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How have you connected the audio cables to the TV? The 3250HD has component, DVI, and composite video out. There is also two analog audio outputs (for the component and composite video) and a digital audio output. Make sure that you are using a TV and not a monitor. Many monitors do not have built-in speakers. (In that case, use external speakers.)
If you use the digital audio output, make sure that your audio receiver audio input is connected to the set top box audio out. Then make sure to set the correct source for that audio signal. (Note the TV may have a digital audio port; that is an audio out.)
If you are using one of the analog audio outputs directly to the TV, make sure that you are using the correct set of audio IN on the TV and audio out on the set top box. (If you are on the Component input, your audio won't be heard if you are using the Composite audio output.)
Next try different audio cables. Make sure that the TV speakers are on. (Some TVs have an option to disable the speakers if you use external speakers at times.) Try connecting the audio output to a receiver and speaker system (or speakers with aux in). You might need an RCA F/F to 3.5 mm M adapter for some devices. If another set of speakers do not work, then the set-top box probably has a broken audio output. If another set of speakers work, then the problem is with the TV audio. This could be a problem with the jack or the speakers.
You need a Power socket near the TV, you will need to extend or move the Antenna coax cable. Draw a connection diagram of all connections and mark with them with small stick on labels, label all wires and connections. Then move the TV and connect up as per your diagram. It will be easy.
RG6 is usually antenna coax, which carries multiple radio-frequency signals. If you want to convert a signal coming in over RG6 to component video, what you need in the middle is a tuner, such as a digital TV tuner (e.g., the type the government sent us all coupons to buy before the big digital switch earlier this year).
Not recommended, the impeadance of the UTP is not the same as the coax. If you do wish to proceed the color will not matter. Just be certain to use the same on both ends of the cable. Any good reason to want to use UTP over coax?
Get one splitter if it is six rooms a six way splitter, they make them in three, four six, eight way splitters if it's cable make sure u cable splitter reg splitter uses lower freq the more connections u have the more signal loss. Get rid of as many or all those other splitters. Any question get back to me.
I am going to suggest with that message, the the TV does not understand the signals it is getting from the PC.
Reboot the laptop while connected to the TV, and turn the TV off, then On, while the PC is connected. If you continue to get the message, look in the manual for the TV to determine the reason for the message.
verify the settings for your monitor are correct. with a video card that supports an HDMI output you should be able to go into your display properties (maybe advanced properties) and either force the TV detection or force the HDMI output to be enabled so it's displaying on your PC and your TV simultaniously. I know with N Vidia GeForce video cards you can do this and with most major brands it should work similarly.