I have the 19" LG LCD Flat for my office and when I went to turn it on I received a quick image of the show then it went to a black screen. No one seems to have any answers of why it did this. Please help. email is firstname.lastname@example.org
The problem most likely is the capacitors on the power board look for the caps that are swollen or bulged out on the top of the capacitors my lg did the exact same thing try it out you will be surprised
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Try the old flashlight test, turn off the lights in the room. Turn on the set and flash a bright flashlight on the screen. Do you see the image or is the screen totally black?? If you see the image, then most likely you have a backlight problem. Verify that you have 24V on the power supply for the inverter
If you've tried the backlight and brightness from the menu, you may have a more serious problem. Try this;
Take a bright flashlight and place it against the LCD screen. See if you can see an image around the edge of the flashlight. If you see an image, you probably have one of three problems;
1) The inverter board is bad.
2) CCFT (cold cathode fluorescent light(s)) are dead 3) Power supply to inverter board is bad.