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NX-800/800H
43
TROUBLE SHOOTING
Replacing TX-RX Unit
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TX-RX Unit Information
Model Name
Original
TX-RX Unit Number
For Service
TX-RX Unit Number
NX-800 (K) X57-7390-10 X57-7390-11
NX-800H (K) X57-7390-12 X57-7390-13
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Method of confi rming “Original TX-RX unit” and
“Service TX-RX Unit”
X57-739 A/2
Component side
Silk print
Check box
The corresponding
TX-RX unit is checked.
CN595
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Supplied Accessories of “Service TX-RX Unit”
Item (Including Parts Number) Quantity
TX-RX Unit 1
Kenwood ESN Label 1
NXDN ESN Label 1
Product Number Label 1
Addendum (B59-2533-XX) 1
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“Service TX-RX Unit” Data
The following data is written on the service unit:
• Firmware
• FPU Data
• Various Adjustment Data
• Kenwood ESN (“S” is given after the model name.)
• NXDN ESN / Product number
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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”.
2. Using the KPG-111D, select your desired item (Model
Name and Frequency) from the Model> Product Informa-
tion menu, then use Program> Write to the Transceiver
to write the FPU data (PC Programming mode).
3. Enter Program> Test Mode, then adjust the various ad-
justment data (PC Test Mode) as described in the “AD-
JUSTMENT”.
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-111D.
Note:
• When using the ESN Validation function of NXDN Trunk-
ing, the NXDN ESN number changes when the circuit
board is changed (the number is written on the circuit
board); the NXDN Trunking System cannot be accessed.
Use the KPG-110SM on the NXDN Trunking System side
to reprogram the NXDN ESN number.
• When a new printed circuit board is used, the Kenwood
ESN changes, as does the Transceiver information dis-
play of the KPG-111D, but this does not have any effect
on the operation of the transceiver.
• If changing to the original Kenwood ESN and NXDN ESN,
please contact our service center.
Product Number
Label (16 digits)
NXDN ESN
Label (12 digits)
Kenwood ESN lable
Cut-off Line
NX-800/800H
Note: A UPC code and UPC barcode is not printed on the
Kenwood ESN Label. If necessary, cut the label at the cut-
off line and attach only the serial number.