Question about Hitachi 42PD6600 42 in. HD-Ready Plasma Television

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White horizontal flicker on screen

There is a small white horizontal flicker that appears onscreen. This is temporary and occurs each time the unit is turned on for up to 15mins, then does not happen again until the next time the unit is turned on. Sometimes it does not flicker for days and is fine, sometimes the flicker is there for 15 or 20 mins.

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Sounds like the logic boards on its way out

Posted on Feb 02, 2008

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Screen is flickering with lines running horizontally


the horizontal control unit is beginning to have some type of electrical issue, is the unit under warranty.

Oct 05, 2015 | Sharp AQUOS LC-70LE755U 70" LED TV...

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Sony Brava Blinking Code and their meaning


Hello,<br /><br />Below are some blinking code interpretations for your Sony Brava TV;<br /><br />ONE Blink--- not used for the self-diagnosis<br /><br />TWO Blinks---B+ over current protection (OCP) , unit goes to the standby mode then displays the 2 blink fault. Could be a short in the power supply of any of the circuits.<br /><br />THREE Blinks---B+ over voltage protection (OVP), unit goes to the standby mode then displays the 3 blink fault. This is also a problem in the power supply circuit, check T603 and R672.<br /><br />FOUR Blinks---No Vert. Deflection (V STOP), Screen goes to a single horizontal line then the video signal muted. Check IC1509, Q1505<br /><br />FIVE Blinks---AKB circuit (AKB), the timer/standby indicator blinks for about 30 seconds then goes to the self-diagnosis function. Something is wrong with the video. Check video out, Q705, 732, 761 and other components on the C board, also check Q218, 219, 220 on the A board. Also unit be in IK blanking, try turning up screen slightly.<br /><br />SIX Blinks---No Horizontal (H STOP), no raster, goes to the blinking self-diagnosis function immediately. Check C515 & 516 and the jungle IC, IC206.<br /><br />SEVEN Blinks---High voltage shutdown. The high voltage has exceeded 33k and the unit goes immediately into safety shutdown. Check power supply regulation and horizontal circuits.<br /><br />EIGHT Blinks---Problem with the audio (AUDIO), unit goes to standby and blinks the self-diagnosis code. Check IC406 audio amp, PS401 and 402.<br /><br />NINE blinks - Replace D 6116 and D 6301 on the "G" board, do not resolder as this will fix the problem temporary. Or Panel Module Error or Thermal Error. If it is intermittent 9 blinks, meaning sometimes the TV comes on and other times you get flashing, then change the switching regulator on the "G" board or check connections. Make sure the regulator is -12 or -13 (negative).<br /><br />TEN blinks - Check Q8014 and Q8013 for shorts, leakage, or bad solder connections on the " D" board. If the transistors are bad, check R8051 and IC8005, also on the "D" board.<br /><br />Intermittent problems ?? This is a great feature. You can also bring up these fault codes ON-SCREEN to see a list of the problem numbers with the abbreviation of the problem and the number of times this problem has occurred. This is slightly different than entering the service mode. To see the diagnostic screen, Press the following buttons:<br /><br />Display, Channel, 5, Vol Minus, ( Not plus ) then Power. This brings up a screen with a list of the problems and number of times they have occurred. Each of the problem names is abbreviated as, "OCP", "OVP", "V STOP", ETC. We have repeated them in parentheses in the text for the "Blinks" described above so you can correlate between the diagnostic screen and the blink codes.<br /><br />So, now that you know about these self-diagnostics, how do you use them? Say that you have a set with a black screen. You see that the LED is blinking 4 times....This would tell you that you have no vertical and that is why the video is muted. If it was blinking 6 times, you would know that you have a horizontal fault.<br /><br />I hope I have helped someone.<br /><br />Regards.<br />

on May 17, 2011 | Televison & Video

1 Answer

TH-42PX75U horizontal lines (flickering black and white)


The controller board for the screen is going bad. check shopjimmy.com for replacement parts. It's not a difficult job to do. Once the back of the TV is removed, you'll see it near the center of the screen.

Feb 21, 2014 | Panasonic VIERA Televison & Video

1 Answer

Flicker screen


If any buffer board is faulty, this kind of fault can occur. Might have a panel fault too. It will be best to contact any service technician, to make it confirm. If you wish to get more details, check this link. http://electronicshelponline.blogspot.com/ Selecting the view option, either to Mosaic / Time slide, can be selected by the drop-down list, at the top left of the display window, will make surf easy. You can also do a search, by type in the brand name/model number/IC used, in the search box at the top right of the display window.

Oct 16, 2013 | Sony FWD-50PX2 50 in. Plasma Television

1 Answer

Fuzzy Display in bottom 2/3 of screen


Power supply is probably going out. Not likely the video card in this case.

Nov 18, 2012 | Viore " 24"" Class - LED - 1080p - 60Hz -...

2 Answers

After about 45 minutes flickering horizontal


It would seem that the video processing section is sensitive to heat. You do not indicate how old the set is, so if under a year, it should still be under warranty and you should request warranty service. Provide as many details about when the problem occurs so that it can be reproduced.

If the unit is out of warranty, check to be sure that any fans on the top or botton are free from dust and are turning. Also, you can open up the back and carefully reseat all of the cables and connectors. A bad connection at one of those could show up like this too. If all of that fails to resolve the problem, then the unit will need to be seen by a servicer. There are no user servicable parts inside other than the actual boards and those are not cheap. It is possible that a servicer may spot something that we can not see, being remote and all..

Good luck and keep us posted.
Dan

Apr 12, 2009 | Olevia LT42HVi 42 in. LCD Television

1 Answer

Samsung LNT4669F Pixcels Flicker


As long as you only see these artifacts while watching certain broadcasts, the TV is fine.  If these lines are present no matter what you are watching, then you have a problem. What you are seeing is signal related and there isn't much you can do to fix that. Think of it like a scratched DVD; you will see strange things on the screen at times and many think it's the TV when it's only the signal from the device to the TV that is corrupt.
I have thought of one possible solution and this will depend on your TV's ability to slightly stretch the picture in vertical/horizontal directions.  If your TV will let you, you may be able to raise the top of the picture a cm or so to hide the flickering.  Check the TV's onscreen menu for anything to do with picture alignment.  This is nothing to do with aspect ratio though so ignore that.

Mar 24, 2009 | Samsung LNT4669 TV

1 Answer

Sylvania 6842-PEM Flickering Problem


Something is breaking down. Possibly a specific ceramic capacitor on the main power pcb that has been troublesome. Usually there is just a loud pop and the screen goes dead. If the set is less than a year old it is still on parts warranty and the technician could just change circuit boards until the problem is gone.

Aug 30, 2007 | Sylvania 6842-PEM 42 in. EDTV-Ready Plasma...

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