Nokia 7250, 7250i Service Manual
CCS Technical Documentation
General Information
Company confidential
NHL-4J/
Issue 2 06/03
Nokia Corporation.
Page 3
NHL-4J/NHL-4JX Product Selection
The
NHL-4J/NHL-4JX (Nokia 7250/7250i) is a Triple Band transceiver unit designed
for the EGSM900 (including GSM), GSM1800 and GSM1900 networks. It is both
EGSM900 phase 2 power class 4 transceiver (2W) and GSM1800 / GSM1900 power class
1 (1W) transceiver.
EGSM900 phase 2 power class 4 transceiver (2W) and GSM1800 / GSM1900 power class
1 (1W) transceiver.
NHL-4J/NHL-4JX Product and modules
Figure 1: NHL-4J/NHL-4JX transceiver
Name
Type code
Material code/
module type
Module code
Basic transceiver Nokia 7250/
7250i
7250i
NHL-4J/NHL-
4JX
4JX
0508084
Radio module
TB3
0201921
UI board
TK8
0201920
Mechanics assembly parts
0262909
Software module ( basic SW )
On Flash memory