I got the monitor from my neighbor,who told me it turned on and off by itself.For about a month it worked fine,but began to blank screen and had to be turned back on to work.
Now it doesnt stay powered on,when you first plug power input line in, the Power LED blinks a couple of times but then turns off... Any Help on this?
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This sounds like the monitors power supply is failing. (if the monitor is truly right off) Use a flashlight to verify the back-light is not just the culprit. If you can see faint image in the monitor with the flashlight, then this would point tothe LCD inverter is failing. Its most likely the power supply board within the monitor itself. Typically It takes 3 35v 470uf capacitors to fix and a little patience to get apart. Do a bit of googling on "replacing the caps in a FPD1975W" and youll see what i mean. Cheers.
Power drain would be a better solution in this case. 1.first shut down the comp 2.unplug the charger 3. remove the battery and after press and hold the power button for 60 seconds without any charger and the battery.After the 60 seconds replug the battery and the charger and turn the computer .
First, confirm that it is the screen itself. Connect the video output to a known working monitor and then power on your Thinkpad. if the known working monitor behaves the same way you can rule out the laptop's monitor as the source of the problem. This may be the BGA, Ball Grid Assembly, leadless soldering problem related to video chips on the motherboard, but first test the monitors.
If you know how to open it up and get to the power supply you will find three capacitors 2-820uf and 1-330 @ 25vdc 105o.they will have puffed up tops replace them. FYI the monitor has a 3 year warranty.
The green power light indicates that the monitor is receiving from the
computer correctly. I suspect it is going into high voltage
shutdown. There is a safety circuit that monitors the high
voltage and shuts the monitor down if it sees anything amiss. So
the monitor comes on and then shuts off. High voltage problems
are generally not worth trying to repair. Another example of a
worthless safety feature. High voltage failures are not
dangerous, and adding the safety circuit just kills the unit when it
may have some life left or worse, sometimes it is the shutdown circuit
itself which fails!
Hope this helps.