Sony PCV-RZ44G - Vaio Desktop Computer User Manual page 279

There is no TV signal
You cannot watch or record TV if Media C enter detects that there is no TV signal. If there is no TV signal, then try the following:

Ensure that the cable or antenna is connected to the computer. If your TV signal passes through a set-top box, then make sure the
cables are attached that connect your TV signal to the set-top box and the set-top box to the computer.
 C ontact your TV service provider
service subscription might have lapsed or you do not subscribe to a specific channel.

You might be having trouble with your tuner card. Ensure that it is enabled and a current driver is installed. To troubleshoot further,
consult the hardware documentation.
Related topics
Video does not display
Troubleshoot the TV signal or image
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to ensure that your TV service is not experiencing technical difficulties. Additionally, your TV
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