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5
Before operating this unit
1. Remove the battery compartment cover by pressing
and sliding it out.
2. Insert two AA (R6- or UM-3)-size batteries into the battery
compartment. Carefully follow the polarity diagram
(positive (+) and negative (–) symbols) inside the battery
compartment.
3. After batteries are installed and seated correctly,
replace the compartment cover.
Notes
• Do not mix new batteries with old batteries or differ-
ent kinds of batteries.
• To avoid corrosion, remove the batteries if the remote
controller is not to be used for a long time.
• Remove dead batteries immediately to avoid dam-
age from corrosion. If the remote controller doesn’t
operate smoothly, replace both the batteries at the
same time.
• The life of the batteries supplied is about six months
but this will vary depending on usage.
Point the remote controller toward the remote control
sensor.
The Standby indicator lights up when the unit receives a
signal from the remote controller.
Notes
• Place the unit away from strong light such as direct sun-
light or inverted fluorescent light which can prevent
proper operation of the remote controller.
• Using another remote controller of the same type in
the same room or using the unit near equipment
which uses infrared rays may cause operational inter-
ference.
• Do not put any object such as a book on the remote
controller. The buttons of the remote controller may
be pressed by mistake and drain the batteries.
• Make sure the audio rack doors do not have colored
glass. Placing the unit behind such doors may pre-
vent proper remote controller operation.
• If there is any obstacle between the remote control-
ler and the remote control sensor, the remote con-
troller will not operate.
Installing the remote controller batteries
Using the remote controller
3
2
1
DTR-5.1
Standby indicator
Remote control sensor
30˚
30˚
approx. 5 m
(16 feet)