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Perfect TV, except not capable of displaying 4K input properly!!!
on December 4, 2013
After returned a defective-on-arrival Seiki 39" 4K TV, I turned to TCL, hoping to have a better luck.
After unboxing and routing testing under 1080p, I found this TV to be superior than Seiki on the following aspects:
1. Much nicer looking frame, perfectly flat, and less glares;
2. Better 2K->4K up-conversion picture quality;
3. No dead pixels, no weak pixels, zero!
But things turn up-side-down when I started 4K testing. When I switched to the advertised native resolution (3840x2160), all I got is a cropped, blurry image! It looks like the original 4K input has been scaled down to 2K in 4:3 aspect, and then scaled back to 4K.
I tried to adjust every possible options in the menu (including every options in the service mode menu), none helped. I also tried all 4 HDMI input, none helped. I tried 4K input from three different computers (all worked with my previously returned Seiki TV), all show the same phenomenon (blurry image, cropped at top and bottom).
It seems that this TV is not capable to properly displaying 4K input signal at all!
Since I am quite satisfied with all other aspect of this TV, I will try to contact TCL support first to see if there is a fix to this problem. But if this issue could not be resolved, I would have no choice but return it to Amazon again :( -- 4K TV couldn't display 4K input? What a joke...
Took a picture of the TV showing at 4K (3840x2160) [...]
The down-scaling of the input is very obvious -- you can hardly recognize the text on the screen!
Update: the contact page of TCL USA webite ([...] is non-functional. I typed up my issue and click "submit", and it shows "loading..." forever. Never received email confirmation that my issue was received.
Kinda have a bad feeling about this... I will try email USsupport@tcl.com directly. If I don't hear anything back in a week, I will have not choice but return it...
Final update: 4 days have passed, and got nothing from TCL support. I decided to gave up waiting and return it, to avoid the Christmas shipping craze. Had the 4K input actually work, this TV would have gotten a 5-star from me... :(