User Guide

CCS Technical Documentation Service Software Instructions
RH-12/RH-28
Issue 1 02/04 Nokia Corporation Page 47
Service Tool Concept for RF Tunings
All RF tunings for RH-12* phones must be carried out in MJ-12 Module Jig.
Power to MJ-12 should be supplied from an external DC power supply, not FPS-8 prom-
mer.
MJ-12 input voltages:
• Maximum + 16 VDC
• Nominal input for RF tunings is +12 V DC
Remember cable attenuation when setting required RF levels.
RF tunings should be made in the same order as shown in this document, the order of the
corresponding menu items in the Phoenix Service SW may be different.