Port Allocations - Icom IC-M35 Service Manual

4-5 PORT ALLOCATIONS

• CPU (IC360)
PIN LINE
No. NAME
1 BEEP Beep sound (Squarewave) output.
2 PS PLL power save mode control.
3 TDEC Decoded tone signal output. (for monitor)
4 DASTB Strobe signal to D/A converter.
5 PLSTB Strobe signal to PLL IC.
6 ERXDI External serial interface. (cloning input)
7 ETXDO External serial interface. (cloning output)
10 SDATA Serial data to PLL IC and D/A converter.
11 SCLK Serial clock to PLL IC and D/A converter.
12 ESCK Serial clock for EEPROM.
13 ESDA Serial clock to/from EEPROM.
25 RESET CPU reset signal input.
27 TEMPV Thermistor input. (temparature detection)
Ambient noise level input.
28 NDET
(from sub-microphone on the rear)
29 LOINV Lock voltage input.
30 TDETV TX power level input. (RF power detection)
Battery voltage input. (Divided battery
31 BATTV
voltage)
32 RSSIV RSSI input. (A/D value from IF IC)
33 NOISV Noise level input. (A/D value from IF IC)
34 PWSW [PWR] key input. (H=Pushed.)
External connection detect input.
35 EXDET
H=Connected.
36 WDECV Weather alart tone signal input.
38 ATIS ATIS signal input.
46–
COM0 LCD driver common terminals.
48
51– SEG0-
LCD driver segment terminals.
72 SEG21
77 LEDS Backlight control signal.
79 LCDS LCD contrast control signal.
MIC mute SW control signal.
80 MICMS
L=MIC mute.
VCO power supply line control signal.
84 V5VS
L=VCO turned ON.
AF power AMP control signal.
85 AFVS
H=AF Power AMP turned ON.
S5V line control signal.
87 S5VS
L=While being power-supplied.
88 LOW TX power control signal.
R5V line control signal.
89 R5VS
L=While receiving. (RX circuits activated)
T5V line control signal.
90 T5VS
L=While transmitting. (TX circuits activated)
MIC line mute signal.
97 TXMS
L=Mute.
RX AF line mute signal.
98 DETM
L=Mute.
99 ATTS N/C
Internal MIC mute signal.
101 PTTM
L=Int. MIC mute.
External PTT SW input.
102 EXPTT
H=Ext. [PTT] pushed.
DESCRIPTION
PIN LINE
No. NAME
Internal PTT SW input.
103 PTTIN
H=Int. [PTT] pushed.
104 BTYPE Battery distinction input.
Aquaquake drain water function contorl
105 BPCTRL
signal.
106 WET Leaking detect input.
107 PON Main power supply line control signal.
108 16/9 [16/9] key input. (L=Pushed.)
109 CH/WX [CH/WX] key input. (L=Pushed.)
110 UP [UP] key input. (L=Pushed.)
111 DOWN [DWN] key input. (L=Pushed.)
112 FAV [FAV] key input. (L=Pushed.)
113 LOUD [LOUD] key input. (L=Pushed.)
114 SCAN [SCAN] key input. (L=Pushed.)
VOL/
115 [VOL/SQL] key input. (L=Pushed.)
SQL
116 H/L [H/L] key input. (L=Pushed.)
PLL unlock signal input. (PLL malfunction
120 UNLKI detection)
H=PLL unlocked.
• D/A CONVERTER (IC190)
PIN LINE
No. NAME
1, 2 FCON Rference frequency adjustment voltage.
3, 4 PCON TX output power adjustment voltage.
9, 10 MODC Deviation adjustment.
11, 12 MSENS MIC signal level (MIC sensitivity)adjustment.
13, 14 VOLO AF output level adjustment.
15, 16 SQLO Squelch threshould level adjustment.
21, 22 T1CON BPF tuning voltage.
4 - 4
DESCRIPTION
DESCRIPTION