(No.RA073<Rev.001>)1-73
5.5
Operating Method of Enforced Firmware Overwriting Mode
Enforced firmware overwriting mode is a mode to forcibly overwrite the transceiver firmware when the operations as instructed in
Section 2.2.2 "How to Enter Each Mode" does not allow the transceiver to enter the firmware programming mode, for instance, when
the transceiver fails to start up due to the transceiver failure.
(1) Prepare the followings:
• Transceiver (NX-5700HB)
• Control Head (KCH-19, KCH-20R or KCH-21R)
• Remote control cable (KCT-71 or KCT-77)
• Regulated DC power supply
• Programming interface cable (KPG-46U or KPG-46X)
• Power cable
(2) Remove the M.CABINET, RUBBER SEAL and SHIELDING COVER of the transceiver.
Connect a transceiver, Control Head, Remote control cable, regulated DC power supply, programming interface cable (KPG-
46U or KPG-46X) and power cable.
(3) While FLDM terminal has a short-circuit with GND terminal on the PCB, turn the DC Power supply output ON.
(4) Upon startup of FLDM loader, "FIRMWARE PROG" appears on an LCD screen.
(5) Start KFL up, select the desired firmware you wish to overwrite, select the COM port number and baud rate, and then click the
"Write" key.
Note:
Configuring "Auto" for baud rate automatically apply the maximal speed of baud rate allowed for a programming cable
connected to the selected COM port number.
Upon start of overwriting on the transceiver, "LOADING" appears on an LCD screen.
(6) Upon completion of the firmware overwriting, "CHECKSUM xxxx" appears on an LCD screen.
MAIN unit
Summary of Contents for NX-5700HB
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