Having problems with your ViewSonic VX924 19" LCD Monitor ?

Computer monitor I leave my computer on all the time and recently my monitor will not stay on. The power light is green (not orange for standby) but the screen is black. I can turn the monitor power on and off and it will come on for a brief second and then go black again. If I do this numerous times, it will eventually stay on. If I restart my computer it will sometimes stay on but not every time.

Answers :

This is a generic symptom that could happen to any LCD\015\012monitor.
\015\012\015\012\015\012The following is a generic answer applicable to most.
\015\012\015\012\015\012Two possible causes are bad capacitors or a bad light inside\015\012the LCD panel.
\015\012Open the unit and check to see if any of the capacitors in the power supply or\015\012other boards look domed or vented on the top.
\015\012Replace any capacitors accordingly. Use the same value capacitors. Most often,\015\0121000uF 16V or 25V, 470uF at 16 or 25V, 220uF at 16V or 25V.
\015\012If this doesn’t solve the problem, try checking the surface-mount transistors\015\012on the inverter board that run the lights. Some times these transistors go bad.\015\012Check the area for any cracked or overheated ceramic or mylar capacitors.
\015\012\015\012\015\012Also, you may have a bad light inside the panel. This is\015\012tough to test without a spare light to use for troubleshooting.
\015\012You can take the panel apart and inspect the lamps but it is very tedious. It's\015\012tough enough to get them apart and back together again never mind keeping the\015\012layers clean. You have to try not to get any dust between the layers or you\015\012will see it in the picture.
\015\012There are usually two light fixtures each of which holds two lamps. One fixture\015\012is at the top and one at the bottom. Remove them one at a time and inspect the\015\012lamps to see if any are broken or very dark on the ends. If one looks out of\015\012place, it could be bad.
\015\012You'll have to find replacement lights on the net. It's not easy to replace\015\012them, but if you've gone this far, good luck. You should be able to get generic\015\012instructions off of the site that sells the lamps.
Repair Help & Product Troubleshooting for ViewSonic VX924 19" LCD Monitor

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