Our above model lcd is about 2 years old. About 2 weeks ago, the screen started to go black but we could still hear the sound as good as normal. We would turn it off and about 6 hours later we would turn it back on and it works for about 10-15 min on average and then like clockwork goes black again. We have to wait about 6-7 hours before we can get these 10-15 minute blocks of picture, otherwise it is only sound no picture. I have read about the backlight inverter going out but in most of the posts, I read the screen would blink at you and then go out. If it was the backlight would we be able to watch it like normal for 10-15 min every 6-7 hours? We really do not want to have to get a new TV, I just want to know whats wrong with it....Any help would be greatly appreciated....
Hi. You can try to go into service mode and reset the LCDTV to Factory Default. This will clear out all buffer over run's and any software related issues. It may fix the problem or it may not. If this doesnt fix the problem than you need to have a qualified Technician to look at it. The problem is in the AV circuit board, a technician who is qualified to repair electronics at circuit board level should be able to repair this problem rather quickly and inexpensively. Most technicians who do not have the expertise in repairing cicuit boards to component level would rather replace the whole AV board than repair it and this will be rather expensive.So talk to the repair shop before you drop the TV off.
Be very careful when accessing service mode. I suggest to write down all information in all areas before proceeding to a factory reset. If you do not record all values correclty you run the chance of not being able to use the TV again. To go into Factory Service mode, use the original remote and in this sequence push POWER OFF-MUTE-1-8-2-Power ON, the set will turn on and enter service mode, if you hit all previous keys correctly. If it doesnt try again. When you are done hit POWER OFF and this will exit service mode and save the data.
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Hmmm, we just discovered our two year old LCD from Samsung is shot, we had the same symptoms. 2 years??!!
Same problem, almost 2 yrs old, started on Christmas eve. Screen goes black, then lines horizontal/vertical and sometimes nothing.
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