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Reversing camera
Posted: Fri Dec 30, 2022 7:31 am
by fraze
Hope someone can help here. I have fitted a reversing camera to my FB ute. Works fine until I rev the engine, where it flickers and loses the picture. When the engine returns to idle the picture comes back. I guess it is either excess voltage or electrical interference . I have the same brand of camera in my FC sedan and that works no problem. I can’t figure what the difference might be, Any ideas?...thanks, Fraze
Re: Reversing camera
Posted: Fri Dec 30, 2022 9:37 am
by ardiesse
Fraze,
Run the camera from a separate battery and repeat the test. If the problem persists, it's interference-related; and if the problem goes away, it's supply-related.
Rob
Re: Reversing camera
Posted: Fri Dec 30, 2022 9:56 am
by Harv
You could fit the genuine Nasco reversing camera (optional bucket seats shown):
- 2E29510D-2FA2-4251-9EEF-9353E9AD288A.jpeg (25.94 KiB) Viewed 844 times
Cheers,
Harv
Re: Reversing camera
Posted: Mon Jan 09, 2023 1:40 pm
by fraze
Thanks for the advice Ardiesse .I fitted a noise suppressor to the generator but that changed nothing so I ran the camera off a seperate battery and it works fine. SO I have a supply problem! I am lost here - can anyone suggest a fix for this over supply(excess voltage?) situation???? Thanks, Fraze
Re: Reversing camera
Posted: Mon Jan 09, 2023 2:00 pm
by Blacky
Maybe an isolation transformer ? 12 volt in - 12 volt out , a mob like Bogaard may be able to supply ????
Re: Reversing camera
Posted: Mon Jan 09, 2023 2:09 pm
by In the Shed
G’day Fraze
You could try one of these, buck converter module.
I used a similar unit to run a 12 v led headlight globe on my motorcycle that was only 6 volt. In your case you just need a stable 12 v supply (output from converter) to power your camera regardless of the input voltage which varies depending on car charging system. Can’t remember if you run a genny or alternator.
Just double check the current draw of your camera to make sure you don’t exceed current rating of buck module unit.
Regards
Stephen
https://www.ebay.com.au/itm/13244682604 ... R7yVy8eyYQ
Re: Reversing camera
Posted: Thu Jan 12, 2023 10:18 am
by Dr Terry
What ignition leads are you running ? If they are wire leads, that could be the issue.
The main reason modern suppression leads were introduced was to reduce RFI (radio frequency interference) which appears to be what your problem might be.
Dr Terry
Re: Reversing camera
Posted: Thu Jan 12, 2023 11:23 am
by Blacky
Dr Terry wrote: ↑Thu Jan 12, 2023 10:18 am
What ignition leads are you running ? If they are wire leads, that could be the issue.
The main reason modern suppression leads were introduced was to reduce RFI (radio frequency interference) which appears to be what your problem might be.
Dr Terry
So a simple test would be switch the engine off and see if the picture quality improves ???
Re: Reversing camera
Posted: Thu Jan 12, 2023 12:06 pm
by Dr Terry
Blacky wrote: ↑Thu Jan 12, 2023 11:23 am
Dr Terry wrote: ↑Thu Jan 12, 2023 10:18 am
What ignition leads are you running ? If they are wire leads, that could be the issue.
The main reason modern suppression leads were introduced was to reduce RFI (radio frequency interference) which appears to be what your problem might be.
Dr Terry
So a simple test would be switch the engine off and see if the picture quality improves ???
But he said it only occurred when he revved the engine. From that I assumed it was OK at idle.
Dr Terry
Re: Reversing camera
Posted: Thu Jan 12, 2023 2:53 pm
by ardiesse
Fraze,
Because the camera runs fine from a separate battery with the engine running, you've determined that the problem is not radiated RFI, but conducted interference from the car's B+. You need a line filter. I thought there'd be a 12-V version, but there ain't.
The best I can come up with is the Jaycar MS-4001 line filter. It's designed for the mains, but you can use it for a 12-V application. Connect the 12 V supply and return to the "LINE" terminals; connect the camera to the "LOAD" terminals (the right way around, of course), and leave the centre LOAD pin floating.
See how you go. Otherwise, Stephen's suggestion of a converter module is worth trying.
Rob
Re: Reversing camera
Posted: Fri Jan 13, 2023 10:28 am
by fraze
Re: Reversing camera
Posted: Fri Jan 13, 2023 1:22 pm
by Blacky
Happy days
Re: Reversing camera
Posted: Fri Jan 13, 2023 2:29 pm
by FireKraka
Well done Fraze great to sort out those little problems that just bug the shit out of you.