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Comand 4.0 reverse camera - no singal

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Old Aug 30, 2023 | 02:18 PM
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Comand 4.0 reverse camera - no singal

Hi, I am trying to install a back reverse camera. My E class is with Comand NTG 4.0. For now I try to test the camera. I got power (+ / - ) directly from the battery. I connected the video cable to the green input, as shown on the picture




I enabled the camera from the Engineering menu (SRVC option). When I select the R gear the screen switches to the camera screen. But screen shows black. Can somebody help me? What I am making wrong?
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Old Aug 30, 2023 | 03:09 PM
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2008 E350, 2012 ML350, 2014 E350, 2015 ML350
https://forums.mbclub.co.uk/threads/...7/post-2206175
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Old Aug 31, 2023 | 01:49 AM
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Does anybody have a scheme of NTG 4.0 outputs? I only found that for NTG 4.5.
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Old Sep 1, 2023 | 01:50 AM
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I powered the camera with a 220V to 12V adapter to get the video signal directly to my TV. The camera works fine. But still it is not working when connected to the car multimedia.
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Old Sep 1, 2023 | 10:38 AM
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2014 - W212.065 - E400 ( M276.820, 3 liter Turbo) RWD not Hybrid
What resolution is the camera pumping out ?
Your TV still has video input analog style one ? Those yellow RCA jack kind of composite input ?
Its very rare to see those input nowadays.

If the reverse camera resolution too high, maybe the NTG4.0 would not want to show the image.
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Old Sep 1, 2023 | 12:06 PM
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I test it on an old TV. The camera is with 1280*720P resolution. Here is a link to aliexpress
https://www.aliexpress.com/item/1005...e0e11802XYYhxI

Something came to my mind. Does it possible to make the opposite test. To connect the car multimedia video input with some other device, for example home DVD player that has analog output?
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Old Sep 1, 2023 | 12:22 PM
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2014 - W212.065 - E400 ( M276.820, 3 liter Turbo) RWD not Hybrid
Take a read here : https://mca.electricmura.ro/en/merce...mand_aps_ntg_4

I have a rear passenger 2 video screens at driver and co-driver headrest. MB original. And a DVD player too at rear set middle part, MB original. None is a 720P resolution.
Model year 2014 is my car.


Does it possible to make the opposite test. To connect the car multimedia video input with some other device, for example home DVD player that has analog output?
Well, that is a good test to do.




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Old Sep 4, 2023 | 07:13 AM
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I connected the car multimedia video input with a home DVD player that has analog output. Again there is no video signal. I think to try change the facra connector and the video cable.
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