Front Panel Controls And Features; Rear Panel Controls And Features - Toa M-9000 Operation & Instruction Manual

Front Panel Controls and Features

Item Name
1 POWER ON-OFF Applies line power. Two-position
SWITCH pushbutton switch for on-off modes.
2 METER Indicates the output level of the
amplifier. At rated output, it shows
0 VU (continuous sine-wave signal
input).
When power is turned on, meter
illuminates.
3 INPUT VOLUME
Adjust gain of INPUT #1-#6
respectively.
CONTROLS
Adjust bass response.
4 BASS CONTROL
Turn clockwise (CW) to boost and
counterclockwise (CCW) to
attenuate the bass response. Tone is
flat at center.
5 TREBLE Adjust treble response.
CONTROL
Turn CW to boost and CCW to
attenuate the treble response. Tone is
flat at center.
6 TONE SWITCH Selects IN/DEFEAT of the BASS and
TREBLE CONTROLS. When this
button is depressed
and TREBLE Controls are active.
When pressed again
become inactive to make tone flat.
(DEFEAT)
Adjusts overall gain of unit.
7 MASTER
VOLUME
CONTROL
8 OUTPUT SWITCH This is an output ON/OFF switch.
When pressed
obtained at the output terminal.
When pressed again
signal is obtained.
9 HEADPHONE Connects to headphones with
JACK impedance of more than 8
10 HEADPHONE Adjust the volume for headphones.
VOLUME Turn CW to increase.
CONTROL
11 VU RANGE Selects meter-sensitivity.
SWITCH When set to "4dBm" position, the
meter shows 0 VU if the output level
of amplifier is +4dBm. When set to
"18dBm," it shows 0 VU if the
output level is +18dBm.
Usually set the switch to "4dBm" position, since the
amplifier's rated output is +4dBm.
Place it in "18dBm" position when more output is
provided.
Function/Description
the BASS
they
output signal is
no output

Rear Panel Controls and Features

Item Name
1 AC POWER
SUPPLY CORD
2 AC OUTLET
(Unswitched)
3 AC FUSE
(250V 0.3A)
OUTPUT
4
TERMINALS
5 MODULE INPUT
PORTS
6 AUX OUT
7 BRIDGING
INPUT/OUTPUT
8 MUTE
TERMINAL
9 EARTH
TERMINAL
— 1 —
Function/Description
Connects to power source.
Provides AC power for auxiliary
equipment with power consumption
of up to 500W.
Protects amplifier from excessive
current drain. Replace only with
same type fuse. Refer to qualified
service personnel if fuse blows
repeatedly.
Connect to power amplifier(s).
Accept PLUG-IN MODULES which
are optionally available. Choose the
desired modules according to
application.
Serves as a sub-output for connecting
other equipment having input
impedance of more than 10k
as a tape recorder.
This terminal is used as a mixing bus.
Mixing is achieved when the similar
terminal of another amplifier is
connected to this terminal.
The output level taken from this
terminal is independent of the
MASTER VOLUME CONTROL,
BASS and TREBLE CONTROLS, so
that the terminal can also be used as
recording output. The input
impedances of the equipment to be
connected here should be 10k
higher.
With modules employing muting
function, which are optionally
available, the input signals fed to the
modules are muted by short-circuiting
at this terminal.
Normally connects to a record
player's ground.
such
or