I have LCD that will not turn on. I tried turning it on by removing the power cable from the back and then reconnecting it while keeping the front power on button pressed. The monitor powers up and works fine.
I have to do this every time to turn on the monitor. What is the likely cause? Your help would be greatly appreciated.
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Re: monitor will not power up
There are at least 3 models of the fpd1975w. The fpd# is the general product name.
The model # is usually located on the rear on the white part of the sticker above where it sayd fpd1975w.
Two models have interchangable parts. One doesn't.(the LE1936)
It sounds like a switch on the video control board is not activating correctly.
Since the system seems to work normally, from what you say once you
fire it up, it shouldn't be a power board related problem with
capacitors or transistors or the like.
Depending on the age and use on the monitor, the capacitors do
eventually create problems and there is a SLIM chance that you voltage
is just a bit shy to fire the power button, but it seems unlikely.
Usually they cause problems lie sutting down when they are hot, or
flashing on for just a little or not wanting to start up at all.
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Re: monitor will not power up
The main power supply has a problem; pulling the AC cord turns off all power allowing it to 'reset' while pressing the front panel button only sends a logic-level signal to the supply to tell it to power up.
I don't know if the supply is on a separate board or not but removiing the back panel would show you if it is.
If separate, the board will have mostly larger components on it such as larger capacitors and probably a larger transfomer with a solid core of ferrite.
If you can find a part number on a label that should be the completed assembly identifier and you could check to see if Gateway will repair it or you might have to buy a replacement that you could install yourself; it isn't tough to do; generally there will be variety of plugs with no two alike so mistakes are difficult to make.
If you see a part number that seems part of the printed circuit etching, that will be the bare board, not what you need.
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The HP is a flat screen monitor used with many desktop computers. When the LCD on your HP monitor goes white, it is an indication that your monitor's inverter board has gone bad. The inverter board is a small circuit board that transfers power from the monitor's main circuit board to the LCD screen. Replacing the inverter board means dismantling the HP monitor.
1. Power down your computer and unplug the HP monitor cable from the back of your desktop. Disconnect the power cable from the back of the monitor. Relocate the monitor to a flat work surface. Place the monitor with the screen facing downward.
2. Remove the Phillips-head screws from the monitor's base stand and from the back cover. Lift the base stand off of the monitor and remove the back cover. Peel away the foil from inside the monitor around the internal circuit board.
3. Locate the inverter board near the bottom of the monitor's casing. Unplug the power cables from either side of the inverter. Loosen the Phillips-head screws from the inverter board. Lift the old inverter out of the monitor's casing and set it aside.
4. Place the new inverter inside the monitor. Replace the Phillips-head screws and fasten it in place. Reconnect the power cables to the connectors on each side of the new inverter. Replace the foil around the outside of the main circuit board.
5. Replace the back panel and base stand, and their retaining Phillips-head screws
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Most Dell LCDs have multiple inputs and they will go into "standby" while waiting for a signal from your PC.
This happens when your PC goes into "sleep" mode or if you are sure your PC is not in "sleep" mode then usually the LCD is not in the correct input selection. Check the input selection for the appropriate input. As always, make sure the cables are securely connected. Hope this helps.
There is a power supply problem and inverter board issue, cause usually bad capacitors in the above mentioned, sometimes they bulge at the top indicating they are open, repairs can run to the point that it may be cheaper to replace the monitor.
Unplug power. Unplug VGA cable. Remove back of monitor. (four small Philips headed screws along the bottom rear. Remove screws attaching Monitor to it's base. Carefully, lean the screen away from back of case. Gently unplug 25 pin cable from the screen. Connect AC power. Screen should power on Gray to White. Ble light comes on Blue.Flickers then changes to Amber. Reconnect VGA cable. Monitor should work. Close up the monitor in reverse order to opening it. If these steps don't solve your monitor, consider replacing as cost of repairs may shock you.
Self-Test Feature Check (STFC)
Your monitor provides a self-test feature that allows you to check whether your monitor is functioning properly. If your monitor and computer are properly connected but the monitor screen remains dark, run the monitor self-test by performing the following steps:
Turn off both your computer and the monitor.
Unplug the video cable from the back of the computer. To ensure proper Self-Test operation, remove Analog (blue connector) cables from the back of computer.
Turn on the monitor.
The floating 'Dell - self-test Feature Check' dialog box should appear on-screen (against a black background) if the monitor cannot sense a video signal and is working correctly. While in self-test mode, the power LED remains green and the self-test pattern will scroll through the screen continually.
Turn off your monitor and reconnect the video cable; then turn on both your computer and the monitor.
If your monitor screen remains blank after you use the previous procedure, check your video controller and computer system; your monitor is functioning properly.
Disconnect and reconnect both ends of the video cable (while the computer and monitor are both off). Also disconnect and reconnect the power cable. Is the power cable plugged into the same surge protector as the computer? And also try a different outlet on the surge protector for the monitor.