Audio Research Reference 5 SE, Руководство пользователя

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5
Preface
Please take time to carefully read and understand
the following instructions before you install or
attempt to operate your Audio Research Reference
5 SE preamplifier. Becoming familiar with the
product and its correct operating procedures will
help assure you of maximum musical enjoyment
and reliable operation. The effort you invest now
will be well rewarded in the years ahead.
Warnings
1. To prevent fire or shock hazard, do not expose
this product to rain or moisture.
2. This unit operates on voltages which can cause
serious injury or death. Do not operate with
covers removed. Any necessary servicing
should be carried out by your authorized Audio
Research dealer or other qualified electronics
technician.
3. The power cord supplied with this unit is safety-
tested and is equipped with a proper grounding
plug. If used normally, it will provide a safe
earth ground connection of the chassis. Defeat
of the grounding plug or use of a power cord
without a grounding plug, or any unauthorized
modification of the active circuitry or controls of
this
unit, automatically voids warranty
coverage, and could cause injury or death.
4. For safe operation and protection against fire
hazard, replace fuses only with those of the
same type and rating as those supplied with this
unit.
Packaging
Save all packaging accompanying this product.
You have purchased a precision electronic
instrument, and it should be properly cartoned any
time shipment becomes necessary. It is very
possible that this unit could be damaged during
shipment if repackaged in cartoning other than
that designed for it. The original packaging
materials help protect your investment from
unnecessary damage, delay and added expense
whenever shipment of this unit is required.
DO NOT ATTEMPT TO OPERATE THIS EQUIPMENT
BEFORE INSTALLING THE NUMBERED VACUUM TUBES
IN THEIR RESPECTIVE SOCKETS.
Installation of Vacuum Tubes
This unit has been shipped with the vacuum tubes
installed in a protective foam block under the top
cover. Using a phillips-head screwdriver to loosen
the fastening screws, remove the top cover and set
aside. Remove the tubes carefully from the
protective foam block and store the foam block
with the carton.
After removing the top cover and the vacuum
tubes packed in protective foam, see the
accompanying illustrated sheet for instructions on
installing the tubes for your Reference 5 SE in their
proper locations in the power supply and audio
section. Note that the numbers written on each
tube correspond to a ‘V’ number printed on the
circuit board next to each tube socket. Insert each
tube firmly, carefully aligning the tube pins with the
corresponding socket holes.
WARNING!
Do not attempt to install or remove
any vacuum tubes unless this unit is
turned off and disconnected from the
A.C. power outlet. Unit should be connected to the
A.C. outlet and turned on only after all vacuum
tubes have been installed and appropriate panels
have been replaced and fastened. See owner's
manual for installation instructions.
Before replacing vacuum tubes, turn off unit,
disconnect from A.C. outlet and allow installed
tubes to cool before attempting to remove them.
Hot tubes may cause burns or other injury if not
allowed to cool before removal.
When removing or installing tubes, do not touch
tube socket contacts or other components as the
circuit may retain sufficient levels of voltage and
current to cause injury or death.
Contact your dealer or Audio Research Customer
Service (763-577-9700) if you have any questions
about installing or replacing vacuum tubes in this
unit.