Kenwood NX-5300 Service Manual page 76

Antenna connector adapter
The antenna connector of this transceiver uses an SMA terminal.
Use an antenna connector adapter [SMA(f) - BNC(f) or SMA(f) - N(f)] for adjustment. (The adapter is not provided as an option, so
buy a commercially-available one.)
Nut wrench
In order to turn the volume nut and the channel selector nut, use a recommendation tool.
KENWOOD part No.: W05-1123-00
Battery Jig (W3F-0001-00)
Connect the power cable properly between the battery jig installed in the transceiver and the power supply, and be sure output
voltage and the power supply polarity prior to switching the power supply ON, otherwise over voltage and reverse connection may
damage the transceiver, or the power supply or both.
Note:
*When using the battery jig, you must measure the voltage at the terminals of the battery jig. Otherwise, a slight voltage drop
may occur within the power cable, between the power supply and the battery jig, especially while the transceiver transmits.
Universal connector
Use the interface cable (KPG-36U/36X) for PC tuning or the
lead wire with plug (E30-3287-28) and screw (N08-0535-08)
for panel tuning. Connect the plug to the universal connector
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 universal connector
terminal numbers.
Caution
(1) When connecting the plug to the universal connector
of the 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 DC
component. Isolate this with a capacitor or transformer
as shown in the figure.
(3) Do not connect an instrument between red or black
and GND.
 *Universal connector
1 : SSW
3 : SP-
5 : EMC
7 : PTT
9 : OPT
11 : 5V
13 : RXD
1-76 (No.RA015<Rev.002>)
Schematic diagram
+
D
+
S
-
2 : SP+
4 : MSW
6 : ME
8 : PF
10 : E
12 : TXD
14 : SMIC
+ Terminal
(Red)
Power
Power cable
supply
- Terminal
(Black)
 *Panel tuning
SCREW
TUBE
BLU (7)
To transceiver
BRN (10)
RED (2)
BLK (3)
Note: Pin 1 (SSW) and Pin 4 (MSW) are connected to Pin
10 (GND) to active External SP and External MIC.
2 : RED (RX AF OUTPUT)
3 : BLACK (RX AF OUTPUT)
5 : WHITE (MIC INPUT)
6 : BROWN (MIC GND)
7 : BLUE (PTT SW) GND ON
8 : YELLOW (PF SW)
10 : BROWN (GND)
11 : GREEN (5M)
PTT SW
100 10V
+
AF Voltmeter
8
+
100 10V
WHT
+
(5)
10 10V
Audio generator
BRN (6)