I've just bought a 37 inch LG LCD tv. The picture shows excessive SHINE on faces and bright areas, for example, light coloured walls. How can I solve this problem?
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When the screen goes blank, dim the lights in the room. Take a bright flashlight and shine it on the panel. If you see a faint picture, you have a backlight failure
You could have a back light problem, or a video feed problem. I would suggest turning on the set and shine a bright light on the screen. Do you see faint video?
Hello If baklight CCFL tubes become weak, the brightness will be very weak. Now you can see the picture with least brighness. So it is sure that, the backlight inverter board is working well. Just check the CCFL lamps. For a 37 inch LCD tv may have atleast 14 CCFL lamps. When replacing, do replace all at one time. OK.
Hello
Adjust the contrast to 55 to 70%; brightness to 45 to 55% and colour to your viewing taste. Now the brightness will be very low I thinks. Advance the brightness and contrast after setiing the colour to Zero. Adjust for a well defined B/W picture first. The advance the coulour. Take reference of the face colour of a news reader at studio. The picture will be perfect. OK.
You may have got a bad unit but more likly it's your cable you are using I have found with the newer HD units the siganal has to be real clean coming in or you do get a distorted picture. Try changing out you cable lead for a good quality cable,
This is no solution but a point in a probable direction.
A tech guy told me ALL the LCDs they have seen in their repair shop have "swollen" capacitors, this is due to voltage instability. Lowering the internal voltage regulator and replacing the swollen capacitors (which eliminate noise) apparently restores the LCD to new working quality. Without actually "seeing" my problem the tech said that should repair it. I have not tried this yet but eventually will begin that way.
Make sure that the color control level is set to the default or 50% to start with. This should be in the Video menu.
The colour for the tuner and for the encoded base-band video uses a circuit area called the colour demodulator. It is possible that this cirucuit area has failed and needs servicing.
hi everyone, well i,ve solved our problem. i had the same head bashing problem for months,tried everything.what you have to do is turn all display settings to 0 and then run tv for several hours like that,then slowly bring up brightness and colour only leave contrast at 0. i,ve tested this for a week now and bingo the light show is over at last,my god the relief.good luck everyone
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