Samsung LED 7500 series E-Manual page 175

There is something wrong
with the TV.
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.
Image Retention (Burn
In) Issue
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 using an HDMI or Component
source.
Change Use Mode (Support
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, and depending on the brightness level being used 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.
This issue affects PDP TVs only. Watching TV for an extended period of time or
using the 4:3 screen ratio only may result in burn-ins.
PDP TVs are equipped with Pixel Shift screen burn reduction technology. Pixel
Shift technology reduces screen burn-ins in PDP TVs.
It does this by moving the picture slightly vertically or horizontally.
Use Screen Burn Protection (System
burn-ins.
Try this!
> Use Mode) to Home
> Screen Burn
Use.
Protection) to prevent screen