Samsung H5500series E-Manual page 181

The Problem
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.
Use Mode (MENU
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.
Try this!
Support Use Mode) to
> >
Home Use.