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Troubleshooting
Please make these simple checks before calling service. These tips may save you time and
money since charges for receiver installation and adjustments of customer controls are not
covered under your warranty.
Symptoms Items to Check and Actions to follow
“Ghost ” or double image *This may be caused by obstruction to the antenna
due to high rise buildings or hills. Using a highly
directional antenna may improve the picture.
No power * Make sure turn on AC power switch.
*Check that the TV’s AC power cord is plugged into
the mains socket.
*Unplug the TV, wait for 60 seconds. Then re-insert
plug into the mains socket and turn on the TV
again.
No TV picture *Check antenna connections at the rear of the TV
to see if it is properly connected to the TV.
*Possible broadcast station trouble. Try another
channel.
*Adjust the contrast and brightness settings.
*Check the Closed Captions control. Some TEXT
modes could block the screen.
Good picture but no sound *Increase the VOLUME.
*Check that the TV is not muted; press the button
on the remote control.
Good sound but poor color *Adjust the contrast, color Î(Saturation) and
brightness settings.
Poor picture *Sometimes, poor picture quality occurs when
having activated an S-VHS camera or camcorder
connected and having connected another
peripheral at the same time. In this case switch off
one of the other peripherals.
Snowy picture and noise *Check the antenna connection and TV signal
level.
Horizontal dotted line *This may be caused by electrical interference (e.g.
hairdryer, nearby neon lights, etc.)
*Turn off or move away the equipment.
Television not responding to
remote control
*Check whether the batteries are working. Replace
if necessary
*Clean the remote control sensor lens on the TV.
*You can still use the buttons at the front of your
TV.
*Select the TV mode to be sure your remote control
is in the TV mode.
ViewSonic N3290w/N4290p/N4790p 25
ENGLISH