Question about Toshiba 36AF42 36" TV

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Picture goes black

The picture on my Toshiba 36AF42 constantly goes black as if the TV is powered down but the power "on" light flashes. Neither the power switch on the TV nor the remote will turn the TV on or off. I unplug the TV from the wall, plug it back in and the TV works for awhile.

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  • Frederick Zarro
    Frederick Zarro Jan 24, 2016

    I'm sure it's too late for this person (2008), but for others having this problem, the symptoms he describes may very well be due to the main capacitor on the power supply going bad (200V, 470uF). It's the largest capacitor on the power supply, and if you remove the cover from the back of the TV and look on the left side (being careful not to touch the picture tube or other dangerous areas), it's easy to find. Look at the top of the capacitor (or any other capacitors) to see if the vent on top is raised up, which indicates that too much pressure built up inside the capacitor, and it "blew". Sometimes they're not gone completely, and can power up the TV occasionally, but eventually they will die completely and you won't have any picture. The good news is that for the price of a new, GOOD brand capacitor ($5), I was able to remove the bad capacitor and solder in the new one with my soldering gun, and the set works PERFECTLY now!!! If you're not comfortable with soldering, any friend with basic soldering skills can do this job, and all they need to do is remove a few screws holding down the circuit board so they can get access to the bottom side, to unsolder the old capacitor and solder in the new one (using solder flux, of course). Hope that helps someone!

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GO TO MENU, THEN SETUP, SCROLL DOWN TO TIMER AND MAKE SURE IT IS ON 0 (ZERO) MIN. SOUNDS LIKE ITS PROGRAMMED TO GO SLEEPAFTER A CERTAIN TIME. THIS TV ALSO CUTS OFF AUTOMATICALLY IN 15 MIN. IF ITS TUNED TO A VACANT CHANNEL( NO PICTURE).

Posted on Dec 27, 2008

  • Frederick Zarro
    Frederick Zarro Dec 13, 2015

    How can you "Go to Menu", if the TV won't turn on at all? I guess you can't...

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