Kenwood NX-300 Service Manual

Also see for NEXEDGE NX-300: Brochure Instruction manual Instruction manual Instruction manual Instruction manual

NX-300(G)52ADJUSTMENT■ Universal connectorUse the interface cable (KPG-36A/36U) for PC tuning orthe lead wire with plug (E30-3287-28) and screw (N08-0535-08) for panel tuning. Connect the plug to the universal con-nector of the transceiver and tighten the screw.The lead wire with plug (E30-3287-28) and screw (N08-0535-08) terminals are as follows. Numbers are universalconnector terminal numbers.Caution1. When connecting the plug to the universal connector ofthe transceiver, a short circuit may occur. To prevent this,be sure to turn the transceiver POWER switch off.2. Since the RX AF output is a BTL output, there is a DCcomponent. Isolate this with a capacitor or transformer asshown in the figure.3. Do not connect an instrument between red or black andGND.• Universal connector1 : SSW3 : SP–5 : EMC7 : PTT9 : OPT11 : 5V13 : RXD2 : SP+4 : MSW6 : ME8 : PF10 : E12 : TXD14 : NC• Panel tuning11 : GREEN (5M)TUBESCREW8 : YELLOW (PF SW)2 : RED (RX AF OUTPUT)3 : BLACK (RX AF OUTPUT)10 : BROWN (GND)6 : BROWN (MIC GND)5 : WHITE (MIC INPUT)7 : BLUE (PTT SW) GND → ONRED (2)BLK (3)100m 10V100m 10V8ΩWHT(5)BRN (6)BLU (7)BRN (10)PTT SW+++To transceiverAF VoltmeterAudio generator10m 10VNote: Pin 1 (SSW) and Pin 4 (MSW) are connected to Pin10 (GND) to active External SP and External MIC.• PC tuningConnect the wires to the PCB in the connector case ofinterface cable.For output the wires out of the connector case, need toprocess the connector case.Connector caseKPG-36A/36URemove thescrewPCB layoutShieldAF voltmeterAudio generator100m 10V100m 10V10m 10V+++8Ω