Surveillance camera FAQ maintenance

1.
No image output

a. Check if the power supply is connected and the power supply voltage is sufficient.
B. BNC connector or video cable is not in poor contact.
C. Is the lens aperture open?
D. Whether the video or DC driven auto iris lens control wire is connected.

2.
The image quality is not good a. The lens is fingerprinted or dirty.
B. Is the aperture adjusted?
C. Poor contact of the video cable.
D. There is no problem with the electronic shutter or white balance settings.
E. Is the transmission distance too far?
F. Voltage is normal.
G. Is there a source of interference nearby?
H. When installing in an elevator, ensure that the elevator is insulated from interference.
i. Is the CS interface connected?

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