Antenna; Troubleshooting - BenQ DV2680 User Manual

There is no picture or sound,
just noise
Picture is not clear
No sound
Some lines occur at the bottom
of pictures when playing VHS
tapes
The video picture is abnormal
The PC picture is abnormal

Antenna

Symptoms
The picture is not sharp or the
picture moves
The picture is doubled or tripled
The picture is spotted
There are stripes on the screen or
colors fade
• Make sure the antenna cable is properly connected.
• Consider whether TV signals are being properly received.
• Make sure the antenna cable is properly connected.
• Consider whether TV signals are being properly received.
• Check whether you have selected Mute for Audio setting.
• Make sure the volume is not set to minimum.
• Make sure that headphones are not connected.
• Check cables for disconnection.
VHS tapes sometimes can't provide stable pictures when
playing or pausing. And the unstable pictures may cause the
television to display incorrectly. If this situation happens,
please press "i" key on the remote controller to let the televi-
sion check the signal again and display the pictures correctly.
Press "i" key on the remote control to force the television to
check the signal system again and auto select the correct video
system.
Press the "i" key on the remote control. If this causes no
improvement, try a few more time. If the picture still does not
improve, enter "Setup" in the OSD menu, and select PC &
HDTV to adjust phase, H.position or V. position.
• The reception may be weak.
• The state of the broadcast may also be bad.
• 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.
• There may be reflected electric waves from mountains or
buildings.
• 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 television 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 television as far apart as possible from devices that
may cause possible interference.
Possible Causes

Troubleshooting

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