Arris DCX3520e-M Installation Manual page 94

Troubleshooting
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
High-Definition DVR DCX3520e-M • Installation Manual
365-095-25080-x.1
Verify that the TV is powered on and set to the appropriate input source for the
•
DCX3520e-M.
Verify that the DCX3520e-M is powered on and tuned to an authorized cable
•
channel.
Verify that all video cables between the DCX3520e-M and the TV are firmly
•
connected.
Verify that the coaxial cable feed is firmly connected to the DCX3520e-M and the wall
•
jack.
If the DCX3520e-M 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 DCX3520e-M video output is connected to a TV through an HDMI connection,
•
power off the TV and then power off the DCX3520e-M. 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 DCX3520e-M.
1. Ensure that your DCX3501 is plugged into a power outlet and is turned off.
2. Press the MENU key on the remote control. Your settings are displayed on the
DCX3501 front panel display.
3. Press the ▲ and ▼ keys to display the HDMI/YPbPr OUTPUT setting.
4. Press the ► key to cycle through the available output formats until a picture
displays on the TV.
Verify on the User Settings menu that closed captions are enabled on the DCX3520e-
•
M.
• Verify that closed captions are enabled on the TV.
Note: Closed captioning may not be available on the current program.
Widescreen TVs display 4:3 programs in this format unless set to Stretch. If the
DCX3520e-M is connected to a widescreen 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. Set the TV TYPE to 4:3 Pan-Scan.
This enables the DCX3520e-M 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 the TV manual for information about zooming 4:3 video).
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