120 en | Reference Digital Video Recorder
F01U | 2.0 | 2008.12 User Manual Bosch Security Systems
Symptoms Resolutions
Audio data recorded
with video data is not
playing.
Check that the audio recording option is correctly set for the camera
you wish to record audio.
Check that the speaker and audio (line input) on the rear of system are
connected correctly.
Check that the connected speaker is working properly.
The colors of some
camera videos are
strange or videos are
displayed abnormally.
If the camera connected to the system has a problem, check that the
camera is not damaged by connecting another camera into a working
video output.
Check video format setting of the unit is the same as the connected
camera’s video format. Depending on your region, the camera’s video
format can support either PAL or NTSC. Depending on the camera’s
video format, the video process can differ greatly, therefore it can
be difficult to recognize the video data if the video format setting is
different from the camera’s video format.
There is a lot of
(screen) noise
accompanying the
image.
Check if the video signal output from the camera has a problem. Ensure
the camera is not damaged by trying another camera with a working
video output.
Check if the video cable connection between the camera and the DVR is
cut, crosswired, or shorted.
Check if there is a high voltage wire around the video cable connection
between camera and DVR system. It can cause interference and affect
video quality.
Check that the video cable connection between the camera and the DVR
system is the correct video cable. When a normal power-supplying cable
is used instead of the video cable, screen noise can be generated.
The connected input is
not operating.
Check that the type of input in the camera setting is the same as with
the connected input.
Check that the system is set to use the input in the recording schedule
window in the recording setting menu.
Check that the input is properly connected to the ALARM-I/O.
The connected
PTZ camera is not
operating.
Check that the system is set to use the PTZ camera in the camera
setting menu.
Check that the power cable of the PTZ camera is properly connected.
Check that the signal cable of the PTZ camera is properly connected.
Check that the selected channel to control the PTZ camera.
Check the user type. The PTZ camera control is not available for a
normal user.