![background image](http://html.mh-extra.com/html/cisco/z870dvb/z870dvb_user-manual_67321013.webp)
22
Service Provider Video Technology Group
678.277.1000
5030 Sugarloaf Parkway
Box 465447
Lawrenceville, GA 30042 USA
www.scienti
fi
catlanta.com
Cisco, Cisco Systems, the Cisco logo, the Cisco Systems logo and Scienti
fi
c Atlanta are registered trademarks or
trademarks of Cisco Systems, Inc. and/or its af
fi
liates in the U.S. and certain other countries.
DVB is a trademark of the DVB project.
All other trademarks mentioned in this document are the property of their respective owners
.
Product and service availability are subject to change without notice.
© 2009 Cisco Systems, Inc. All rights reserved.
May 2009
4026055 Rev A
Troubleshooting
If the set-top does not perform as expected, the following tips may help.
If you need further assistance, contact your service provider.
No Picture
• Plug the TV and set-top into an electrical outlet that is not controlled by a
wall switch.
• Verify that all cables are properly connected.
• Verify that the Power to the TV is turned on.
• Verify that the TV is set to the proper input channel.
No Color
• Verify that the current TV program is broadcast in color.
• Adjust the TV color controls.
• Verify that all audio and coaxial cables are properly connected.
No Sound
• Verify that the TV and set-top are properly connected to an electrical outlet.
• Verify that all cables are properly connected.
• Verify that the TV is set to the proper input channel.
• Verify that the volume is turned on.
Disclaimer
Cisco Systems, Inc. assumes no responsibility for errors or omissions that may appear in
this guide. We reserve the right to change this guide at any time without notice.