no signal between my VTX and my receiver.

[ali101]

Thanks guys just came back home will try all the suggestions

[mark]

Your trying to power a 12v camera off a 5v supply. Does the immersion vtx not put 5v out not 12v if your using a 12v camera. You might need a voltage step up.

[FPVSteve]

He's not using a camera

[ali101]

You could try bypassing the VTX / VRX by connecting the camera (yellow and black) directly to the monitor's RCA input.
Keep the camera powered by the quad, u just want to get video & ground to the monitor directly.
If u then get a picture, you know the cam & monitor are good, and the prob lies with the TX / RX setup.

Thanks very much for your suggestion I have tried this and i got a picture but it was very blurry and it was in colour unlike the first time which was in back and white

[ali101]

I've been looking at your pictures. I suggest you strip things down to the bare essentials with your setup and plug the outputs from the vrx into the inputs into your home TV (it should have compatible inputs). Do you get a picture? At least you can discount the fpv monitor.

What do you mean by the bare essentials and what are they. plus my home TV has a RCA Port with out the pin and so does my VRX output so they both dont have a middle pin so there not compatible and wont plug in to another.
In my pic below you can see the port I am talking about and the VRX Yellow cable has the same port. Ans my TV has the same port

[BlueFlyer]

the 3.5mm jack might not be wired up the same way as the VRX socket. Therefore the VRX might be outputting the video on a different RCA connector. I've had it happen to me many times. Not all AV connectors are the same, and some FPV equipment has different pin-outs to standard AV connectors are expecting.

[BlueFlyer]

Your trying to power a 12v camera off a 5v supply. Does the immersion vtx not put 5v out not 12v if your using a 12v camera. You might need a voltage step up.

According to the pictures, he's not, the VTX 5v out is not connected to the camera, he's stripped the wires and the camera is being powered from the same source as the VTX, not the VTX itself

Ali101, make sure this source voltage is 12v at least, a 3S LiPo needing a recharge isn't good enough.

He's not using a camera

He is using a camera, his reply of "I don't have a camera" was a reply to "try a different camera", I think he meant "I don't have a SPARE camera"

[FPVSteve]

He said in the other thread that he was wiring it up to a screen - that's why we were asking if it was bluescreening or displaying "No Signal" due to a poor signal (if any)... in fact he said that to me when I asked if he'd left the lens-cap on the camera resulting in no image :D

[mark]

He say s 12v board cam in the description. How else would he get a picture from any where. Was just a thought.

[BlueFlyer]

lol Steve, this is exactly why it should have all stayed in one thread.... personally I'm just waiting for a 4th one to appear.

[FPVSteve]

I'm out - I can't be arsed.

[Dillwhacker]

Well, to be fair, there was a picture and a description of the the camera in the OP's first post in this thread.

[BlueFlyer]

Dil, the misunderstanding arose because he had 3 threads open asking the same thing and he'd mentioned something in one thread that he left out of the others.

The other threads are gone now

[Dillwhacker]

Cool. I know. OK. Let's just try to get it to work 4 him.
;D

[elmattbo]

If it was just the camera unpowered or unconnected then the screen would be black. Assuming it's tuned correctly, I would say the issue is the connection between vtx and monitor. What is that cable between the receiver, battery and the connection to the cable from the monitor? Have you tried all combinations or rca connections like blue suggested? Does the power definitely go through the same cable as the signal to the monitor.

On a side note you need to be a bit careful with some of that wiring. You're asking for a short and a puff of magic smoke!


Sent from my iPhone using Tapatalk