Tv screen keep going black,

Sharp TV - Flashing OPC & Power Lights - YouTube

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https://www.youtube.com/watch?v=BH1OcQ6dIEE
Jul 1, 2011 - Uploaded by Tweetssun
Sharp Aquos TV flashing a OPC & Power Lights in a pattern of 3 flashes, ... Sharp Aquos LC-32D44 - One blink lamp error - Nopicture or sound - Diagnosis ... Repairing Flat Screen TV - Blacked out with blinking red light ...Missing: 32dv22u

Sharp lcd tv power button flashing - HDTV - Streaming Video & TVs ...

www.tomsguide.com/forum/54708-4-sharp-power-button-flashing

Feb 8, 2012 - 7 posts - ‎3 authors
We have owned a Sharp 32" LCD TV for about two years. ... However a quick Bing search shows that the blinking green light usually means a bad power board, which seems ... No picture, no sound, just a black screen and two blinking green ... a cable surge block on the coax where it comes into the house. Sharp lcd tv power button flashing - Digital TV
19 posts
Oct 14, 2012
Sharp hd tv blinking power no picture - Digital TV
2 posts
Jan 7, 2012
More results from www.tomsguide.com
Missing: 32dv22u

Sharp Aquos LC 42DH77: Inverter, Backlight, Power and ...

www.normsweb.com/tektips/42dh77.shtml

has anyone had this problem? I was watching my sharp Aquos tv and all of a sudden I see a black line, then fuzzzy then black screen then a loud pop, now it looks like colors that sprawl out as if something exploded in one spot inside the screen and it looks like the inside screen is cracked. but nothing hit the tv. it just happend. the sharp people tell me that it cant be fixed or replaced. and they keep telling me i hit the tv! From 5 feet back??? I was watching it. he says..did you see anything strike the tv?? I was like, I am going to ignore that rediculous question because I was on my couch..and no one was in the room! he says the only way that happens is if someone hit it! OMG! i have only had this tv for 3 months and paid $2000 for it. why would I HIT my TV!! no one will help me. I have a master plan warranty on it aswell. they wont help me.

yes

Downloaded the updated firmware from the sharp website to a usb drive. Placed the drive in the TV and went to the update software option on the TV menu. Since the update, I no longer get the black-outs on the screen. I also put the resolution on the 360 back up to 1080p and it works great, even through the component cables.

already solved it. thanks. i couldn't see the xbox settings blade because of the blank screen so switched my component cable to the tv setting instead of the hdtv setting, then i could see the dashboard in non-hd and switched the resolution to 720p while simultaneously switching the component cable back to the hdtv setting. that worked.

Most TV's have problems doing 1080p over component. Dial the Xbox back to 1080i. Make sure the big switch on the Xbox AV cable is set to 'HDTV' not 'TV'(common problem) If the problem persists, try plugging into different hookups, use HDMI (if your console supports it) or buy one of the HDMI adaptors from PDP or MadCatz if your console doesnt. HDMI will reduce the clutter and will make 1080p a reality.

First and foremost you need to change one of two things. Either your video output settings on your xbox 360, or use an hdmi cable as opposed to component cables. Component cables are only designed to output video up to 1080i, not 1080p(big difference). So if you try to run a output signal of 1080p with cables only made to send 1080i, you will have picture issues.

did you check to see if the av conponent was on tv/hdtv?

Sounds like one of three things:

1) Mainboard/Tuner problems - although I'm really only saying this because you guys seem to think its associated with your over the air channels.
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2) Power board problems. You power board/inverter may be damaged in some way - blown capacitor or other malfunctions. This is very possible as this could result in the backlight turning off and the screen going black but keeping the keeping the sound. If this is the problem, it will at some time start to happen constantly. Have a pro open it up and look at the power board.

3) The backlight is defective/dying. The backlight is a set of lights that reflects through the LCD panel. If the screen looks black, but you might see a faint picture or you still hear sound, then the backlight is not on. The panel itself could be defective. You can fix it by replacing the whole LCD panel (expensive), replacing the backlight panel itself (need a busted LCD of the same size with a working backlight), or fix the backlight, which is tough and risky.

Most likely its either the power board or backlight. Either way, you need someone to open up the TV and take a look inside. Good luck! Hope it works out.

A friend and I both have the LC-32D64U Aquos sets with the same problem. Black screen for a few seconds with no video or sound. They came with firmware version S0804171.

Installing (reverting?) to firmware S0801101 on Sharp's website resolved these issues. Perhaps you need to update/switch firmware versions, especially if hardware replacement did not resolve the issue.