Kenwood NX-3720HG Service Manual page 9

2.2.5 PC Mode
2.2.5.1 Preface
The transceiver is programmed by using a personal computer,
programming interface (KPG-46U/46X) and FPU (programming
software).
The programming software can be used with a PC. Figure 1
shows the setup of a PC for programming.
FPU
PC
USB
Transceiver
2.2.5.2 Connection procedure
(1) Connects the transceiver to the computer using the
interface cable (KPG-46U/46X).
Note:
You must install the KPG-46U/46X driver in the
computer to use the USB programming interface cable
(KPG-46U/46X).
(2) When the POWER switch on, user mode can be entered
immediately. When PC sends command the transceiver
enter PC mode, and "PROGRAM" is displayed on the LCD.
When data transmitting from the transceiver, the red LED
lights.
When data receiving to the transceiver, the green LED
lights.
Note:
The data stored in the computer must match the "Model
Name" when it is written into the flash memory.
2.2.5.3 KPG-46U/46X description (USB programming
interface cable: Option)
The KPG-46U/46X is a cable which connects to a USB port on a
computer.
When using the KPG-46U/46X, install the supplied CD (with
driver software) in the computer. The KPG-46U driver runs under
Windows 7, 8.1, 10.
The KPG-46X driver runs under Windows 7, 8.1, 10.
The latest version of the USB driver is available for download
from the following URL:
http://www.kenwood.com/usb-com/
(This URL may change without notice.)
PC
KPG-46U/46X
+ Tuning cable
(E30-7754-05)
KPG-46U/46X
Fig.1
2.2.5.4 Programming software KPG-D3/D3N description
The FPU is the programming software for the transceiver
supplied on a CD. This software runs under Windows 7, 8.1, 10.
The data can be input to or read from the transceiver and edited
on the screen.
Note:
KPG-D3N can't be used for E type.
2.2.6 Firmware Programming Mode
2.2.6.1 Preface
Flash memory is mounted on the transceiver. This allows the
transceiver to be upgrade when new features are released in the
future. (For details on how to obtain the firmware, contact
Customer Service.)
2.2.6.2 Connection procedure
Connect the transceiver to the personal computer using the
programming interface (KPG-46U/46X). (Connection is same as
in the PC mode.)
2.2.6.3 Programming
(1) Start up the firmware programming software (KENWOOD
Firmware Loader). The KFL.exe exists in the KPG-D3/D3N
installed folder.
(2) Set the baud rate to "auto" or 1152000, 576000, 115200,
and 57600.
(3) Set the firmware to be upgrade by file name item.
(4) Enter the Firmware programming mode by using section
"2.2.2 How to Enter Each Mode". Then, the yellow LED on
the transceiver light and "FIRMWARE PROG" is displayed.
(5) Check the connection between the transceiver and the
personal computer, and make sure that the transceiver is
in the Program mode.
(6) Press "Write" button in the window. When the transceiver
starts to receive data, the "LOADING" display lights.
(7) If writing ends successfully, the checksum is calculated
and a result is displayed.
(8) If you want to continue programming other transceivers,
repeat step (4) to (7).
Note:
If write is perfomed by KFL, Firmware programming
mode will start automatically even if Firmware
programming is set to disable in the programming
software.
2.2.6.4 Function
If you press the [ (AUX)] button while "FIRMWARE PROG" is
displayed, the checksum is calculated, and a result is displayed.
If you press the [ (AUX)] button again while checksum is
displayed, "FIRMWARE PROG" is redisplayed.
(No.RA054<Rev.001>)1-9