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TechKnow Guide
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2004raptor said:
... so does that mean that once it's all connected, when you want to play a dvd you just turn it on channel 3 or 4 and power the dvd on and it will play?
If this would work would I go from the wall with one cable to a splitter. One side of splitter to tivo. One side to RF IN then OUT to tv. Then hook composite A/V's OUT's from tivo to RF modulator. Next, hook DVD A/v OUTs to RF modulator INs???

Did any of that amke sense?
Right. It's "automatic" when you program it to recognize the remote signals from your Tivo and DVD player. When you send DVD player commands it switches to the DVD input. When you send Tivo commands, it switches to the Tivo input. The output is always either Ch 3 or Ch4, and you just leave your TV set to that channel.

You can download the owner's manual for the Radio Shack switch here ....
http://www.radioshack.com/product/i...7&kwCatId=2032057&kw=video+switch&tab=support
 

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Good catch .... unless the TV has TWO RF inputs, he'll have a problem connecting BOTH the cable TV coax AND the video switch to the same input. There are RF coax switches that could solve this, but it's getting rather messy with so many switches. Wouldn't it be easier to buy a new TV :)
 

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2004raptor said:
.... He's got a splitter hooked up. One coax goes straight to the tivo. The other coax goes to Input of RF modulator. Then from the Out to TV to the In of Tv. We know that is right.

.... Problem is that when he records something he still isn't able to change back to the regular cable and watch tv. Tried the TV Input button and it just says "LINE". It's been forever since I've messed with a tv with no on-board A/V's. Shouldn't that switch back to the regular cable????
What do you mean by "The other coax goes to Input of RF modulator."? I don't think it will work connecting the Cable TV coax to an input of the RF modulator and getting that signal passed through to the TV. He'll need an RF coax switch on the TV's antenna input to switch between the Cable TV coax (to watch regular cable channels directly on that TV), and the RF modulator output (to watch the Tivo or DVD player).

Also, what do you mean by "Tried the TV Input button and it just says "LINE"? Is it the TV that's displaying "LINE", or the Tivo? If the TV is displaying "LINE", the it must have more than just an RF coax input.
 

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Thanks for the diagram.

Are you SURE that the RF Modulator can "pass through" the Cable TV coax? I don't think they work that way, but I could be wrong. That input is designed for VCRs and devices that output on one RF channel (Ch 3 or Ch 4), not a broadband input like your Cable TV coax.

What I'm suggesting is to add an "RF Coax Switch" where your "coax to TV" arrow points. Connect the RF output of the Modulator (the Tivo and DVD player) to one RF Switch input, and connect the Cable TV coax to the other RF switch input. When you want to watch regular analog Cable TV, switch the RF switch for the Cable TV coax input. When you want to watch the Tivo or DVD Player, switch the RF switch to the RF Modulator output.

Here's a three RF-input Switch available at Radio Shack ...
http://www.radioshack.com/product/i...roductId=2049620&kw=video+switch&tab=features
 
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