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IR Dome Camera With Auto Iris Lens Image Too Dark

IR dome camera with auto iris lens image too dark

First check for EE/AI function switch is set on the AI side, then check the LEVEL potentiometer adjustment is appropriate.
IR dome camera image quality is not good
A. check for fingerprints or dirty lens.
B. check whether the aperture set.
C ... check the video cable connection is bad.
D. check the electronic shutter white balance settings no problem.
E. check if the distance is too far.
F. check that the voltage is normal.
G. check whether there is interference source in the vicinity.
H. installation should check the elevator and elevator to ensure the insulation from interference.
I. check whether the CS interface.

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Shenzhen Youguan CCTV Technology Co.,Ltd