Toa M-9000 Скачать руководство пользователя страница 3

 This amplifier  has six  INPUT PORTS for  PLUG-IN  MODULES.

Select the desired ones for  each  application.

 Plug  the  modules  into  INPUT  PORTS, sliding them between the

guide rails, and secure each with two screws.

 

When not all  INPUT PORTS are occupied, cover the vacant

PORTS with  blank  panels, and  secure them with screws.

 PLUG-IN  MODULES  are  provided in the following:

Balanced  low impedance microphone

preamp module (with presettable low-cut

filter, high-cut filter and gain controls)

Balanced low impedance microphone

preamp module (with  presettable low-cut

filter and  gain  controls)

Equalized mag. phono preamp.  module

(with  presettable gain control)

Unbalanced high impedance auxiliary

preamp module  (with  presettable

gain  control)

Balanced 10k
Balanced 600

bridging  transformer module

line matching

transformer  module

Balanced paging input module

(with  presettable gain control and MUTE Delay)

Balanced 600

line output  module

(with  presettable gain  control)

Signal tone generator module

(with presettable output level control)

1 kHz sine wave

Yelp and  buzzer

One-tone chime and  continuous one-tone chime

H-01, H-21, H-31

H-02,H-22, H-32

E-01 , E-11

X-01,  X - 1 1 , X-21

B-01, B-11

L-01, L-11, L-41

I-01

T-01

S-01

S-02

S-03

*With H-21, H-22 and X-21  modules employing volume remote

control functions, connecting a  potentiometer  (10k  ohms) to the

terminal of any of these modules permits the sound volume to  be
remotely controlled by means of the connected potentiometer.

* H-31  and  H-32  modules  incorporate  muting  functions. If a switch

is connected to MUTE TERMINAL on  the  rear  panel of the ampli-

fier and  closed, these input  signals can be passed  through. When

the switch  is opened, the input signal  is muted.

* E-11 ,  X-11 , B-11  and  L-11  modules incorporate muting functions.

If a switch is connected to MUTE TERMINAL on the rear  panel

of the amplifier and  closed, these input signals can  be muted.

* L-41  incorporates  signal  activated  muting  function.  Incoming

input signal  causes mute terminal to be grounded.

* T-01  is used to feed out  mixed signals to external equipment.

*T-01  should be inserted only in  INPUT PORT

 #5

 or

 #6.

(See PLUG-IN  MODULES  for details)

 Connect  power  a m p l i f i e r ( s )  to the output  terminal of M-900A.

Select 600

or 150

connection, provided at the output  ter-

minal, to match the input impedance of a m p l i f i e r ( s ) .

 AUX  OUT

For this connection, use a  Phone Plug  (Double pole) with  two-wire

shielded cable.

600-ohm  Connection

Strap  terminals 2 and 3 .

4

3

2

1

GND

Hot

Common

Earth

150-ohm Connection

4

3

2

1

GND

Hot

Common

Earth

Strap 

terminals 1  and 2 , 3 and 4 .

Hot

Common

Earth

Input Connections

Output Connections

External equipment such as

tape recorders, etc.

—  2  —

Содержание M-9000

Страница 1: ...or magnetic phono inputs the X 01 series and X 11 series Auxiliary Preamplifiers for high level sources the B 01 series and B 11 series Bridging Transformers for bridging high impedance lines the L 01...

Страница 2: ...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 Item Name Function Description...

Страница 3: ...and X 21 modules employing volume remote control functions connecting a potentiometer 10k ohms to the terminal of any of these modules permits the sound volume to be remotely controlled by means of t...

Страница 4: ...NE QUALITY When adjusting tone quality place the TONE SWITCH in IN position thus activating the BASS and TREBLE CONTROLS Each control provides frequency response characteristics of flat in center boos...

Страница 5: ...on receipt of the amplifier shipment please inspect for any damage incurred in transit If damage is found please notify your local TOA representative and the transportation company im mediately State...

Страница 6: ...Block Diagram M 900 A 5...

Страница 7: ...30 mW to 600 ohms 200 mW Aux Balanced 10k ohms 2 dBm Less than 1 5 dB no load to full load Master volume min 90 dB Master volume max 77 dB Bass 10dB at 100 Hz Treble 10dB at 10 kHz 6 Input gain contr...

Страница 8: ...ith TOA INTERCOM SYSTEMS It accepts paging signals from the intercom station A group of special signal generating modules is also available for catching attention before announcement and testing withi...

Страница 9: ...dB oct max attenuation MUTE DELAY CONTROL I 01S HIGH CUT FILTER CONTROL 4 2kHz 6dB oct max attenuation This provides flat characteristics at full CW position and attenuation in low frequency by turnin...

Страница 10: ...Block Diagrams Plug in Modules 10...

Страница 11: ...trol of the corresponding input so that an appropriate sound level may be obtained through the remote volume control T 01 SERIES BALANCED 600 ohm LINE OUTPUT MODULES This series of modules of rated ou...

Страница 12: ...nd T Lines R line Approx 9mA DC plus audio signals of 30dBm max T line Approx 9mA DC Rack mounting Brackets Perforated Panel Silver Silver PF 911 MB 931A MB 921A A 912A A 903A P 906A P 912A P 924 HOW...

Страница 13: ...Schemiatic M 900 A...

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