Beosound 9000 mk3 problem

9 replies
C(
Chakey (archived2)
Bronze
6 posts
Posted September 3, 2019 at 10:21 GMT
#2127404

Hello  I am a new member of the forum. 

I have beosound 9000 mk3 CD player - changer and have this problem, it required cleaning of sensors because it displayed frequently cleaning required , and was working in safe mode, eg. Tray was moving slowly, now is all OK, it reads disks fine except this problem.

When switching between disks every combination works except when switching from disk 6 to 1 device tourn of it loses power and tray slips to position 6 because it has vertical stand positioned so 6 is bottom and 1 top side. Then it turns on and tray goes to position 1 and stays in stand by. If I turn it on it plays disk 1.

If device is positioned laying flat on the table it turns of between disks 2 and 1 and do the same except not falling to disk 6 because of no gravity to do that. 

Does anyone have any idea about solution? 

P(
peterpl (archived2)
Bronze
107 posts
Posted September 3, 2019 at 15:42 GMT
#2127405

Hi Chakey,

please  make sure that the CD drive mechanism is centered according to  it's position (the arrow screws on the back of BS9000 are properly turned),

then please run TM 71 and 73.

Let us know if it didn't help.

Beobuddy
Beobuddy
BronzeFounder
4178 posts
Posted September 3, 2019 at 19:49 GMT
#2127406

TM71 and TM 73 are meant to be used after service. It’s never a cause.

TS has a BS9000 which needs cleaning of the sensor next to the sledgemotor. The BS9000 is placed vertical and dust causes loss of pulses at the sensor. The system get’s confused and stalls. In the meantime power has been *** off and the sledge drops to the bottom. 

The sensor needs to he cleaned but a huge warning: it’s very, very sensitive for static energy and alcohol doesn’t help either. 

Location: Utrecht

Quite a challenge to achieve "Less is More" while having the Beovirus.
P(
peterpl (archived2)
Bronze
107 posts
Posted September 5, 2019 at 14:58 GMT
#2127407

Beobuddy,

how do you get to that sensor ?

C(
Chakey (archived2)
Bronze
6 posts
Posted October 17, 2019 at 17:55 GMT
#2127408

Hi, I finally got a chance to work on the beosound 9000  

CD is in the correct position and it plays CDs without any errors except when you want to switch from CD 6 to cd 1.

I have entered to service mode and firstly read errors with tm23 and no errors were present. Then I tried tm71 and tm73 and got massage wrong src/tm.

What could be the problem not to execute tm71  

C(
Chakey (archived2)
Bronze
6 posts
Posted October 17, 2019 at 18:03 GMT
#2127409

Is that sensor located on the sledge itself or on edge right of cd 1?

C(
Chakey (archived2)
Bronze
6 posts
Posted October 17, 2019 at 20:52 GMT
#2127410

I found where I was wrong. You supposed to select CD before pressing tm71 and tm73. In tm71 I get same error in the start of testing as soon as CD go from 6 to 5.

Now I have errors in tm 27 it says cd error 2 and 1 slg 30.

Any idea?

C(
Chakey (archived2)
Bronze
6 posts
Posted October 17, 2019 at 20:52 GMT
#2127411

I found where I was wrong. You supposed to select CD before pressing tm71 and tm73. In tm71 I get same error in the start of testing as soon as CD go from 6 to 5.

Now I have errors in tm 27 it says cd error 2 and 1 slg 30.

Any idea?

P(
peterpl (archived2)
Bronze
107 posts
Posted October 18, 2019 at 10:11 GMT
#2127412

Marko,

are you sure as to CD error 1 ?

In Service Manual CD errors start from 02  - Focus error ( maybe you could put another disk in pos 6 ? or clean lens ?)

Sledge error 30 means CC sledge pos count error  - a counter error has been registered on the signal from the sledge tacho. It is
registered at 35IC2 pin 1, 44, 5 and 9

which I personally don't know what it means

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