Replacing Main Unit - Kenwood NX-5800 Service Manual

5.4

Replacing Main Unit

Main unit Information
Model Name Original Main
unit Number
NX-5800 (F,K) XC1-0391-80
NX-5800 (F2,K2) XC1-0391-81
Method of confirming "Original Main unit" and "Service
Main unit"
The 0Ω resistor (R1) is mounted on the "R1" silk print part of
the Service Main unit (XC1-0391-82/XC1-0391-83).
RTC
XC1-039 R1
1-80 (None)
1-81 (None)
1-82 0Ω
1-83 0Ω
Note:
• The 0Ω resistor (R1, R2, R3, R4) is used to differentiate
the destination with a visual check. These are not con-
nected with any PCB pattern; they are specifically for pro-
duction control. There is no need to change the mount of
these resistors.
• There is no difference between the schematic diagram of
the Service Main unit (XC1-0391-82/XC1-0391-83) and
the schematic diagram of the original Main unit (XC1-
0391-80/XC1-0391-81). (R1, R2, R3 and R4 are connect-
ed with GND (ground) only.)
Supplied Accessories of "Service Main unit"
Item (Including Parts Number)
Main Unit (XC1-039)
KENWOOD ESN/ NXDN ESN/ Product Number/
MPT ESN/ P25 ESN Label
1-74 (No.RA017<Rev.002>)
For Service Main
unit Number
XC1-0391-82
XC1-0391-83
R1
R2
R3
R4
XC1-039 A/2
Component side
R2 R3
0Ω 0Ω (None)
0Ω (None)
0Ω 0Ω (None)
0Ω (None)
Quantity
1
1
Service Main unit" Data
The following data is written on the service unit:
Data Type
Firmware
FPU Data
(PC programming mode)
Various Adjustment Data
(PC Test mode)
KENWOOD ESN
NXDN ESN/MPT ESN/
Product number/
P25 ESN
After Changing the PCB
(1) After changing the printed circuit board, write the up-to-
date Firmware following the instructions in the "2.2 RE-
ALIGNMENT - 2.2.6 Firmware Programming Mode".
• Write the Firmware in accordance to the Market. If you
write different Market Firmware, there are times com-
munication with the FPU is not possible.
(2) Using the KPG-D1/D1N, select your desired item (Model
Name and Frequency) from the Model> Product Infor-
mation menu, then use Program> Write Data to the
Transceiver to write the FPU data (PC Programming
mode). When writing to the transceiver, a Warning Mes-
sage, corresponding to the item selected, appears. Click
[OK] to continue writing the data.
(3) Enter Program> Test Mode, then adjust the various ad-
R4
justment data (PC Test Mode) as described in the "SEC-
TION 4 ADJUSTMENT".
0Ω (4) Attach the new labels corresponding to the new printed
circuit board. (Refer to the images below for label place-
ment.)
0Ω
(5) If necessary, write the FPU data used by the customer
with the KPG-D1/D1N.
Desctiption
NX-5800 Firmware.
XC1-039 (NX-5800) F, F2 type data.
General adjustment values for the
XC1-039 (NX-5800).
Model name: [XC1-039] NX-5800S1
(F: 450 ~ 520MHz) or NX-5800S2
(F2: 380 ~ 470MHz)
Type: F, F2
The same number as the KENWOOD
ESN label is written.
The same number as the NXDN ESN/
MPT ESN/Product Number/P25 ESN
label is written.