Clamper Trouble by CDM12.4 Loader L1265/51 in use by Primare, Thule, McLaren CD20R Cyrus DAD3 and NADs500
The image of this clamper you will find in the attachment.
This loader (Philips order code) "3104 147 02481" is in use by follow so called "High End Audio" compact disc player models (only PCM read):
1) Tag McLaren CD20R + CDT20R
2) Cyrus DAD3
3) NAD s500
4) T+A CD 1210 R, CD1220 R
5) various other models like e.g. Quad 77, go to
http://www.diyaudio.com/forums/digital-source/180483-problem-quad-cd-77-help-needed.html
Creek, Audiolab 8000CD, Primare D20 and D30, SONIC FRONTIERS SFCD-1 (please note: only partly equipped with this loader, in any case there is to find it's predecessor, the loader 1210 resp. L1210).
More details to this loader are to find there:
http://www.diyaudio.com/forums/digi...ayer-models-loader-l1265-l-1265-cdm-12-a.html
The main issue by the clamper unit of this loader is a difficult to describe knocking/tickling noise (mechanical noise, to hear from the rotating disc and not from the speakers) in combination with an unwanted suspending playback until stopp mode occurs.
Some years ago I order the appropriate new parts from Philips (Clamperplate 4822 466 12037 and Clamper 4822 466 12038 so as the plastic chassis No 46 and 41) and the issue was solved.
Currently I look for a used CDR765 to get this parts, because for the playback loader device (not for the burner device) the same parts are in use - unfortunately the only possibility at the moment.
But the actually reason for the knocking/tickling noise I haven't find out until this day, because this is temporarily and not permanent audible, also independend of the thickness from the compact disc itself.
Actually only the following errors must be exist:
1) White plastic clamper roughened or bad lubrication, thus increased friction resistance on top to the clamper plate
2) Plate and clamper a bit warped/deformed
3) Plastic chassis devices from the loader a bit warped/deformed
Who knows (resp. how I can find out) the exactly reason for this?
Maybe one of the members have a associated advice from Philips (Service Bulletin-Repair Tips).
Thank you for your advices.
The image of this clamper you will find in the attachment.
This loader (Philips order code) "3104 147 02481" is in use by follow so called "High End Audio" compact disc player models (only PCM read):
1) Tag McLaren CD20R + CDT20R
2) Cyrus DAD3
3) NAD s500
4) T+A CD 1210 R, CD1220 R
5) various other models like e.g. Quad 77, go to
http://www.diyaudio.com/forums/digital-source/180483-problem-quad-cd-77-help-needed.html
Creek, Audiolab 8000CD, Primare D20 and D30, SONIC FRONTIERS SFCD-1 (please note: only partly equipped with this loader, in any case there is to find it's predecessor, the loader 1210 resp. L1210).
More details to this loader are to find there:
http://www.diyaudio.com/forums/digi...ayer-models-loader-l1265-l-1265-cdm-12-a.html
The main issue by the clamper unit of this loader is a difficult to describe knocking/tickling noise (mechanical noise, to hear from the rotating disc and not from the speakers) in combination with an unwanted suspending playback until stopp mode occurs.
Some years ago I order the appropriate new parts from Philips (Clamperplate 4822 466 12037 and Clamper 4822 466 12038 so as the plastic chassis No 46 and 41) and the issue was solved.
Currently I look for a used CDR765 to get this parts, because for the playback loader device (not for the burner device) the same parts are in use - unfortunately the only possibility at the moment.
But the actually reason for the knocking/tickling noise I haven't find out until this day, because this is temporarily and not permanent audible, also independend of the thickness from the compact disc itself.
Actually only the following errors must be exist:
1) White plastic clamper roughened or bad lubrication, thus increased friction resistance on top to the clamper plate
2) Plate and clamper a bit warped/deformed
3) Plastic chassis devices from the loader a bit warped/deformed
Who knows (resp. how I can find out) the exactly reason for this?
Maybe one of the members have a associated advice from Philips (Service Bulletin-Repair Tips).
Thank you for your advices.
Attachments
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No. The showed steel ball in your image from post #6 isn't from the loader parts showed in post #1
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Yes, i know but does it have one as well? Most of the time there will be a hole (created by the ball over time) and because of the spinning the hole is no longer centered and then the ball sometimes jumps in and out of this created hole causing noise and scipping of the disc.
I hate all plastic loaders with tray - even that one from CDM4/19 - go to
JusTone Lasereinheiten. CDM4/19 / CDM4 CDM419 Laufwerk PHILIPS ROTEL REVOX. Lasereinheit, Laserpickup, Laserunit, Pickup, Laser, Laserkopf
I recommend all who are interested in vintage cd player models to only buy top loaders without tray like the Micromega SOLO or Krell MD-1/CD-DSP.
JusTone Lasereinheiten. CDM4/19 / CDM4 CDM419 Laufwerk PHILIPS ROTEL REVOX. Lasereinheit, Laserpickup, Laserunit, Pickup, Laser, Laserkopf
I recommend all who are interested in vintage cd player models to only buy top loaders without tray like the Micromega SOLO or Krell MD-1/CD-DSP.
I use a Chord Blu and a BOW ZZ eight (both top loaders)
Plus i use some VRDS transports as well.
What about the CD94 with tray but no clamp?
Plus i use some VRDS transports as well.
What about the CD94 with tray but no clamp?
CD94 without clamp ?
I don't believe it
Marantz CD-94 CD Player Philips CDM-1 TDA-1541A U*S*A Design Photo #1874573 - US Audio Mart
The mentioned top loaders use both last cd mechanism versions. The mechanism successors are only making for cheap DVD player - nevertheless using in cd player devices for upper price class.
Laser heads are in the kind of this one
VAM1204 VAM1205 VAM1206 VAM1250 VAM1252 VAM1254 CDM12pro VAU1254=CDM12.4 compatib
Source for Philips CDM12.4 + L1210 mechanism
Phllips CDM 12.4 transport compatible replacement
Stripdown/Clean of CDM12.4
Quality by replacements are not good (china copy) even genuine devices have short live time.
therefore I prefer mechanism CDM-1 until CDM-4.
I don't believe it
Marantz CD-94 CD Player Philips CDM-1 TDA-1541A U*S*A Design Photo #1874573 - US Audio Mart
The mentioned top loaders use both last cd mechanism versions. The mechanism successors are only making for cheap DVD player - nevertheless using in cd player devices for upper price class.
Laser heads are in the kind of this one
VAM1204 VAM1205 VAM1206 VAM1250 VAM1252 VAM1254 CDM12pro VAU1254=CDM12.4 compatib
Source for Philips CDM12.4 + L1210 mechanism
Phllips CDM 12.4 transport compatible replacement
Stripdown/Clean of CDM12.4
Quality by replacements are not good (china copy) even genuine devices have short live time.
therefore I prefer mechanism CDM-1 until CDM-4.
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