CDR 20 (serv.man12) - Harman Kardon Audio User Guide / Operation Manual. Page 12

12 INSTALLATION AND CONNECTIONS

Important Note: To prevent possible damage
to your speakers or other components in your
audio system, we strongly recommend that ALL
system components, including the CDR 20, be
turned off and unplugged from their AC power
source when any connections are made or a
new component is installed.

Locating the CDR 20
Since the CD transports in the CDR 20 are preci-
sion instruments, they are subject to interference
from vibration. To minimize the possibility of
skipping during playback or recording, it is rec-
ommended that the unit be placed on a level,
solid, vibration-free surface.

When installing the CDR 20 in a cabinet or tight
space, always make certain that there is enough
room in front of the unit for the disc drawers to
open fully, and that there is enough space above
the unit so that discs may easily be inserted in
the disc drawers.

In addition to the safety considerations outlined
on page 4, it is also recommended that the CDR
20 not be placed in a location that is subject to
direct sunlight or extreme heat or cold, as these
conditions may damage the discs used in the
player, or the player itself. Note that audio ampli-
fiers or high-power receivers, as well as certain
other electronic products, may generate signifi-
cant heat. For that reason, do not place the CDR
20 directly on top of an amplifier, receiver, or
other heat source. Always allow at least 2 cm of
free space on all sides of the CDR 20, as well as
other electronic products, to allow for proper
ventilation.

The unit should also be kept away from sources
of water or damp conditions.

Connections to Your Audio System
When connecting the CDR 20, think of the
process as if your were connecting a standard
CD player and a tape or cassette recorder, with
the addition of the digital connections.

Play-Deck Connections
The rear-panel connections labeled “CDP” refer
to the outputs of the Play Deck 3, which
functions as a standard CD player. Connect the
analog left/right CDP outputs ¡ to the CD
inputs on your receiver, preamp or surround
processor.
For best playback results, a digital connection is
recommended, using the coaxial or optical ¢
• outputs. Connect them to the matching digi-
tal inputs of your receiver, preamp, processor or
external digital decoder.
Note that you may have to change a setting on
the receiver or processor to link the digital input
to the “CD” button or input selector. Consult the
owner’s manual on that device for details, as this
configuration may vary from unit to unit.

Record-Deck Connections
The rear-panel connections labeled “CDR” refer
to the inputs and outputs for the Record Deck
%

. Depending on the capabilities of your

receiver, preamp or processor, you may find it
convenient to connect the analog inputs and
outputs to the jacks marked for a tape recorder.
As the CDR 20’s functions resemble those of a
standard tape recorder, this might make it easier
to select it as an input on your receiver or pre-
amp. Connect the analog CDR-Out jacks ™ to
the Play/In jacks of a Tape or Aux input on your
receiver or preamp. Connect the CDR-In jacks
£ to the Tape Rec/Out jacks on your receiver or
preamp.

To play the output of the Record Deck through
the digital decoder in your receiver or an exter-
nal processor, connect the CDR Coax-Out ∞
jacks to the matching digital-input jacks on your
receiver or processor. Note that you may have to
change a setting on the receiver or processor to
link the digital input to the “Tape” button or the
specific input selector associated with the digital
inputs. Consult the owner’s manual on your
receiver or processor for details, as this configu-
ration may vary from unit to unit.

To make recordings from external digital
sources, such as a CD, DVD or MD player, con-
nect the CDR Coax-In jacks §6 or CDR
Optical In Jack ¶ on the CDR to the digital
output jacks on your receiver or processor. If
your receiver does not have digital-output jacks,
you may connect the CDR Coax In jacks §6
or CDR Optical In Jack ¶ on the CDR 20
directly to the digital outputs on your CD player
or other digital device.

Connections to a portable digital CD or MD
player may also be made by connecting the
Coax Digital Output of the player to the Front-
Panel Digital Input 6 on the CDR 20. Note
that when both digital inputs are connected, the
CDR 20 will give priority to the Front-panel
input 6.
If it is impractical to disconnect the front-panel
input when you need to use the rear-panel jack,
simply turn off the device connected to the
front-panel input. This will stop the digital sig-
nal, and permit the rear-panel jack to be used.

COAX CONNECTIONS: Although digital-coax
connections use the same type of “RCA” phono
jack as standard analog signals, please take spe-
cial care to connect digital signals only to digital
jacks. In many cases, the digital jacks may be
identified by an orange colored insert ring
around the center of the jack. When making dig-
ital connections, be sure to use coax-intercon-
nect cables, such as the one supplied with the
CDR 20 or cables intended for video applica-
tions. Even though they have the correct type of
RCA connector, do not use audio-interconnect
cables that have twisted pair construction, as
they are not appropriate for digital signal use. If
you have any questions about the type of cables
to use with the CDR 20, consult your dealer.

OPTICAL CONNECTIONS: There are a number
of different types of optical connections, so make
certain that you use only “TOS” type optical
cables with the CDR 20. To ensure proper con-
nection of optical cables, fully insert them into
the jack until there is an audible click. This tells
you that the connector has been completely
inserted. Remember to save the plastic dust caps
that cover the optical jacks, and replace them
when a jack is not in use to prevent dust from
entering the connection point.