Samsung QN75QN8 B Series User Manual page 229

Press the button, select
source.
If the same problem persists, run a diagnostic test. On the remote control, press the
Select Menu
Select Menu
Connected Devices
Connected Devices (
Settings
Settings Support
Support
Settings Support
Menu Connected
Device Care Self Diagnosis
Support
Device Care
Device Care Self Diagnosis
- 205 -
Devices), choose another input
button.
Picture Test.
Try Now
Picture Test.
Try Now