Dahua Technology DH-IPC-HDEW Series Quick Start Manual page 33

5 Troubleshooting
For the malfunctions, possible reasons and solutions, see Table 5-1 .
Malfunction
After being powered
on, the Camera does
not perform self-check,
and there is no image.
Self-check cannot be
performed, or there is
noise when the self-
check is performed.
Unstable image.
Blurry video
Table 5-1 Troubleshooting
Possible Reason
If the red LED light on power
board is off:
The power supply is not
connected to the socket of the
power board or the contact is
poor.
Mains electricity is cut off or
there is transformer failure.
If the red LED light on the power
board is on:
The Camera is damaged.
There is power board failure.
Insufficient power supply.
There is mechanical fault.
Poor contact between the cables. Connect the cables again.
The focus is in manual status.
The glass is dirty.
26
Quick Start Guide
Solution
Check whether the power supply is
connected, and make sure that the
socket body is in good contact.
Check whether the mains electricity is
normal, and whether the transformer
is working normally.
Use another camera.
Contact the supplier to replace the
power board.
Use the power supply meeting
requirement.
Contact after-sales service for
overhaul.
Operate the Camera and adjust the
focus.
Clean the glass.