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My step-father picked up a Scientific Atlanta 3100HD box from the local Comcast office. He installed it himself, i.e. no comcast service call for the install. He has it connected to his Sammy DLP TV via component video 1. On all of the HD channels there is analog audio, but no signal is detected by the Sammy when I switch the input to component 1. Any thoughts? Is there a service menu for the box we need to access?
 

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I don't have an answer for you - I have a lot to learn, to say the least - but I'll bump this for you so it will go back to page one and hopefully someone else will be able to help you.
 

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He may not have the output resolution set right on the STB....


You need to turn on your TV, leaving the STB OFF, press menu on the STB controller, and then set your outup to 1080i or 720p. He may have a 720p native TV, but the STB is outputting at 1080i...


This may not be it, but it's a possibilty.
 

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The Sammy Component 1 input may be for 480i, only.
 
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