Nuvi 1490TV video input connection (or Dezl Camper 560 760)

[scotlanduser]

Does anyone know which pins on the 3.5mm video input socket are used for the signal and what type of video signal is allowed? I believe the Dezl Camper 560 760 units may be similar. I'm looking to connect a reversing camera.

[asprin624]

See page 4 and 32 of the manual.

Spoiler: Complete manual for the nuvi1490TV

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How do I connect the camera to the nüvi 1490tv?

Connect the camera to your nüvi through the video-in jack on the left side of the nüvi. See page 4. 2. Touch TV. 3. If necessary, follow the on-screen instructions. nüvi 1490TV Owner’s Manual \u0018\u0018 Managing Files Managing Files Notice
nuvi 1490TV (available in Europe only) A video cable is required to connect a backup camera to a nuvi 1490TV.

Spoiler: How to guide

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This should point you in the correct direction....

[scotlanduser]

I have already read the manual, which does not, unfortunately, answer the questions I asked initially.

[Boki]

Video-In
S-Video or composite, always - standard, otherwise they are equivalent and easily converted into one another.

The information that the camera can be connected also goes in favor.

I assume that the appropriate cable should go with the device or can be ordered from the manufacturer (and costs relatively expensive ).
Well I also guess you want to make it (there are some to buy on the market, cheap).

Pay attention - are you sure it's 3.5mm? It is audio standard. Maybe it is 3mm, or less, maybe very similar.
If so, you can use something like [Only registered and activated users can see links. ]. or [Only registered and activated users can see links. ]

[scotlanduser]

Thanks for confirming that it is probably composite video. The official Garmin cable is TRRS 3.5mm to phono but I cannot find any documentation to tell me which of the 4 connections on the 3.5mm TRRS plug are used to carry the video input.

[Boki]

4 contact surfaces, then it is most likely S-Video. But what is the order in the device...
If the nomenclature is followed, then
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Pin 1 GND Ground (Y)
Pin 2 GND Ground (C)
Pin 3 Y Intensity (Luminance)
Pin 4 C Color (Chrominance)

You can experiment, if you miss something you can't be dangerous Either there will be no picture or there will be no colors.

[scotlanduser]

The other end of the official Garmin cable is a phono in-line socket so only two connections which must mean composite not S-video. Looks like I need to experiment with the cable I have which is not the Garmin one.

[Boki]

Then it's simpler. One is ground, other is signal, source. But ... you didn't write what you were connecting.

[scotlanduser]

As I said in the first post I am thinking about using the Garmin unit to view a reversing camera. I have not got one as yet.

[scotlanduser]

By experimentation I have now established that the composite video input to the Nuvi 1490TV should be connected to the middle two ring connectors on the 4 pin 3.5mm TRRS plug as for the standard camcorder cable in the diagram below.

Spoiler: small pic

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