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Troubleshooting B

High-Definition All-Digital Dual Tuner DVR Set-top DCX3510-M • User Guide 44

365-095-17067-x.1

Problem

Possible Solution

There is no audio

from the center

and/or surround

speakers of a home

theater receiver

connected to the DCX

set-top

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 S/PDIF cable (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 II

, Dolby Pro Logic IIx

• Verify that the receiver is properly configured to work with all connected

speakers.

There is no video on

the TV screen

•

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 (1080p60, 1080p30, 1080p24,

1080i, 720p, 480p, or 480i) available on the DCX set-top. To select a different

format:

1. Ensure that your DCX set-top 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

DCX set-top 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.

No graphics or

program guides

appear on the TV

screen

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.

No closed captions

display

• Verify on the User Settings menu that closed captions are enabled on the DCX

set-top.

• Verify that closed captions are enabled on the TV.

Note: Closed captioning may not be available on the current program.

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