Audio Research Reference 75, Руководство пользователя

Страница: 4 / 10

4
Preface
Please take time to carefully read and
understand the following instructions
before you install or attempt to operate
this equipment. 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.
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.
Accessories
1 – Phillips head screwdriver for cover
removal
1 – Plastic screwdriver for bias adjustments
User replaceable spare line fuses include:
1 – 5 Amp MDQ slo-blo with 120V units or
100V units
1 – T4A 250V slo-blo with 220V/240V units
Warnings
1. Do not touch hot tubes. Keep away from
children.
2. To prevent fire or shock hazard, do not
expose your Reference 75 to rain or
moisture.
3. Do not place objects containing water
on top of this unit.
4. This unit contains voltages which can
cause serious injury or death. Do not
operate with covers removed. Refer
servicing to your authorized Audio
Research dealer or other qualified
personnel.
5. The 12-gauge, 3-conductor power cord
on your Reference 75 is equipped with a
standard 3-prong 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. Refer
to
the section on ‘AC Power
Connections’ for detailed information.
6. The appliance coupler at the rear of this
unit must be accessible for emergency
power disconnect.
7. For safe operation and protection
against fire hazard, replace fuses only
with the same type and rating of fuses
specified.
Warning
Read Owner’s Manual before
installing or operating this
product!
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.