Motorola DCH70 User Manual page 25

5 TROUBLESHOOTING
Problem
There is no audio
when viewing
cable channels.
There is no video
on the TV screen.
No closed
captions display.
There are black
bars to the right
and left of the
picture.
There are black
bars above and
below the
picture.
Possible Solutions
•
Verify that the Mute button on the remote control
has not been pressed. Press mute on the remote
control to restore sound.
•
If the DCH receiver audio output is connected to the
TV, verify that the Mute button on the TV has not
been pressed.
•
If the DCH receiver audio output is connected to a
home theater receiver, verify that the receiver is set
to the appropriate input source and the Mute button
on the receiver has not been pressed.
•
Verify that you have the correct cables for the audio
connections.
•
Verify that the audio cables are firmly connected
between the DCH receiver and the audio playback
device (TV, receiver, DVD player, etc.).
•
Verify that the TV is powered on and set to the
appropriate input source for the DCH receiver.
•
Verify that the DCH receiver is powered on and
tuned to an authorized cable channel.
•
Verify that all video cables between the DCH
receiver and the TV are firmly connected.
•
Verify that the coaxial cable feed is firmly connected
to the DCH receiver and the wall jack.
•
If the DCH receiver video output is connected to a
home theater unit, verify that the home theater unit
is powered on and set to the appropriate input
source.
•
Verify that closed captions are enabled on the TV.
•
Closed captioning may not be available on the
current program.
•
Wide-screen TVs display 4:3 programs in this format
unless set to Stretch (see your TV manual for
information about stretching 4:3 video).
•
Some SD programs are broadcast in the letterbox
format with black bars above and below the picture.
Some wide-screens TVs offer a zoom feature that
may be able to remove the black bars (see your TV
manual for information about zooming 4:3 video).
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