Jump to content

Philips CDI 205 Capacitor Replacement Guide

From RetroTechCollection

The Philips CDI 205 has electrolytic capacitors on its power supply panel, CD panel, APU (audio) panel, video encoder panel and display panel. Philips's service manual for the 205/00 and 205/05 has circuit diagrams for all of these, and the values below were read from those diagrams. The manual has no circuit diagram or parts list for the MMC board, which Philips replaced as a unit.[1][2] Position numbers repeat from panel to panel, so always note which panel a part is on: 2681, for example, is a 2200 µF capacitor on the CD panel but a 22 pF trimmer on the encoder panel.[3][4]

Safety

[edit | edit source]

Unplug the player and leave the power switch on for a while before working on the supply, so that the large filter capacitors discharge, and measure the two 200 V reservoir capacitors before touching them.[5] Philips asks for repairs to be made with the set on an isolating transformer, with no modules changed while it is switched on, and for parts marked with a warning triangle to be replaced only with identical types.[6]

Power supply panel (1006)

[edit | edit source]
Philips CDI 205 power supply circuit diagram (service manual)
The CDI 205 power supply circuit diagram from the service manual
Power supply electrolytics (section 6.3.2)
Ref Value Position
2006 220 µF 200 V Mains reservoir; series pair with 2012, with the 220/110 V link SK 4 at their midpoint
2012 220 µF 200 V Mains reservoir, second of the pair
2010 1.5 µF 50 V Drive circuit of the switching stage, beside 7001 and 7004
2023 220 µF 63 V −12 V winding, after rectifier 6022 and before choke 5006
2021 680 µF 25 V −12 V output, after choke 5006
2019 220 µF 25 V −8 V, output of regulator 7005
2020 470 µF 25 V −8 V fan supply, after 3015
2024 220 µF 63 V +12 V winding, after rectifier 6021 and before choke 5007
2018 220 µF 25 V +12 V output
2017 220 µF 25 V +8 V, output of regulator 7006
2015 220 µF 25 V +30 V output, after choke 5009
2025 10 000 µF 10 V +5.2 V winding, after dual rectifier 6023
2028 10 000 µF 10 V +5.2 V, before choke 5008
2027 3300 µF 10 V +5.2 V output, after choke 5008

[7] 2015 is marked 25 V on a rail that Philips's checkpoint table gives as +28.5 V, while the diagram's own reading beside that output is +20.5 V.[7][8] Measure the rail on your player and fit a part rated comfortably above the reading; 35 V or more covers the checkpoint figure. The parts list for this panel names no electrolytics individually; the only capacitors it lists are 2001, a 330 nF 250 V polyester part, and 2032, a 470 pF ceramic.[7]

CD panel (1004)

[edit | edit source]

The CD panel diagrams are shared with other Mini MMC players, and notes on them mark the parts fitted only to the CDI 205, to the 6xx players or to players with full-motion video. The turntable motor section is marked as not used on the CDI 205.[3][9]

CD panel electrolytics (sections 6.4.1 and 6.4.4)
Ref Value Position
2113 47 µF 25 V CD part 1 diagram
2122 33 µF 16 V CD part 1 diagram
2140 470 nF 50 V CD part 1 diagram
2307, 2308, 2310 2.2 µF 50 V; 33 µF 16 V; 33 µF 16 V CD part 1 diagram
2201 33 µF 16 V Supply of the drive processor 7201
2314 33 µF 25 V +5 V supply of the ADOC 7310 (PCF3523), after 3313
2107 33 µF 16 V −5 V supply, made from −8 V through 3104 and zener 6103
2623 47 µF 25 V +5VC supply, after 3620
2621 47 µF 25 V +12VA supply, after 3621
2622 47 µF 25 V −12VA supply, after 3622
2630 22 µF 50 V Audio kill (muting) circuit
2631 1000 µF 16 V Audio kill circuit, after diode 6622
2632 47 µF 25 V Audio kill circuit
2681 2200 µF 25 V Headphone amplifier 7651 supply, between 3655 (+12 V) and 3656 (−12 V)
2501, 2502 22 µF 10 V Left and right audio coupling, after the mixing amplifier 7551

[10][3]

APU panel (1002)

[edit | edit source]
APU electrolytics (section 6.5.1)
Ref Value Position
2407 47 µF 25 V Digital supply of the DAC 7400 (SAA7321), after 5402
2410, 2413, 2414 47 µF 25 V Analogue supplies of 7400, after 3406, 3407 and 3408
2415, 2420, 2422 47 µF 25 V Decoupling on 7400 pins 15, 44 and 17
2513, 2514, 2515, 2516, 2517, 2518, 2523, 2524 47 µF 25 V Supply decoupling of the LM833 filter and output amplifiers 7501 to 7504
2519, 2520, 2550, 2551 33 µF 16 V Coupling in series with the signal, after the filter amplifiers
2529, 2530 22 µF (16 V on the diagram) Right and left output coupling, after 7504

[11] The APU parts list gives 2529 and 2530 as bipolar 22 µF 10 V parts, code 4822 124 41738, so the diagram and the list disagree on the voltage. Fit bipolar 22 µF parts rated at 16 V or more.[12] The other coupling capacitors in the audio path (2501, 2502, 2519, 2520, 2550 and 2551) carry no polarity note in the parts lists; check the markings on the parts you remove and fit bipolar replacements where the originals are bipolar.[12]

Video encoder panel (1003)

[edit | edit source]
Video encoder electrolytics (section 6.6.3)
Ref Value Position
2662 10 µF 50 V +5A supply, after 3661
2614 100 µF 10 V Vcc1 of encoder 7601 (CXA1145P), after 3618
2606 10 µF 50 V Vcc2 of 7601, after 3619
2613 10 µF 50 V Reference pin 13 of 7601
2646 10 µF 50 V Coupling into the luminance output stage 7628
2666, 2667 33 µF 10 V Loop filter of the NTSC phase-locked loop 7661 (NE564)
2669 1 µF 50 V Bias filter of 7661

[4]

Display panel (1005)

[edit | edit source]

The display panel has one electrolytic, 2106, 22 µF 40 V, on the +33 VA supply to the display driver after resistor 3109. The headphone panel has none.[13]

Totals

[edit | edit source]

Across the five panels the diagrams show 62 electrolytics: 14 on the power supply, 18 on the CD panel, 21 on the APU, 8 on the encoder and 1 on the display panel. In total: 2 × 220 µF 200 V, 2 × 10 000 µF 10 V, 1 × 3300 µF 10 V, 2 × 220 µF 63 V, 1 × 680 µF 25 V, 1 × 470 µF 25 V, 4 × 220 µF 25 V, 1 × 2200 µF 25 V, 1 × 1000 µF 16 V, 1 × 100 µF 10 V, 20 × 47 µF 25 V, 1 × 33 µF 25 V, 9 × 33 µF 16 V, 2 × 33 µF 10 V, 2 × 22 µF 16 V (bipolar), 2 × 22 µF 10 V, 1 × 22 µF 50 V, 1 × 22 µF 40 V, 4 × 10 µF 50 V, 1 × 2.2 µF 50 V, 1 × 1.5 µF 50 V, 1 × 1 µF 50 V and 1 × 470 nF 50 V.[7][10][3][11][4][13]

MMC board

[edit | edit source]

No values are published for the Mini MMC board itself. Before replacing anything there, photograph both sides and record the position number, value, voltage, size and polarity of each electrolytic from the board, then replace one part at a time. The same applies to the 220/00, the other player built on this board.[2][14]

Procedure

[edit | edit source]
  1. Unplug the player, remove any disc, and open it as described on the maintenance page. The power supply, APU and encoder panels can each be lifted out on their own.[15]
  2. Work on one panel at a time and check each part against the tables before removing it.
  3. Fit replacements of the same capacitance and at least the same voltage rating, observing polarity.
  4. Test the power supply on the bench before refitting it, with a load on the +5.2 V output (Philips gives 4 Ω 25 W), and never run it unloaded.[8]
  5. Check the outputs against the checkpoint table and set +5.2 V with R3020 to 5.3 V ±40 mV at test point 51.[8]
  6. After reassembly, run the service shell's video, CD and audio tests.[16]
[edit | edit source]

References

[edit | edit source]
  1. ↑ 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). File:Philips CDI 205 Service Manual.pdf.
  2. ↑ 2.0 2.1 Philips, Service Manual CDI 205/00/05 (4822 725 24103), PDF p. 55, section 6.7.1 (MMC PCB, component side view; no MMC circuit diagram or parts list in the manual). 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. 45, section 6.4.4 (circuit diagram CD part 2, with notes for CDI 205, CDI 6xx and FMV-only parts). File:Philips CDI 205 Service Manual.pdf.
  4. ↑ 4.0 4.1 4.2 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.
  5. ↑ retrostuff, "Philips CD-i Power Supply Units" (retrieved 2026-10-20): safety warning on filter capacitors.
  6. ↑ Philips Interactive Media Systems, Service Manual: Compact disc interactive player CDI 205/00/05, 4822 725 24103, PDF p. 7, section 3.1 (safety instructions). Hosted as 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. 33, sections 6.3.2 (power supply circuit diagram) and 6.3.3 (list of electrical parts, power supply). File:Philips CDI 205 Service Manual.pdf.
  8. ↑ 8.0 8.1 8.2 Philips, Service Manual CDI 205/00/05 (4822 725 24103), PDF p. 61, section 7.2.1 (power supply load, checkpoints and adjustment). File:Philips CDI 205 Service Manual.pdf.
  9. ↑ Philips, Service Manual CDI 205/00/05 (4822 725 24103), PDF p. 46, section 6.4.5 (turntable motor part, "not relevant for CDI205"). File:Philips CDI 205 Service Manual.pdf.
  10. ↑ 10.0 10.1 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.
  11. ↑ 11.0 11.1 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.
  12. ↑ 12.0 12.1 Philips, Service Manual CDI 205/00/05 (4822 725 24103), PDF p. 49 (repeated on p. 51), APU parts list (2529 and 2530: 4822 124 41738, bipolar 22 µF 10 V). File:Philips CDI 205 Service Manual.pdf.
  13. ↑ 13.0 13.1 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.
  14. ↑ retrostuff, "Modifications for Philips CD-i Players" (retrieved 2026-10-20): section "Mini MMC" (205/00 and 220/00).
  15. ↑ Philips, Service Manual CDI 205/00/05 (4822 725 24103), PDF p. 15, section 4.1 (demounting instructions). File:Philips CDI 205 Service Manual.pdf.
  16. ↑ Philips, Service Manual CDI 205/00/05 (4822 725 24103), PDF p. 25, section 5.2 (service shell). File:Philips CDI 205 Service Manual.pdf.


Retrieved from "https://retrotechwiki.com/index.php?title=Philips_CDI_205_Capacitor_Replacement_Guide&oldid=27750"