..........">> If you had a continuity tester (beeper) you could clip one end onto >> the mains plug (L then N etc) and put the other probe around the back >> of the socket / PCB as you wiggle the plug etc? Much easier to hear >> than see on an ohmmeter (especially digital) and safer than trying the >> same on the mains etc. > > Yes I have a continuity tester so will have a go with that later today.
Good for intermittent connections as they normally screech and wail."...........
Update: Using continuity tester I could not find anything however when I then `plugged` the mains lead in (at the monitor end only) when wiggled as this gave a bit more leverage then the continuity was intermittently broken, this only appears to happen on the live wire connection so hopefully I am getting to the source of the problem. I also tried a second lead and the same result. I still cant see any `movement` but it does point to one of two connections. Hopefully tomorrow I can confirm which one and attempt a fix.