Kenwood KRK-14H Service Manual page 14

5.2 Replacing Interface Unit
Interface Unit Information
Model Orginal Interface
Name Unit Number
KRK-14H XC3-0080-20
* The KRK-15B doesn't have a service interface unit. Please order normal interface unit (XC3-0090-20) listed in parts list.
Method of confirming "Orginal Interface Unit" and "Service Interface Unit"
The 0 resistor (R501) is mouted on the "SRV" silk print part of
the Service Interface unit (XC3-0080-21).
Supplied Accessories of "Service Interface Unit"
Item (Including Parts Number)
Interface Unit (XC3-008)
"Service Interface Unit" Data
The following data is written on the service unit.
Data Type
Firmware NX-5700/5800 Firmware
After Changing the PCB
After changing the printed circuit board, update Firmware following the instructions.
(1) Connection procedure
Connect the transceiver to the personal computer using the interface cable (KPG-46A/46U).
Note:
You can only program firmware from the 8-pin microphone connector on the NX-5700/5800 or KCH-19 front panel.
Using the 25-pin logic interface (D-SUB 25-pin) on the NX-5700/5800 rear panel will not work.
(2) Programming
a) Start up the KENWOOD Firmware loader (KFL).
b) Set the firmware to the KENWOOD Firmware loader (KFL).
c) Turn the transceiver power ON.
d) Check the connection between the transceiver and the personal computer.
e) Press write button in the window.
When the transceiver starts to receive data, the [LOADING] display on the LCD.
The Firmware is written to DECK (NX-5700/5800) and KRK-14H at the same time.
f) If writing ends successfully, the checksum is calculated and a result is displayed.
1-14 (No.RA021<Rev.001>)
For Service Interface
Unit Number
XC3-0080-21
XC3-008
Component side
Quantity
1
Desctiption