From what I can see it seems that the right hand half of the screen is intermittently brighter than the left. If this is a relatively new TV the backlight will be provided by a row of LEDs along the bottom of the screen (or maybe the top), and it would appear that half of them are not functioning correctly. This could be a bad connection or a bad solder joint, but if it's in the screen itself, my guess is that it'd be hard to fix. But it's possible that there are 2 separate circuits, each providing the current to half the LEDs, and one may be failing.
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If your television has image distortion issues, see the [https://www.ifixit.com/Wiki/Insignia_NS-24ER310NA17_Has_Image_Distortion|Insignia NS-24ER310NA17 Has Image Distortion problem page] for possible causes and solutions.
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If you take the back off you may be able to locate the wires running from the LED drivers to the screen. These will be distinct from the cable or ribbon (s) taking the picture to the screen. Hence, if you can locate 2 identical groups of components, being the drivers for the LEDs, look for any differences between them such as signs of overheating or [https://therestartproject.org/wiki/Basic_electronic_components#Fault-finding_and_Repair_3|swollen electrolytic capacitors]. These may be relatively easily replaced.
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From what I can see it seems that the right-hand half of the screen is intermittently brighter than the left. If this is a relatively new TV the backlight will be provided by a row of LEDs along the bottom of the screen (or maybe the top), and it would appear that half of them are not functioning correctly. This could be a bad connection or a bad solder joint, but if it's in the screen itself, my guess is that it'd be hard to fix. But it's possible that there are 2 separate circuits, each providing the current to half the LEDs, and one may be failing.
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However, if the problem is more a difference in colour than a difference in brightness between the two halves of the screen then this could be harder to fix. The only thing I can think of that you could try would be if you can locate one or more wide ribbon cables running from the circuit boards to the screen, you could re-seat the ribbons in their sockets. The sockets frequently have a clamping bar which you have to lift or pull out, but be gentle because if you break it you'll have yet another hard problem to solve.
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If you take the back off you may be able to locate the wires running from the LED drivers to the screen. These will be distinct from the cable or ribbon (s) taking the picture to the screen. Hence, if you can locate 2 identical groups of components, being the drivers for the LEDs, look for any differences between them such as signs of overheating or [https://therestartproject.org/wiki/Basic_electronic_components#Fault-finding_and_Repair_3|swollen electrolytic capacitors]. These may be relatively easily replaced.
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However, if the problem is more a difference in color than a difference in brightness between the two halves of the screen then this could be harder to fix. The only thing I can think of that you could try would be if you can locate one or more wide ribbon cables running from the circuit boards to the screen, you could re-seat the ribbons in their sockets. The sockets frequently have a clamping bar which you have to lift or pull out, but be gentle because if you break it you'll have yet another hard problem to solve.
From what I can see it seems that the right hand half of the screen is intermittently brighter than the left. If this is a relatively new TV the backlight will be provided by a row of LEDs along the bottom of the screen (or maybe the top), and it would appear that half of them are not functioning correctly. This could be a bad connection or a bad solder joint, but if it's in the screen itself, my guess is that it'd be hard to fix. But it's possible that there are 2 separate circuits, each providing the current to half the LEDs, and one may be failing.
If you take the back off you may be able to locate the wires running from the LED drivers to the screen. These will be distinct from the cable or ribbon (s) taking the picture to the screen. Hence, if you can locate 2 identical groups of components, being the drivers for the LEDs, look for any differences between them such as signs of overheating or [https://therestartproject.org/wiki/Basic_electronic_components#Fault-finding_and_Repair_3|swollen electrolytic capacitors]. These may be relatively easily replaced.
However, if the problem is more a difference in colour than a difference in brightness between the two halves of the screen then this could be harder to fix. The only thing I can think of that you could try would be if you can locate one or more wide ribbon cables running from the circuit boards to the screen, you could re-seat the ribbons in their sockets. The sockets frequently have a clamping bar which you have to lift or pull out, but be gentle because if you break it you'll have yet another hard problem to solve.