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A flashing power light indicates a failure of the power supply, this will also cause the white screen. Here is a link to a page showing what parts need to be replaced to repair the power supply board and get your monitor back running again.
Your monitor problem is causes by the power supply. What is happening is the power supply voltages are not stable, just enough to power the unit up. When you connect it to a video signal the power demands slightly increase and the power supply can't handle it. This is a very common problem with LCD after a few years of use. The issue with the power supply is the capacitors have started to fail. These parts are used to filter the output voltage and when they start to fail the outputs start rippling hence the problem you are having. Here is a link to a repair article that shows how to repair the Gateway FPD1975W monitor. http://www.ccl-la.com/blog/index.php/gateway-fpd1975w-monitor-repair/
this message appears during power on and disappears after a few seconds when an input signal from the CPU is detected.If the message did not disappear you can press the menu button on the pannel of the monitor then exit the menu and the message will disappear.
good day to you!
CONNECT THE MONITOR DIRECTLY TO THE WALL OUTLET
CHECK WHETHER YOU GET CHECK AUDI SIGNAL OR NOT OR ANY MESSAGE---HTEN CHECK FOR THE CABLE---IF STILL THE ISSUE PERSISTS CHECK IT WITH A DIFFERENT CABLE---
THEN CONNECT IT TO THE COMPUTER MAKE IT SURE THE COMPUTER IS TURNED ON AND THE POWER IS GIVEN TO THE MONITOR AS WELL----CHECK THE COMPUTER WITH ANOTHER MONITOR---IF THE OTHER MONITOR IS WORKING FINE THEN CONNECT YOUR MONITOR TURN IT ON AND THEN FLASH A FLASH LIGHT OR TORCH LIGHT AND THEN SEE IF YOU CAN SEE A DISPLAY INSIDE..
WHILE CHECKING FOR ALL THESE STEPS YOUR ISSUE WILL BE RESOLVED IF NOT TYOU GOTTA CONTACT THE MANUFACTURER FOR A FAULTY MONTIOR---
STEPS IN BRIEF:
DO A MONITOR SELF TEST
CHECK FOR THE LIGHTS
CHECK FOR THE CABLE
CHECK FOR THE PHYSICAL SIGNAL
PUT THE MONTIOR ON A DIFFERENT COMPUTER AND CHECK
CONNECT THE COMPUTER WITH A DIFFERENT MONITOR AND CHECK
FLASH A FLASH LIGHT AS A LAST STEP TO SEE A DISPLAY
IF THE ISSUE IS NOT RESLOVED THE MONITOR IS FAULTY..
HAVE A NICE DAY!!!!
First you need to check the cable at both ends, inside and out. Make sure it is plugged in, to the proper connector and that there aren't any bents pins. Now put this monitor on another computer, a laptop will do. Does it come on now? If so then your video card in your machine is bad. If still bad then the monitor has lost it's signal input. This will have to be repaired by a pro. I repair these all the time and it's not as expensive as you might think.
I have repaired similar FPD models. I have one of them on this very desk. The GatewayFPDmodels develop problems after a couple or more years of use. Therepairsare fairly easy for the savvy technician. The power inverterboard inthe back of the monitor contains some capacitors, they may be470 and220 mfd or 680 mfd depending on when they were made, @ 10 16 or25volts, with a 105 deg. C temp rating. They go bad due to heatissuesand the currents they have to filter. Replacement of thecapacitorsusually restores operation. Use capacitorss of the sameratings as original for replacement.
Be advised, turning the monitor off when you are not using it will extend the life between these repairs.
You probably have 2 monitor connections. you have a standard one, and one that is through a graphics card at the bottom of your tower. Check for that second connection and switch the plug.. that should solve it.
You first take post( power on self test) connect power cord & disconnect signal cable you will see massage no signal check siganl cable then problem will be in cpu this problem may be solved by cleaning dust in cpu if montor shows no display then problem will in monitor open it check o/p of smps if not disolder path of eht if o/p comes then eht is faulty replace it