Question about Computer Monitors
I brought home a flat panel from work that we no longer use. When it is turned on, you see the desktop for a brief second and then it goes black. If you turn off the monitor and turn it back on, you see it again for only a second before going black again. I have check the power supply and connections. I have tried it on different computers and with different power supplies and cables. What am I missing? Any ideas?
Check for swollen 470uf 25v capacitors in inverter circuit
Posted on Dec 05, 2011
That is to say, my NEC monitor is supposed to be the same as the Neovo F-417. I just went in and tapped on many of the components on the backlight inverter (while the power switch was off - this display has a real power switch on the side) and then turned it on and now it's working. I suspect the specific problem with this specific display (or displays which are the same product with a different label) is actually a bad solder joint caused during the manufacturing process, and that the actual fix (mine's working right now but I don't trust it to continue doing so of course) is to reheat solder joints on the board. If we are lucky this bad joint is one of the ones for a component that mounts to a through-hole and not one of the SMT ICs.
Posted on Nov 26, 2007
You might wanna try the same as posted somewhere else in this forums and lower the screen brightness. I am in the same situation as you (although the screen stays on for 3 or 4 minutes).
if this doesn't work then I'll suggest you hit the screen reasonably hard on the floor (given that you didn't pay for the screen and it would have been discarded anyway) and see if it works... x
Posted on Oct 23, 2007
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