Table Of Contents - Audio Research FOUNDATION Series Manual

Warnings.......................................................5
A note about packaging................................5
Before operating the VT80 SE ......................5
Installation ...................................................6
Top Plate ........................................................6
To remove the top cover (for VT80 SE units
sold outside of North America) ...................... 7
In your system ............................................... 7
Connections .................................................8
Back Panel Controls and Connections .........8
Input Connectors ..........................................9
Output Connectors .......................................9
Important ......................................................9
Matching........................................................9
A.C. Power Connection ............................... 10
Remote Turn-on ........................................... 11
RS-232 Control ............................................. 11
Operation ....................................................12
Front Panel Controls and Displays ..............12
Start-Up ........................................................13
Shut-Down ...................................................13
Hour Counter ...............................................13
Auto Shut Off .............................................. 14
Break-in ........................................................ 14
Auto Bias ..................................................... 14
Contents
Maintenance .............................................. 15
Vacuum Tubes ............................................. 15
Servicing ...................................................... 15
Caution ........................................................ 15
Cleaning ....................................................... 15
Disposal and Recycling Guidelines ............. 15
Warranty..................................................... 16
Specification ...............................................17
4
Warnings
To prevent fire, or shock hazard, do not
expose your VT80 SE to rain or moisture.
Do not place objects containing water on
top of this unit.
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.
The detachable power cord on your VT80 SE
is equipped with a heavy gauge, 3-conductor
cable and a standard three-prong (US)
grounding plug appropriate to the country
to which it is originally shipped. For absolute
protection, do not defeat the ground power
plug. This provides power line grounding
of the VT80 SE chassis to provide absolute
protection from electrical shock.
The appliance coupler (a.c. power connector)
at the rear of this unit must be accessible for
emergency power disconnect.
The VT80 SE shipped outside North America
is shipped with a protective, ventilated cover.
While the cover may be removed, its use is
recommended to prevent accidental contact
with the hot vacuum tubes.
For continued protection against fire hazard,
replace the fuse only with the same type and
rating as specified at the fuse holder.
The power button on the front of this unit,
when off, does not disconnect all power from
this unit. This unit is in sleep mode when
not on.
This unit is RoHS compliant.
A note about packaging...
Save all packaging in a dry place away from
fire hazard. Your VT80 SE amplifier is a
precision electronic instrument and should
be properly cartoned any time shipment is
made. You may not have occasion to return
your unit to the factory for service, but if that
should prove necessary, or other occasion
requiring shipment occurs, the original
packaging will protect your VT80 SE from
unnecessary damage or delay.
Before operating the VT80 SE
This unit has been shipped with the vacuum
tubes installed in protective foam in
separate boxes packed inside the shipping
carton. Included are two matched pairs of
KT150 power output tubes and two 6H30
tubes. Remove the tubes carefully from the
protective foam.
5