Kenwood TK-7100H Service Manual

Also see for TK-7100H: Specifications Service manual

Contents

13 Internal Connector467 0 1 1 08 1 1 1 09 0 0 0 110 1 0 0 111 0 1 0 112 1 1 0 113 0 0 1 114 1 0 1 115 0 1 1 116 1 1 1 10 = Low Level, 1 = High Level13.2.21 Scrambler (Output)You may assign this output terminal to one of Port 1 ~Port 8.This terminal becomes a Low logic level when theScrambler function is “On” on that channel.13.2.22 Reset (Output)This output terminal allows you to reset theSmarTrunk ST-865KW4. This function may only beused with the SmarTrunk board.13.2.23 Ignition SenseThis terminal allows you to select whether or not touse the Ignition Sense function.The transceiver turns ON/OFF corresponding to theconnected vehicle’s status when IGN (CN3 - Pin1) isconnected to the ignition line of the vehicle using theConnection Cable (KCT-31) and the Ignition Sensefunction is enabled.Refer to Section “19 Ignition Sense” for details.13.3 Fixed Port FunctionDescriptionThis section details other transceiver ports other thanthe Function Port.13.3.1 SB (CN2 - Pin1)This output terminal provides a source for batteryvoltage.13.3.2 GND (CN2 - Pin3)This terminal is the ground for external devices.13.3.3 IGN (CN3 - Pin1)This output terminal works with the Ignition.Refer to Section “19 Ignition Sense” for details.The KCT-39 has this terminal. However, this terminalis not used in the KDS-100 and KGP-2A/2B.Note: This terminal does not work with the Power until R71on the board is removed. Without removing R71, 90%of the battery is output when applying the 39k, as theinternal resistance is approximately 4.7k.13.3.4 DATAI (CN3 - Pin2)This is the input terminal for external signallingdevices.The signal is transmitted from this terminal withoutpassing through the Pre-Emphasis circuit. The inputlevel must not be excessive since the modulationcontrol is bypassed.The KCT-39, KDS-100, KGP-2A/2B, and SmarTrunkBoard use this terminal.13.3.5 DETO (CN3 - Pin3)This is the output terminal for external signallingdevices.This terminal outputs the demodulated signal beforeit passes through the De-Emphasis circuit.The KCT-39 has this terminal. You can also use thisterminal in the KDS-100 and KGP-2A/2B.13.3.6 TXAFI (CN3 - Pin4)This input terminal may be used for the scrambler’stransmit audio.You must remove R202 and connect it to the TXAFOterminal.Refer to Section “18 Scrambler” for details.13.3.7 TXAFO (CN3 - Pin5)This output terminal may be used for the scrambler’stransmit audio.You must remove R202 and connect it to the TXAFIterminal.This terminal outputs the signal before it passesthrough the Pre-Emphasis circuit.You must use AC coupling for connection to thisterminal.Refer to Section “18 Scrambler” for details.