Video input won't accept signal. I have verified that the signal coming into the Video input port (yellow RCA) is good, and that the cables are good. Also, the projector works fine with input from the Computer/Component input.

I am assuming that you are talking about a Nintendo Wii.  When you buy a Wii it comes with standard RCA composite cables that are three colors, Red, White and Yellow.  Yellow is the cable that carries the video signal and the red/white carry the stereo audio signal.  You would need to connect these cables into the corresponding color inputs on your tv.  Plug the yellow ended cable into the yellow jack on your TV and do the same for the red and white cables.  After this is done, you will need to switch your tv's input to the input that corresponds to the one you plugged those cables into.   Some newer flat panel TVs do not come with RCA composite inputs.  If this is your problem, you will need to get some component cables for your Wii.  These cables look identical to RCA (composite) cables but come in colors red, green, blue, red and white.  In this case the red, green and blue cables carry the video signal and the red and white carry the audio.  You can purchase these from just about any store that carries the Wii or online from places such as Amazon.com.

http://www.amazon.com/Official-Wii-Component-Video-Cable-Nintendo/dp/B000JJRV90

You would hook these up the same way by matching the colors and then changing your tv to the corresponding input.

Hope that helps!

It should work right away. Try again, restart the projector and ps3 make sure everything is connected and the input on the projector is on dvi.

the simple answer is no.
but if you have basic cable (coax) you could connect it to a vcr, tune the channels with the vcr-
connect the vcr to the TV with composite video (yellow, red/white)

Yellow is a composite output and should be plugged into a composite input, whereas Y indicates the COMPONENT input of the TV. If you don't have a separate composite input use a scart to phono (rca) adapter in your tv's scart input.

I hope I have been of help but please do not hesitate to ask if you have any further questions.
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More info is needed, please. When you say 3 video inputs, what are you referring to? I believe the Sanyo has the HDMI, RGB/YPbPr component video, S-video component, RCA composite video and Coaxial connections, though I'm not sure how many of each. So lets start with the best quality to least.

HDMI: This is one cable that provides both audio & video and produces the best picture quality. It comes in different lengths and is a wide, flat connection. A must for 1080p resolution signals.

Component video, RGB or YPbPr analog component cables: 5 separate RCA cables, 3 of which are video that separate the video signal & 2 audio cables. The 3 video cables are generally red, green and blue (RGB) or marked individually with the letters Y, Pb/Cb & Pr/Cr . The audio cables are red & white. You may see these on the back of DVD players often. They will carry a signal up to 1080i but not 1080p.

S-video component: One cable for video, it is a round connection with several pins in it and will only plug in one way. You must use 2 RCA cables for audio with this cable, red & white again.

Composite video: 3 separate cables; Red, White & Yellow. Red & White are audio, left and right while yellow is video.

And finally there is coaxial which it the cable that is identical to the cable from the pole/ cable box or your dish. It is the poorest quality.

What can happen is you are using 3 standard RCA cables and have them plugged into the component input & they will not carry the signal, or one end in component input and the other end in the composite output or vice versa. Another is that you have the wrong input selected on the menu. Check all your cables and connections, plus the input you have selected on the TV itself.

Make sure the Yellow RCA Cable is plugged into the Yellow port on the DVD recorder. People often try to plug these in without good lighting & will plug the White audio into the Yellow video ports. Also, check to make sure they are in the correct color ports at the TV as well.

Yellow = Video
White = Audio
Red = Audio

Another way to test the cable is to bring a smaller TV in next to the main TV. Use your RCA cables coming from the OUTPUT of your main TV that you want to record from & connect the other end of the cables to the INPUT of the smaller TV just to see if the cable is passing video. The cable could just be bad & you need to buy a new cable. Hope this helps.

The Bose GS can only support component video set-up for the best video definition. This video connection set-up uses three RCA cables to transfer the video signal from an output device (the Bose GS) to an input device (Your TV).

Check if the back of your GS system has a set of video out RCA ports that are titled "Comp Out". You TV should then have a "Comp In" video input RCA ports you can connect to.

Hope this helps.

When connecting VCR to TV. Verify all connections. First if the connection is with coaxial cable make sure you signal from outside is screwed to the cable input on VCR. Then the VCR/TV output has the cable running to TV input. If hooking up with RCA cables , which is the yellow, red, and white cables. Hook one side up to VCR output. Yellow for Video, while red/white to audio output matching the colors. The same is done to the Television input. yellow for video, red/white for audio. Do a test recording. Use a blank tape, not one already recorded on. Record about 5 minutes Stop recording , rewind and playback. You should see the difference.

Sony.com may have a pdf downloadable manual available on line.
The standard way to connect Audio from a Receiver to a TV is to send a signal from the Tape outputs (RED & WHITE) on receiver via RCA cable to a Aux input (RED & WHITE) on the TV. Likewise, sending a Video signal from a receiver to a TV, is via a Co-Axial RCA cable , using a Video Out (YELLOW) on the receiver to a Aux Video Input (YELLOW) on the TV. An S-Video cable can also be used (in leu of yellow RCA cable) if available on both Receiver & TV.

Steps to hook up DVD player:

1. Plug in DVD player
2. Plug in VIDEO cable to back of DVD player
There are multiple video out cable options: HDMI, VGA, RCA
If you aren't sure, use RCA (red, white, yellow tri-plug cable) and plug yellow into VIDEO OUT port.
3. Plug other end of video cable into TV's VIDEO IN port.
4. Turn on TV to the INPUT channel that corresponds with the input port you plugged the video cable into. Usually, this is either VIDEO1, VIDEO2, INPUT1, INPUT2, or channel 3.