KS8000 PWM Headache - AVS Forum | Home Theater Discussions And Reviews
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post #1 of 4 Old 01-07-2020, 06:44 AM - Thread Starter
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KS8000 PWM Headache

Hello,

My wife has been complaining about the Samsung KS8000 giving her a headache. I realized that it could be because the TV has an extremely low PWM frequency (120 Hz). My kids also watch this TV and they are too small to realize if they are getting a headache or eye strain.

Question: Is it possible to adjust the PWM frequency using the service menu?

BTW: Screw samsung for using such a low PWM frequency on their TVs. I wonder how many other people are keep getting headaches not realizing why.
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post #2 of 4 Old 01-07-2020, 09:49 AM
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Originally Posted by dude101 View Post
Hello,

My wife has been complaining about the Samsung KS8000 giving her a headache. I realized that it could be because the TV has an extremely low PWM frequency (120 Hz). My kids also watch this TV and they are too small to realize if they are getting a headache or eye strain.

Question: Is it possible to adjust the PWM frequency using the service menu?

BTW: Screw samsung for using such a low PWM frequency on their TVs. I wonder how many other people are keep getting headaches not realizing why.
why not post this in the KS8000 owners thread ?


I have sensitive eyes and I have no issues with the PWM frequency (for non HDR images, I have the BL at 10) .. make sure you have BFI disabled as that flickers extremely
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post #3 of 4 Old 01-07-2020, 12:30 PM
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I’m normally effected by PWM OLED screens on smart phones but I’ve had the KS8000 since 2016 and it’s never effected me. Didn’t know QLED used PWM.


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post #4 of 4 Old 01-07-2020, 03:34 PM
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Originally Posted by danwestbrook View Post
Didn’t know QLED used PWM.

PWM is pretty much the only way to dim LED's in a controlled way. LED's need a precise voltage and current to operate in a given way ... So you can't just change the voltage/current like on old incandescent light bulbs.
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