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Old 21st December 2011, 09:05 PM   #21
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What it actually does:
When I put the power on without a disk then lens moves one time up flashes red and the motor makes a one tenth turn max then it stops.
When I put a disc in and press play I hear some mechanical noise the disc turns the same amount and then nothing happens.
I have a servicemanual from the Philips CDM-9 Mod 4 but there's no flowchart just schematics and partnumbers and some graphs and voltagelevels.
This is the board underneath the CDM PRO9.
Attached Images
File Type: jpg CDM9 Pro board Top.jpg (134.5 KB, 155 views)
File Type: jpg CDM9-Pro board under.jpg (138.5 KB, 149 views)
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Old 21st December 2011, 09:35 PM   #22
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Location: D-55629 Schwarzerden
Quote:
Originally Posted by BrianEno View Post
What it actually does:
When I put the power on without a disk then lens moves one time up flashes red and the motor makes a one tenth turn max then it stops.
When I put a disc in and press play I hear some mechanical noise the disc turns the same amount and then nothing happens.
I have a servicemanual from the Philips CDM-9 Mod 4 but there's no flowchart just schematics and partnumbers and some graphs and voltagelevels.
This is the board underneath the CDM PRO9.
This PCB is a version also used in jukebox devices and broadcast devices (industrial version).
about the term ' Philips "CD Engine II" '
I get this URLs:
宾士级的音响 评Linear Acoustic LACD-1 CD唱盘 赖英智 - 脑吗啡的日志 - 网易博客
linear acoustic - Eine Reise in die deutsche High-End-Vergangenheit... - CD-Player
憨ぃ惠蔼基Micromega T╰计╰参

But the service Manual of this model might be help:
http://lampizator.eu/LAMPIZATOR/TRAN...transport.html
Philips CD930/CD931/CD940 service manual
and also the SM of this model:
http://www.studerundrevox.de/images/...spekt-01-k.jpg
http://www.hifitime.com/audio/20100814/72024.html (inside view)
http://img03.taobaocdn.com/imgextra/...!!55799068.jpg

Last edited by tiefbassuebertr; 21st December 2011 at 09:54 PM.
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Old 25th December 2011, 11:56 AM   #23
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Just finished with swapping in the third laser and thought Bingo, it works.
Till the 5th track started and scratching noises appeared over the loudspeakers that intensified when consecutive tracks were played.
When I put in a CD with few tracks and runningtime like Diamond Life from Sade there's no problem, when I put in a CD with 20 tracks the music is unlisteble from track 4 or 5.
I'm really out of options now because there's no trimmer on the servoboard.

I bought a complete CD player with a advertized CDM9/60 (the Pro version) inside but when I took of the hood I immediately saw it was the CDM9/44 standard version. When I complained he basically said that he did not know it and I could drop dead.
Very nice indeed

I paid him 250 Euro's and another guy who sold them in Krell sparepart boxes 180 Euro's. Both laserunits were no good at all.
So in USD I'm 600.- lighter and still have no playing Krell KPS20i...

Happy Holidays nevertheless.
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Old 25th December 2011, 02:14 PM   #24
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Join Date: Jul 2005
Location: D-55629 Schwarzerden
Quote:
Originally Posted by BrianEno View Post
Just finished with swapping in the third laser and thought Bingo, it works.
Till the 5th track started and scratching noises appeared over the loudspeakers that intensified tracks were played.
When I put in a CD with few tracks and runningtime like Diamond Life from Sade there's no problem, when I put in a CD with 20 tracks the music is unlisteble from track 4 or 5.
I'm really out of options now because there's no trimmer on the servoboard.

I bought a complete CD player with a advertized CDM9/60 (the Pro version) inside but when I took of the hood I immediately saw it was the CDM9/44 standard version. When I complained he basically said that he did not know it and I could drop dead.
Very nice indeed

I paid him 250 Euro's and another guy who sold them in Krell sparepart boxes 180 Euro's. Both laserunits were no good at all.
So in USD I'm 600.- lighter and still have no playing Krell KPS20i...

Happy Holidays nevertheless.
Similar behaviour I observe in the moment by an older Philips CD player CD824 (roughly equivalent to the Marantz CD-42), that is for service by me (with CDM4 mech. so as TDA8808T/TDA8809T in the RF/Servo section).
The RF signal is correct from the Vss value (that means, laser diode isn't muddy), but incorrect in order to the wave form. Noise and RF interference are superimposed. I will investigate the APC circuit so as the DC voltage line for the RF preamp section in the next time.
Unfortunately this model isn't a service-friendly model, so that I must create several test points for checking voltages and wave forms while the operating mode.

BTW - the CDM9 laser head was equipped with the first me known hologram laser diode like this:
http://www.google.com.tw/patents?id=...page&q&f=false
http://www.datasheetcatalog.org/data...rp/mXqxuqy.pdf


check out also this threads:
Disc motor of CDM9pro (CDM-9pro), CDM12pro (CDM-12, CDpro), CDM12.6 and any VAM/VAU's
http://blog.sina.com.cn/s/blog_4a65750301008bfe.html
CDM9/65 motor
Compact Disc Motor and Turntable - Advices for Replace and Motor Service wanted

Last edited by tiefbassuebertr; 25th December 2011 at 02:24 PM.
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Old 25th December 2011, 03:47 PM   #25
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Yeah it's really annoying.

I'm getting really confused about the differences between the:
Philips CDM9/44 & Philips CDM9/65

I know that the Philips CDM9/60 is the Pro version and the Philips CDM9/44 is the standard version with Mabuchi's RF-300C-11400 motor but what's the Philips CDM9/65?

I just bought two CDM9/44 units because I want to have the Krell running again as the Duson CD-100.
Are there any highend nineties players that have laserunits that are still fabricated or abudantly stashed.
Sony's KSS-151A is another "successtory" widely adopted in expensive Denon's, Wadia's and Spectrals.
They want us all to get streaming and throw away the archaic sources...
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Old 25th December 2011, 07:46 PM   #26
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Location: D-55629 Schwarzerden
as I know, CDM9 exists with two motor versions: one with brushed Mabuchi spindle motor and one with brushless motor version. Maybe there was additional various versions in the turntable (motorpulley), but this I don't know exactly. At least by the CDM12.1/VAM1202 (same basic outline of motor pulley resp. spindle turntable) there was two different magnet forces inside, and thus two different associated clamper units in those loader devices.
Here some lists, that I have created in the last years - perhaps of interest:

CDM-9 order codes
cdm9 pro 4822 691 30365
cdm9/42 4822 691 30241
cdm9/44 4822 691 30275
CDM9/44 4822 691 30277 CDM9STANDARD
cdm9/44 +spec.parts 4822 691 10403 CDM9/MOD.4
cdm9/63 4822 691 20748 CDM9DC63
cdm9/65 4822 691 30288 CDM9-NEXTEL PHI (Motorpulley for Toploader with heavy weight)

Models with CDM-9/65
Meracus IMAGO SAA7310GP CDM-9/65
PHILIPS CD931SAA7350CDM-9/65
PHILIPS CD951TDA1547 ?span lang=EN-US> SAA7350 ?SAA7310CDM-9/65
PHILIPS SCM965 691 .30288 (cdm9/65 = CDM9-NEXTEL PHI)

Models with CDM9/63
PHILIPS CD690 CDM9/63
PHILIPS CD692 CDM9/63
PHILIPS 70CD690 691 20748 (cdm9/63 CDM9DC63)
PHILIPS CD692 CDM9/44 (??? CDM9/63)
PHILIPS CD692 CDM9/44 (??? CDM9/63)

Models with CDM9/35
CDi 180: CDM9/35

Models with CDM9/42
PHILIPS CDI6O1 691 .30241 = cdm9/42 (Interaktiver CD-Player)

Models with CDM9/44
PHILIPS CD930 CDM9/44 TDA1547 SAA7310GP (Stereoplay 9/92 450 DM)
PHILIPS CD931 CDM9/44 TDA1547 (Stereoplay 6/94 500 DM)
PHILIPS CD940 CDM9/44 (Stereoplay 4/93 600 DM)
PHILIPS CD950 CDM9/44 TDA1547 (Stereoplay 6/92 1.000 DM)
PHILIPS CD951 CDM9/44 TDA1547
PHILIPS CDF190 CDM9/44 (Foto CD-Player, Stereoplay 6/93 850 DM)
PHILIPS DFS951 CDM9/44
PHILIPS FS911 CDM9/44 (Komplettanlage)
PHILIPS FS911DCC CDM9/44
PHILIPS FS931 CDM9/44
PHILIPS FS931 DCC CDM9/44
PHILIPS FS933 CDM9/44
QUAD 67 CS4328KP – SAA7310GP CDM-9/44
THETA DATA BASIC CDM-9/44 It's a Transport
T+A CD1200R SAA7310GP CDM-9/44 MC68HC705C9ACP (= ZC400012P) (Stereoplay 7/94 2.500 DM)

Models with CDM-9 Pro
AUDIOLAB 8000 CDM Transport
BURMEISTER 979 Transport CDM-9 Pro
EMT 982 PROFESSIONAL TDA1547 (DAC7) CDM-9 Pro
Forsell Air Reference Air Bearing Transport CDM-9 Pro
JADIS JD-1 Transport CDM-9 Pro
KRELL KPS 20i 4 x PCM63P-K – Motorola XC56002F CDM-9 Pro ( CDM-9/60 )
MARANTZ CD-23 2 x TDA1547 (DAC7) CDM-9 Pro
PHILIPS LHH-100 CDM9 pro TDA1547
ROTEL DCM-9PRO CDM 9 pro PCM63
ROTEL RCD-990 CDM-9 Pro 2 x PCM63P ? PMD100
T+A CD1400AC SM5864 CDM-9 Pro
THETA DATA BASIC CDM-9 Pro It's a Transport
T+A CD1400AC CDM-9 Pro SM5864

Models with CDM9 without mentioned suffix
Philips CR-206 CD-ROM PC CDM9
Meccanica CD CDM-9
ARCAM ALPHA 5 CDM-9
ARCAM ALPHA 5 PLUS CDM-9
ARCAM ALPHA 6 SM5864 – SM5840 CDM-9
ARCAM DELTA 270 PCM69AP-J CDM-9
AURA CD-50 SAA7321 CDM-9
GRUNDIG Autoradio SCD1910RDS 72008-658 (CDM-9)
MARANTZ 74CD23 CDM9
T+A CD1500R SM5864AP + PCM1702-K CDM-9
T+A CD3000R SM5864AP + PCM1702-K CDM-9
METAXAS MAS PHOS Transport CDM-9
MISSION-Cyrus DAD7 AD1861 CDM-9
NAIM AUDIO CD2 TDA1541A CDM-9
NAIM AUDIO CD3 TDA1541A-S1 (Single Crown) CDM-9 (Stereoplay 7/94 2.800 DM)
QUAD 66 TDA1541A CDM-9
ROTEL RCD-970BX 1 x TDA1305T CDM-9
ROTEL RCD-975 2 x TDA1305T CDM-9 (Stereoplay 3/97 1.200 DM)
T+A CD1500R CDM-9 SM5864AP + PCM1702-K
T+A CD3000R CDM-9 SM5864AP + PCM1702-K

CDi-models:
Philips CDI 205/00 - cdm9
Philips CDI 210/00 - cdm9
Philips CDI 210/20 - cdm9
Philips CDI 220/00 - cdm9
Philips CDI 220/20 - cdm9
Philips CDI 220/40 - cdm9

more about CDM9:
What DAC's and mechanics

more pics:
请教大家,如何更换CDM9光头 - 音响DIY论坛 - 中国音响DIY
彻底研究 PHILIPS CDM9 光头
DIYPlus • ???? - CDM9?CDM12?????
*导证j芔 :: View topic - иCDM4锣絃
求助 cdm9光头换无刷电机后装回碟托读不了碟 - 音响DIY论坛 - 中国音响DIY

the developer/designer of CDM9 is Mr. Rene Boonen, e-mail = rene.boonen@mech.kuleuven.ac.be and Paul Sas, URL:
ASA/EAA/DAGA '99 - Electronic Controlled Exhaust System For Car and Truck Engines
This I have read in the test report of Audiomeca's Mephisto in German's magazine Image HiFi, April 2000.
Attached Images
File Type: jpg CDM9-63 sticker.jpg (151.2 KB, 125 views)
File Type: jpg CDM9-63 top.jpg (129.8 KB, 116 views)
File Type: jpg CDM9-63 flex connector.jpg (146.6 KB, 112 views)

Last edited by tiefbassuebertr; 25th December 2011 at 07:55 PM.
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Old 6th January 2012, 01:00 AM   #27
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Join Date: Jan 2012
Hi, i have krell kps20i and my magnet-star got damaged

Anyone know where i can buy kps20i quenched star magnet clamps ?

Please help me, my email is: email address removed. Please PM

Click the image to open in full size.

Click the image to open in full size.

Last edited by wintermute; 6th January 2012 at 01:07 AM. Reason: removed email address
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Old 6th January 2012, 06:02 AM   #28
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Quote:
Originally Posted by BrianEno View Post
Just finished with swapping in the third laser and thought Bingo, it works.
Till the 5th track started and scratching noises appeared over the loudspeakers that intensified when consecutive tracks were played.
When I put in a CD with few tracks and runningtime like Diamond Life from Sade there's no problem, when I put in a CD with 20 tracks the music is unlisteble from track 4 or 5.
I'm really out of options now because there's no trimmer on the servoboard.
.
This may not be directly helpful, but may give some clue, but this is exactly the sort of behaviour you get from the older CDM-4/etc. if the laser current is not adjusted quite in range. While this cdm obviously is meant to be fully auto-calibrating, it would seem to me that something is disturbing the auto-laser-current control. Sure would explain why one replacement laser worked much better than another. Without having a schematic of the cdm's servo board handy, the first two things I would do is check every resistor on that board & replace any that are at all out of spec, and then replace all of the lytic caps on the pcb, which aren't many.
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