Samsung QB65H-TR User Manual page 89

Screen issue
I see red, green, and blue.
The display looks unstable and then freezes.
The screen cannot be displayed in full screen.
Sound issue
There is no sound.
The volume is too low.
Check the cable connections. This issue may happen when the panel of the product is
defective.
Contact a Samsung Service Centre to resolve the issue.
The screen may freeze when a resolution other than the recommended resolution is used or
if the signal is not stable. To resolve the issue, change the PC resolution to the recommended
resolution.
A scaled SD (4:3) content file can cause black bars on both sides of an HD channel screen.
A video with an aspect ratio different from the product can cause a black bar to appear at the
top and bottom of the screen.
Change the screen size setting to full screen on the product or source device.
Check the connection of the audio cable or adjust the volume.
Check the volume.
Adjust the volume.
If the volume is still low after turning it up to the maximum level, adjust the volume on your PC
sound card or software programme.
89