Cisco Explorer 4250 Руководство пользователя - Страница 11
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Performance Tips
If the 4250 does not perform as expected, the following tips may help. If you need further assistance, contact
your cable service provider.
No Picture
• Verify that the power to your TV is turned on.
• If the 4250 is plugged into a wall switch, verify the wall switch is in the ON position.
Note: You should avoid plugging the 4250 into an outlet that is controlled by a wall switch.
• Verify that all cables are properly connected.
• If your system includes a VCR or stereo, verify that you have properly connected them to the 4250.
No Color
• Verify that the current TV program is broadcast in color.
• Adjust the TV color controls.
• Verify that the TV is set to the proper input channel.
No Sound
• If your setup includes a stereo, verify that you have properly connected it to the 4250.
• Verify that the volume is turned up.
• Verify that the mute function is not engaged.
• Check your secondary audio programming (SAP) settings.
Automatic Software Updates
The TV screen may display a message that indicates the 4250 is automatically updating its software.
Should this occur, wait for the time to appear on the front panel of your 4250 before continuing. When
the time appears, the update is complete.
Frequently Asked Questions
Where Are the Connection Diagrams?
The diagrams are on pages 10 through 12 of this guide. The diagrams show examples of common ways to
connect the 4250 to your TV, VCR, and home theater receiver. However, these diagrams do not show every
possible combination of devices. Refer to the user's guides that came with your other electronic devices for
further information.
What Cables Do I Need?
The connection diagrams in this guide indicate which kind of cables are required for each connection.
Some of the cables and adaptors shown in the diagrams may not be included with the 4250.
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