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Dell monitor E177FPc - light comes on green but immediately turns steady amber and screen is black?
This trouble maybe power supply or inverter boards is defective.
first you can test the voltage of the multr,and then check which part is defective.From Wisiny.com can find those parts
if you have any question,please let us know email:[email protected],we sincerely hope we can help you!
you can also check this boards whether suit you: 1742SED2H 715G1492 2 FR Dell ADTV1742SED2H Power Supply Backlight Inverter...
Look inside for bad caps with bulgng tops, worst case will be shorted out transistors in the backlight inverter circuits or bad lamps. Check to see if you do have he 12vdc for the inveter circuits. See example of failed monitors with bad caps here: http://s807.photobucket.com/home/budm/allalbums
If tried the monitor on two other computers with the same result -- definitly your monitor is faulty. Take it to the repair shop. To make double sure, run your computer with another monitor. If everything is fine now; you can blame the monitor.
Strange that both should show the same symptoms
don't you think?
Have you changed anything computer wise?
Graphics card or resolution?
Screeching noise is a puzzle too.
How are they powered - internally or via a separate power supply?