OK, thanks for the responses:
Originally Posted by hometheaterguy
You need a cable box. You connect coaxial cable between the wallplate and the box. Then you can connect a component video (red, green and blue) cable to a component-to-VGA adapter, or use a S-video, or the yellow RCA composite port. Make sure in your projector menu all sources are enabled and you set it to auto source.
The projector has a VGA-to-component adapter, so I guess this is a solution, but aren't cable boxes subscription-based? We have our cable connection as a subscription through our school, and they don't offer cable boxes specifically for this...any suggestions on where to get one if I need it?
Originally Posted by Targus
You hooked a TV tuner up to a sattelite receiver? I'm surprised you got anything at all (probably RF leaking in).
The TV tuner is for tuning and demodulating OTA or CATV ...the sat receiver is for tuning and demodulating sat signals...they're different, and not compatable.
There are no cheap adaptors that convert component to VGA, a transcoder is required.
Targus, our projector has an adapter that connects to the VGA, no transcoding required...wouldn't that work?
Also, about hooking it up to the sat receiver: I initially hooked it up straight from the wall and we got that weird crappy signal (distorted but viewable). Then I took the sat box and took the coax output from it and decided to demodulate it. Images came up very sharp, but only for a few seconds, then they disappeared.
Originally Posted by Targus
...or use the tuner he already has.
Thank you, this boosted my confidence, and I hope it works!!! The demodulator functions as a tuner, I take it?
Originally Posted by Kevin Graf
You could run the co-ax into an old VHS tape recorder and the RCA output to the projector.
I don't think this works...I've checked out the backs of most VCR's (I assume that's what you're talking about...?), and they have a separate coaxial input and output. It doesn't run it through to the RCA. Unless I'm completely off-base here? Anyone?
Originally Posted by GeekGirl
I found the spec sheet. Output is video 75 Ohm, 1 Vp-p. In other words, it's composite.
Easy fix: Get a coax cable and put an F-connector on 1 end so you can screw it into the demodulator output. Put an RCA plug on the other end. Center conductor to the pin, shielding to the shell, it should fit no problem. Plug it into the RCA input of your projector.
I'll bet that the projector RCA input jack is colored yellow, an indication that this is a composite video input.
Are you sure that will work? Doesn't coax carry both audio and video on one signal? How can I get the audio off of the signal? The way you described it, I would essentially take an F-type and convert it to a single RCA...but that leaves me without audio.