Icom ic-f3062t Service Manual

Also see for IC-F3061S: Adjustment Servise manual Instruction manual Service manual Instruction manual

Contents

Icom ic-f3062t Service Manual Manual pdf 12 page image

5-5 PORT ALLOCATIONS5-5-1 CPU (MAIN UNIT; IC18)PinNo.PortName Description1 DSDA Outputs serial data to the D/A converter (IC20, pin 6).2 DAST Outputs strobe signal to the D/A converter (IC4, pin 6).3 SIDE3 Input port for [Side3] key (S4)."Low"=When the key is pushed.4−7 CBI0−3 Input ports for [ROTARY SELECTOR] (VR UNIT; S701).10 SSO Outputs serial data to the PLL IC (IC1, pin 15), D/Aconverter (IC4, pin 8).11 SCK Outputs serial crock signal to the PLL IC (IC1, pin14), D/A converter (IC4, pin 8).13 PLST Outputs PLL strobe signal to the PLL IC (RF UNIT;IC1, pin 16).15 DASW Outputs mode (Digital/Analog) switching signal tothe D/A converter (IC14, pins 10, 11).17 TMUT Outputs transmit mute signal to the transmit muteswitch (RF UNIT; Q606).18 NWC2 Outputs Narrow/Wide mode switching signal to thebandwidth switches (Q26, D32, D33).19 NWC1 Outputs Narrow/Wide mode switching signal to thebandwidth switches (Q27, Q41, Q42, D34, D35).20 DDSD Outputs serial data to the DTMF decode IC (IC10,pin 9).21 DDAC Outputs serial clock signal to the DTMF decode IC(IC10, pin 11).26 T5COutputs T5V line control signal to the T5V regulator(Q15)."Low"= While transmitting.27 R5COutput R5V line control signal to the R5V regulator(Q16)."Low"= While receiving.28 S5COutput S5V line control signal to the S5V regulator(Q14)."Low"=While power save mode.29 PTTSW Input port for [PTT] switch (S3)."Low"=When the switch is pushed.30 SIDE2 Input port for [Side2] key (S5)."Low"=When the key is pushed.32 RMUT Outputs mute signal to the AF mute switch (D42).37 NOIS Input port for the noise level from the FM IF IC (IC3,pin 13).38 POSW Input port for power switch (VR UNIT; R702) frompower controller (D36).39 DDST Outputs strobe signal to the DTMF decode IC (MAINUNIT; IC10, pin 14).40 MTCK Outputs serial clock signal to the base band IC(MAIN UNIT; IC5, pin 9).41 PWONOutputs VCC line control signal to the power switch(Q30, Q31)."Low"=While the power is ON.43 SENC Outputs single tone encode signal to the LPF (IC17,pin 10).44 BEEP Outputs beep sound to the AF circuits (IC4, pin 13).45 SDEC Input port for decoded 2/5 tone and DTMF signals.46 CDEC Input port for decoded CTCSS/DTCS signal.47 ISENS Input port for power amplifier current detect signalfrom the current detector (RF UNIT; Q604, Q605).48 BATV Input port for remaining battery power.49 LVIN Input port for VCO lock voltage.50 RSSI Input port for RSSI signal from the FM IF IC (IC3,pin 12).55 EMER Input port for [Emer] switch (VR UNIT; S702).PinNo.PortName Description70 CSFT Outputs CPU clock frequency shift signal to the CPUclock oscillator (X2, D38).71 DUSE Outputs CTCSS/DTCS select signal to the CTCSS/DTCS switch (Q34).73 UNLK Input port for PLL unlock detect signal from the PLLIC (IC1, pin 11).74 RLED Outputs RX indicator (VR UNIT; DS701) controlsignal to the LED driver (VR UNIT; Q701).75 TLED Outputs TX indicator (VR UNIT; DS701) controlsignal to the LED driver (VR UNIT; Q701).78 FSDA Outputs serial data to the expand IC (FRONT UNIT;IC505, pin 3).79 FSCL Outputs serial clock signal to the expand IC (FRONTUNIT; IC505, pin 3).81 CIRQ Input port for external connection detect signal fromJ1 and J2.88 SIDE1 Input port for [Side1] key (S6)."Low"=When the key is pushed.89−91CENC0−2 Output CTCSS/DTCS signals to the LPF (IC17, pin 3).92 EMPH Outputs emphasis characteristic change signal tothe D/A converter (IC13, pins 9, 10).93 MTDT Outputs serial data to the base band IC (IC5, pin 10).96 MSCK Outputs serial clock signal to the base band IC(MAIN UNIT; IC5, pin 13).97 PMFM Outputs modulation mode switching signal to thePM/FM switch (IC13, pin 11) .98 ESDA Outputs serial data to the EEPROM (IC19, pin 5).99 ESCL Outputs serial clock signal to the EEPROM (IC19,pin 6).100 RESL Input port for reset signal from the reset IC (IC8, pin 1).5-5-2 D/A CONVERTER (MAIN UNIT; IC20)PinNo.PortName Description1 T1 Outputs BPF tuning voltage to the tunable BPF (D23,D24, L31, L32, C120−C122, C125−C127).2 T2• While receivingOutputs BPF tuning voltage to the tunable BPF(D28, D29, L33, L34, C140−C144, C147).• While transmittingOutputs TX power setting voltage to the APCamplifi er (RF UNIT; IC601).3 TXLVA Outputs oscillation frequency adjust voltage to theTX VCO ( Q3, D10−D12).4 RXLVA Outputs oscillation frequency adjust voltage to theRX VCO1/2 ( Q1, D1−D4/Q2, D5−D8).5-5-3 EXPAND IC (FRONT UNIT; IC505)PinNo.PortName Description4 AFONOutputs AF power amplifier (Q508, Q509) controlsignal to the AF power amplifi er controller (Q501,Q502, D508).5 LIGH Outputs backlight control signal to the backlightdriver (Q507−Q509).6 SPCON Outputs internal/external speaker select signal tothe SP/ESP switch (Q512, Q513).7 MCON Outputs internal/external microphone select signalto the microphone controller (Q505, D504).5 - 5