Codan Radio Communications VT-3-150-SN User Manual

DWG No:

TXADPROAS

TITLE:

MT-3 Tx Audio Processor

DATE:

19 April, 1996

BOARD No.:

43-911916

REV DATE:          22 August, 1996 

43-911916

DWG No:     TX ADPROAS

TITLE:      MT-3 Tx Audio Processor

DWG No:

TXADPROAS1A

TITLE:

MT-3 Tx Audio Processor SM Layout

INSTALL JUMPERS

U1

SL6270

R2

5k POT

MICROPHONE 

INPUT LEVEL 

CONTROL

R8

100k POT

MICROPHONE 

COMPRESSION

CONTROL

U2

SL6270

R31

5k POT

BALANCE 

INPUT LEVEL 

CONTROL

R38

100k POT

BALANCED 

COMPRESSION 

CONTROL

FB1

Ferrite Bead

U5

MC33174

U3

MC33172

R42

5k POT

SUBTONE 

INPUT 1  

CONTROL 

LEVEL

R29

50k POT

DEVIATION 

CONTROL

U4

MC33172

R75

50k POT

DC LEVEL 

ADJUST

R44

5k POT

SUBTONE 

INPUT 2 

CONTROL 

LEVEL

U8

MC33172

C55

4.7µF

U10

TC4S66F

Q2

TC4S66F

C56

4.7µF

R48

100K POT

AUXILIARY 

INPUT LEVEL 

CONTROL

R14

50k POT

SYMMETRY 

ADJUST

R82

27k4

C7

10nF

R6

1k00

C10

2.2µF

R5

1k00

C11

150pF

R35

1k00

 JU3 

C4

100nF

R1

604R

R7

20k0

R3

6k81

C6

10nF

R83
27k4

R36

1k00

R37

20k0

C33

6.8µF

R4

221k

R34

221k

C5

10nF

JU4

C34

150pF

JU5

R33

1k50

C30

4.7µF

JU11

C28

100nF

R32

1k5

R18

1k

R20

1k82

R85

39k2

JU24

R84

39k2

R23

5k11

R24

5k11

R25

3k48

R26

3k48

R86

22k1

R87

22k1

C29

4.7µF

JU25

JU26

R9

221k

C13

10pF

R12

11k8

C15

10nF

R11

49k9

R10

49k9

C14

100nF

C36

10pF

C54

4.7µF

C20

100nF

R21

49k9

R22

49k9

C53

10nF

R17

4k53

R89

100k

R28

13k3

R27

13k3

R30

681R

C3

4.7µF

R39

221k

R88

100k

JU2

JU23

JU12

JU13

R15

49k9

C17

10nF

R80

68k1

R13

49k9

R51

1k50

JU6

R50

221k

R49

27k4

R41

11k8

R52

11k8

JU29

JU14

JU10

JU9

JU15

C19

150pF

JU27

JU36

JU16

JU7

R16

100k

R47

4k53

JU39

C49

10nF

C52

4.7µF

C18

100nF

R43

11k8

JU1

R74

27k4

C50

4.7µF

JU38

JU30

JU35

JU34

JU28

C51

100nF

R79

49k9

R77

20k0

R78

49K9

JU37

R45

39k2

JU31

JU8

JU33

JU32

R73

221k

R72

39k2

C58

150pF

R61

221k

R71

63k4

R46

4k53

R40

1k50

Y

X

X

Y

X

Y

Y

X

X

Y

X

Y

Y

X

X

Y

Y

X

BC817-25

U9

DWG No:

TXADPROAS3B

TITLE:

MT-3 Tx Audio Processor SM Value / Designation                

C8

47µF

C31

47µF

JU18

JU19

Y

X

R90

10k

JU17

REV DATE:        30 October 1996 

P5-1

P7-1

P6-1

P8-1

C9

100nF

C12

680nF

C32

4.7nF

C22

10nF

C21

10nF

C24

10nF

C26

1nF

C25

15nF

C23

22nF

R81

10k 

THERM.

C16

4.7nF

C37

4.7nF

C43

4.7nF

C41

150nF

C38

330nF

C44

330nF

C48

1µF

C39

330nF

C27

33nF

C57

1µF

C40

1µF

C47

1µF

P1

P2

P4

P3

1

2

3

4

1

2

3

4

1

2

3

4

1

2

3

4

1

2

3

4

1

2

3

4

1

2

3

4

1

2

3

4

TITLE:

MT-3 TX Audio Processor T/H Layout (Standard Version)

DWG REV DATE:

DWG No:

VUAP3AT1D       

P1

P2

P4

P3

C35

330nF

DWG REV DATE:

2 September 1997

R19

MT-3 Transmitter Instruction Manual

MT-3 Audio Processor  Electrical Assembly- PCB No. 43-911916

Figure 5-9

MT-3 Audio Processor Component Layout

5-8

 Low Frequency Modulation Configuration 

Desig

Low Freq.

JU27X
JU27Y

JU31

JU35X

Not Installed
Not Installed
Not Installed
Not Installed

JU35Y

JU37

JU38X

JU38Y

Installed

Not Installed
Not Installed

Installed

Desig

Low Freq.

NOTE: For Low Frequency Modulation
short pins P4-1 and P4-3 together.

MT3APM1A