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NX-220
X57-804
0-10
0-11
Note:
• The 0Ω resistor (R4) is used to differentiate the destina-
tion with a visual check. These are not connected with
any PCB pattern; they are specifi cally for production con-
trol. There is no need to change the mount of the resistor.
• There is no difference between the schematic diagram of
the Service TX-RX unit (X57-8040-11) and the schematic
diagram of the original TX-RX unit (X57-8040-10). (R4 is
connected with GND (ground) only.)
■ Supplied Accessories of "Service TX-RX unit"
Item (Including Parts Number)
TX-RX Unit (X57-804)
Kenwood ESN Label
NXDN ESN Label
MPT ESN Label
Addendum (B59-2655-XX)
■ "Service TX-RX unit" Data
The following data is written on the service TX-RX unit:
Data Type
Firmware
FPU Data
(PC programming mode)
Various Adjustment Data
(PC Test mode)
Kenwood ESN
NXDN ESN/MPT ESN
■ After Changing the PCB
1. After changing the printed circuit board, write the up-
to-date Firmware following the instructions in the "RE-
ALIGNMENT - 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-141D, select your desired item (Model
Name and Frequency) from the Model> Product Informa-
tion menu, then use Program> Write Data to the Trans-
ceiver to write the FPU data (PC Programming mode).
When writing to the transceiver, a Warning Message,
corresponding to the item selected, appears. Click [OK] to
continue writing the data.
3. Enter Program> Test Mode, then adjust the various ad-
justment data (PC Test Mode) as described in the "AD-
JUSTMENT".
34
TROUBLE SHOOTING
R4
(None)
0Ω
Quantity
1
1
1
1
1
Description
NX-220 K type Firmware.
X57-804 (NX-220) Kx type data.
General adjustment values for the
X57-804 (NX-220).
Model name: NX-220S
Type: Kx
The same number as the Kenwood
ESN label is written.
The same number as the NXDN ESN/
MPT ESN label is written.
4. Attach the new labels corresponding to the new printed
circuit board. (Refer to the images below for label place-
ment.)
5. If necessary, write the FPU data used by the customer
with the KPG-141D.
Note:
• When using the ESN Validation function of Trunking, the
ESN number changes when the circuit board is changed
(the number is written on the circuit board); the Trunking
System cannot be accessed. Maintain the ESN data of
the Trunking System following the new ESN.
• When a new printed circuit board is used, the Kenwood
ESN changes, as does the Transceiver Information display
of the KPG-141D, but this does not have any effect on
the operation of the transceiver.
• If changing to the original ESN, please contact our service
center.
■ ESN Label Layout
(Not used)
NXDN ESN Label (Bar code)
Kenwood ESN Label
NXDN ESN Label (Number)
MPT ESN Label (Number)
NXDN ESN Label (Bar code)
NXDN ESN Label (12 digits)
MPT ESN Label (10 digits)
Note:
A UPC code and UPC barcode is not printed on the Ken-
wood ESN Label. If necessary, cut the label at the cut-off
line and attach only the serial number.
Kenwood ESN Label
Cut line
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