Question about Hitachi 50UX57B 50" Rear Projection Television

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Screen blinks and then goes out. tap on side and causes flickers

My screen works fine and then about 2 minutes later flickers and goes out. No picture or audio. A bump on the side of the cabinet makes the screen flicker. Unplugging it, waiting 2 minutes and plugging it back in helps.

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Sure sounds like loose solder joints, look for them in the deflection circuit, just find the hard plastic encapsulated body with the thick red wire sticking out of it thats where usually the loose solder joints develop.

Posted on Sep 09, 2009

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Lg55lv4400-va 55" flatscreen tv ( not a plazma) has developed a wide flickering vertical flickering stripe down the screen. Has been fine . Goes away once in a while. An Ideas what is wrong ?


If you wish to get some details; check the site linked here. Pull up older posts. Surf the site with patience. http://electronicshelponline.blogspot.com/
Line, faults & possible causes to LCD screen are given with illustrations. You can get an idea about the fault to an extent.

Nov 03, 2014 | Televison & Video

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Losing TV picture, screen goes blank,


If your LCD TV or monitor has stopped working, or is displaying one of the following symptoms, then it's a candidate for some new capacitors
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- Screen image disappears after several seconds
- Dim screen
- Slow start
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- Unusual colors and/or lines
The primary cause of LCD TV and monitor failure is caused by faulty capacitors. You can examine the capacitors in your LCD TV or monitor and actually see if they are bad.
If they appear bulged on top, then they need to be replaced.
New capacitors will solve a host of problems in LCD monitors and TV's and will extend the life of your monitor or TV by several years.
Check the cables, connectors and connections.
Take it to a repair shop.

Apr 21, 2014 | Televison & Video

1 Answer

I have a RCA L32HD31YX12 TV. The TV works fine for a half hour and then the screen flickers and goes black. The sound continues. If I turn the set off for a half hour, it works again for another half


You have answered your own question, someone needs to open it and find a loose plug or broken solder connection--if it reacts to being tapped on that is the issue- a physical problem inside.

Dec 05, 2012 | RCA Televison & Video

1 Answer

Samsung television flickers to bright white fuzzy picture


In such cases, we have to ensure that it is not the input device that is causing this problem. So, please switch your input device to something you are sure, works. If you notice same problem, look for loose contacts in inter connecting cables and jacks. If problem persists, please refer it to a qualified service technician.

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2 Answers

I bought new screen of ebay but it flickers


Did you check both ends of the LCD Screen cable? The end that goes behind the lcd screen at the top and also the other end that attaches on the board. Also put a piece of tap over where the connections meet on the lcd screen to keep it in place.

Did you reseat (unplug then plug back in) the 2 cables that are in the LCD Inverter located at the bottom of the LCD Screen?

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1 Answer

Hourglass picture. Panasonic CT-35G30T The picture is hour glassing from the sides. Starts to flicker back to normal after 1 to 2 hours. Getting progressively worse. Takes longer time to reach normal...


This is caused by bad solder connections in what's called the pincushion correction circuit. Some of the transistors get quite hot, and over time the solder connections to the TV circuit board become intermittent. When you tap the set, it causes them to make contact again so the picture is normal, but then it goes funny again. Resoldering the connections would take care of this problem. I would suggest calling a professional in to make the repair, which would cost far less than a replacement TV.

Hope this has been helpful, and thanks for using Fixya!

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Screen Goes Green TV goes to stand by blinking 8 times


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try it on tuner mode to seperate the fault from video to rf input,if gone the video pc board is at fault.

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