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Beosound 9000 acting up possible bad laser?

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DeLorean18m
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Valencia CA USA
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DeLorean18m posted on Tue, Aug 6 2019 11:30 PM

I have a Beosound 9000 MKIII 2573 type manufactured June 2005.  I had it for about a year now, obtained it from a seller that took good care of it.  Recently it has been acting up.  after about 3 minutes of playing it will stop playing.  and eventually the spindle motor will stop too.  not immediately like it does when it switches between discs.  it will make a sound like the laser head is trying to find its place on the disc too.  After it stops I can start it again and play maybe 1-3 tracks before it goes out.  also the further out the track is, the more likely it is to keep searching for its place on the disc, eventually stops playing and the spindle motor will slow down to a stop. 

I took a cotton swab dipped in alcohol and cleaned the lens from the side and used an air can to clear dust from the surrounding area.  and it still acts up.  I did notice an improvement when i cleaned the lens because prior to that it wouldn't even play beyond a minute or so.  so I'm making progress by cleaning it up a bit.

I'm an electronics engineering tech, I have the service manual but I am kind of paranoid about taking it apart because it don't want to ruin it.  In the past I tried to remove the rear to get a better look but its being held by grounding points.  are they soldered on or can i just pull the rear cover straight upwards after removing the torx screws?

I will run TM 27 on it to get a reading of what the problem is.  then of course TM 71 and 73 to set it back. 

Is there any advice I should know before I go in to take apart the sledge in order to get access to the CD mechanism from the front?  I will follow the directions in the service manual.  just want to know if anyone with experience in this has some pointers, as what i should or shouldn't do when doing this.  I already have a ESD mat and strap setup on my work bench.  And finally if I end up having to replace the laser with a VAM 1250 lens assembly is there any advice i should know. I already know there are many fakes on ebay that don't work properly.  So when I do get one i will probably get a proper one that is a bit more expensive.  Are there any recommended sellers currently online?

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DeLorean18m
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Valencia CA USA
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Ran tests modes and I keep getting error code 2 and 3.  Focus and radial werrors 

DeLorean18m
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Valencia CA USA
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Does anyone know where to go to get a quality laser assembly? there are different variations and there is one specific to beosound 9000 with diodes on the side.  but every one ive found online are for other applications or fakes.  If i go through a B&O dealer do they sell just the laser or the whole assembly?

marexy
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If i'm not mistaken..

for MK1 and MK2

Original  NEW laser assembly for BS9000 are no longer can be purchased.

Maybe some new old stock but...very very hard to find.

I can not say the same for MK3 but,  can be just like that.

So..only way if fake or maybe here some guys know whre to find propper item that works.

Can you take photo of laser head ?

 

 

 

 

Peter
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Siemianowice Sl., Poland
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Peter replied on Thu, Aug 8 2019 12:39 PM

DeLorean,

If you will follow service manual you will get to the laser lens easily, without any problems ( only clamper arm connection is a little tricky as the holder goes thrugh the arm, please look on it when disassembly). When disconnecting ribbon cables, please clean them with alcohol too.
I also wash the clamper with a liquid soap .

After cleaning please run TM 71 and 73 as they are very important. Please also look on your CDs as they may have some dirt as well.

If the laser has to be replaced, you don't have to replace whole VAM, just the laser. I can't tell you where to buy a new one ( there are places like JusTone or av-repairs with expensive ones, probably genuine) I have purchased a second hand Marantz DR4050 where player has exactly the same laser.

 

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