ICOM S-14217HZ-C1 用户手册

4 - 5

2

K2

Input port for [

Y], [Z]keys.

3

K1

Input port for [BAND], [CALL] and [V/M] keys.

4

RSSI

Input port for RSSI signal for the S-meter 
indicator from FM IF IC (IC15, pin 12).

5

VIN

Input port for volatage detection of attached 
battery pack. 

6

CTONE

Input port for WX signal.

7

RTONE

Input port for CTCSS/DTCS signal.

14

ESIO

I/O port for EEPROM (IC1) data.

15

ECK

I/O port for the EEPROM (IC1) clock.

25

POWER

Input port for [PWR] key (S6).
LOW: When the key is pushed.

26

DSTB

Outputs strobe signal to the D/A converter 
(IC13, pin 8).

28

CLS

O u t p u t s   c l o ck   s i f t   s i g n a l   t o   t h e   c l o ck 
frequency shift circuit (Q5).

29

VSTB

Outputs VOL strobe signal to the electronic 
VR (IC7, pin 14).

32

PDA

Outputs serial data to the PLL IC (IC18, pin 13), 
electronic VR (IC7, pin 16) and D/A converter 
(IC13, pin 6).

33

PSTB

Outputs PLL strobe signal to the PLL IC 
(IC18, pin14).

34

PCK

Outputs serial clock signal to the PLL IC 
(IC18, pin 12), electronic VR (IC7, pin 15) and 
D/A converter (IC13, pin 7).

35

PUL

Inputs PLL unlock signal ("PUL") from PLL IC 
(IC18, pin15).

41

LEDR

Outputs TX indicator LED (DS8; Red) control 
signal to the LED driver (Q49).
"High": While transmitting.

42

LEDG

Outputs RX indicator LED (DS8; Green) 
control signal to the LED driver (Q49).
"High": While receiving.

43

UHFC

Outputs UHF RF circuit control signal to the 
band selector (Q36).
"High": While receiving on the UHF band.

44

R3C

Outputs receive circuit control signal to R3V 
regulator (Q6).
"High": While receiving.

45

WFM

Outputs receiving mode (FM/WFM) switching 
signal to the FM/WFM switches (Q16, Q17, 
Q51, Q52).
"Low": While receiving in FM mode.

46

AM

Outputs receiving mode (AM/FM) switching 
signal to the AM demodulator switch (Q18) 
and AF switch (IC14).
"High": While receiving in AM mode.

47

NOISE

Inputs "NOISE" signal from the FM IF IC 
(IC15, pin 13).

48

DTCS

Outputs DTCS filter control signal to the 
DTCS fi lter (Q41).

49

TCON

Outputs tone fi lter control (IC5) signal to the 
CTCSS fi lter switch (Q8).

51

VHFC

Outputs VHF RF circuit control signal to the 
band selector (Q36).
"High": While receiving on the VHF band
             (76−300 MHz).

52

PCON

Outputs +3V line control signal to the +3V 
regulator (IC10).
"High": While the transceiver's power is ON.

53

+3SC

Outputs +3S line control signal to the +3S 
regulator (Q3, Q4).

54

TXC

Outputs transmit circuits control signal to T3 
regulator circuit (Q24–Q27).
"High": While transmitting.

55

BEEP

• While receiving, outputs beep sound to the 
  electric volume (IC7, pin6).
• While transmitting, outputs 1750 Hz tone signal
   to the microphone amplifi er circuit (IC8, pin 9).

56

TXU

Outputs UHF TX circuit control signal to TX 
band switch (Q27).
"High": While transmitting on UHF band.

57

TXV

Outputs VHF TX circuits control signal to TX 
band switch (Q27).
"High": While transmitting on VHF band.

58

VSHIFT

Outputs oscilating frequency shift circuit 
(VCO BOARD; Q5, D2–D4) control signal.
"High": D2–D4 are ON, and the oscillating 
             frequency is shifts down.

59

DBL2

Outputs doubler switches (VCO BOARD; 
D13, D17) control signal.
"High":While receiving 500 MHz and below.

60

DBL1

Outputs doubler switches (VCO BOARD; 
D12, D16) control signal.
"Low":While receiving 500 MHz and above.

61

ATT

Outputs attenuator control signal to the 
attenuator controller (Q40).
"High":While attenuator is activated.

63

HFC

Outputs HF RF circuit control signal to the 
HF band selector (Q35).

64

BCC

Outputs 0.5–30MHz receive circuit control 
signal to the HF band selector (Q35).

65

V3C

Outputs 430 MHz VCO control signal to the 
430 MHz VCO switch (VCO BOARD; Q3).

66

V2C

Outputs 144 MHz VCO control signal to the 
144 MHz VCO switch (VCO BOARD; Q3).

67

V1C

Outputs 50 MHz VCO control signal to the 
50 MHz VCO switch (VCO BOARD; Q4).

68

AFON

Outputs AF power amplifi er (IC9) control signal 
to the AF power amplifi er controller (Q46, Q47).
"High": While the audio is emitted.

69

LIGHT

Outputs backlight control signal to the LCD 
backlight (PA BOARD; DS1) driver (Q22).
"High": While the backlight is ON.

70

MMUTE

Outputs MIC line mute signal to the MIC 
mute switch (Q37).
"High": MIC signal is muted.

71

800C

Outputs 500

–999 MHz RF circuit control 

signal to the 800 MHz band selector (Q40).

73, 

74

DUD, 

DCK

Input ports for [DIAL].