Scientific Atlanta 4250HDC Benutzerhandbuch

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Performance Tips
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.
•  Verify that your HDTV is in HD mode. If necessary, run the HD Setup Wizard to select HD mode.
•  If the set-top is plugged into a wall switch, verify that the switch is in the ON position.
•  Verify that all cables are properly connected. 
•  Verify that the M-Card module is installed.
•  If your system includes a VCR or stereo, verify that you have properly connected them to the 
set-top 
•  Verify that the set-top is set to the proper screen type and resolution.
No Color
•  Verify that the current TV program is broadcast in color. 
•  Adjust the TV color controls.
•  If you are using a component video connection (PrPbY), check that all connectors are 
completely plugged into the set-top and TV.
No Sound
•  If your setup includes a VCR or stereo, verify that you have properly connected them to the set-
top. 
•  Verify that the volume is turned up (analog audio only). 
•  Verify that the mute function is not on (analog audio only).
Automatic Software Updates
A message appears on the TV screen when the set-top and the M-Card module are receiving 
software updates. In addition, download information also appears on the front panel of the set-top 
during these updates. Wait for the current time to display on the front panel before continuing. 
When the time appears, the update is complete.