Kenwood NX-3400 Service Manual page 38

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.
Part No.: W05-1123-00
Battery Jig (W05-0909-00)
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.
When using the battery jig in user mode, the transceiver
assumes that a lithium-ion battery pack is attached to the
transceiver. In adjustment mode, battery type detection is not
performed.
Universal connector
Use the interface cable (KPG-36U/36X) for PC tuning for panel
tuning. Connect the plug to the universal connector of the
transceiver and tighten the screw.
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
1-38 (No.RA070<Rev.001>)
2 : SP+
4 : MSW
6 : ME
8 : PF
10 : E
12 : TXD
14 : SMIC
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.
Schematic diagram
S
–
+
 *Panel tuning
SCREW
TUBE
BLU (7)
T o 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.
+ Terminal (Red)
– Terminal (Black)
–Terminal
(Black)
Power Power
cable supply
+
+Terminal
(Red)
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
8ohm
+
100 10V
WHT
+
(5)
10 10V
Audio generator
BRN (6)