gray pixels on my 2 yr old LG 4k tv
Could you help me determine the cause of this?
TV LG 65La9700 with 65LA9700-UA.AUSZSVX 4k upgrade kit.
this problem showed up little over a year after the upgrade.
it is not consistent in all video modes, and a power cycle will reset issue, but it returns over a period of time, and depending on the input source, may or may not come back, see below..
the gray box typically shows up 3-5 min after the tv signal is turned on. however on HDMI 1 it is very random it may show up, may not.
-HDMI 1 everything works rarely any gray out pixel block with 1080p/4k video signal
-HDMI 2 gray pixels with 1080p video signal no 4k available on this input
-HDMI 3 gray pixels with 1080p video signal no 4k available on this input
-internal streeming apps with no Hdmi input.. gray box, randomly but takes much longer to show up.
HDMI 1 UHD input source is ok not gray box.
I tried all HDMI 1080p signals with 2 different cables and the result was the same.
IT sounds like the Mainboard being it carries with inputs and the onboard apps such as (Netflix HD/UHD and Amazon Prime Video in HD or UHD) or could it be the T-con board? or LED boards?
Update (01/25/2017)
Is this it?
Is dit een goede vraag?
16 opmerkingen
Hi,
Just wondering if you have the latest firmware installed and whether it would make a difference at all? Here is a link.
http://www.lg.com/us/support-product/lg-...
It doesn't mention that it fixes your problem but it wouldn't be the first time that something was forgotten to be mentioned
door jayeff
Yes it it up to date, TV set to automatically update
door 2kvfr800
Any other ideas? Please?
door 2kvfr800
Hi,
Wondering if it is suffering from the effects of localized "blooming".
Can you/have you tried turning down the backlighting, if you have that option and see if it reduces the incidence or resolves it?
door jayeff
i turned back lighting off and it still doesn't affect it, it doesn't go away.
Any other ideas?
door 2kvfr800
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