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TCL 55S405 moving horizontal lines

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19K views 1 reply 2 participants last post by  totalkonfuzion  
#1 ·
I bought a TCL model #55S405 back in January. I know it's a budget TV and I'm not expecting it to be a high-end tv. But recently I have noticed some horizontal lines that move slowly up from the bottom to the top of the screen.
It's mostly only noticeable with gray screens.

I took a video, and converted to GIF, to demonstrate what I'm seeing.

I'm pretty sure it didn't do this from the beginning but maybe I just didn't notice. If I turn the brightness way up it lessens the problem but I don't want to keep it so bright.

Any thoughts? Is this defective and should I contact TCL?


Here is the GIF. I realize it's not the sharpest but you can still see the lines scrolling upwards.

https://imgur.com/a/L2MD1MS
 
#2 ·
I just started noticing this on my 49S405 that I bought back in November of last year. I didn't notice it until recently either. Could this be the April firmware that caused it? My issue is almost identical to yours, but my line is a little thinner.

Edit:

Probably not the firmware and was always there, based on these reddit posts from last year.

https://www.reddit.com/r/xboxonex/c.../7d4qsg/tcl_49s405_faint_horizontal_lines_scrolling_up/?st=jhsa952o&sh=5c9c9701


Turning the brightness to "Brighter" and the backlight to 100 fixes the problem, as I can't detect the lines anymore. I do notice vertical lines though when my xbox is on the dashboard. I'm thinking we've just never noticed these before, but now I can't unsee it!