Beosound 3000 CD ‘locks up’ and unresponsive

[LukeS]

Hi all, I’ve posted a couple of times recently about a BeoSound 3000 type 2672 (small clamper) I’m fixing up. I bought it cheap with a set of Beolab 4000s I was after, and this was almost a freebie! It was quite beat up but all the functions worked fine aside from the doors not opening.

Since having it I’ve overhauled the door mechanism, with a new belt from Dylan, re foiled the front plate which was very scratched up around the clamper, and buffed scratches out of the black plastic side panels. All in all it is quite presentable now, and the doors operate smoothly and precisely. I’ve also updated the software from SW1.0 to SW3.4 as I needed to set it in A.Opt6 for my setup, as well as being able to access N.Music from the main system.

After a quick test I thought I was all done – all functions seemed to work fine. I then connected it to the Masterlink and started testing the local and link sources, when all of a sudden the CD has stopped working: Now when I select CD (off the front panel or the Beo4) the display show ‘CD’, but it does not spin or play and the unit ‘locks up’ – it wont respond to any button presses or the remote, and I can’t change source or even power down. I have to disconnect from the mains to restart the system. All other functions and sources work fine – it’s just the CD that is causing problems.

I’ve cleaned the lens with alcohol and still no joy; I’m guessing I’m going to need a new laser? I’d be grateful for any advice before I start replacing parts!

[billbriscoe]

Hi,

Did you disconnect everything from power before plugging in the masterlink cable at the BS3000? I would suggest trying the BS3000 as standalone again, no masterlink connected.

See if that makes any difference first.

[LukeS]

many thanks for a good suggestion- unfortunately when operating stand alone it’s exactly the same

[billbriscoe]

have you looked down into the masterlink socket on the BS3000 to check for dust, lint, or some other foreign stuff, and to make sure no pins are bent/touching?

[Guy]

Have you gone into the ‘Test Mode’ and looked for fault reports?  Worth a look, and if nothing shown you could always try a ‘reset to default’ to see if that fixes the problem.

[LukeS]

Thanks all – I’ve entered test mode and looked at the readout under option 27, which does indicate a CD focus error. All the other elements are ok.

I can’t enter CD test mode as pressing CD locks up the unit as usual.

looks like I need a new laser ?

[matador]

No, you need a laser deep clean.

[Beobuddy]

Put back the original software. The communication between drive and upc doesn’t work.
Whenever the laser is not focusing, the clamper will open. Yours doesn’t respond anymore, so it has nothing to do with the pickup element.

[billbriscoe]

I also think this is a communication issue. I would double check the flat ribbon cable connections between the chips and the board, and check the cable connections at the cd mechanism as well just in case something was disturbed while you were changing the door belt and updating the software. If those are all properly seated then I also think it’s time to try the original software and see if that gets the unit back to where it was before. In test mode, clear all of the error codes first and then see what comes up.

My BS3000 battery leaked onto the board it’s mounted on and etched some of the traces beneath the battery. I had to replace the board and battery and now it’s back to normal operation.

[LukeS]

Thanks all – I’ll try that and report back – thanks for all your help

[matador]

matador wrote:

No, you need a laser deep clean.

Beobuddy wrote:

it has nothing to do with the pickup element.

In fact, I was surprise by the lock up behavior: I’ve got a BC2300 with bad laser and it spins, stops and stay like that, I dont hangs. But I post this anyway after the test mode report.

Thanks for correcting me and sorry to the OP.

[LukeS]

Dear all – many thanks for all your help so far

I’ve put the original software back and the CD works again. So it seems the issue is comparability of SW3.4 with my drive or some other software element. As I said mine is type number 2672 – do I have any hope of getting it to work with the later software? As I say it really has to allow option 6 to be of any use in my setup.

[Guy]

The service manual has a couple of paragraphs about precautions to take when changing the microprocessor and/or EEPROM modules (eg waiting 20-30 secs after connecting to mains before operating etc). Did you observe all the guidance?

[Foxtrott]

A little detail that I remember from when I had a BS3000 MkI (with the small clamper). At the time the MkII version with the large Clamper was already available:

My MkI was a very early one (bought it preowned from a dealer at the time) and I had the software upgraded to make it N.Radio ready. If I remember correctly SW 1.34a was the newest one available for MkI at the time. The service Center in Vienna gave me the information that the MkII sofware EPROM (with a higher version number) was incompatible with the MkI Bs3000.
Other than the large Clamper and the grey front, there were some internal difference between MkI and MkII. For example MkII had PIN-Protection (the MkI not).

So if in the OP-case the MkI works again with the old SW chip, it might show that there are indeed some compatibility problems between MkI unit and MkII sofware.

Just a thought…

Cheers
Foxtrott

[LukeS]

Thanks again Guy – I can confirm I followed all the procedures in the service manual. I repeated the swap to test, giving a couple of minutes before selecting a source with the same results.

It seems Foxtrott might have the answer – the 3.4 software may simply be incompatible with my system, which is a small clamper model, but with the linear rather than radial arm cd system.

thanks all for your help. Looks like I’ll be selling it. Shame as it is a nice little stereo!

[Author]

Posts