Question about Sanyo 42 in. LCD TV
I was watching tv fine and the pic went out. It was as if the tv was turned off. I continued hearing the tv as normal and it went black. I would say we have had the tv over a year with no problems. We have a cable box, sound bar, & PS4 plugged into it. I checked all cords--made sure they were plugged in tightly--also unplugged them all. I checked the input too. Nothing I did worked to make the pic turn on. Any ideas on what the problem might be?
Hi, you have not specified if your tv is still conventional tb that uses crt, or lcd
Posted on Jun 25, 2017
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Posted on Jan 02, 2017
SOURCE: Sanyo Plasma Tv Black screen
I had the same problem and Sanyo does not make parts for this model anymore. Luckily I had the extended warrantee so they reimbursed the full purchase price.
Weird that the poster above mine was able to get a part; I was told the part is no longer available.
Posted on Jun 16, 2008
Your reported symptoms are odd in that most failures are related to the primary power supply but that takes down both audio and video.
The backlight is obviously working (white screen) but it is no longer receiving any video information and this points to a failure of the logic (or the output of the power supply that services logic) used to control pixels on the screen. Some screens have the majority of the control ICs actually mounted on the LCD assembly and because of very close pin distances used on dense ICs, they are often not replaceable by hand since they were installed by robotics.
I would first suspect (and hope for) the logic voltage output of the power supply to be the culprit.
If any of you posters have had a repair done and received any kind of a detailed report (you should), would you be kind enough to post it back as a comment to this original message?
Posted on Jan 16, 2009
Yes,unplug,replug the tv an hour later.The tv should reset itself back to factory setting and work.Not,than the tv power supply board have problems.That the board,where the power a/c coard plug into it.Tries websites like Shopjimmy.com,Ebay.com to buy a refurbish power supply board for the replacement.
Posted on Oct 07, 2010
1.Your LCD unit has a power supply issue in the primary side of the main board.
It will need to be serviced.
2.There are possibly a rectifier circuit and blown capacitors that need replacement. You may have a lcd controller that needs replacement as well.
3. Sears repair may be able to repair it for a fee or you can contact the manufacturer for a qualified tech in your area to repair the unit.
Posted on Nov 01, 2010
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