Toa A-1724 - Manual (Page 4)

4
When Installing the Unit
• Never plug in nor remove the power supply plug
with wet hands, as doing so may cause electric
shock.
• When unplugging the power supply cord, be sure
to grasp the power supply plug; never pull on the
cord itself. Operating the unit with a damaged
power supply cord may cause a fire or electric
shock.
• When moving the unit, be sure to remove its power
supply cord from the wall outlet. Moving the unit
with the power cord connected to the outlet may
cause damage to the power cord, resulting in fire or
electric shock. When removing the power cord, be
sure to hold its plug to pull.
• Do not block the ventilation slots in the unit's cover.
Doing so may cause heat to build up inside the unit
and result in fire.
• Avoid installing the unit in humid or dusty locations,
in locations exposed to the direct sunlight, near the
heaters, or in locations generating sooty smoke or
steam as doing otherwise may result in fire or
electric shock.
When the Unit is in Use
• Do not place heavy objects on the unit as this may
cause it to fall or break which may result in
personal injury and/or property damage. In
addition, the object itself may fall off and cause
injury and/or damage.
• Make sure that the volume control is set to
minimum position before power is switched on.
Loud noise produced at high volume when power is
switched on can impair hearing.
• Do not operate the unit for an extended period of
time with the sound distorting. This is an indication
of a malfunction, which in turn can cause heat to
generate and result in a fire.
• Contact your TOA dealer as to the cleaning. If dust
is allowed to accumulate in the unit over a long
period of time, a fire or damage to the unit may
result.
• If dust accumulates on the power supply plug or in
the wall AC outlet, a fire may result. Clean it
periodically. In addition, insert the plug in the wall
outlet securely.
• Switch off the power, and unplug the power supply
plug from the AC outlet for safety purposes when
cleaning or leaving the unit unused for 10 days or
more. Doing otherwise may cause a fire or electric
shock.
CAUTION
2. GENERAL DESCRIPTION
Equipped with 6 Microphone inputs and 5 AUX inputs (simultaneous use of 9 inputs possible), TOA's A-1706,
A-1712, and A-1724 PA Amplifiers are designed to suit PA system applications such as announcements,
BGM and broadcasting in mosques, churches, large rooms and factories.
3. FEATURES
• Power output of 60 W (A-1706), 120 W (A-1712), and 240 W (A-1724).
• All microphone inputs are provided with phantom powering (ON/OFF selectable) and electronically-balanced
combined XLR/phone jack connectors.
• Convenient 2 zone-selector switches for broadcasting.
• An equalizer or other signal processor connectable between PWR AMP IN and LINE OUT terminals to make
fine sound adjustment.
• Tone controls (bass and treble).
• Output level meter.
• Master volume control for overall input signal level adjustment.
An all-pole mains switch with a contact separation of at least 3 mm in each pole shall be incorporated in
the electrical installation of the building.