ViewSonic CD4200 Guide De L'utilisateur page 49

Picture is light or improperly tinted.
The picture is too dark.
Remote control does not work.
There are stripes on the screen or colors fade.
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▪ Check the Hue, Saturation and Color adjustments.
▪ Reset the LCD to the factory default settings.
▪ Select a different APC mode.
▪ Check the Brightness of Picture Settings.
▪ The fluorescent lamp may have reached the end of its life.
Contact an authorized service center.
▪ Install new batteries.
▪ Make sure the remote sensor window isn't blocked.
▪ Make sure the system is in the right mode (TV / VCR / CBL /
AUX)
▪ There may be interference from other appliances.
▪ There may be interference between the video source cable and
the power cable.
▪ Make sure the power and video cables are not touching.
Check the Hue, Saturation and Color adjustments
ViewSonic CD4200