Naim Audio NAC-N 172 XS - Manual (Page 10)

E8
NAC 282 Preamplifier
10 NAC 282 Introduction and Installation
The NAC 282 preamplifier does not incorporate an internal power supply but must be
used in conjunction with either a Naim power amplifier incorporating a preamplifier
power output, or with an appropriate Naim power supply. A separate NAPSC supply that
provides power to the display and control circuits is supplied. Diagrams 11.3 and 11.4
illustrate two NAC 282 power supply options.
The preamplifier and power supply should be installed on a dedicated equipment
stand intended for the purpose. Do not stand either directly on top of another item of
equipment. Care should be taken to ensure that the preamplifier is level.
The preamplifier and any power supply should be installed in their final locations before
connecting cables or switching on. Ensure that the preamplifier volume is turned down
before switching on.
The following Section 10 paragraphs describe installation features and functions specific
to the NAC 282. Operational features common to all preamplifiers and integrated
amplifiers are described in Section 28.
10.1 Source Inputs and Record Outputs
The input selection buttons arranged along the upper bank
select the source signal to be routed to the power amplifier
and the loudspeakers. Below them, in the lower bank, are a
corresponding array of buttons which select the signal to be
routed to the preamplifier’s record outputs.
These separate source and record sections enable one
source (a CD player, for example) to be listened to whilst
the output from another (say, the tuner) is simultaneously
selected for recording.
Note: It is possible to lock the record controls and prevent
accidental de-selection during recording. Record-lock is
switched on or off by depressing the source mono button
four times within six seconds.
10.2 Input Socket Assignment
The NAC 282 has six DIN input sockets and two alternative
pairs of RCA Phono sockets. The RCA Phono sockets can be
assigned individually to the CD and AUX 2 input buttons in
place of the DIN sockets.
Input assignment setup is accessed through the NAC
282 program mode. To switch into (or exit from) program
mode press and hold the
prog key on the remote handset
(in preamplifier mode). Program mode is indicated by a
flashing indicator on the front panel volume control and the
record selection indicators extinguishing.
Note: If no function is operated within five minutes of
entering program mode the NAC 282 will return to normal
mode automatically.
Once in program mode press and hold the remote handset
1 key to select or de-select the RCA Phono socket input for
CD, and the remote handset 6 key to select or de-select
the RCA Phono socket input for AUX 2. The corresponding
front panel input buttons can similarly be used to select or
de-select the RCA Phono socket inputs. The appropriate
input button indicator will flash three times on selection of
the RCA Phono option and once on selection of the DIN
option.
To exit from program mode press and hold the prog key on
the handset until the record select indicators are restored
and the volume indicator stops flashing.
11 NAC 282 Controls and Connections
11.1 NAC 282 Front
volume balance mute mono
source
bank
record
bank
source and record
selection
Operational features
common to all
preamplifiers and
integrated amplifiers
are described in
Section 28