Samsung SMART TV E-Manual page 137

The problem
Broadcasting
The option
has been deactivated.
The settings are lost after
5 minutes or every time the
TV is turned off.
There is an intermittent loss
of audio or video.
There are small particles on
the TV's bezel.
The PIP menu is not
available.
A POP (TV's internal banner
ad) appears on the screen.
The TV is making a popping
noise.
The TV is making a
humming noise.
Try this!
Broadcasting
is only available when the
Broadcasting
The menu cannot be accessed while you watch TV using a cable box
or satellite receiver.
Broadcasting
The menu cannot be accessed while a recording is in progress or the
Time Shift function is running.
Use Mode
If the is set to
automatically reset every 5 minutes.
Use Mode
Change the
Check the cable connections and reconnect them.
Loss of audio or video can be caused by using overly rigid or thick cables.
Make sure the cables are flexible enough for long term use. If you are mounting the
TV to a wall, we recommend using cables with 90-degree connectors.
This is part of the product's design and is not a defect.
PIP
functionality is only available when you are viewing video from an HDMI or
Component source on the main screen.
Use Mode
Change the
The expansion and contraction of the TV's outer casing may cause a popping noise.
This does not indicate a product malfunction. The TV is safe to use.
Your TV utilizes high-speed switching circuits and high levels of electrical current.
Depending on the TV's brightness level, the TV may seem slightly noisier than a
conventional TV.
Your TV has undergone strict quality control procedures that meet our demanding
performance and reliability requirements.
Some noise coming from the TV is considered normal and is not an acceptable
cause for an exchange or refund.
Source
Store Demo, the TV's audio and video settings are
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is set to TV.
Use Mode) to Home
Use Mode) to Home
Use.
Use.