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If the picture disappears from the screen and the
1 (power) indicator is green
1
Turn off the 1 (power) switch and disconnect the
video signal cables from the monitor.
2
Turn the monitor on by pressing the 1 (power)
switch.
If all four color bars appear (white, red, green, blue), the monitor
is working properly. Reconnect the video signal cables and check
the condition of your computer(s).
If the color bars do not appear, there is a potential monitor failure.
Inform your authorized Sony dealer of the monitor's condition.
Be sure to note the model name and serial number of your
monitor. Also note the make and model of your computer and
graphics board.
The discoloration problem is due to the near by magnetic field appliances like speakers which are very near to monitors ... so what you have to do is just keep some distance to the monitor from the speakers and other magnetic appliances and then press menu button & just give degauss..
When you connect an external monitor to your laptop, you have to switch the video signal from the laptop screen to the external monitor by holding down the blue lettered <FN> key and depressing the blue lettered Function (FN) key that has ( CRT/LCD ).
Sounds like you're stuck in number lock. Press Fn and F11 at the same time. That's function and F11. I'm pretty sure that'll do the trick, as long as the blue portion of the F11 key reads "NmLk" or something like that. If this doesn't work, let me know and we'll try something else.
there may 2 problems 1 ) Problem with the Data Cable connector the Pins might be damaged try to arrange them if disturbed / bend . if Broken change the connector. 2) Open the monitor see the soldering carefully you can locate out the dry solders easily by seeing the flux colour around it . just put the solder over there..by soldering gun to all places where u can see the dry solder.
Open your monitor's back cover and on the circuit laid underneath the CRT you will find a big black object. Check it, there will be two knobs having H- focus and V- focus, control them and your CRT will focus correctly. If still problem persists on the CRT there is a white box with three control knobs, adjust them.
You may not be running native resolution for the LCD screen.
Open Display control panel and on settings tab, set Screen resolution to maximum right position.
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