Vizio M420VT User Manual page 45

General TV Problems
Power is ON but there is no
image on the screen.
Wrong or abnormal colors
appear.
Control buttons do not work.
Remote control does not
work.
There appear to be image
quality issues.
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
Version 4/29/2010
HDTV.
•
Make sure all cables attached to your HDTV are connected to the correct output
on the external device.
•
Adjust brightness, contrast or backlight.
•
Press the INPUT button on the remote control to select a different input source.
•
Check Color and Tint settings in Picture Menu.
•
Reset Picture settings.
•
Check the video cables to make sure they are securely connected.
•
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 (in the case of indoor antenna use).
•
Press only one button at a time.
•
Point the remote control directly at the remote sensor on your TV.
•
Remove any obstacles between the remote control and the remote sensor.
•
Replace dead batteries with new ones.
•
Make sure you have selected TV mode on the remote control.
•
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 (in the case of indoor antenna use).
•
For best image quality, view HD wide-screen programs where possible.
•
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.
•
Make sure AC power cord is firmly connected to a live outlet.
•
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 your
HDTV.
•
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 (in the case of indoor antenna use).
•
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 your
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 (in the case of indoor antenna use).
•
If you are in RGB mode (Computer), make sure that H-Size and V-Position in
the on-screen menu are set correctly.
•
If you are using TV, AV or Component with 480i input, press MENU button on
the remote control and scroll to Wide on OSD menu.
•
Press Volume (Up) on the remote control.
45
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VIZIO M420VT/M470VT User Manual
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