Icom IC-M36 Service Manual - Page 22

4-5 PORT ALLOCATIONS • CPU (IC360) PIN LINE No. NAME DESCRIPTION PIN LINE No. NAME DESCRIPTION 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) 28 NDET Ambient noise level input. (from sub-microphone on the rear) 29 LOINV Lock voltage input. 30 TDETV TX power level input. (RF power detection) 31 BATTV Battery voltage input. (Divided battery voltage) 32 RSSIV RSSI input. (A/D value from IF IC) 103 PTTIN Internal PTT SW input. H=Int. [PTT] pushed. 104 BTYPE Battery distinction input. 105 BPCTRL Aquaquake drain water function contorl 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.) 115 VOL/ SQL [VOL/SQL] key input. (L=Pushed.) 116 H/L [H/L] key input. (L=Pushed.) PLL unlock signal input. (PLL malfunction 120 UNLKI detection) H=PLL unlocked. 33 NOISV Noise level input. (A/D value from IF IC) 34 PWSW [PWR] key input. (H=Pushed.) 35 EXDET External connection detect input. H=Connected. 36 WDECV Weather alart tone signal input. 38 ATIS ATIS signal input. 46- 48 COM0 LCD driver common terminals. 51- 72 SEG0SEG21 LCD driver segment terminals. • D/A CONVERTER (IC190) PIN LINE No. NAME DESCRIPTION 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. 77 LEDS Backlight control signal. 21, 22 T1CON BPF tuning voltage. 79 LCDS LCD contrast control signal. 80 MICMS MIC mute SW control signal. L=MIC mute. 84 V5VS VCO power supply line control signal. L=VCO turned ON. 85 AFVS AF power AMP control signal. H=AF Power AMP turned ON. 87 S5VS S5V line control signal. L=While being power-supplied. 88 LOW TX power control signal. 89 R5VS R5V line control signal. L=While receiving. (RX circuits activated) 90 T5VS T5V line control signal. L=While transmitting. (TX circuits activated) 97 TXMS MIC line mute signal. L=Mute. 98 DETM RX AF line mute signal. L=Mute. 99 ATTS N/C 101 PTTM Internal MIC mute signal. L=Int. MIC mute. 102 EXPTT External PTT SW input. H=Ext. [PTT] pushed. 4 - 4