Troubleshooting; Avoid Screen Burn-In - Cisco CHS 335HDC Installation Manual

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
• Verify that the power to your TV is turned on.
• If the set-top is plugged into a wall switch, verify that the switch is in the ON position.
(Avoid plugging into an outlet that is controlled by a wall switch.)
• Verify that all cables are properly connected.
• If your system includes a VCR, DVD recorder, or stereo, verify that you have properly
connected the device to the set-top.
• Verify that you are using the proper input selection to the home theater, set-top, or TV.
• Verify that the set-top is set to the proper screen type and resolution.
• If you are using coaxial cable to connect to your TV, verify that the TV is tuned to the
channel designated by your service provider (usually channel 3). Contact your service
provider for the channel information.
No Color or Incorrect Color
• Verify that the current TV program is broadcast in color.
• Adjust the TV color controls.
• If you are using a component video connection (YPbPr), check that all connectors are
completely and properly plugged into the set-top and TV.
• If you are using a component video connection (YPbPr) and your HDTV has only RGB or
RGB-HV connectors, you must use an adapter. You can obtain the adapter through an
electronic parts retailer.
No Sound
• If your setup includes a VCR, DVD recorder, or stereo, verify that you have properly
connected the device to the set-top.
• Verify that the volume is turned up.
• Verify that the mute function is not on.
• Verify the proper input selection to the home theater, set-top, or TV.
• If you are using coaxial cable to connect to your TV, verify that the TV is tuned to the
correct channel.

Avoid Screen Burn-In

Images such as letterbox bars or side bars, bright closed-captioning backgrounds, station
logos, or any other stationary images may cause the display in your HDTV to age
unevenly; this is known as screen burn-in. Refer to the user manual that came with your
HDTV for more information.
CAUTION:
Avoid screen burn-in.
Do not display the same fi xed images on your HDTV screen for extended periods
of time.
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