Question about HP Pavilion F1503 15" LCD Flat Panel Monitor

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Monitor keeps going i to sleep mode

I have just moved my computer from one room to another and the monitor now will not turn on. the green light comes on for 3 seconds and then says going into sleep mode and turns off orange light on

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Check the cable it's not connected correctly or check you CPU is it working fine.

Posted on Dec 08, 2008

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My screen is saying burn in and keep switching colours all the time.(white,red,green,blue.


You may need to send in unit for service because your unit is unable to go to sleep mode when the signal cable is disconnected or the PC is turned off. Please call ViewSonic Customer Care for support.

Although this will not hurt the monitor, you just need to apply an active video signal to get a display correctly. However, it will not work as expected to go into sleep mode. You'll need to call ViewSonic Customer Care to get this taken care of.

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My screen symtoms are a little different on my L1975NW.


I am guessing the LED power indicator blinks green then becomes steady when the screen "turns on" (shows video). The problem is most likely a failing backlight power supply. That's why there is a 30 minute delay. Try to disable sleep mode and see whether that helps.

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http://s807.photobucket.com/albums/yy352/budm/Dell%20E173FPb/

Please post back.

Replacement board: http://www.lcdrepair.us

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Monitor Goes black, or flickers on and off


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Sharp light turns green thern turns yellow screen goes black


it is going into sleep mode, good luck with this.... i am currently asking how to get my hard drive to quite putting my monitor into sleep mode.

although it hasn't worked for me because my screen stays black, one of the options given to me is to try to start in safe mode and then adjust your settings to "never" on the energy/sleep/hibernate mode

some one else suggested that i remove and reseat the video card

hopefully one of those will work for you

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Honestly it sounds like something is going bad in the monitor (my guess would be either the main power supply or the backlight power supply) and you would either need to know electronics or know someone who knows about repairing electronics to fix the problem without replacing the monitor.

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Power on


connect the monitor to pc and press the power button to make it to the power on mode. you must have used your keyboard to make it on sleep mode.

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