I have 15" monitor (NTC Ultraview KM-511-1), What are the possible causes if the horizontal size of the video over extended to its screen both left and right side, it also produces a rattling sound from a relay after it was powered on after few seconds?

Rene, September 2007

it could be as simple as the control for screen width going faulty depends really if the control is analogue or digital, there should be internal controls on the circuit board to control screen width, but unless you know what you are doing it's very dangerous to go poking around inside the back of a monitor they can have between 25kva and 35kva on the anode cap which connects to the back of the tube with what looks like a rubber sucker connected to a lead, I wouldn't advise opening the back unless you know EXACTLY what you are doing

Derek, September 2007