Denon DVD-9000 Operating Lnstructions page 19

The DVD-9000 can be controlled from a distance using the included remote control unit (K-552).
0) Remove the remote control unit's rear cover.
@ Place
two
"AA" (R6P) batteries in the battery compartment in
the direction indicated by the marks.
(3 Close the rear cover.
* Use "AA" (R6P) batteries in this remote control unit.
@ Replace the batteries with new ones approximately once
a year, though this depends on the frequency with which
the remote control unit is used.
@ If the remote control unit does not operate from close to
the main unit, replace the batteries with new ones, even
if less than a year has passed.
e The included battery is only for verifying operation.
Replace it wirh a new battery as soon as possible.
* When inserting the batteries, be careful to do so in the
proper direction, following the 0 and 0 marks in the
remote control unit's battery compartment.
a To prevent damage or battery fluid leakage:
@ Do not use a new battery with an old one.
e Do not use two different types of batteries.
@ Do not short-circuit, disassemble, heat or dispose of
batteries in flames.
Q Remove the batteries when not planning to use the
remote control unit for a long period of time.
8) If the batteries should leak, carefully wipe off the fluid
from the inside of the battery compartment, then insert
new batteries.
@ When operating the remote control unit, point it at the
remote control sensor as shown on the diagram.
@ The remote control
unit
can be used from a direct
distance of approximately 7 meters. This distance will
be shorter, however, if there are obstacles in the way
or if the remote control unit is not pointed directly at
the remote control sensor.
a The remote control unit can be operated at a horizontal
angle of up to 30" with respect to the remote control
sensor.
@ It may be difficult to operate the remote control unit if the remote control sensor is exposed to direct sunlight or strong artificial
light.
@ Do not press buttons on the main unit and on the remote control unit at the same time. Doing so will result in malfunction.