Kenwood TK-7180H Service Manual

Also see for TK-7180(H): Brochure & specs Specification Instruction manual Brochure & specs Instruction manual

Contents

TK-7180H/7182H71Name DescriptionAUDIH MIC mute signal input. L : Mute(AUDIO INHIB)OPT2 Emergency signal input. Active low.(AUX I/O) L≤1.0V, H≥ : 4.0V, Input voltage 0V~5.0VSTON Side tone input. 1kHz, 5Vp-p(SIDE TONE)to Scrambler boardGND (GND) GroundTXD1 PTT signal output. L : TX, H : Not TX(PTT) L≤0.45V, H≥4.7V/25kΩ load(PTT signal input) Active low.L≤1.0V, H≥4.0V, Input voltage : 0V~5.0VOPT1 (CODE Scramble code signal output 1.SELECT1) L≤0.45V, H≥4.7V/25kΩ loadOPT3 (CODE Scramble code signal output 2.SELECT2) L≤0.45V, H≥4.7V/25kΩ loadOPT4 Echo PTT signal output. L : TX, H : Not TX(ECHO PTT) L≤0.45V, H≥4.7V/25kΩ loadOPT5 (CODE Scramble code signal output 4.SELECT8) L≤0.45V, H≥4.7V/25kΩ loadTXO MIC signal output (AC coupled) before(TX OUT) pre-emphasis. Zo>2.2kΩ, 130± 50mVp-p typ.(Standard modulation)Name DescriptionOPT2 Scrambler control signal output.(SCRAMBLE) L : ON, H : OFF. L≤0.45V, H≥4.7V/25kΩ loadRXEO Audio signal output (DC coupled) after(RX OUT) de-emphasis. Zo>30kΩ, 1± 0.3Vp-p typ.(Standard modulation)TXI MIC signal input (AC coupled) before(TX IN) pre-emphasis. Zin>2.2kΩ, 130± 50mVp-p typ.(Standard modulation)RXEI Audio signal input (DC coupled) after(RX IN) de-emphasis. Zin>15kΩ, 1± 0.3Vp-p typ.(Standard modulation)OPT6 (CODE Scramble code signal output 3.SELECT4) L≤0.45V, H≥4.7V/25kΩ load8C (+V) 8V AVR output. 8.0V typ, 100mA max.to GPS receiverGND (GND) GroundRXD1*1 Data output(DATA OUT1)RXD2*1 Data output(DATA OUT1)5E (+5V) 5V*1 : Depending on the connected optional accessory, the DATAOUT1 may connect to either RXD1 or RXD2.TERMINAL FUNCTION