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grace2day · 07-22-2017, 10:02 AM

I posted this in the appropriate modification forum, but received no response. Figured I'd try it here.....

I had my backup camera replaced, and wired to a stand-alone monitor with 4 way split screen capability. I have 2 side view monitors as well, all wired to the dash.

The installer (a/v company, home and mobile) had a rough time getting all the things wired properly to the new monitor. He did not run any new line from the OEM rear camera to the dash. Rather, all 3 cameras met at a junction box, where it then sent one line to the OEM display.

He had to access this junction box, and I believe this is where he encountered challenges getting the new camera to plug and play.

We have a class c, and this junction box is in the bunk above the passenger seat, behind the bulkhead with other cable/satellite wiring.

The net result is my picture is very choppy and "analog", losing the signal periodically like I have poor analog reception.

The moment my generator is on, however, my signal is crystal clear and consistent like digital HD.

I'm trying to understand why the power supply is causing such a difference in the results. Any ideas?

60sumtin · 07-22-2017, 10:28 AM

I'd be comparing the voltages to the camera and monitors between when the gen is running and when its not. Perhaps your alternator is not working properly, its over taxed, or your coach batteries are weak. I'd also be asking the installer why its not working properly.

Pricejh · 07-23-2017, 08:34 AM

Perhaps there is no power to the box when the generator is off.

grace2day · 07-24-2017, 02:50 AM

Quote:

Originally Posted by 60sumtin

I'd be comparing the voltages to the camera and monitors between when the gen is running and when its not. Perhaps your alternator is not working properly, its over taxed, or your coach batteries are weak. I'd also be asking the installer why its not working properly.

The voltage suggestion is a good one. The installer spent two full days trying to track down the issue, and we have since moved to another city. It is now on to a fresh set of eyes.

Having not ran any new cabling or changed the camera type, I can only imagine the junction box has something going on when the genny is off.