BeoSound MK III, CD sledge moving very slow

[Severed_hand_of_skywalker]

Perhaps take another shot at cleaning the laser that detects the open door.

Location: Toronto, Canada

[KolfMAKER]

Thanks for your reply and advice. I have done so. In fact, I have even done some more cleaning by carefully using compressed air. Also near the CD-sledge.

Unfortunately , there was no effect. I still see the ‘Cleaning Required’ notification in the display.

Reading the Service Manual and the possible test modes, I decided to do TM71: Mechanical test of ‘Finger Protection’, sledge and led. I have CD’s  loaded in positions 6, 5, 4, 3, 2 but no CD in position 1. Here’s what happens (looking at each step of this test):

• Glass door opens = Correct.
• Glass door closes = Correct.
• Sledge moves slowly to CD6 = Not Correct.
  • Display shows: Cleaning Required > CD1 > Load CD.

In this step, the sledge moves about 2mm down from position 1 (like in normal use), but then doesn’t do anything.
So here the test ends/does not continue for all other steps. (All others are listed underneath)

 

Question:

• What is wrong, and what next step should I make?

Remaining steps of TM71, not executed:

• Sledge moves Quickly to CD1 =
• Sledge moves Quickly to CD6 =
• Glass door opens =
• Sledge moves Slowly to CD1 =
• Sledge moves Slowly to CD5 =
• Sledge moves Slowly to CD1 =
• Sledge moves Slowly to CD4 =
• Sledge moves Slowly to CD1 =
• Sledge moves Slowly to CD3 =
• Sledge moves Slowly to CD1 =
• Sledge moves Slowly to CD2 =
• Sledge moves Slowly to CD1 =
• Test finalizes in position 1, with the glass door still open.

Location: The Netherlands
Favourite Product: BeoSound 9000

[KolfMAKER]

SOLVED

I must admit, I had real doubts about this issue, whether they would be caused by dirty glass door sensors or glass. Especially since the CD-sledge showed a hick-up when trying to move from position q1 to any other CD position. Therefor I was thinking about some mechanical disruption in the movement area of the CD-sledge.

Nevertheless, I decided to once more do a thorough cleaning of the 2 prisms, the whole aluminum surface area, and the glass door (inside & outside). After that I ran TM71 in the Service Mode …. And yes, the ‘Cleaning Required’ notification has gone, and all movements of the CD-sledge are back to normal. Also no more hick ups when the CD-sledge starts moving from position 1 to any other CD position.

So my lesson here, cleaning has to be thorough cleaning!

@Severed_hand_of_skywalker: thanks for your advice. It did do the trick.

 

Location: The Netherlands
Favourite Product: BeoSound 9000

[Severed_hand_of_skywalker]

Glad it worked out.

Location: Toronto, Canada

[KolfMAKER]

Thanks again!

Location: The Netherlands
Favourite Product: BeoSound 9000

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