Antenna - BenQ DV3250 User Manual

There is no picture or sound,
just noise.
Picture is not clear.
No sound.

Antenna

Symptoms
The picture is not sharp or the
picture moves contains image
movement.
The picture is doubled or tripled
The picture is spotted
There are stripes on the screen or
colours fade
38 Troubleshooting
• Make sure the antenna cable is properly connected.
• Change channels to confirm if the symptom is still present.
• Make sure the antenna cable is properly connected.
• Change channels to confirm if the symptom is still present.
• If PC is selected as the input signal source, use the Auto
function in the PC Menu to let the TV adjust picture auto-
matically.
• Check whether you have selected Mute for Audio setting.
• Make sure the volume is not set to minimum.
• Check the AV cables for disconnection.
Possible Causes
• The reception may be weak.
• Change channels to confirm if the symptom is still present.
• Make sure the outside antenna is not disconnected.
• Make sure the antenna is facing the right direction.
• Make sure the antenna is facing the right direction.
• Picture ghosting is caused by reflections from buildings,
large metal structures and mountains. Carefully realign
your antenna to minimise the ghost images. Ultimately a
higher quality antenna professionally installed may be
necessary to reduce the ghosting.
• There may be interference from automobiles, trains, high
voltage lines, neon lights, etc.
• There may be interference between the antenna cable and
power cable. Try positioning them further apart.
• Is the display receiving interference from other devices?
Transmission antennas of radio broadcasting stations and
transmission antennas of amateur radios and cellular
phones may also cause interference.
• Use the display as far away as possible from devices that
may cause possible interference.