On occassion when the tv is on, there is a change in the pixel color on top of the tv screan which displays a lack of color and uniformaty in the pixel on the screan. It's usually about 5 inches by 12 inches wide. The tv needs to be shut off because I'm noticing it's hot in those areas where the pixel discoloration appears.It display a white to green color on the affected area.
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I need to know if you have each device running straight to the TV or if you are running them all through an AVR. The first thing I would check though is the connections of each by removing all devices and plugging them in one at a time while testing. It is possible one of your devices is causing this.
Cause of screen burn typically is pixels are no longer showing full range of color. Typically a shop would cycle screens or blocks of very bright colors alternating colors to unstick any pixels not showing full range of some color. Setting tv back to factory default then adjusting could help also turning up brightness. Change color settings from cool to warm could help. Could also be a refresh rate. Verify tv is set to display at same rate as input device like cable box set to output 1080i while tv native is 720p. Just because there is a pic doesn't mean they are synced.if tv has to convert signal from 1080i to 540i then resize to fit 720p tv it may slow refresh rate tv is trying to display progressive scan image but not enough data is coming in so it redisplays previous image on every other line.and new data on every other line.
solution is check output video settings of source to match native resolution of tv. Hd cable box this is common as tech sets output to high resolution 1080i most inexpensive tv are 720p
Either its back light inverter board, or, the LVDS cable has the fault. First try by re-seat the LVDS cable, and check. Thus you can make sure about the fault. If
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Thats a pixel data problem, there's no data being sent to that row of pixels so they don't change color. This is a pixel address registry (PAR) issue and the PAR circuits need to be serviced its usually due to open or shorted SMT components on the PAR circuits. PAR also sends data, voltage, and control to each pixel, the green line you see are pixels that have voltage but because there's no data sent too them their all green because there's no control. If the pixels have voltage but no data or control they show up as green red, blue, yellow, or whit line vertically down the LCD panel. The vertical-horizontal section of PAR are controlled by 16 to 32 bit micro-controllers which may need replacing. If its under warranty take it back if not have your local repair center fix the tv for you...
sounds like you have some lines of dead pixels, is this an LCD screan or a plasma screen? if it's LCD then it is dead or stuck pixels, check your owners manual and there should be a section on stuck pixels if its and LCD tv.
You might have a Service Co. come out and look at it. It sounds like the Z module is not doing it's job of erasing all prior images after a scene change. Some models there are adjustments for that internally. ( only for a tech ) Start a paper trail now.
u need 2 change ur pixels 2 1024 by 768 in display settings then click the screen with 2 on and extended ur display to it ,then open windows mobility center and click connect display this will open a screen with 3 options chose the bottom 1 use external display only or sum think like that this should work once u have ur display showing on ur tv then click connect display again and chose the top option and u should get ur display on both screen let me know if this solves ur prob it worked 4 me regards davy ps if u plug in and loose control of ur lap top i think uv already selected use external display only try changing ur pixel 2 1024 by 768 and try again if not u need 2 plug into different tv nd change this if u have any more probs with this let me know this prob had my head dun in 4 days tryed the tech guys nd they said my tv port was broke liers(there a wast ov time)