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Vintage Audio (record players, hi-fi etc) Amplifiers, speakers, gramophones and other audio equipment.

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Old 14th Jan 2019, 9:38 pm   #1
Michael Maurice
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Default Beosound Ouverture

I am repairing one of these with a CD fault. It uses the CDM12 laser. The fault was that the CD would not even spin up, I have replaced the laser with one that has the chip, not the copies, I've also replaced the two capacitors on the board 330uF and 100uF. I found the flexible cable to the motor broken so I carefully repaired that.

Now the CD does spin, but not fast enough and after a few seconds it stops.

Can anyone help me?
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Old 14th Jan 2019, 10:54 pm   #2
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Default Re: Beosound Ouverture

Spindle motor faulty?
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Old 15th Jan 2019, 9:25 am   #3
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Default Re: Beosound Ouverture

When my Technics CD started doing this I put a drop of oil on the spindle bearing. 19 years later it's still working fine!
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Old 15th Jan 2019, 1:59 pm   #4
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Default Re: Beosound Ouverture

I discovered that there are several versions of this basic drive. Granny sucking eggs here, but please make sure you have the right one...
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Old 15th Jan 2019, 3:17 pm   #5
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Default Re: Beosound Ouverture

Quote:
Originally Posted by Nickthedentist View Post
Spindle motor faulty?
My first thought too, Nick.
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Old 15th Jan 2019, 8:10 pm   #6
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Default Re: Beosound Ouverture

The 'one with the chip' i the CDM-12.4 (VAM12.4) and I have had 0% sucess rate with the Chinese copies available from various places.
The one without the chip is the CDM12.1 (VAM 12.1) and I have had limited sucess with these.
The two are not interchangeable so if the original didn't have a chip then fitting one which does will not work. Your OP reads as though you have fitted the one with the chip in replacement for the one without, if I make sense !!

I have had these 'new' copy Lasers to have 'incorrect' (certainly different from the one being replaced) Platter Height.
Correcting this sometimes cured the problem with the new Laser.

Sorry, I can't be more help. I am starting to have to give up repairing CD Players of this sort of vintage for the lack of original spare parts. The copies just not being reliable enough.

James.
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Old 16th Jan 2019, 12:06 am   #7
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Default Re: Beosound Ouverture

Just to explain, both the original and the replacement both have the chip, I wouldn't have fitted it otherwise.

It was just the laser that was replaced, not the spindle motor or sled mechanism.
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Old 16th Jan 2019, 12:06 am   #8
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Default Re: Beosound Ouverture

Quote:
Originally Posted by wd40addict View Post
When my Technics CD started doing this I put a drop of oil on the spindle bearing. 19 years later it's still working fine!
Try getting to the bearing though, I dont think the turntable comes off very easily.
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Old 16th Jan 2019, 12:43 am   #9
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Default Re: Beosound Ouverture

On the Technics there was a small gap between the platter and the bearing. I think I dipped some fine wire in the oil then carefully used it as a dropper to apply.
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Old 16th Jan 2019, 10:16 am   #10
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Default Re: Beosound Ouverture

Might try a hypodermic needle
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