AUDIO TELEX TX3028 Service Information

Australian Monitor

1 Clyde Street, Silverwater NSW 2128 Australia

+61 2 9647 1411

www.australianmonitor.com.au

SERVICE INFORMATION

AUDIO TELEX

TX3028

VOX MODULE

CONTENTS:

SCHEMATIC DIAGRAM

INSTALLATION INSTRUCTIONS

1 2 3 4 5 6 78

A

B

C

D

8

7654321

D

C

B

A

Title

Number RevisionSize

A3

Date: 18-May-2006 Sheet of

File: C:\Protel Files\CDTRAX\CD6197-1.DDB Drawn By:

C20

47u

R28

10K

R27

47K

C21

47u

R26

47K

R25

10K

R24

5K6

VCC

R23

5K6

V3

V2

V1

VCC

C19

47u

VCC

C23

47u

R22

2K2

R21

2K2

IC6

D7

D6

D5

D4

D3

C22

820p

C18

4u7

C17

4u7

C16

4u7

C15

4u7

C14

4u7

C13

4u7

C12

4u7

C11

4u7

R20

10K

R19

5K6

R18

5K6

R17

33K

R16

1K

R15

1K

R14

100K

R13

100K

R12

22K

R11

22K

VCC

C10

820P

C9

820P

R10

100K

R9

100K

R8

5K6

R7

5K6

R6

1K

R5

1K

R4

22K

R3

22K

R2

33K

R1

33K

C8

47p

C7

47p

C6

4U7

C5

4U7

C4

4U7

C3

4U7

C2

4U7

C1

4U7

IC5B

IC5A

IC4

IC3

IC2

IC1B

IC1A

A

6V

11

RS

TX8200 MUTING

CD6197-1

8

7

6

3

2

1

4

3

2

1

5

6

7

8

7

6

3

2

1

4

3

2

1

8

7

6

3

2

1

5

6

7

8

X3/9

X3/8

X3/7

X3/6

X3/5

X3/4

X3/3

X3/2

X3/1

+6V

+12V LM7812

LK1

INSTALLATION

REMOVE 8 PIN CONNECTOR

MIXER PCB 6195 (X3)

ON

CONNECT LOOM OF PCB 6197

TO X3 ON PCB 6195

BLUE TRACE ON LOOM

SHOULD GO TOWARDS BACK

(SEEN FROM FRONT OF CHASSIS)

--------------------

THE

TX3O28

VOICE

OPERATED

MUTING

MODULE

FOR

THE TX8zOO

I NSTALLATION

I NSTRUCTIONS

Thank

you

for

choosing

an Audio

Telex

TX3028

voice

operatd

mute

module.

The TX3028

allows for

muting

of background

music

sources-

such

as

a CD

player

or

cassette

deck

when

a signal

is detected

at

ttre microphure

input

Ch. l,

(whici

is usuafy

the

paging

microphure

input)

in

the TX8200

stereo

mixer.

Installation

into

the Audio

Telex

fXgZOO

is made

simpiaby

utilising

a standard

.e,nd,

!n9

col3ector plug,

sup'plied

on the

module

and

a receptacle,

already installed

into

ttre

mixer.

pteasi

foU,ow

these-easy

instructions

for

installation.

g

The

installation

of the

TX3028

involves-

acce:s

to tne insiae

of

the

mixer.

Installation

should

only

be attempted

by a

qualified

technician.

Always

turn

off

the AC

power

and

remove

the AC

power

cord

before

attempting

to

access

the

inside

of the mixer.

Please

contact your

nearest

Audio

Telex

ofiice

for

detaiis

of

your

nearest

qualified

technician.

For

installation

into

the

TX8200

mixer:

Locate

the

empty

9

'end'

connector

receptacle

found

on location

X3

on the

mixer

PCB

behind

tle input gain

pot

for

Ch. l.

Connect

the

module

to

this receptacle,

ensuring

that

the

wires from

the connector

exit

towards

the

left

hand side

of the

mixer

when

looking

from the

front

panel

(oi

so that

the

blie trace

on

the wires

from the

module

is

facing

the rear

of the mixer).

Notes

The

TX3028

is

not suitable

for

installation

into

any

other

models

of

Audio

Telex

mixers

or amplifiers.

For

voice

operated

muting

suitable

for

other

models please

refer

to either

the TX30l0

module

or TX30l4

dual

priority

mutini

module.

I

AUDIO TELEX TX3028 Service Information

AUDIO TELEX TX3028 Service Information

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