Join Date: Dec 2018
Location: India/Working abroad
Mentioned: 7 Post(s)
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Not a pleasant experience on A9F day one. Initially i was wowesd by the picture quality, which i think is a visible improvement over the lg c8 i had and sold earlier this year, but 4 or 5 hours into watching content on the youtube app, suddenly on a video with black bars a white pixel appeared on the lower part of the top bar. It looked like a bright white light emitting pixel, i was watching with brightness only set to 20. I switched off the tv , unplugged from the power outlet and plugged it again, the white light emitting pixel was still there. I was a little surprised to see this as i havent seen this on oled before or heard a story about it on the internet. The firmware version was latest, i thought about doing a pixel refresh. I didn't know how to check hours on this tv and i did not know if an auto comp cycle that runs after 4 hours had completed, so decided to go and run the manual panel refresh from the settings that takes an hour to complete. I let it run for an hour, message came up that pixel refresh has completed, but as i looked at the screen in that area, that white pixel had not budged.
I called the dealer and told him i needed a tv replacement, he informs me they are out of stock with the 65 A9F and dont know when they would get it back. He told me to call sony to replace my panel on the tv after hearing my issue. Called sony and a technician visited within hours, he saw it and said this is a permanently stuck pixel casting a white emitting light and has stopped casting color, it wont go away with refresh cycles. I said then replace my panel. He said he'll discuss with the sony management and call me tomorrow. Today he called me that my panel replacement has been approved, it will take a few days to procure the panel, ETA given is 3 days, once the panel arrives at their office, they'll arrange a free truck pickup at my house to take the tv, then in 1-2 days the panel will be changed and the tv delivered back to my house. Fingers crossed that the new panel doesnt have any such defect. Im already wary of running those 'black screen test' videos on youtube.
I am being told that i can still continue watching the tv while the panel replcement is ordered, though that white thing is distracting.Ignoring that though, the picture quality on the tv is awesome and everything else is working fine, i watched some clips of The Revenant 4k blu ray, this tv's always on dynamic tone mapping in conjunction with pixel contrast booster actually results in perceptually brighter specular highlights compared to the lg c8 i had, even though the a9f only measures a little over 600 nits on a hdr 10% window, so that number doesnt really tell the full story, as vincent teoh also pointed out in his review.
Last edited by Menarini; 06-11-2019 at 05:59 AM.