Set-Top Box User Guide

6 TROUBLESHOOTING
20
Problem Possible Solutions
There is no video
on the TV
screen.
• 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.
No closed
captions display.
• Verify that closed captions are enabled on
the TV.
• Closed captioning may not be available on
the current program.
There are black
bars to the right
and left of the
picture.
• 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).
There are black
bars above and
below the
picture.
• 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).