Motorola xfinity RNG150N User Manual page 54

7 TROUBLESHOOTING
Problem
No graphics or
program
guides appear
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 Solution
If you use the IEEE-1394 connection, on-screen
graphics, including closed captions and program
guides, are not displayed by the RNG set-top. On-
screen graphics and captions may still be overlaid
by your TV, if enabled. Alternatively, use HDMI or
component video instead.
Verify on the User Settings menu that closed
captions are enabled on the RNG set-top.
Verify that closed captions are enabled on the TV.
Note: Closed captioning may not be available on
the current program.
Wide screen TVs display 4:3 programs in this
format unless set to Stretch. Turn on the 4:3
OVERRIDE feature in the User Settings menu.
This enables most wide screen TVs to stretch the
video to fill the screen (see your TV manual for
information about stretching 4:3 video).
•
If the RNG150N is connected to a wide
screen TV, verify that the TV TYPE is
set to 16:9 in the User Settings menu.
Many HD programs are broadcast in pillar-box
format with black bars to the left and right of the
picture. These programs are broadcast in 16:9 HD
formats even though the video is not 16:9.
All 4:3 HDTVs display HD programs in letterbox
format (black bars above and below the picture)
because of the shape of the display screen.
•
Turn on the 4:3 OVERRIDE feature in
the User Settings menu. This enables
most standard screen TVs to display a
full screen picture when the RNG150N
is tuned to a 4:3 program.
•
Set the TV TYPE to 4:3 Pan-Scan. This
enables the RNG150N to remove the
black bars above and below the picture
when possible.
Some SD programs are broadcast in the letterbox
format with black bars above and below the
picture. Some widescreen 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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