Datavideo PTC-140, Instruction Manual, Page: 76 / 84

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3. Sometimes
there is no
image? 1. Please check whether the cable connection
between the camera and the external connected
monitor is connected correctly.
4. Image jittering
is happened
when the
camera lens is
zooming. 1. Please check whether the camera is well-mounted.
2. Whether there is a vibrating machine or object that
is around the camera.
5. The remote
controller can
not be used. 1. Please check whether the remote controller can be
used if the IR address is set to 1. (If the camera is
restored to factory default value and then the IR
address of the remote controller will be reset to 1).
2. Please check whether the battery of the remote
controller is well-installed and whether the battery
power is enough or not.
3. Please check whether the working mode of the
device is normal or not.
4. Please check whether the OSD menu is closed, the
remote controller can be used only when the OSD
menu is closed. If the output video is shown on the
web-based user interface, the OSD menu will not be
shown. If the OSD menu is shown and there is no
action for about 30 seconds, the OSD menu will be
closed automatically.