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Troubleshooting
: Symptom
: Possible Causes and Actions Taken
No video image. / Power does not turn on.
Is there any problem with the power cable for
connecting this product to the power supply unit?
(If the cable is too long or thin, this may increase
the resistance and prevent the voltage from being
properly supplied.)
N Connect using a cable with a thickness/length
specified for this product.
(A p.25 [Installation and Connection
Preparations (VN-H657BU)] )
(A p.35 [Mounting the Camera
(VN-H657WPBU)] )
Is the lens cap attached?
N Remove the lens cap.
Is the port number to be used when the client
computer accesses to the camera via HTTP
correctly specified?
(If the port number is incorrect, the Built-in Viewer
menus will be displayed, but videos will not
appear, and a "Connection is failed" message will
be displayed instead.)
N Set the HTTP port value for the Built-in Viewer
to the same value specified for the HTTP
server port on the camera's Protocol page.
(A p.76 [[Protocol] Page] )
(A p.99 [[Unicast] Settings] )
The power does not turn on even when PoE
Plus is used to supply power.
Is connection established using a PoE Plus
(compliant with IEEE802.3at Type 2) power
supply device and a LAN cable of Category 5e or
higher?
N Check the cable. For some PoE Plus power
supply devices (such as a hub), power will not
be supplied when the number of PoE/PoE
Plus terminals connected exceeds the limit of
the total electrical power that can be supplied.
For more information, please refer to the
instruction manual of the PoE Plus power
supply device.
Troubleshooting
108
The power of the camera turns off when
VN-H657WPBU is used in an environment
under -10°C.
N Check to ensure that the ON/OFF switch of the
heater is set to ON.
N When power is supplied using PoE Plus, the
heater will not work. Connect the
VN-H657WPBU to an AC 24 V power supply
when using it in an environment under -10°C.
Power turns on, but shuts down once the
camera starts rotating.
Is the adhesive tape attached during shipment
detached? Is there any foreign object inside the
product that prevents the camera from rotating?
If the camera unit is unable to rotate when you try
to turn it, the power will shut down automatically
to protect the equipment.
N Remove the adhesive tape attached during
shipment, and check whether the camera unit
rotates by turning it manually.
(A p.10 [Transportation] )
Is there any problem with the power cable for
connecting this product to the power supply unit?
(If the cable is too long or thin, this may increase
the resistance and prevent the voltage from being
properly supplied.)
N Connect using a cable with a thickness/length
specified for this product.
(A p.25 [Installation and Connection
Preparations (VN-H657BU)] )
(A p.35 [Mounting the Camera
(VN-H657WPBU)] )
I do not know the IP address of the camera.
If no changes have been made to the factory
default settings, the IP address is 192.168.0.2,
and the subnet mask is 255.255.255.0.
If you have set the [IP Setting] to "DHCP
Enable" and if you start the camera on the LAN
where no DHCP server exists, you can start the
camera with the factory default IP address.
N If you have a computer connected to the same
LAN, search for the IP address using
"JVC-VN-SearchTool" on the computer.
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