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I have this same problem. Blinking amber Light and no display. on close examination I am seeing the video image attempt to come up, but with no back lighting. I think there is a power supply problem. I will post again if I learn more.
If it is still in warranty call the manufacturer.
if not give more info firstname.lastname@example.org. May be somthing simple like a cable
shutdown computer unplug then disconnect the video cable on the computer from the monitor, plug monitor back in and turn it on, there should be a display that says no video source within a few seconds, if unit is working properly. shutdown and connect video again and then reboot computer. sometimes it just takes a compleat power disconect to reset things,
Try the unlock procedure:
With the monitor on press and hold the "MENU button for abot five seconds and see if it resets.
If that doesn't work tell me a bit more about the screen - is there any OSD (on screen display) or error messages?
Is the power indicator light on?
If so, what color is it?
Blue indicates that that you may need to turn the brightness and contrast up...\
If it is actually in power save the indicator light will be amber. What color is it?
If the light is amber and all the connections to the computer are correct and it still won't come-up then it's an internal problem and the protect circuit may be keeping the screen from lighting.
Good luck... And let me know.
the problem is always corrosion on the circuit board that has the buttons disassemble the flat panel remove 3 screws that hold button board on disconnect the tiny cable from the button board use a tooth pick and clean inbetween the solder connections where the ribbin cable plugs into button board
I had a simalar problem with my Dell 2001FP. The issue is that there is false triggering of the switch; you need to open the front panel, and remove the swictch from the circuit by:
1) analyze the circuitl; its usally pretty simple - a voltage drop circuit.
2) disable the switch by either removing it with a solder gun or, simply by using a sharp blade and cutting the PCB track leading it to it, as I did.(much easier - and reversible!)
Fixed my problem.