BEOSOUND 9000 TICKING SOUND WHEN PLAYING CD's

I have a MK 1 Beosound 9000 mounted on the  vertical stand. The rear position springs are set correctly for the vertical position of the device.  A few years back I had the CD mechanism replaced and playing CD’s was never a problem after that.  For several months I have not used the CD at all, only the AUX input.

I recently started to play CD’s again and I have a ticking/rubbing sound coming from the CD mechanism when it plays.

Moving the sled/carriage from CD position 1 to CD position 6 is silent…no rubbing on any of the CD’s as the carriage  moves.

It does not occur on all CD’s, but most of them.

If I find a CD that plays without the rubbing sound, it will play in all 6 positions correctly. A CD that makes the noise  produces the noise in all 6 CD positions.  

All of the CD’s have been in their cases are flat (using a steel ruler), not warped in any way. I wonder if the thickness of a CD could be an issue if an adjustment is just slightly off ?

I am not sure it would make a difference, but when the CD rubbing/ticking noise occurs, I have tried moving the lighted part of the carriage up and down and in and out, but the rubbing/noise does not change.

Can anyone shed some light on this or point me in the right direction to troubleshoot it ?

Could the rocker arm be slightly bent, or would that only cause noise as the carriage/sled moves ?

 

Thanks for any help or direction.

 

Mike

Hi, please run testmodes 71 and 73 first and see if OK

The CD mechanism used to come with the suspension kit which had to be replaced too. Are you sure this has been done? Even so, the springs may have expanded since then.

May need to be replaced again as the adjustments rely on the springs...

I ran test 71 and it completed OK.

I then ran test 73 in all CD positions.

Problem with the ticking sound is still  there unfortunately. 

I am pretty sure that this suspension kit has not been replaced.  It looks like just the Cd mechanism was replaced when it was repaired.

Does this kit have a number (is it still available ?) and is it replaced from the back or the front ?

 

Thanks Mike

 

Hi Mike,

The last time I checked on those parts I was told they were no longer available.  You can access them from the bottom after removing the bottom cover. It would be a little tricky to replace them with the CD mechanism in place, but with some patience it can be done.

Given that some CDs play fine, it may also be the clamper arm adjustment that's just a bit off. Have you verified that the clamper is level front to back and left to right? If you look at it from the front it should be level left to right. Looking at it from the end of the unit it should be level front to back.

There are two adjustment screws at the rear of the clamper, you need to remove the glass to adjust them.

When these units are mounted vertically the orientation screws (on the back) will put the most strain on the two little suspension springs. In that position, the 2 rear CD mechanism slarge prings are also at max compression, which can cause the front (leading) edge of the CD mechanism to be tilted up just a bit. Check to make sure your CD mechanism is level. That's a little harder to do but I've used a small mirror and flashlight to see it better.

Sometimes these issues can be resolved without a lot of effort or any new parts.

Good luck!

Bill

Hi Bill,

Thanks for the help on this. I will check the adjustments as you suggest. 

 

Thanks again.

 

Mike