If your cable box has component connections the first thing you may want to do is contact your cable company and see if there is an upgraded box available.
Xfinity hdmi cable box setup.
It goes in the wide narrow port in the back of the cable box.
Why xfinity wifi keeps disconnecting 6 steps fix method if you choose to have a professional do the xfinity cable box setup you will have to pay an installation fee.
If your cable or satellite box is connected with an hdmi cable use the following steps to get your picture.
When you receive a cable tv set top box from comcast it will need to be activated before you can receive channels on it.
If you re using a v cables instead plug each cable into the same colored port on the back of the box e g plug the yellow cable into the yellow input.
You can activate your cable box online or by calling comcast.
If you are using the hdmi cable you will only use one coax cable for your set top box connection.
On most comcast cable boxes the hdmi port is either in the bottom right corner of the box or at the bottom of the box s back.
There are two ways on how to set up xfinity cable box.
Press the input button on your vizio remote.
Wireless tv box faqs.
This process may take up to 10 minutes.
Make sure this connection is finger tight.
Refer to your xfinity folder.
3 plug the power cord into your set top box then into an electrical outlet.
Comcast will not activate cable boxes purchased used.
Learn about wireless tv frequently asked questions.
Plug in one end of the hdmi cable.
Learn more about your comcast tv box and download the user manual here.
Professional set up and self install.
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Most cable and satellite boxes today can be connected with hdmi and that s a good thing because hdmi offers the best picture and sound.
Usually located in the top left.
Your set top box will begin booting up.