Motorola DCX3400 Series User Manual page 38

There is no audio
from the center
and/or surround
speakers of a home
theater receiver
connected to the
DCX set-top
There is no video on
the TV screen
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
8 • Troubleshooting
Not all programs feature full Dolby Digital [5.1] or Dolby Digital
Plus [7.1] surround sound. In some cases, the programs may
only contain left and right stereo audio.
•
Verify that the HDMI or S/PDIF cable (coaxial or optical) is
firmly connected to the DCX set-top and the home theater
receiver.
•
Verify that the home theater receiver is set to a surround
sound audio mode (Dolby Pro Logic
®
Dolby Pro Logic IIx ).
•
Verify that the receiver is properly configured to work with all
connected speakers.
Verify that the TV is powered on and set to the appropriate
input source for the DCX set-top.
Verify that the DCX set-top is powered on and tuned to an
authorized cable channel.
Verify that all video cables between the DCX set-top and the TV
are firmly connected.
Verify that the coaxial cable feed is firmly connected to the DCX
set-top and the wall jack.
•
If the DCX set-top 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.
•
If the DCX set-top video output is connected to a TV through
an HDMI connection, power off the TV and then power off
the DCX set-top. Wait one second and then power on the
devices.
Not all HDTVs can display every output format (1080i, 720p,
480p, or 480i) available on the DCX set-top. Refer to your TV
manufacturer's documentation to determine the compatible
format for your TV and set the corresponding output format for
the set-top on the IPG.
If you use the IEEE-1394 connection, on-screen graphics,
including closed captions and program guides, are not displayed
by the DCX 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 IPG menu, that closed captions are enabled.
If you are using the RF out connector, 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.
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.
® , Dolby Pro Logic II ® ,
B
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