If you think that the is operating strangely, check the following items ﬁrst.
There is no sound or output is very quiet
t Check the connections to your monitoring
system and its volume setting.
t Conﬁrm that the volume of the is not
The recorded sound cannot be heard or
is very quiet
t*G ZPV BSFVTJOHUIFJODMVEFE9:NJD
conﬁrm that it is oriented correctly.
t$IFDL UIF MFWFM TFUUJOHT POUIF .JYFS
t If a CD player or other device is connected
Recording video/audio is not possible
t Conﬁrm that the SD card has open space.
USB connection trouble
When the USB port is connected to a
computer, an error message related to
power supply appears
computer and set the USB menu to