Composite Video Question

[AtomSoft]

Hey i have a camera and i want to boost the video signal for splitting purposes.

I have 2 tvs in the kitchen which is the beginning of the house and 1 in my room the end of the house. The camera in for my door in the entrance which is next to the kitchen. I want to have it show the camera on the kitchen tv and the room tv.

I can wire this with no issue but when both are on none work and when i unplug the video from 1 tv the other works.

So basically any thoughts on how to boost the signal? Also have you ever heard of a TV that doesnt show video unless there is audio from the same device? I think i have one of those and its killing me.

 

[Nigel Goodwin]

Remove the 75 ohm load resistor from one (or both) of the TV's - it will probably work then.

Never heard of a TV not working with no sound supplied - although the other way round is normal.

 

[AtomSoft]

Thanks Nigel ill take that as a Plan B as im not to comfortable opening and removing something from a tv

 

[Nigel Goodwin]

In which case build a video amplifier and a 75 ohm splitter.

 

[AtomSoft]

You got any links of info on how to do that?

 

[Nigel Goodwin]

A quick google finds this

https://www.linear.com/pc/downloadDocument.do?navId=P1470,D4146

 

[AtomSoft]

Wow thanks i see that i would need 1 or for best 2 "LT6552" Which are Video Op Amps. They got for about $2 at newark which is perfect. Thanks a bunch that app note was very usefull. Google isnt always my pal. He likes to misdirect me sometimes