Motorola Home Theater System DCH70 ユーザーズマニュアル

ページ / 28
5 TROUBLESHOOTING 
 
15
 
Problem Possible 
Solutions 
There is no audio 
when viewing 
cable channels. 
• 
Verify that the Mute button on the remote control 
has not been pressed. Press mute on the remote 
control to restore sound. 
• 
If the DCH receiver audio output is connected to the 
TV, verify that the Mute button on the TV has not 
been pressed. 
• 
If the DCH receiver audio output is connected to a 
home theater receiver, verify that the receiver is set 
to the appropriate input source and the Mute button 
on the receiver has not been pressed. 
• 
Verify that you have the correct cables for the audio 
connections. 
• 
Verify that the audio cables are firmly connected 
between the DCH receiver and the audio playback 
device (TV, receiver, DVD player, etc.). 
There is no video 
on the TV screen. 
• 
Verify that the TV is powered on and set to the 
appropriate input source for the DCH receiver. 
• 
Verify that the DCH receiver is powered on and 
tuned to an authorized cable channel. 
• 
Verify that all video cables between the DCH 
receiver and the TV are firmly connected. 
• 
Verify that the coaxial cable feed is firmly connected 
to the DCH receiver and the wall jack. 
• 
If the DCH receiver 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. 
No closed 
captions display. 
• 
Verify that closed captions are enabled on the TV. 
• 
Closed captioning may not be available on the 
current program. 
There are black 
bars to the right 
and left of the 
picture. 
• 
Wide-screen TVs display 4:3 programs in this format 
unless set to Stretch (see your TV manual for 
information about stretching 4:3 video). 
There are black 
bars above and 
below the 
picture. 
• 
Some SD programs are broadcast in the letterbox 
format with black bars above and below the picture. 
Some wide-screens 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).