Vizio VL470M User Manual page 55

General TV Problems
You cannot see a picture.
You see a distorted picture or
hear unusual sound.
The picture has abnormal
patterns.
The display image does not
cover the entire screen.
You can see a picture but you
cannot hear sound.
The TV has pixels (dots) that
are always dark or colored.
You see "noise" or "trash" on
the screen.
You switch to a different input
and the volume changes.
You switch to a different input
and the screen size changes.
Tips for High-Definition Users.
Version 3/25/2009
!
If HD content is not available view "Standard Definition" from a digital source.
!
Standard, analog TV will always be noticeably inferior to HD because your
digital flat panel TV has video that is many times better than old TV so you will
see interference and deficiencies you did not know you had.
!
Make sure the power button is ON (VIZIO logo glows white).
!
Make sure AC power cord is securely connected to the AC socket.
!
Press the INPUT button on the remote control to select a different input source.
!
Check the connections of external devices that may be connected to the HDTV.
!
If your HDTV is connected to a computer, press any button on your keyboard to
"wake" your computer.
!
If you are using an antenna, the signal strength of the channel may be low.
Make sure your antenna is connected securely to the TV and move the antenna
around the room or close to a window.
!
You may be getting interference from electrical appliances, cars, motorcycles,
or fluorescent lights. If you have not mounted it on the wall, try moving your
HDTV to another location to see if this is the cause of the problem.
!
Check the connections of external devices that may be connected to the HDTV.
!
Make sure the specifications of external devices meet the specifications of your
HDTV (i.e. resolution).
!
If you are using an antenna, the signal strength of the channel may be low.
Make sure your antenna is connected securely to the TV and move the antenna
around the room or close to a window.
!
If you are in RGB mode (Computer), make sure that H-Size and V-Position in
the On Screen Display (OSD) are set correctly.
!
If you are using TV, AV1, AV2 or Component with 480i input, press WIDE
button on the remote control to scroll through various screen modes.
!
Press Volume + (Up) on the remote control.
!
Press MUTE on the remote control to make sure that MUTE is not ON.
!
Check your audio settings. The audio may be set to SAP, or the speakers are
set to off.
!
Make sure that headphones are not connected.
!
Check the audio connections of external devices that may be connected to the
HDTV.
!
Your HDTV is manufactured using an extremely high level of precision
technology, however, sometimes some pixels of your HDTV may not display.
Pixel defects within industry specifications are inherent to this type of product
and do not constitute a defective product.
!
When your HDTV's digital capabilities exceed a digital broadcast signal, the
signal is up-converted (increased) to match your TV's display capabilities. Up-
converting can cause noise or trash.
!
If you are using an antenna, the signal strength of the channel may be low.
Make sure your antenna is connected securely to the TV and move the antenna
around the room or close to a window.
!
The TV remembers the volume level from the last time you adjusted it. If the
sound level is higher or lower from another source, then the volume will change.
!
The TV remembers the viewing mode from the last time you used a particular
input (AV-1, AV-2, Component, HDMI and TV).
!
Your HDTV is an ideal platform for viewing High Definition Content.
55
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