Nokia 3205 服务手册

RM-11

Troubleshooting - RF (Part 2)

CC Technical Documentation

Page 2 

©2004 Nokia Corporation     Confidential

Issue 1 02/2004

Synthesizer Setup Using Phoenix ................................................................................4
VCTCXO Troubleshooting  .........................................................................................4
UHF Synthesizer Troubleshooting  ..............................................................................6
UHF Synthesizer Schematic  ........................................................................................6
UHF Synthesizer Layout  .............................................................................................7

RX VHF (Batman LO) Schematic ...............................................................................7
RX VHF Layout  ..........................................................................................................8

TX VHF Schematic  .....................................................................................................9
TX VHF Layout .........................................................................................................10

Transmitter Schematic 1  ............................................................................................11
Transmitter Schematic 2  ............................................................................................12
TX Troubleshooting Using Phoenix ..........................................................................13
PCS Band TX Probe Points  .......................................................................................15
Cell and AMPS Band TX Probe Points .....................................................................16
TX AMPS Troubleshooting Using Phoenix  ..............................................................17

Receiver Schematic  ...................................................................................................18
Turning on Rx Path Using Phoenix  ...........................................................................19
Switching Rx Gain States Using Phoenix  .................................................................20
Receiver IF Troubleshooting Layout .........................................................................21
Receiver RF Troubleshooting Layout  .......................................................................22
Receiver DC Troubleshooting Layout .......................................................................23
Receiver DC Troubleshooting Layout .......................................................................24
Alfred Receiver Troubleshooting  ..............................................................................25
Receiver DC Troubleshooting Alfred ........................................................................26
Control Signals at RF-BB Interface ...........................................................................26
Back Panel Control Signals RF-BB Interface  ...........................................................27