Hagen, I can find nothing whatsoever about returning the LC2 to factory settings. Given that these settings are stored in an Eprom, it may well have been setup outside of the unit prior to assembly.

Richard, Well, with only 1 volt between neutral and earth, that's good. It is also good that your cottage (well some cottage with 22 rooms) has been rewired. Has the Beovision 7 failed since you removed the Masterlink cable ?

The jumper is intended to be in place, its removed for test purposes only.

Whats the status on the stand ?

Below is the circuit you are looking at

Richard, Its not really the voltage drop which is going to cause the problem and it would have to be a big drop to stop the Beovision working, but if it were big enough it is likely it would effect other products as well. Let me explain. All power generated and distributed in the UK starts off as "Three Phase" you must have seen the signs

Based on your "Problem Statement" the problem must be in the power supply section, however I do not have a circuit diagram and without one it is going to be difficult to fix.

Frank, Do you mean J2 which is between P113 pin 5 and R26 ? P114 does not go to a jumper, but it goes directly to P113 pin 6

Richard, After giving this further thought based on your last key statement, I think you either have:- A problem in the "Power Factor Correction" circuit in the Beovision power supply OR; There is a phase lead or lag on your mains power causing a potential difference between neutral and earth. If you have a multimeter set it to the AC range

Richard, You have made an important statement in your last post which throws a whole different light onto the situation. You said:- " Forgot to add when the 7 shuts itself off you don't get the curtains , it's a hard shut down , screen goes black and no stand-by light for 10 seconds " So, it shuts itself down as if there were a power