The centering is a parameter in the service menu (H-PH if I am correct); but I assume that the service people from B&O have tried to set this value correctly.

Do you have any more information about what they tried to do to fix the problem?

Regards,

Bieele 

Patrick,

Whilst there is an adjustment for centreing the picture, if the problem has just occured, then it is not an adjustment problem.

So, has this problem just occured ? or has it been with the AVANT since you first owned it ? Also which version of AVANT do yu have the problem with.

If the AVANT was previously working correctly, then most likely is a fault in the circuit which defines exactly the picture information starts to be displayed on each scan cycle

So, the problem has been with the AVANT since the tube was replaced and I am assuming the problem did not exist with the old tube before it blew or may be you did not notice.

Given what you say, the most likely cause of the problem is going to be with the scanning assembly which sits on the neck of the tube and magnetically deflects the tube beams or the service engineer failed to correctly set the Horizontal Centre Switch marked in the service manual as 5S1 and can be found in location 7E. This is a physical multi position switch and nothing to do with the software setting via the service menu.

I am assuming you are not a technical person who could investigate this yourself, so I suggest you call in the B&O service department again and direct them to the above switch adjustment.