ATI Technologies AT7012 Benutzerhandbuch - Seite 8
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jack, it is still possible to activate the unit for automatic
turn on when a Switched Outlet is available on the rear
of the source device. To control the amplifier in this
fashion, you will need a small AC to DC power con-
verter, capable of delivering a 3.3 to 24 volt DC signal.
The DC voltage should terminate in a standard 3.5mm
type mini plug. This type of converter may be obtained
as a Power Adapter from many electronics retailers.
When installing, press the Main Power Switch on the
front panel of the amplifier in so that it is in the ON
position. Plug the AC adapter into a switched outlet on
the source device that will be activated when you wish
to have the amplifier turn on. This may be the switched
outlet at the rear of an AC receiver or other audio
equipment. Connect the 3.5mm mini-plug from the
adapter to the trigger-input jack on the back panel of
the amplifier. The amplifier will now turn on and off
automatically, based on the status of the controlling
device.
Power Connection
Once all audio and system connections have been
made, connect the supplied power cord to the amplifier
first, and then connect it to an AC power source. Please
make certain that the amplifier is turned off and that the
device connected to the remote trigger input is off
when connecting the power cord and plugging it into an
AC outlet.
When the power cord is plugged into the wall outlet,
the front panel power switch will dimly illuminate and
pulse slowly. The amplifier is in the standby mode and
draws less than 1 watt from the wall outlet.
CAUTION: Do not plug the amplifier directly into the
"Switched Accessory" outlet of another device! These outlets
are intended for use with low current draw products, such as
tuners, CD players or cassette decks. These cannot handle
the high current draw of a power amplifier. Using these out-
lets for a power amplifier is a significant safety hazard.
NOTE: It is not recommended that you connect other power
amplifiers, or products with a high current draw, to the same
AC power circuit as the amplifier. If this is unavoidable, the
Ultra-Soft-Start circuitry of your amp will prevent excessive-
ly high inrush current.
Amplifier Operation
Before turning on the AT7000, ensure that all precau-
tions and warnings have been carefully reviewed and
adhered to. Damage to the amplifier caused by improp-
er operation, wiring and/or ventilation will not be cov-
ered under warranty and ATI will not be liable for any
consequential damage or loss.
After all connections have been made you are ready for
operation. First, turn on the source components and
processor in your system. It is always a good idea to
AT7000 Manual
turn on your amplifier LAST. This avoids the possibil-
ity of any turn on pops or transients from other equip-
ment being amplified and sent to your speakers where
they may cause damage. Always start with a low vol-
ume level on your controller or preamp to avoid dam-
age to your speakers.
Manual On
Simply press the front panel power switch. There will
be a short pause from the time the power is turned on
until power is applied to the speakers. This is intention-
al, and protects your speakers from damage while the
amplifier stabilizes. The switch will stop pulsing and
the STANDBY LED will illuminate. After the turn-on
process is complete, the front panel switch will illumi-
nate fully, the STANDBY LED will turn off and the
amplifier will enter playback mode. To turn the unit
off, press the Power button again. The power switch
indicator light will dimly illuminate and pulse slowly.
Automatic On
Make certain that the connection to the controlling de-
vice is correct. Whenever the controlling device is
turned on, the amplifier will automatically turn on after
a short pause. This pause is intentional, and it protects
your speakers from damage while the amplifier stabi-
lizes. You may also hear a relay click as during start
up. This is also normal.
To turn off your amplifier, simply turn off the device
feeding the amplifier it's audio signals. The amplifier
will automatically go into a standby mode in a few mo-
ments.
Protect Indicator Light
This indicator circuit continually monitors the output
level of your amplifier. This light will come on if the
amplifier detects a fault condition on any channel or
either heatsink. The faults that are detected are 1) ex-
cessive DC offset, 2) over current, 3) a high frequency
oscillation or 4) over temperature.
AC Line Connector and Power Cord
Your amplifier is supplied with an internationally ap-
proved (IEC) power line connector that accepts the sup-
plied detachable, high-current capacity power cord.
WARNING: Under no circumstances should the round
third prong on the plug be cut, bent or in any other way
defeated as this may result in severe shock.
WARNING: Always turn off the amplifier and unplug
the power cord before making any electrical connec-
tions.
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Rev-11/19