User Guide

RM-11
Troubleshooting - RF (Part 2) CC Technical Documentation
Page 4 ©2004 Nokia Corporation Confidential Issue 1 02/2004
Synthesizer Setup Using Phoenix
Figure 2: Phone Control dialog box
1. Click the LOCAL button on the Phone Control dialog box.
2 Use the following settings for the fields on the RF Main Mode dialog box:
• UHF: Use RX/TX mode in PCS and Cell band. This allows for checking power
to both RX and TX circuits. Typically, use channel 384 in Cell band and 600 in
PCS band.
• RX VHF: Use RX mode; one band is enough.
• TX VHF: Use RX/TX mode in PCS and Cell band.
Figure 3: RF Main Mode dialog box
3. Click the Set button.
Note: Make sure the “RF Main Mode set successfully...” message appears.
VCTCXO Troubleshooting
The VCTCXO frequency is 19.2MHz, which is the reference signal. Without 19.2MHz, the
phone will not power up. This signal goes to Batman, Robin, UHF PLL, and also to the UPP
via a buffer amplifier (D572).