Replacing a CDM9/65 laser unit

[Sarion]

Hi everyone!

I have a Rotel RCD975 cd player, and it is skipping on some CDs. Seeing as the player is quite a few years old now, I may want to replace the laser unit. The unit originally in this player is the CDM9/65, but I understand this is not available anymore. I can however get a CDM9/44 unit.

Does anyone know if this unit will work in my player? I`ve searched the forums and the Net, but have not yet been able to find any more information!

Thanks in advance for your replies!

Best regards!

[Cobra2]

It seems that the laser-part is the same on all CDM 9...but the mounting/housing/tray may differ.
So I think you can do the same as I did with a CDM 4....:
http://www.diyaudio.com/forums/showt...043#post273043 *

Maybe worth checking...?

Arne K

[jean-paul]

I have a spare CDM9/65 and a CDM9/44 ( one is new in box, can't remember which one. Both are original Philips ). I have to warn you that these are very expensive. It may be more convenient to buy a cdplayer with a good working CDM9...

[Magura]

Out of curiousity...how expensive and where to buy??

Magura

[Sarion]

Thanks for your replies!

I`ve found out that CDM9/44 laser is available for about 50 euros, new: www.n-tronics.nl

The /65 is a different story however: can`t find it anywhere! Well, except from the above post, of course!

How much would the /65 cost, Jean-Paul?

Has anyone ever tried to replace a /65 with a /44???

Best regards,

Berend

[Twilighter]

Hi I have bought a cdm9/65 drive for a little above €100

My mechanism for loading the tray has broken down so I have never used the spare part cdm9/65

I bougth a Teac VRDS T1 instead ..

[capslock]

I have a Philips CD-931 with a CDM 9/44, I believe. I originally attributed the skipping to the disastrous decoupling and grounding, but that was only temporal remedy. In the end, a drop of oil on the ball that the arm pivots on was the cure.

[Sarion]

Originally posted by capslock
I have a Philips CD-931 with a CDM 9/44, I believe. I originally attributed the skipping to the disastrous decoupling and grounding, but that was only temporal remedy. In the end, a drop of oil on the ball that the arm pivots on was the cure.

Interesting! The skipping mostly occurs at the very beginning of CDs, I think that it may indeed have something to do with lubrication/friction.

I`ll try and lube the ball. Does this mean I have to open up the laser unit? If you could tell me where to lubricate? I added a picture of a unit.

Thanks!

Berend

[Sarion]

Here`s a picture of a cdm9/44:

[jean-paul]

Just checked. The 65 is a practically new one ( from an unused cdromplayer, yes they existed ) without box and the 44 is new in sealed box.

Try to lubricate first. Turn the unit upside down to see where the ball is. There were hints about what oil to use in older threads. I think it was automatic gearbox lubricant IIRC. Never did much with CDM9 so don't ask me. I use light oil on other CDM's but only if it is really necessary.