Audio Research Reference 5 SE, Руководство пользователя

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uneven speaker placement or imbalanced output
from a phono cartridge.
HOURS: When pressed, displays number of
operating hours vacuum tubes have been in
service.
WARNING: after replacing tubes, this
function should be reset to ‘0’ only by a qualified
technician. Hours display can be reset to ‘0’ by
pressing black button labeled ‘Reset Hours’ located
on upper right corner of circuit board directly
behind display window. The preamp must be “On”
to reset function – the service technician must be
careful to avoid any contact with other circuit
components during reset operation. Contact
Audio Research customer service (763-577-9700) for
information regarding this procedure.
Connections
INPUT CONNECTORS: The Reference 5 provides
seven pairs of BAL/SE input connectors: CD, Tuner,
Phono, Video, Aux1, Aux2 and Processor. The
BAL/SE selector button (front panel and on remote)
should be selected to match the type of
connection used (BAL or SE) on each input.
Connect either the BAL or SE connectors for each
input. Never connect the BAL and SE connectors
simultaneously for each input.
OUTPUT CONNECTORS: Two pairs of BAL/SE main
outputs are provided.
RECORD OUTPUT: The BAL/SE tape outputs should
be connected to your recorder's ‘Record’ or ‘Line’
inputs. These outputs provide a fixed-level two-
channel signal (L, R) to your recorder from
whichever input is selected. The non-variable
output level will be the same as the output of the
selected source.
It is possible to dub or copy from one recorder to
another by connecting the output of the source
recorder to an unused set of stereo inputs (Aux 1,
Aux 2). The signal will then be routed to the Record
Out connectors when that input source is selected.
12V IN/OUT REMOTE START JACKS: The +12V DC
input/output jacks provide the ability to remotely
turn on and off the preamp and other linked
components such as power amplifiers having similar
capabilities.
Installation Instructions
While the Reference 5 does not dissipate an
unusual amount of heat, it is important that it be
provided with reasonable airflow to assure long,
trouble-free operation. In addition, the following
installation guidelines will help insure maximum
sonic performance as well as reliable service:
1.
Operate unit in upright and horizontal position,
prefer-ably on solid, non-metal shelving.
2. Do not stack the preamp on top of a power
amplifier: not only could this cause overheating,
but hum may be introduced into the preamp
from the proximity of the amplifier's power
transformer. Do not stack components or other
objects directly on top of the Reference 5 SE.
3. Do not place or operate your preamp on a soft
or irregular surface such as a rug. This will
prevent proper ventilation.
4. Do not operate your preamp without the top
and bottom covers installed. These are required
both for safety as well as shielding from
interference (except in service operations by
qualified personnel).
Operating Procedure
Start Up:
1. Secure all rear-panel connections between
Reference 5 SE, power amplifier(s) and input
sources.
2. Plug three-prong power cord from rear of
chassis into grounded A.C. wall outlet. The
Power switch defaults to ’off’ when the unit is
plugged into a power receptacle.
3. Press power switch (either remote or front
panel). ‘Mute’ will flash in the display window
for approximately 40 seconds, then cease
flashing and remain in the display. Press ’Mute’
to initiate operation.
4. Select input source, then BAL or SE as necessary.
Shut Down:
1. Activate ‘Mute’ function.
2. Set Volume level to 0.
3. Turn off power amplifier(s).
4. Press Power switch to ‘off’.
5. Turn off input sources.