Antenna Problems - BenQ SJ4231 User Manual

Description
The image is not
clear.

Antenna problems

Description
The image is not clear
or is jiggling.
Ghost image.
The image is snowing.
Strips or faded color.
49
Reference
Possible Reason
• Chect if the antenna cable has been correctly
connected.
• Switch to other channel to see if the proble still
persist.
• If the source is a PC, perform an auto adjust
operation from the Picture menu, and set the
aspect ratio of your TV to 4:3.
• The signal could be too weak. Switch to other
channels to see if the problem still persist.
• Chcek the connection and integrity of the
antenna cable.
• Check the antenna direction. In the case of a
outdoor antenna, you should let a qualified
and experienced professional to conduct the
checking and adjusting.
• Check the antenna direction.
• The ghost image is caused by the signal
reflection from buildings, metal structures, or
mountain. It requires properly aligned antenna
to reduce the ghost image to minimum
requires d sound, and such alignment may
require an antenna specialist.
• It may be caused by the interference from
automobiles, trains, high voltage circuit, neons
etc.
• Move anything that could cause interfereence
away form the remote control and TV.
• It may caused by the interference from radio
broadcasting, amateur radio communication,
mobile phone communication.
• Keep away any device that could generate
interfering signal.
Possible Reason