Alinco DJ-195, Service Manual

7

No.

Pin Name       Function  I/O PU

Logic

Description

1

P67/AN7

SMT

I

-

A/D

S-meter input

2

P66/AN6

SQL

I

-

A/D

Noise level input for squelch

3

P65/AN5

BAT

I

-

A/D

Low battery detection input

4

P64/AN4

TIN

I

-

A/D

CTCSS tone input/DSC code input

5 P63/SCLK22/AN3

BP1

I

-

A/D

Band plan 1

6 P62/SCLK21/AN2

BP2

I

-

A/D

Band plan 2

7

P61/SOUT2/AN1

DCSW

O

-

Activ high

DCS signal mute

8

P60/SIN2/AN0

F/M/KEY

I

-

A/D

Function/Moniter key input

9

P57/ADT/DA2

CTOUT

O

-

D/A

CTCSS  tone output/DCS tone output/Tuning voltage out

10

P56/DA1

DTOUT

O

-

D/A

DTMF output/EVR control output

11

P55/CNTR1

SCL

O

-

Pulse

Serial clock for EEPROM

12

P54/CNTR0

TBST

I/O

Pulse/Activ low Tone burst output/UP input while trunking

13

P53/RTP1

BP4

I

-

   -

     Band plan 4

14

P52/RTP0

MUTE

I/O

-

Activ high

Microphone mute/Bank change input while trunking

15

P51/PWM3

CLK

O

-

Pulse

Serial clock output for PLL,CTCSS,and trunking board

16

P50/PWM0

DATA

I/O

-

Pulse

Serial data output for PLL,CTCSS, and trunking board/PLL unlock signal input

17

P47/SROY1

STBT

I/O

-

Activ low/Pulse

Trunking board detedtion(when PSW  is on)/Storobe signal to trunking board

18

P46/SCLK1

STBP

O

-

Pulse

Strobe for PLL IC

19

P45/TXD

UTX

O

-

Pulse

UART data transmission output

20

P44/RXD

RTX

I

-

Pulse

UART data reception output

21

P43/

/TOUT

BEEP

I/O

-

Pulse/Activ low Beep tone/Band plan 3(when PSW is on)

22

P42I/NT2

RE2

I

Avtiv low

23

P41/INT1

RE1

I

Avtiv low

Rotary encoder input

24

P40

SD

O

-

Avtiv low

Signal detection output

25

P77

PTT

I

-

Activ high

PTT input

26

P76

SDT

I

Activ high

Trunking signal detection input

27

P75

P5C

O

-

Activ low

PLL power ON/OFF output

28

P74

T5C

O

-

Activ low

TX power ON/OFF output

29

P73

R5C

O

-

Activ low

RX power ON/OFF output

30

P72

AFP

O

-

Activ low

AF AMP power ON/OFF output

31

P71

CLSFT

O

-

Activ high

CLOCK frequency shift

32

P70/INTO

BU

I

-

Activ low

Backup signal detection input

33

RESET

RESET

I

-

Activ low

Reset input

34

Xcin

Xcin

-

-

-

-

35

Xcout

Xcout

-

-

-

-

36

Xin

Xin

-

-

-

Main clock input

37

Xout

Xout

-

-

-

Main clock output

38

Vss

GND

-

-

-

CPU GND

39

P27

PSW

I

-

Avtiv low

Power switch input

40

P26

SDA

O

-

Pulse

Serial data for EEPROM

41

P25

C5C

O

-

Activ high

C5V power ON/OFF output

42

P24

LAMP

O

-

Activ high

Lamp ON/OFF

43

P23

KI0

I

Avtiv low

44

P22

KI1

I

Avtiv low

45

P21

KI2

I

Avtiv low

46

P20

KI3

I

Avtiv low

Key matrix input

47

P17

KO3

O

-

Avtiv low

48

P16

KO2

O

-

Avtiv low

49

P15/SEG39

KO1

O

-

Avtiv low

50

P14/SEG38

KO0

O

-

Avtiv low

Key matrix output

51

P13/SEG37

H/L

O

-

-

Tx power H/L

52

P12/SEG36

DA2

O

-

-

DA converter for output power

53

P11/SEG35

DA1

O

-

-

DA converter for output power

54

P10/SEG34

DA0

O

-

-

DA converter for output power

55

P07/SEG33

SCR

I

-

SCR input