Viewsonic VT4236LED Guia Do Utilizador

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

• Make sure the AC power cord is properly connected to the wall outlet.
• Plug another electrical device (like a radio) to the power outlet to 

verify that the outlet is supplying the proper voltage.

• The TV station may be experiencing problems. Try another channel.
• The Cable TV signal may be scrambled or encoded. Please contact 

your local cable operator.

• Make sure that the cable connection to other components are properly 

installed.

• Make sure that setup has been done correctly after connections.
• Make sure the correct input is selected and the input signal is 

compatible.

• Ensure that the video cable is securely connected.
• The picture may appear dim in a brightly lit room.
• Adjust the display settings.
• Check the input signal setting.

• Check your audio connections to other components are properly 

installed.

• The MUTE button may have been pressed, try pressing this button 

again.

• Check your audio settings, your TV audio may be set to minimum.
• Press VOL + on the remote control.