Hardware Set Up; General Voltage Checking - Nokia RH-109 Service Manual

Hardware set up

Hardware requirements for tuning:
• PC (Windows 2000/XP)
• Power supply
• Product specific module jig
• Cables: RF cable and USB cable
• Signal analyzer (TX), signal generator (RX) and RF-splitter or one device including all.

General voltage checking

Steps
1. Set up the main board. The phone should be in FTM mode.
2. Check the following:
#
1 VREG_TCXO
2 VPH_PWR
3 VREG_RFRX1
4 VREG_RFTX
5 VREG_RFRX2
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Figure 5 Tuning concept with CMU200
Signal name
COMPANY CONFIDENTIAL
Copyright © 2008 Nokia. All rights reserved.
Test point
C1009 2.85V
C1204 3.8V
C909 2.1V
C902 2.1V
C919 2.1V
RH-109
RF troubleshooting
Voltage
Issue 1