AU

lilDililt@

Ol-\c-€

Ve€s,e,,.t

OPERATING INSTRUGTIONS

AND

CONNECTIONS

SA

SERIES

MIXER AMPLIFIERS

SYDNEY

'12G124 Beoconsfield

St

AUBURN NSW 2144

Pri\ote Bog

114

ERMINGTON NSW 2115

Phone (02) 647

1411

Fcx (02) 648 3698

MEI.BOURNE

4/2630

Howteys Rood

NOTNNG HILI VIC

3168

P,

O. Box 468

MT WAVERIfY VIC

3149

Phone (03) 562 8566

Fox (03) 562 8781

Audio Telex Communicolions Ply Lld

BRISBAI{E

42 Commerciol Rood

P,

O, Box

871

FORIruDE VALLEY

OLD 4M6

Phone (07)

852 1312

Fox (07) 252 1237

PERIH

Unit 7/M{6 Kent

ADEWDE

Street

Eleclronic Concepts

Connington

P,

O, Box 489

Iel (09) 356

61A7

76 George

St,

P,

O, Box 7034 theborton

HuttSt50Ol

2761

Tel (08) 234 9444

Fox (09) 356

2762

Fox (08) 234 9441

NEW ZEAIAND

8 Collins Sfeet

MORNINGSIDE

AUCKLAND

Phone (tl9) 86 7032

Fox (09) 89 4588

SA SERIES AMPLIFIERS OPERATING INSTRUCTIONS

SA SERIES MIXER AMPLIFIERS

Congratulations on

your

purchase

of

our SA series mixer amplifier.

As you are no

doubt aware , mains power must be disconnected before removing the lid or making any internal adjustments or connections to the amplifier. The SA Series Mixer Amplifiers are two rack height units suitable for direct rack mounting in a standard with

482mm rack format, or desV table mount by means of the rubber feet provided. They are equipped

lour

balanced microphone inputs,

one line

input

and two

auxiliary inputs (switched).

The

following informa tion will provide setting up and connectior(iirformation for use in a conventional sound reintorcement system. More detailed information and performance data is available from your dealer

or

any Audio Telex

Communication's oflice.

SETTING UP

For normal operation the master gain control should be set at mid position and the various microphone , line or auxiliary cpntrols adjusted to their desired level. See details under

" controls" below.

PANEL CONTROLS (fig 1

)

I a,)

I e- lT tl

I r(

'n t r -

9l

?( loroo vrcr i

Mr'

-:_

o rlo rj-o

13

79

:l to r(

,7 l0

,\ -/9 i'\ -,e i' '"*:t t";lt r_l)

7...." MASTER " This control adjusts the overallvolume from the output of the mixer section of the amplifier.

Normal position

for

this control

is

5

,

which

will

enable the overall volume level from

the

amplifler

to

be adjustecl up or down as required.

1...." MIC

"

Marked one to four, these controls will respond to microphone inputs connected at the rear of the amplifier.The setting setting

will

depend upon

the

sensitivity

of the

microphone, which

is

connected. Generally a of six to seven is ideal for most dynamic microphones with an impedance of 200 ohms, however the purpose of multiple microphone inputs is to enable microphones o{ varying levels to be mixed to produce the desired performance level.

2...." LINE

"

The line input will respond to inputs connected to the appropriate connections at the rear of the amplilier.Generally, program sources

sucfi as a tape deck,

cd

disc

player, telephone

line

or wireless microphone can be connected to this input.

3...." AUX " The auxiliary control is used in conjunction with the switch marked " AUX1 - AUX2 "(4). Auxiliary inputs such as tape decks, background music players, radio tuners or wireless microphones are some of the sources normally connected to these inputs. The switch

"

AUX1 - AUX2 " should be pressed " in " to connect auxiliary input one and

"

out

"

to

connect auxiliary input two. Note that it

is

not possible

to

amplify both auxiliary inputs simultaneously , although they can be permanently connected , ( see connection details ) .

5...."

BAS.S

"

The bass

control

will

normally

be

operated in

the zero

position to obtain a

flat

overall responsefor the amplifier. To boost the bass response

ol the

amplilier turn the control clockwise towards five. To cut bass response turn the cantrol counter clockwise towards five.

6...." TREBLE response

" The treble control

will

normally

be

operated

in the

zero position

,

which sets

the

treble of the amplifier for a flat performance. To boost the high frequency perform ance of the amplilier

, adjust

the

control cloclarvise towards five.

To cut the

high frequency response

, turn the

control counter dockwise towards five.

9...." VU METER

"

Marked in decibel graduation from +3

to

21

,

the light emitting diodes will indicate the volume level at the output of the amplifier. For normal operation the l.e.d.s glow green as they modulate with the output level of the amplifier.

lf

the lights cunsistently indicate red, the amplifier

is being

over-driven

, resulting in distortion in the quality of the output signal.

8...." POWER

"

This switch turns on or off the mains power to the amplifier. An Le.d. glows red

to

indicate the amplifier is turned on.

OPEBATI NG INSTRUCTIONS SA SER]ES AMPLIFIERS

CONNECTIONS

(fig2) o-o

o

#1.

o ol

O O O-'..o/

AUxz AUxl LrNE

-.---O aa-i""

(. o)

Mrc4

7--.,

i 'o ol i I vO

:

)-

IL do

1.... Three pin IEC mains power inlel24Ol120 vac with built in fuse drawer and spare fuse. Ensure the mains cord is disconnected before replacing the fuse.( Fuse sizes are indicated further on in these instructions.

)

2.... Terminalstrip lor speaker connections are from left to right as follows; term 1..... B ohms) term 2.....

I

ohms) term 3..... Common return for 70 and 1OOvolt line.

term 4..... 70 volt output.

term 5..... 100 volt output.

term 6..... Spare( ldealfor connection of tone generator) lerm 7..... Spare( remote start or any ancillary control

)

3....24 volts dc power source input, two post type terminals RED + BLACK -

.

4.... DC low voltage fuse . Remove with a screwdriver after disconnecting mains power.

5.... External aluminium heat sink. As this unit generates

heat

during continuous operation , care should be taken to avoid skin contact wilh it.

6.... Auxiliary inputs, connections are twin RCA type phone connectors

, allowing up to two auxiliary sources to be connected.

7.... Balanced $ansformer output, male XLR socket. Pin connections... 1.. eafih 2... active 3... active.

8.... Tape

recorder output monauraloutput.

,

twin

RCA phone connectors to enable

left and right

stereo connection for

9... Line input, twin RCA phone type connectors.

10... Four XLR female microphone inputs, accept 200 ohms balanced microphones. Connections

Pin 1... earth Pin 2...active Pin 3...active.

OPERATING INSTRUCTIONS SA SERIES AMPLIFIERS

SPECIAL ACCESSORIES

TONE GENERATORS

;

Four types of tone generators are avail able as options . They are easily fined by first removing the mains cord and then ,

by

means

of

screws

on

either side, remove

the

lid. Attach the module to the metal base of the amplifier, using the adhesive tape provided. Ptug the seven pin plug into the socket as shown on the diagram supplied with the tone module. Replace the lid and reconnect the mains cord. Note the module can

be

switched

on off

from

a

remote connection by utilising the spare terminals described in "CONNECTIONS" item 2 . Operation of the tone generator will automatically mute the line and auxiliary inputs, however

the

microphone inputs remain active to ensure paging is possible during an emergency.

Tone Generators avaitable

;

ATC5227 Continuous beil

AfC5228 Pre announce chime

ATC5229 Evacuatlon tone

ATC5230 Alert tone

MICROPHONE LINE TRANSFORMER SA4012 ; When long microphone lines are utilised , there is atways a risk of inducing hum or noise , particularly when there is electrical interference in the vicinity of the cables.

The SA4012 is a

"

plug in

"

balanced 200 ohm mic line transformer with a nu-metal shleld,which will reduce the possibility of induced hum and noise. .lt is fitted into the sockets provided for each micro phone input

, inside the amplifier.

To

fit

the SA4012 side,remove

, disconnect the mains power and remove the lid , by means of the screws

at

either

the

existing jumper plug

for the

reqired input. Plug

the

SA4012 into

the

appropriate input socket, located on the circuit board .(see diagram with SA4012

)

VOTCE inputs

OPERATED MUTTNG MODULE TX3010; Automatic muting

is

possible

from

microphone input

one

, which

is

a

of ail

microphone , tine and auxitiary designated priority input.Voice operation

of

a microphone in this input witl cause the module to switch off all other inputs. This function is ideal for muting background music or other sources during paging.

To fit the TX3010 module, screws

on

either

side discunect

the mains power and remove the lid of the amplifier by means of the

. Remove the jumper plug from

the

socket adiacent microphone input

one

( see

MIC/LINE INPUT CONVERSION MODULE ;

Any

microphone input

on the 5460

and SA120

can

be converted to an extra line input by means of the TX3011. The function is useful for accepting high level paging inputs such as a telephone or telecom line.

To fit the TX3011 disconnect the mains and remove the lid. Remove the existing jumper plug lrom the required mic input socket located on the circuit board. Plug the TX3011 into the socket and replace the rid.

FUSE SIZES SA AMPLIF]ERS

MAINS FUSE

RATINGS

SA3O.....1AMP

SB

SA6O.....2AMP

SB

SA12O..4AMPS

SB

DC FUSE RATINGS

3AMPS SB sAMPS SB

10 AMPS SB