6
Match the polarity (+ and –) on the 
batteries with the + and – markings in 
the battery compartment.
Battery cover
To remove the batteries, remove battery 
“3” first.
Notes:
• The memory backup batteries will not be 
consumed as long as the power is supplied 
from an AC outlet, loaded 10 batteries, or 
car battery (DC12V). However, if no 
power is supplied to the system, the 
memory backup batteries should be 
replaced with new ones approximately 
every 12 months to securely maintain the 
contents of the memory.
• Before replacing the memory backup 
batteries, always connect the AC power 
cord to the system to prevent the contents 
of memory from being erased.
• When a power failure occurs, the time 
indication disappears from the display to 
save the battery power of the memory 
backup batteries.
CAUTION:
To avoid battery leakage or explosion:
• When you need to replace the batteries, 
replace all batteries at the same time with 
new ones. Before replacing, you need to 
supply AC power to the system.
• Do not use an old battery with new ones.
• Do not use different types of batteries 
together.
Operating the system on 
batteries
“R20/D(13F)” size 
batteries (not supplied)
To remove the batteries, remove battery 
“10” first.
Notes:
• When you operate the system on mains 
(AC) power or on car battery (DC12V), the 
power source automatically switches from 
batteries to AC or DC12V. However, you 
should remove the 10 batteries when 
operating on AC power or car battery 
(DC12V).
• When the batteries are exhausted, the 
following symptoms will occur:
– Mistracking occurs during disc playback.
– “DC OFF” flashes on the display, then the 
power goes off.
If this happens, replace the batteries.
CAUTION:
To avoid battery leakage or explosion:
• Remove the 10 batteries when the system is 
not in use for an extended period of time.
• When you need to replace the batteries, 
replace all batteries at the same time with 
new ones.
• Do not use different types of batteries 
together.
• If the power is supplied through the 
batteries, the display will be blank with the 
system turned off (at standby).
Unplug the AC power cord from the 
system to supply the power through the 
batteries; otherwise, the system does 
not work.
Front view
Connecting the iPod (See page 13.)
iPod (not supplied)
iPod cable 
(supplied)
iPod stand 
(supplied)
To dock connector
Disconnecting the iPod
• When disconnecting the iPod, make sure the 
system is turned off.
• To remove the iPod cable from the iPod, 
hold the buttons on the sides and pull.
 Connecting the auxiliary equipment 
(See page 14.)
Auxiliary equipment (not supplied)
Stereo mini plug cable (not supplied)
To headphones jack
Disconnecting the auxiliary equipment
When disconnecting the auxiliary equipment, make sure the 
system is turned off.
RV-NB20[J].book  Page 6  Tuesday, August 22, 2006  3:28 PM