Motorola DCX3200 ユーザーズマニュアル

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7 TROUBLESHOOTING 
 
43 
Problem
Possible Solution
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 (1080p, 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 Menu button on the remote control. 
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.