If you plug in an ear piece you can hear sound it worked one day and the next it shut down
SOURCE: JVC LT-23X475 flat screen TV
capacitors are most likely to blame here, there are several that most likely are on the power board and are blown if you get them replaced the tv will function normally, the heat can come from the transformer since it is not getting smooth power from the capacitors. it is working very hard to dump the spikes in the electricity. I ups backup power supply rated for the tv's wattage will help smooth power and protect your investment.
SOURCE: Turn on JVC 32
There is a way to reset television. I have a jvc 42inch that was just going to main logo screen and not beyond it. If i remember correctly you unplug the tv hold power button for 5 sec on tv then let go plug in and start. If that dont work unplug and then plug and hold power button on tv for 5 sec. It is 1 of those combinations. My tv worked after that. I googled my problem and a website listed that some tvs need to be reset.
SOURCE: TV screen went dark, but sound still there.
your backlight burnt out, this will be a maybe several hundred dollar repair. the screen is backilt by a very expensive flourescent light, without that light, the screen will be black.
SOURCE: JVC LT 42x688 no picture just sound
Sorry, this has no easy fix. The good news is you do not need an LCD Panel. The bad news is the Video Processor has a problem.
This TV has x3 Boards. The one you should replace first is the one in the middle. If this doesn't fix it, try the one on the right. The Part #s are on the Boards if you wanna try ebay.
SOURCE: JVC LCD TV LT-42X688-powers on, blank screen. no picture,no sound
Hi , I have the same problem with my LT-42X688,so i called the service of my extended warranty provider . the TV technician just left and told me the motherboard is the problem. he said its the third one this week he has seen with the same symptoms. he ordered the motherboard and i've got to wait 5 to 7 work days before the part will be in . I will keep you posted when the guy will return.
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