Hi ,

The problematic : GETTING ALL BACKUP CAMERAS VIDEO DISPLAYED IN FULL SCREEN(with small lag) ON A narrow DISPLAY (any of them)

Concluded by now: I was not able to get any video on Display2 except their own camera (Camera C)
I was not able to get any video signal on Display1 except from a regular windows PC Hdmi Output

Prerequisite:

I have 2 narrow displays with uncommon size:
Display1: IPS bar display (winseco driver in windows) ,
res: 400x1280
Input Port: HDMI
Video encoding compatibility -PAL/NTSC : unknown
Video signal type: DIGITAL TDMS

Display2: Autovox Mirror X1 with activation tactile button Video IN
res: Unknown (but seems similar with Display 1
Input Port: ANALOG VIDEO 4pin (Pinout: 1 video signal, 1 gnd video, 1gnd PSU 5V+ PSU)
Video signal type: ANALOG
Additional setting: PSU for camera is interrupted once at 3-5 seconds, probably is a current reading on the Video In signal from camera.

Display3-TV with HDMI input ,for testing purposes only

I have 3 cameras
CameraA:
res: 720P
Output port: ANALOG VIDEO 4pin (Pinout: 1 video signal, 1 gnd video, 1gnd PSU 5V+ PSU))
Video encoding compatibility -PAL/NTSC :NTSC
Video signal type: ANALOG CVBS
PSU:12V

CameraB:
res: 8MP
Output port: ANALOG VIDEO 4pin (Pinout: 1 video signal, 1 gnd video, 1gnd PSU 5V+ PSU))
Video encoding compatibility -PAL/NTSC AL
Video signal type: ANALOG CVI ( compatiblity with TVI observed)
PSU: 12V

CameraC from AutoVoX:
res: 1080P
Output port: ANALOG VIDEO 4pin (Pinout: 1 video signal, 1 gnd video, 1gnd PSU 5V+ PSU))
Video encoding compatibility -PAL/NTSC AL
Video signal type: ANALOG AHD ( compatiblity with CVI observed)
PSU :5V

Camera C has bad housing can't be installed in the slot, has no guide-lines for reverse parking, but can be used as reverse engineering the signals.
I need to get video on Display 1 or Display 2 or have one cam on one display ,the other on other display



Currently I have no immage except Display2 with CameraC which were paired by supplier.

I tried following

S1. cheap chinese converters(~10usd) AHD/CVI/CVBS > HDMI--- NO IMMAGE from Cam.B. on any display, DISTORTED CUT/SHIFTED video from Cam.A. to Displ1 , OK Immage Cam.A on Display3(TV)
Cam.A NO IMMAGE on Display2
S2. more professional converter (~40usd) AHD/CVI/CVBS > HDMI , improvement from S1. is distorted immage from Cam. B on Display3(TV) . the rest is same as S1.


Additionally, I tried a DVR to see if cameras are sending the presumed signals and they DO Provide streaming OK.

Please help me to sort this out, cause I'm lost. I have also an oscilloscope, but the resolution on it is not great, and I can't distinguish between the 3 cameras what is the difference. Only voltage level of CAMA is ~0.4Volts higher

 

Welcome to the mixed up world of "Analog Video"Especially with cameras created to work with one kind of display, they might not work at all with another product. So my suggestion is use a good oscilloscope to look at the video signals from each camera. They will probably be quite different. Different frame rates and different synchronization schemes, and even different video polarities.
And the HDMI is the POOR mechanical quality version of the DVI, which is a sturdy connector, while the HDMI is as cheap construction as possible.
And then consider that for many manufacturers the goal is to be incompatible with all others.
If your scope is not able to display the video signal then you need a better scope.