Question about JVC LT-23X475 23 in. EDTV-Ready LCD Television

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JVC LT-23X475 flat screen TV

After running about two hours the TV screen goes black, but the sound continues. If the TV is turned off and turned on again, the picture will return, but only briefly. It seems related to high room temperature. The transformer feels quite hot when this is going on.

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  • denis7168 Dec 21, 2008

    i have a jvc LT-26C31BJE lcd tv, the tv turns on fine, but after a while or if i put on standby and turn back on the picture goes black, i have the sound but no picture, if i leave it to go cold the picture is back.

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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.

Posted on May 27, 2008

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Normally when there is sound and no picture there will be problem with the back light inverter board. But in your case not only the picture also you can't be able to adjust the volume, Power or the channel. So fist of all you have to check the power supply board for any budged capacitor. Watch the first picture you can see the budged capcitor. If there is such capcitor replace them and check again. Remember one thing unplug the power cord and leave it for half an hour then only remove the power supply.

If there is no such capacitors then the problem is with the main logic board of your tv. There is no repair possible with the main board. You have to replace the board. You can buy the main board from the authorise servicing centre for jvc. The authorised servicing center will be relable source.

10_26_2011_5_59_57_am.jpg

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