Julian,

As you will see from the diagram of the signals below, your wiring error would make the driver in the Beomaster try and drive the driver in the Beogram, however as these are almost certainly "open collector" transistor outputs little damage is likely to be done on these lines and therefore you should get sound. However, when it comes to the datalink it will be a different story. There are two datalink lines because this provides for two way communication and one or both datalink drivers could have been blown.

I do not have access to a circuit diagram for a Beomaster 3500, but I have looked at the circuit for a 6500 which has the same basic sockets and from the circuit diagram I can see that the datalink lines are clamped to 0.7 volts by 4 diodes, then the signal goes into the microprocessor, so you could measure with a multi-meter the DC voltage at pins 6 & 7 on the Beomaster without the Beogram being plugged in.

You do not say if you have other sources plugged into other sockets on the master, but if you do, are they working correctly which I think unlikely ?

Julian,

Most B&O stores charge an hourly rate which is fairly usual, so your hourly rate may be a little high, but many will charge above £65 per hour.

Clearly your problem is fixable, but the cost is very much going to depend on what has be blown.

Also, if you know someone with a similar system you could always plug your Beogram into their master...

thanks again keith, i know they charge an hourly rate, but two years ago in worcester b&o it was £40 still cant afford the £85 now for a system that cost me £200 inc 2 redlines and a beolink 1000.

i do have a beosystem 3000. tried to link the cd3500 to the master3000 and used the 3000 terminal to try it (in a rush) the beocoed3000 tape deck still turned on whichi found odd, as it wasnt connected, but didnt try by pressng the butons on the master will try later tonight.

i do also have a beomaster 5000 beocord 5000 and a beogramcd6500 and also a beocenter 9000 ( 8 beovisions and 5 beocord vcrs)

i was hoping tobe able to be able to fix it myself as i really an afford £85 for someone just to look at it and i havent long bought it. i would need a lot of advice though and need to know what needs to be replaced and where could i get a replacement, if i can get a replacement.

not even sure if its the beogramcd3500 that has the fault or the beomaster 3500 that has it i could buy another of either at a stretch but not both at the moment. also always seems a waste to me to discard any beocomponent?

thanks again keith will check what you said later and let you know. any more help would e much appreciated

Hi Julian,

I hope you found a satisfactory solution to your problem as I recall our conversations about the matter when you phoned my shop - Shrewsbury.  I have only just caught up with this forum posting and am saddened to hear of your opinions regarding the charges for servicing - particularly when we explained that the £85 was in fact a call out charge for an engineer to come and visit you at your convenience at home and would include an hours worth of his time as well.  Obviously, the half an hour I spent on the telephone and the subsequent research I undertook to try to assist you with your query were all carried out at my expense, but that is the level of service we provide to all of our customers, whether they bought the product in question from us or Ebay.

What I probably didn't mention is that we, like many stores, have to employ the services of third party engineers recommended to us by Bang & Olufsen.  Unlike many stores, we put the engineer in touch with the customer directly if we feel it to be appropriate as this is often the most cost effective way for the customer to achieve their desired result.  We make no money on our servicing despite the often lengthy processes involved to establish the best course of action.  I'm sorry that you found this solution unacceptable, but more sorry that you felt the need to disparage my efforts to assist you.  

Assuming your system is now back to full working order, I hope you are enjoying the Bang & Olufsen ownership experience, and should you have any need for assistance in the future our door will always be open to you.

Regards

Richard Terry

Technical Director - Bang & Olufsen of Shrewsbury

Dealer of the Year 2008/2009 

Keith Saunders:

Julian,

As you will see from the diagram of the signals below, your wiring error would make the driver in the Beomaster try and drive the driver in the Beogram, however as these are almost certainly "open collector" transistor outputs little damage is likely to be done on these lines and therefore you should get sound. However, when it comes to the datalink it will be a different story. There are two datalink lines because this provides for two way communication and one or both datalink drivers could have been blown.

I do not have access to a circuit diagram for a Beomaster 3500, but I have looked at the circuit for a 6500 which has the same basic sockets and from the circuit diagram I can see that the datalink lines are clamped to 0.7 volts by 4 diodes, then the signal goes into the microprocessor, so you could measure with a multi-meter the DC voltage at pins 6 & 7 on the Beomaster without the Beogram being plugged in.

You do not say if you have other sources plugged into other sockets on the master, but if you do, are they working correctly which I think unlikely ?

As far as I remember the Beocord (Atape1 or 2) uses pin 7 for datalink and Beogram CD or Phono uses pin 6 for data.

It used to be possible to use an excisting Phono (7 pins) socket to attach a Beogram cd player. Only then you had to bypass the RIAA amplifier inside.

For a long time ago I had a beomaster 2000 (upgraded to a 3000 version) with a Beocord 2000 and a CDX-2. The latter was attached to the phono socket and controlled by the master/remote.