 baud.[2] The rear panel also carries the aerial input and output with a channel selector on some versions, and the extension socket for the 22ER9141 Digital Video (full-motion video) module.[6]

The switch-mode power supply delivers +5.2 V, +12 V, −12 V, −8 V, +8 V and +30 V.[18] Philips states that every board can be repaired to component level except the MMC board, which is replaced as a unit, and that the CDM-9 is replaced as an assembly.[5]

Known faults

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  • The Timekeeper NVRAM holds its own battery. When it runs flat, settings and the clock are lost at power-off and the player can stop at a light blue screen or a "memory full" message.[19] See the maintenance guide.
  • A tray that will not open may be locked by the shop demonstration mode. A Philips service note bound into the manual explains that tray-loading CD-i players enter this mode if STOP is held while the player is turned on, and the tray then stays shut; turning the player on again with STOP held switches it off.[20]
  • Philips's notes for the power supply are that a blown fuse usually means a shorted switching transistor 7002, and that a supply which squeals has a short on its secondary side or has tripped its overvoltage protection.[5]

Fault finding is on the Philips CDI 205 Troubleshooting Guide, dismantling and routine work on the Philips CDI 205 General Maintenance page, and the electrolytic capacitors on the Philips CDI 205 Capacitor Replacement Guide.

Documentation

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References

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  1. ↑ 1.0 1.1 1.2 The New International CD-i Association (ICDIA), "Philips consumer CD-i players" (retrieved 2026-10-20): the CDI 205 as the European version of the CDI 910, sold officially only in the UK at the European launch in 1992.
  2. ↑ 2.0 2.1 2.2 Philips, Service Manual CDI 205/00/05 (4822 725 24103), PDF p. 2, section 2.1 (port 1: front, MMC slave processor 68HC05, 1200 and 9600 baud; port 2: rear, on-chip UART of the SCC68070, 75 to 19200 baud; laser 780 nm). File:Philips CDI 205 Service Manual.pdf.
  3. ↑ 3.0 3.1 3.2 3.3 Philips, Service Manual CDI 205/00/05 (4822 725 24103), PDF p. 66, section 7.2.5 (measurements on MMC panel 1001; 68070 at IC7201; 68HC05 clock at IC7206). File:Philips CDI 205 Service Manual.pdf.
  4. ↑ 4.0 4.1 4.2 4.3 Philips, Service Manual CDI 205/00/05 (4822 725 24103), PDF p. 21, section 5.1 (low-level test, step 1: one 4 Mbit ROM; MK48T08B clock and calendar chip on the Mini MMC; memory map with two 512 KB DRAM banks, 512 KB system ROM and 8 KB NVRAM). File:Philips CDI 205 Service Manual.pdf.
  5. ↑ 5.0 5.1 5.2 5.3 5.4 Philips, Service Manual CDI 205/00/05 (4822 725 24103), PDF p. 60, section 7.1 (all boards serviceable to component level except the MMC board; CDM-9 replaced as an assembly; power supply service hints). File:Philips CDI 205 Service Manual.pdf.
  6. ↑ 6.0 6.1 Philips, Service Manual CDI 205/00/05 (4822 725 24103), PDF p. 5, section 2.2 (front panel controls and rear panel connections). File:Philips CDI 205 Service Manual.pdf.
  7. ↑ 7.0 7.1 7.2 7.3 Philips, Service Manual CDI 205/00/05 (4822 725 24103), PDF p. 3, section 2.1 (dimensions, weight, 220/240 V 50–60 Hz, approx. 35 W; RGB on the Euroconnector for /00 and /05). File:Philips CDI 205 Service Manual.pdf.
  8. ↑ 8.0 8.1 Philips Interactive Media Systems, Service Manual: Compact disc interactive player CDI 205/00/05, 4822 725 24103, PDF p. 1 (cover). Hosted as File:Philips CDI 205 Service Manual.pdf.
  9. ↑ 9.0 9.1 9.2 9.3 retrostuff, "Modifications for Philips CD-i Players" (retrieved 2026-10-20): sections "Mini MMC (NTSC)" (205/11, 205/17T, 910/17P) and "Mini MMC" (205/00, 220/00): CXA1145P encoder, 8 KB NVRAM only, CDM 9/44.
  10. ↑ 10.0 10.1 10.2 10.3 ICDIA, "Comparison table of all Philips and Philips-build consumer CD-i players" (retrieved 2026-10-20): rows CDI 205/00 and CDI 220/00; special and OEM versions CDI 910/xx (US version of the CDI 205, launch model October 1991) and CDI 205/17T (Memorex CDI-2200, sold by Tandy).
  11. ↑ Philips, Service Manual CDI 205/00/05 (4822 725 24103), PDF p. 55, section 6.7.1 (MMC PCB, component side view). File:Philips CDI 205 Service Manual.pdf.
  12. ↑ ICDIA, "Philips' version indication method" (retrieved 2026-10-20).
  13. ↑ 13.0 13.1 13.2 Philips, Service Manual CDI 205/00/05 (4822 725 24103), PDF p. 15, section 4.1 (demounting instructions, panel numbers 1002 to 1007, CDM loader). File:Philips CDI 205 Service Manual.pdf.
  14. ↑ Philips, Service Manual CDI 205/00/05 (4822 725 24103), PDF pp. 35–36, section 6.4.1 (circuit diagram CD part 1). File:Philips CDI 205 Service Manual.pdf.
  15. ↑ 15.0 15.1 Philips, Service Manual CDI 205/00/05 (4822 725 24103), PDF pp. 47–48, section 6.5.1 (APU circuit diagram). File:Philips CDI 205 Service Manual.pdf.
  16. ↑ Philips, Service Manual CDI 205/00/05 (4822 725 24103), PDF pp. 53–54, section 6.6.3 (video encoder circuit diagram). File:Philips CDI 205 Service Manual.pdf.
  17. ↑ Philips, Service Manual CDI 205/00/05 (4822 725 24103), PDF p. 58, section 6.8.4 (display panel and headphone panel circuit diagram). File:Philips CDI 205 Service Manual.pdf.
  18. ↑ Philips, Service Manual CDI 205/00/05 (4822 725 24103), PDF p. 61, section 7.2.1.1 (power supply checkpoints). File:Philips CDI 205 Service Manual.pdf.
  19. ↑ retrostuff, "NVRAM+RTC Solutions for Philips CD-i Players" (retrieved 2026-10-20): section "8 KB (Timekeeper)".
  20. ↑ Philips Consumer Service GmbH, Cologne, service information "Vorführ-Mode" for all CD-i players with a tray, with customer leaflet, in German; bound in at PDF pp. 67–68 of File:Philips CDI 205 Service Manual.pdf.
  21. ↑ Philips Consumer Electronics Company, Technical Training Manual: Compact Disc-Interactive, Philips CDI910, ST1436-292. Hosted as File:Philips CDI 910 Technical Training Manual.pdf.


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