CDM9/65 motor - diyAudio
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Old 21st May 2009, 11:16 AM   #1
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Default CDM9/65 motor

Hello,

This is my first post in this forum.
I purchased an Arcam Alpha 6 CD player on ebay a few months back which turned out to have aparently broken in transport (the seller interaction is a whole other issue).
Initialy it seemed to be the gear that moved the tray, as some plastic gear teeth fell out when opening the box. I found info on the problem with the gear for the CDM9 transports and got myself a new gear for the player, optimal grease and instructions from Arcam on how to take the player apart to replace the gear.
I replaced the gear and now the tray functions flawlesly. However I now find myself with another problem. The motor does not seem to spin the disc. I insert the disc, press play and the motor seems to try to spin (makes a fraction of a turn), the laserhead moves in to read the disc, and then it all stops and I get an "Err" message on the display.

I assume its a problem with the motor not spinning the disc, but maybe someone out there has encountered a similar problem and found it to be something else.

I tried it with diffirent discs, including MFSL "gold" discs, so its not a problem of faulty discs, in any case I would assume that the disc has to spin for the head to read the TOC.

On ebay I can only find CDM9/44 transports for sale, no CDM9 pro (/65), so if there is an alternative to hunting down a transport, that would be great.

Can anyone point me in the right direction (towards either finding a CDM9/65 or another possible cause to the problem)?

Thanks in advance.
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Old 29th September 2010, 12:44 PM   #2
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Hello,

I have an Arcam Alpha 5 plus with the same transport (cdm9/65) and last few days I have experienced the same problem - insert disc, press play but when motor tries to spin cd it fails and gives the error message "Err" in display.

Any success in solving the above problem?

What I found out is that if I manually help the cd to start spinning the cd will read for me, so my idea is to replace the motor or maybe try to refurbish it somehow. I located the serial on the existing motor, RF-300C-11400, and it seems like I can order a replacement on e-bay. Anyone did something similar before and can offer some advice how to perform a dismantle of the transport?

Thanks, Andreas.
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Old 29th September 2010, 08:45 PM   #3
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Are there any signs that the laser is trying to focus first ?
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Old 29th September 2010, 09:24 PM   #4
poynton is offline poynton  United Kingdom
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It sounds to me that the motor is a little stiff (if it can be started by hand)

Maybe a little careful application of a penetrating lubricant may do the trick


Andy


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Old 30th September 2010, 06:52 AM   #5
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Thank you for the quick replies. I will check further about the laser.

I managed to dismantle the transport and take out the motor. I ordered a replacement motor anyway since it was very inexpensive, but while waiting for the new I will try to add some lubricant to the existing one.

Andreas
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Old 2nd October 2010, 12:27 PM   #6
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observe also this thread:
Compact Disc Motor and Turntable - Advices for Replace and Motor Service wanted
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Old 4th October 2010, 10:15 AM   #7
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Solution found!

Tried to lubricate the old motor but with no success so I decided to wait for my replacement motor that I ordered. I received the motor with post today from www.cdlens.com and I must say I'm impressed with the service they offered, quick replies on questions and fast delivery (Poland to Malta in just a few days time). They had two very similar motors, I needed the one with the spindle length of 6.2 mm, not the one with 10mm.

So I mounted the motor and voila! CD is working again. Thanks for thread above, I found the part about distance between lens and disc most useful.

Thanks for your assistance and for a great forum!

-Andreas
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Old 3rd March 2013, 05:12 PM   #8
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cheers!

I have the same issue with my CDM 9/65 - I've replaced the gear, cleaned the laser and turned on Aura cd50. The tray is working now, but every time I put in any cd, I get an Errr on the display. The laser is ok and moves and the motor spins. One thing that wasn't mentioned here is that it makes 1 or 2 turns and then it rapidly spins in opposite direction. However if you slightly hold the cd or the clamp above, it reads and plays fine. Is it the same motor issue?

I removed the plastic clamp to remove the motor and was a bit confused with metal stick (outlined with red color, pls see att). Anybody knows what it's for and how should it be assembled now?
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Old 3rd March 2013, 09:04 PM   #9
poynton is offline poynton  United Kingdom
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I, too, was confused by the metal stick !!

I think it is a 'friction' device to prevent the platter from moving on the motor shaft.

After much time spent trying to replace it, I gave up.

I threw it away !!

The motor worked perfectly without it.


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Old 4th March 2013, 07:27 AM   #10
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thanks! Then I'll order the replacement motor, hope it would be alive again
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