ARCHIVED FORUM -- March 2012 to February 2022READ ONLY FORUM
This is the second Archived Forum which was active between 1st March 2012 and 23rd February 2022
Dear members,
I have a Beosound 9000 MK 2, lying flat on a shelf. It seems to work alright. However, I've expericned the following problem:
when I turn the system off then the last CD that has been played turns slower, then speeds up for a short time and then abruptly stops. I would have expected the CD rotation to become continuously slower before the CD is put back in place. However, this is sometimes the case, but sometimes it isn't.
Has anybody also experienced that problem?
And I should note that it's playing CDs immediately and the transport seems fine too. It's just the problem whenever a CD is stopped after being played.
Thanks!
Kai
In fact, it starts spinning the CD in opposite direction prior to stopping. This only happens when stopping the CD. No problems with accepting and playing CDs and transport also works fine. Just when the playing stops, there is this strange behavior. Apparently the drive doesn't slow the CD down properly...
Test Mode 71 is ok. Test Mode 73 yields the following errors: CD Err 2, APS Err 35. APS Err 35 indicates a problem with the optocoupler/tacho circuit. Test mode 73 is abandoned somewhere in the middle.
Since the Beosound doesn't have any problems playing CDs (just removing them) and because it was VERY dirty, I guess the optocoupler/tacho circuit needs cleaning first.
Any other ideas?
I've now cleaned the laser lens in testmode 61. However, I couldn't see any light coming out of the laser in this testmode. Should I? After having done this, the CD Player does spin the CDs but there is no sound and after a couple of seconds the process is stopped. In other words - it didn't get any better...
Kai,
You said the Beosound 9000 is "lying flat on a shelf" has it always been in this position or did you move it, say from vertical position.
Assuming, it has always remained in the same physical position since the days prior to the fault and taking everything you have said so far into consideration and given that you have found how to run the tests and test 73 fails. I would say it appears that the "Auto positioning adjustment" needs to be reset.
To reset the Auto positioning run the tests again and then:-
Regards Keith....
Dear Keith,
thanks a lot. Strange thing is that at first the machine was playing CDs without a problem. It just had the issue of putting it back. But after running some of the testmodes, it suddenly fails to play music from the CDs. However, I can clearly see a red light when the Beosound spins a CD and looking underneath the sledge. I assume this is the laser, isn't it?
I'll try running this test mode again. When I was running this test mode for the first time, it never ran to the end and afterwards the errors from above could be displayed...
The machine was really, really drity. Maybe it's the laser, but I'm not sure...
Greetings,
Unfortunately, the problem has changed: no matter what I do, the machine turns itself to standby in CD mode after a couple of seconds. This happens independently of whether the laser is running or not. It doesn't happen in radio mode, however. Only in CD mode but also not when there is no operation. However, testmode 71 is abandoned for example when it approaches its end. Same happens after about 20 seconds in testmode 73. When I just select CD in testmode so that CD is active but nothing else happens, the machine doesn't turn to standby. Whenever it turns to standyby, it won't react to IR commands until I reprogram the option setting...
Strangely the CDs are now apparently put back in playe correctly. However, only thing that I did is cleaning with a soft dry cloth underneath the sledge and try to clean the laser lens with a slightly wet cotton bud. What can go wrong with such a procedure so that the Beosound turn itsself two standby after a couple of seconds afterwards?
If the Beosound 9000 goes into standby without you pressing standby button usually means the power supply protection circuit has been triggered to protect the unit. The fact that this happens only in CD mode means its possible that some moving part is stiff causing more current to be drawn from the power supply.
You say that the unit is very dirty, well would get the unit completely clean particularly related to moving parts before you continue further.
Thanks Keith. I feel it might be helpful to remove to cover/top of the sledge. I haven't found anything about how to do it in the service manual nor on the internet. So how is the top of the sledge removed?
Edit: I can see now that it's only included in the service manual for MK3.
Thanks so much für your advice!