VIEWSONIC VS13772-1M - Manual (Page 38)

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Other Information
ENGLISH
ViewSonic VT3210LED/VT4210LED
Troubleshooting
Please contact ViewSonic service team directly if you have questions, service needs, or require
technical assistance related on the use of your television. Contact ViewSonic Service Team at:
http://www.ViewSonic.com
Or call our service team:
United States 1-800-688-6688
Canada 1-866-463-4775
Before calling a service technician, please check this chapter for a possible cause of the problem and
some solutions you can try.
Problem Possible Solution
Black box on-screen
•
The closed caption feature is set to one of the Text modes (T1, T2,
T3, or T4). Set the closed caption feature to Off (page 29).
TV stops responding to controls
• If the TV stops responding to the controls on the remote control or
TV control panel and you cannot turn off the TV, please unplug the
power cord few seconds then re-plug to try again.
Other problems
• If your TV’s problem is not addressed in this Troubleshooting
section or the recommended solution has not worked, use the
Restore Factory Defaults procedure (page 32).
TV will not turn on
• Make sure the power cord is plugged in, and then press POWER.
• The remote control batteries may be dead. Replace the batteries or
try the control panel buttons.
Picture problems
General picture problems
• Check the antenna/cable connections.
• Press INPUT on the remote control or TV and select a valid video
input source (page 23).
If no device is connected to a particular input on the TV, no picture
will display when you select that particular input source. For device
connection details, see
Connecting the LED TV (page 17).
• Antenna reception may be poor. Use a highly directional outdoor
antenna (if applicable).
• The station may have broadcast difficulties. Try another channel.
• Adjust the picture qualities (page 25).
Noisy picture
• If you are watching an analog channel (offair broadcast or Cable
TV), you can set the DNR feature to reduce visible interference in
the TV picture (page 26).
Video Input Selection problems
• If the Input Selection window does not appear when you press
INPUT on the remote control or TV, press INPUT a second time,
which will change to the next video input source and display the
Input Selection window.