ViewSonic N4290p Specifications download pdf (Page 27)

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

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ViewSonic N4290p Specifications Page 27

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