Nokia 7250, 7250i Instruction De Maintenance
NHL-4J/NHL-4JX
CCS Technical Documentation
Page 38
Copyright Nokia. All rights reserved.
Issue 2 06/03
Service Tool Concept for RF Tuning Operations
•
All RF tuning operations must be carried out in the MJS-38 Module Jig!
•
JBV-1 Docking station with MJF-13 Docking Station Adapter must not be
used for RF tunings, only for testing!
used for RF tunings, only for testing!
•
Power to MJS-38 must be supplied from an external DC power supply, not
FPS-8 prommer
FPS-8 prommer
•
MJS-38 input voltages:
Maximum + 5 VDC
Nominal input for RF tunings is +4.2 V DC
Minimum +3V DC
•
Remember the cable attenuation when setting required RF levels
Figure 1: RF tuning setup
Item:
Service accessory:
Type:
Product code:
1
Module jig
MJS-38
0770416
2
DC power cable
PCS-1
0730012
3
Modular cable
XRF-1
0730085
4
Service Mbus cable
DAU-9S
0730108