Philips CDI 605 General Maintenance
The Philips CDI 605 is a professional CD-i player. Philips' user manual for it is dated 1992, and the manual for the tray-loading CDI 605T is dated 1993.[1][2] The faults reported on these players are a flat Timekeeper NVRAM chip on the MMC panel, a sticking and squealing tray on the 605T, and a noisy fan.[3][4] The disassembly order and the part numbers below come from Philips' 605T service manual, which covers the tray loader, the CD panel, the expansion panel and the extension board. The chapters on the power supply, the MMC panel and the caddy mechanism are in the CDI 605/00/05/17 service manual (4822 725 24083), which ICDIA does not host.[5][6]
Safety
[edit | edit source]- Unplug the player before opening it. The power supply is a mains switched-mode unit. retrostuff.org's advice for CD-i supplies is to leave the power switch in the on position for a while after unplugging, so that the large filter capacitors discharge, and not to run a supply without a load.[7]
- Check the 110/220 V voltage selector (SK-4) on the rear panel before connecting the player to the mains. Philips gives the supply range as 100–120 V or 220–240 V ±10 %.[1][5]
- The player is a class 1 laser product, and the service manual cover carries the warning that invisible laser radiation is present when the unit is open and the interlock defeated. Philips also requires that safety components, marked with a warning triangle in the diagrams, are replaced only with identical parts.[5]
- Philips' conditions for its central repair service required boards to be handled in an ESD-protected environment.[5]
Disassembly
[edit | edit source]Philips' demounting chart (section 4.1) gives the screws that hold each part, with a circled number that matches the screws in the exploded drawing.
| Part | Screws | Marker in the drawing |
|---|---|---|
| Cover | 5 | 1 |
| Bottom plate | 9 | 2 |
| Text plate | 3 | 3 |
| Print bracket for the extension | 2 | 4 |
| Floppy disk drive unit | 4 | 5 |
| MMC panel | 2 | 6 |
| Front | 3 | 7 |
| PLL and emulator panels | 3 | 8 |
| Power supply | 6 | 9 |
| Support bracket | 1 | 10 |
| CD panel | 5 | 11 |
| Headphone panel | 3 | 12 |
| Control panel | 2 | 13 |
| Extension I (22ER9132/40) | 2 | 14 |
| Tray loader | 3 | 15 |
The chart's arrows give these routes, all starting with the cover: the extension board, its print bracket, the floppy drive unit and then the MMC panel; the bottom plate, then the front, which carries the headphone and control panels; the bottom plate, the support bracket, the tray loader and then the CD panel; and the text plate before the power supply. [5] The drawing marks the cover screws as M2.5 × 6 mm.[5] The owner of a 605T at retrostuff.org adds these points from his strip-down:[4]
- Remove the case and the bezels of the two extension cards at the rear. Slide the lower card out first; otherwise its metal plate grinds on the solder side of the upper card.
- Pull the tray all the way out and release it by pressing its plastic spring with a blunt tool such as a flat screwdriver. Taking the tray out first makes it easier to refit the drive.
- Note the two connectors on the right-hand side of the extension riser. They are the same size and easily swapped.
- The Timekeeper on the MMC panel can be seen once the floppy drive assembly is out, but it is soldered from both sides and cannot realistically be removed inside the case.
Tray loader (605T)
[edit | edit source]The 605T has Philips' tray loader 915 with a CDM 9 mechanism.[5] A slack belt and dried grease stop the tray moving, make it stick, or make it squeal when it opens and closes. The squeal comes from the large wheel driven by the belt.[4]
- Remove the belt and pull off the large wheel.
- Clean the old grease away, then grease the spindles and gears again. retrostuff.org used a PTFE-based model-making grease.
- Keep grease off the belt. Replace the belt if the tray will not open and close by itself.
- Before refitting the tray, check the teeth on the tray and the loader for dried grease and clean them.
| Item | Philips part number |
|---|---|
| Belt | 4822 358 31168 |
| Pulley | 4822 528 81465 |
| Drive pinion | 4822 528 81464 |
| Motor assembly | 4822 361 21492 |
| Microswitch | 4822 276 13222 |
| CDM 9 unit | 4822 691 30275 |
| CDM 9 unit with sub-chassis | 4822 691 30277 |
| Complete loader without CDM | 4822 691 30294 |
Caddy loading (605/00)
[edit | edit source]The 605/00 takes discs in a caddy. The caddy will not go in if a disc is already loaded or if the caddy is held upside down. Because discs live in caddies, Philips says they rarely need cleaning; when one does, wipe it with a soft lint-free cloth in a straight line from the centre to the edge, and never use record cleaners, detergents or abrasives.[1] The caddy panel diagram (section 6.5.4) is in the 605/00 service manual and not in the 605T supplement.[5]
Timekeeper NVRAM
[edit | edit source]The Mini MMC board keeps the player's settings, the clock and user data in an 8 KB Timekeeper chip, an SGS-Thomson MK48T08B or STMicroelectronics M48T08 with a built-in BR1225 cell and 32.768 kHz crystal. Once the cell is flat the player forgets its settings at every power-off and can stop at a light blue screen or the "memory full" error.[8] retrostuff.org's advice is:
- Fit a standard (not precision) wide 28-pin socket so that the next replacement is easy.
- Remove the old chip with fresh solder, plenty of flux, a powerful desoldering gun and wick. Some or all of the pins are soldered on both sides.
- Buy chips from the manufacturer or an official distributor, not "new" Timekeepers from online marketplaces.
- The M48T08-150PC1 is still made. The Dallas DS1643 is a compatible replacement but is no longer made, and repair boards that replace the battery top hat of an old MK48T08B are sold (Glitch Works GW-48T08-1) or published as Gerber files.
- After fitting a new chip, calibrate the clock with the calibration option in the low-level test.
[8] On his 605T the owner mounted the MMC panel in a PCB holder so that he could work on both sides, and needed a soldering iron on the top side as well as the desoldering gun underneath.[4] Battery and corrosion damage are covered on Battery Explosion, Capacitor or Corrosion Damage.
Fan, floppy drive and extension cards
[edit | edit source]- The 605T examined at retrostuff.org has a Japan Servo TUDC12B4-937 fan, which only needed light cleaning.[4]
- The floppy drive is a Mitsubishi MF355C-299MG with its controller board attached.[4] Philips listed the floppy disk controller as a central repair item, service code 4822 214 51852.[5] Drive care is on Floppy Drive Repair.
- The 22ER9132/40 extension carries the extra 4 MB of RAM and the SCSI, printer and Ethernet ports. Make all connections to its ports with the power off.[5]
Cleaning
[edit | edit source]Clean the cabinet with a chamois leather moistened with water, and do not use cleaning agents containing alcohol, spirits, ammonia or abrasives. To clean the mouse, turn the ball retainer anticlockwise, take out the ball, wipe it with a clean, soft, dry cloth (never cleaning fluid or tissue), wipe the housing, and lock the retainer again clockwise.[1]
Checks while the player is open
[edit | edit source]| Check | What to look for |
|---|---|
| Timekeeper | Do the time, date and settings survive a power cycle?[8] |
| Tray loader (605T) | Slack belt, dried grease, squeal[4] |
| Fan | Dust, noise[4] |
| Digital Video board | Missing SMD capacitors; the 605T's 22ER9424 board at retrostuff.org had lost 2307 and 2433, later replaced with 22 pF 0805 parts checked against a 22ER9141 board[4] |
| Metalwork | Debris and rust spots from damp storage were found on the rear panel and port shields of the same player[4] |
| CD panel electrolytics | See the Philips CDI 605 Capacitor Replacement Guide |
Related pages
[edit | edit source]- Philips CDI 605
- Philips CDI 605 Troubleshooting Guide
- Philips CDI 605 Capacitor Replacement Guide
- Philips CDI 605 Documentation
- Philips CDI 910 General Maintenance
- Recommended Tools
References
[edit | edit source]- ↑ 1.0 1.1 1.2 1.3 Philips Interactive Media Systems, CDI 605 User Manual, 3104 125 20282, © 1992: front and rear panels p. 4; cleaning and technical data p. 16; Before Requesting Service p. 18. Hosted here as File:Philips CDI 605 User Manual.pdf; see Philips CDI 605 Documentation.
- ↑ Philips Interactive Media Systems, CDI 605T User Manual, 3104 125 20283, © 1993: technical data (approx. 40 W, 420 × 90 × 400 mm, 7 kg). Hosted here as File:Philips CDI 605T User Manual.pdf.
- ↑ First Steps in OS-9 on Philips CDI605T, retrostuff.org, 21 July 2019—link(accessed 2026-10-20) Owner's report on a CDI 605T/20: settings lost at power-off, the TOOLS menu, the Mini MMC low-level test menu, the terminal on port 3, and the "memory full" screen.
- ↑ 4.00 4.01 4.02 4.03 4.04 4.05 4.06 4.07 4.08 4.09 4.10 Philips CDI605T Disassembly and Repair, retrostuff.org, 7 August 2019, revised 24 May 2025—link(accessed 2026-10-20) Owner's disassembly and repair of a CDI 605T/20: extension cards, tray belt and grease, Timekeeper replacement, fan, floppy drive, DVC capacitors, board photographs.
- ↑ 5.00 5.01 5.02 5.03 5.04 5.05 5.06 5.07 5.08 5.09 5.10 Philips Interactive Media Systems Service & Support, Service Manual CDI 605T/20/37, service code 4822 725 24695, cover imprint W.L.0993: cover note and contents (PDF pp. 1–3); connections and controls, section 2.2 (PDF p. 4); test discs, service tools and central repair items, sections 3.5 and 3.6 (PDF p. 12); exploded view and demounting chart, section 4.1 (PDF p. 13); cabinet and tray loader 915 parts lists, sections 4.1.1 and 4.2.1 (PDF p. 14); overall block diagram, section 6.1 (PDF p. 15); CD panel circuit diagrams, layouts and parts list, sections 6.4.1 to 6.4.4 (PDF pp. 18–21); extension panel FMV, section 6.6 (PDF pp. 22–23); CD panel measurements, section 7.2.2 (PDF p. 24); extension 22ER9132/40 specification, section 8.2 (PDF p. 25). Hosted here as File:Philips CDI 605T Service Manual.pdf.
- ↑ CD-i Service Manuals, The New International CD-i Association—link(accessed 2026-10-20) Row CDI 605T: Mini-MMC board, diagrams shared with the CDI 605, 603 and 610.
- ↑ Philips CD-i Power Supply Units, retrostuff.org, 29 September 2024, revised 10 July 2026—link(accessed 2026-10-20) Section "Maxi MMC / Mini MMC" and the general warning on filter capacitors.
- ↑ 8.0 8.1 8.2 NVRAM+RTC Solutions for Philips CD-i Players, retrostuff.org, 31 December 2021, revised 25 November 2025—link(accessed 2026-10-20) Section "8 KB (Timekeeper)": chip types, BR1225 cell, symptoms of a flat cell, replacements.