Kenwood TK-860G Service Manual

Also see for TK-860G series: Instruction manual Instruction manual Service manual supplement Service manual Service manual

20TK-860G/(N)/862G/(N)INSTALLATIONOperation when KCT-18 R134 R135is connectedEnable Enable ← KCT-18 cannotPower on/off and Horn Disable Enable be connectedAlert or AUX-A on/offHorn Alert or AUX-A Enable Disableon/offDisable Disable ← Power cannotbe turned onTable 1 R134 and R135 setup chart23413W1W2CN1CN2KCT-19Cushion(G13-1710-04)CN3CN71CN3Fig. 54. PA/HA Unit (KAP-1 : Option)4-1. Installing the KAP-1 in the TransceiverThe Horn Alert (max. 2A drive) and Public Address func-tions are enabled by inserting the KAP-1 W1 (3P; white/black/red) into CN3 on the TX-RX unit, inserting W2 (3P;green) into CN7 on the TX-RX unit, and connecting the KCT-19 (option) to CN2 and CN3 of the KAP-1.• Installation procedure1. Open the upper case of the transceiver.2. Insert the two cables ( ) with connectors from theKAP-1 switch unit into the connectors on the transceiver.3. Secure the switch unit board to the chassis with a screw( ). The notch ( ) in the board must be placed at thefront left side.4. Attach the cushion on the top of the KAP-1 switch unit.13 24-2. Modifying the Transceiver• Horn alertThe signal from pin 4 of IC9 on the TX-RX unit turns Q5and Q1 on and off and drives KAP-1 HA relay K2 to drive thehorn with a maximum of 2A.The default output is HR1. The relay open output can beobtained between HR1 and HR2 by removing R1 in the KAP-1.R1 Output formHR1 (Default) EnableHR2 DisableHR1HR1HR2R1TX-RX UNIT(A/2)ANTKCT-19CN2Q19R122R153Fig. 6 KAP-1 foil side view• Public addressThe signal from pin 13 of IC9 on the TX-RX unit drives PArelay K1 in the KAP-1 and switches the audio power ampli-fier output between the external PA system (through KCT-19) and internal and external speakers.To use the PA function, R153 on the TX-RX unit must beremoved.R153Use the PA function DisableDo not use the PA function EnableFig. 7