Leslie wrote:

As you might know I'm in Sofia next 2 weeks and meeting another member. Maybe you could join?

And probably visiting a friend (Spiros, old member) from Thessaloniki in the weekend.

I will have to travel to Blagoevgrad and Banite to install a multimedia system to museums. I don't know if it will be ready  next weakend, but if you are going to stay in boulgaria for 2 weeks, we will manage to meet.

And I know Spyros (Thessaloniki has more than 1.5 million people - but I know him - I met him in his office about a year ago, because of B&O). So we will absolutly meet. And tommorow I will distill my own tsipouro (an other kind of spirit-similar to ouzo) so, drinks on me!

Leslie wrote:

Not sure how I can help you but if you have some technical knowhow maybe I could help you with exchanging boards

actually I am en electrical engineer, but I am specializing in multimedia software, so I am more software than hardware oriented. Anyway I thing that I will be able to follow instructions. Thanks pal.

Ok, let's PM from now on regarding my Bulgaria/Greece visit.

npac wrote:

Yes I am quite lucky when it comes to ebay. Let me give you an example. I also collect retro computers, and the last item I bought was an Acorn Archimedes from 1989. The seller sayed "Computer boots up to comand prompt but cannot get hard drive or floppy drive to work. Suspected power supply failure or similar"

Nice to see another B&O user with a collection of  Acorn/ RISC OS machines. I'm currently using a Kinetic RISC PC Running RISC OS 6 :-) I've had many Acorns in the past inc. an A3010, A4000, A5000, RISC PC 600, StrongARM RISC PC and Iyonix. They are wonderful machines if you can accept a few limitations when it comes to web browsing and video playback. Although with RISC OS Open and the RasberryPi and Beagleboard etc who knows what the future holds....

Lee

Lee,

Acorns are wonderfull machines and I think that the world would be a better place with risk os, rather than with windows (sorry Bill). I thing of making a rasbery pc for running risk os. But regarding computers, i mostly collect old macs and my beloved 8 bit Ataris. Some say that the design of atari 800XL resamples the design of beomaster 1900...

I've just checked one of mine, and found that a minor click can be heard from the Beosystem 2500 if the "mute" button is pressed - do You hear this sound if You press the mute button? If not, then that's the problem, the relay does not work (can be a real shipping problem) and therefore is the Beosystem in forced muted stage.

I also suggest to check the panel volume buttons - DOES the volume screen changes? If not, then there is some problem with the panel, maybe a cable is disconnected, wrongly connected after the shipping.

And mostly - do You hear ANY minor difference in the headphones when You change the volume or just the very same low level noisy sound?

Thanks for your input AT and for your time. I can't hear a slight click on my beomaster when I press mute. The red led in blinking, so the buttons are wolking, but no click sound and no indication on display (I don't know if yours display "MUTE" when you click the mute button).

But are you sure the the click is from the beosystem and not the beolabs? The beolabs have relays, as I have seen when I opened mine. Are your beolabs close to beosystem, so the "click" you hear comes from them? Can you try to disconnect the Beolabs and try again to hear the click sound from the mute relay? This test can be very helpfull.

When I press the volume buttons on the panel, the red light flashes - but that's all. Nothing changes in the display - the display works, displayes CD & track, or Radio and frequency, and everything else, exept from volume information. And the whispering sound is not changing not even slightly.

"But are you sure the the click is from the beosystem and not the beolabs?"

You are right, mine is on the wall, and it just sounds as the Becenter clicks, but the sound comes from the Beolabs. Sorry.

"The red led in blinking, so the buttons are wolking, but no click sound and no indication on display (I don't know if yours display "MUTE" when you click the mute button)."

No, there is no "mute" message, however the volume level is displayed as "Vol: __" and after the next press of the "mute" button the display changes back to the actual volume, ie. "Vol: 42".

"Nothing changes in the display - the display works, displayes CD & track, or Radio and frequency, and everything else, exept from volume information. And the whispering sound is not changing not even slightly."

I have a real-real bad feeling.

Maybe You have just received an MPAV9000 against to a Beocenter 2500.

Please refer to this article:

http://beocentral.com/masterpanelav9000

As this is the only thing I can imagine, how can it be, that there is absolutely no volume control on a Beocenter 2500 look a like B&O system - except if there is a total strange panel failure.

I tried a lot to simulate Your situation, even transferred the sound from the Beocenter to a non existing output (A/V function). In this case the noisy sound appeared, however it changes the level AND in the meantime the display shows the actual volume. And if I press the source again, this feature is cancelling. Also, if I know well, the Beocenter 2500 was never equipped with a Masterlink, so I think it's not possible to transfer the volume control forcefully to a different B&O system.

I think, You should check what You have just received, as it's possible that not even the seller recognised, that this system is not a BC2500 but an MPAV9000, mostly if it was removed from an AV9000 system, where it was really worked fine.

And, just for fun: If I know well, as an MPAV9000 is not able to control the Beolabs, so it's possible that both Beolabs are working fine, and these are simply unuseable with this system. So maybe You received a wrong Beocenter but perfect Beolabs...

I hope, this helps You, or at least we can be sure that we talk about a Beocenter 2500.

Dear AT. Greatings to Budapest.

Thanks a lot for your time and consern. Your MPVA9000 theory is interesting - however I think it is wrong. OK the front panel has a "BEOSYSTEM 2500" label, and so says the little paper with the serial number on the back. OK, these can be fake, but MPVA9000 has a masterlink connector and not powerlinks for connecting the beolabs. In my case, the B&O has powerlinks and does not has masterlink - so it can't be MPVA9000.

Your theory may be partialy true in the case that the beosystem broke and the person that serviced it used the microprocessor board of a MPVA9000. The system partialy worked so the owner tried to sell it through ebay.

But this asumes that the seller is a big lier. He was even asking for byuers to pick it up from his home, after checking it - this is not something that a cheater would do.

So I thing that we still have a Beosystem 2500.

Dear Npac,

Thank You for the kind wishes :)

I don't intend to suggest that the seller is a liar.

I had just an idea why the volume control (and IMHO the "Sound" button) doesn't work at all on Your system as it's a very unusual problem, I never heard that a Beocenter doesn't show the Volume options on the display but everything else is working fine.

The only thing I ever seen with a Beocenter - which can be a clue for this case - is the RDS panel. As You might know, the installation of this board is very easy, You need to connect the RDS panel's regular cables, but no additional setting is required, the Beocenter detects it, and the RDS names are just appearing on the display if You press the "Radio" button for three times.

For this reason - I think - the "motherboard" looks for the built in circuits (fe: "Am I 2300? Am I 2500? Am I MPAV?), and it will use the existing ones, and denies the missing/not answering ones, so if the "motherboard" is not able to communicate with the volume control circuits, it will deny all the options for the volume control. I'm NOT familiar with these circuits, but it's possible that the problem is, that a connection is broken, or a cable connection was damaged, or lost the connection.

I think it worth a look inside the Beocenter is all connectors perfectly connected.

Unfortunately, I have no more idea on this case :(