I have a 32 kv31s16 and it recently started losing picture, sometime it will have a picture when i turn it on and then sometimes it doesnt but there is still great sound,so what can i do to fix it or if it is the picture tube how can I tell when a picture tube is no good? Thanks in advance!
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Re: No picture but great sound
Is very possible your picture tube is good,the problem might be a loose conection in the main board,the circuits to check will be the horizontal driver transformer,the output transformer and all overheated components in that area,another possible reason might be a loose conection in the crt board witch is in the neck of the picture tube,if you are familiar with tv service you can try to repair it yourself,you can start by removing the back cover and try to tap on different areas of the chassis to see if it reacts ,do this with a wooden or plastic handle(not metal)and be atentive where you tap when the set reacts so you can go back and check the solder conections,if you are not too familiar be safe and call for help from a servicer.Let Us know if you need more information.
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The tv have a long board call a LCD inverter board.This long LCD inverter board is dead.That why,the tv have picture only flashes like a min. than,died and have sound left only.The LCD long inverter board help the LCD screen panel to have a backlight to produced a picture.Tries websites like Shopjimmy.com,Ebay.com to buy a refurbish long LCD inverter board for the replacement.
Most likely you have capacitors in the power supply that have dried out or as we say vented. If your handy and want to replace the power supply I suggest " Shopjimmy.com ". If not, then take into your local service center for an estimate first.
If your TV has more then 1500-2000 hours of usage chances are the power board is starting to fail due to the amount of heat that the parts are expose to when the TV is on. There seems to be a high failure rate on power supplies due to overheating.
The solution to get the TV working properly will be to have a new power board or repair the on inside your TV.
Let me know if you require further assistance.
if you have not gotten this fixed get it to a repair shop your problem is intermittent there might be lose solders or component in the power supply is failing and needs to be replaced.good luck blessing from belize