Heras,

Taking into account everything you have said and the instructions you have followed from Graham, it looks to me that the "Loudspeaker Relay" signal on pin 4 of the Powerlink cable is not true meaning the speakers will be muted.

The Powerlink cable wiring diagram is below

The powerlink "Loudspeaker Relay" signal could be not there because of one of the following reasons:-

• You are not using the correct full wired Powerlink cable.
• You have a jack plug in the headphones socket which switches off the Powerlink "Loudspeaker relay" signal
• Transistor TR2 on PCB60 has a collector to emitter short which would allow the speakerlink to work, but not the powerlink
• One of the speakers is holding down the "Loudspeaker Relay" signal

Given, that you have stated that the Beocentre 9500 works perfectly with speakerlink and you appear to imply that the speakers have worked using powerlink elsewhere, then at this stage we must assume the most likely area of the fault is either:-

• The Powerlink cables
• A fault on PCB60 in the Beocentre 9500
• You have a plug in the headphones socket or the headphones socket is faulty

Given that you have said that the dealer has checked your Powerlink cables, how did he check them, with a meter ? or plugging them into a piece of B&O kit in the shop ?

Plug a headphone plug into the socket a few times in case the socket contacts are damaged.

Hi Keith Saunders,

You've solved my problem!!! Thank you so very much! 

After having used the headphone out to power my other amplifier (I didn't have a speakerlink cable the first night, and was dying to listen to the 9500) the big jack to small jack convertorplug remained in the socket! I hadn't noticed it, because it really looks like it's part of the design (and I had a great deal of trouble getting it out).

Brilliant! What a sound!

So now I can get back to loving these extraordinary pieces of equipment / art to death! :)

Best regards!

Heras

Wow, when I first read Keith's suggesting about the headphones, I thought "wouldn't he realize if he had the headphones plugged in?"  I hadn't thought that you could have an adapter plugged in.  Many times people will leave things like those adapters plugged into sockets on newer digital stuff like computers, and be fine since the computer only sees whether something's plugged in electrically.  But on this B&O stuff, there's actually a physical switch inside the socket that mutes the system when something's plugged in.  Well done Keith.

Austin 

Hello lovely people! 

This afternoon I posted another reply, but something must have gone wrong because I can't find it anymore. I'll do it again, late, but it's pretty much the least thing I can do to thank Keith!

When the problems happened, and when I tried everything suggested (thanks!) I was kind of sure I did something stupid, but couldn't find out what. I've learned about the switches on the side I had never noticed before, I learned about the cables, and immediately went out to test them. The next thing I did was trying to "relive" what I had done to the equipment and connecting it by using the phone out was one of the things I thought about.

But I just took a quick look at the 9500, and for sure there wasn't anything connected to the headphones out.

I thought.

I used a convertorplug to connect my amplifier, and didn't noticed that it stayed in the headphones plug when I disconnected it. It looked as if it was part of the design (and it's been very tricky to get it out as it fit perfectly, I really had to "fish" it out).

Sometimes you need someone special like Keith to tell you to check something twice. Something you know you did right. And didn't.

I'm enjoying my B&O equipment like I should now. And I adore it.

Keith, thank you again, and again.

(and over and over again :)

Heras

Jeff, I have to emphasize that!