Having problems with your ViewSonic OptiQuest Monitor ?
Monitor Goes black, or flickers on and off
\015 My monitor is going on two years and I've recently started having a similar problem. At first the monitor would turn off when i moved the monitor around and I thought it was the power cord. I would have to jiggle the cord or move the monitor around to get an image back on. Weeks later I had a tough time getting the monitor to display an image or come out of sleep mode when I moved the mouse or pressed keyboard keys. I had to restart the computer for something to come on, at this time I assumed it was the computer or video card. Eventually, when turning the monitor on it would flash on and off a few times then stopped. Then weeks later it would the same thing but the image would then go black and the green power light would keep flashing. At this point I've noticed a high pitched sound from the back of the monitor, especially louder when there was a lot of black or dark colors on the screen. I've recently realized that if you have lots of darks or blacks when coming out of sleep mode or turning the monitor on causes the screen to flash on and off for about 4 times then stays off and the power light keeps flashing. You have to get a bright image on the screen or a lot of white for the thing to stay on after the flashing. After a while the thing stays on just fine, with the high pitched sound tho. \015
The high pitch sound is coming from the inverter. It is faulty and needs to be repaired or replaced. The inverter supplies high voltage to the CCFL lamp, this lamp gives the backlight to the LCD so you can see the LCD images.
\015\012Check out LCD parts for parts, service and DIY info. use this link :-
\015\012Check out LCD parts for parts, service and DIY info. use this link :-
Repair Help & Product Troubleshooting for ViewSonic OptiQuest Monitor
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