JVC VN-C3U - V-networks Pan/tilt/zoom Camera Instruction Manual page 47

Out of focus.
VN-C3U connection is
not possible or the
connection has been
broken.
The autofocus sometimes does not operate
correctly in dark places and when blank
surfaces such as walls are photographed. In
such cases, focus manually.
The focus may be off slightly when manual
focus is used at the TELE position, but this is
not a malfunction.
When there are multiple occurrences of
broadcasts, collisions, etc., or when the
network status is not normal, it may become
impossible to connect the VN-C3U or the
connection may be broken.
48 00.4.7, 5:35 PM