JVC VN-V686WPU Instructions Manual page 11

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
● Heater 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.