JVC VN-V686U Instructions Manual page 11

Saving Energy
When the camera is not in use for a long time,
turn off the power of the system for safety and
energy conservation reasons.
Consumable parts
The following are consumable parts. They must
be replaced once they reach their lifetime.
The lifetime is only an estimation and differs
according to the usage environment and
conditions. Replacement of consumable parts is
chargeable within the guarantee period.
● Zoom lens assembly
Zoom operation............ Approx. 2 million
operations
Focus operation ........... Approx. 4 million
operations
● Slip ring......... Approx. 5 million operations
● Cooling fan.............. Approx. 50,000 hours
● Heater relay .......... Approx. 100,000 times
● Alarm output 1 fan .. Approx. 50,000 hours
Auto Focus
This unit is equipped with One Push Auto Focus
and Easy AF Auto Focus functions. However,
depending on the object and the camera setting,
it might be out of focus. In this case, please
adjust the focus manually.
● Objects which are difficult to be focused
automatically
● When the brightness of the image plane is
extremely high (bright)
● When the brightness of the image plane is
extremely low (dim)
● When the brightness of the image plane is
constantly changing (for example, a
blinking light)
● When there is almost no contrasts.
● When there are repetitive vertical striped
patterns on the image plane
● Auto Focus is difficult to set under the
following conditions
● When sensitivity is increased with AGC
and the screen is grainy
● When there is less movement on the
screen due to the Sense Up function.
● When there is no contour element in
electronic zoom
Zoom Operation
The following phenomena are the result of the
built-in lens performance and are not
malfunctions.
● When manual operation or preset is selected,
focus moves slightly after the zoom operation
has stopped near the TELE edge.
● Manual zoom operation is not smooth.
● When Preset is selected, the camera
becomes out of focus for an instant during
zooming.
Preset Positions
The total number of preset positions that can be
set in this unit is 100, including the home position
and 99 preset positions.