Preliminary Rf Troubleshooting; Rf Troubleshooting Equipment List - Nokia 6235 Troubleshooting Manual

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Preliminary RF Troubleshooting

Verify the following if the mobile terminal cannot make a call:
• The mobile terminal is in Normal Mode (i.e., the mobile terminal is searching for
a signal, net server is on).
• The Preferred Roaming List (PRL) is loaded into the mobile terminal.
• The mobile terminal is tuned and has passed tuning. Read the tuning parameters
using the Read Parameters component in Phoenix. An untuned mobile terminal
has all zeros in the tuning file.
• The call box channel is set for a channel in PRL.
• The SID is correct and entered into the mobile terminal.
• The VCTCXO is centered as described in the
page 48.
• The transmitter and receiver are working properly in Local Mode. See
"Transmitter RF
Troubleshooting" on page

RF Troubleshooting Equipment List

You will need the following equipment for RF troubleshooting:
• Computer with AMS version of Phoenix
• Agilent 8960 CDMA call box (or equivalent)
• Signal Generator
• Power Supply
• Digital Multimeter
• Diagnostic Test Jig (MJ-71)
• Spectrum Analyzer
• AMS RF Probe, AAS-10A (p/n0730306) or AAS-10B (p/n0730307)
• Oscilloscope
• RF Connectors and cables
• Optional High Impedance Probe
Issue 1 04/2005
Troubleshooting" on page
28
©2005 Nokia Corporation
6235/6235i/6236i (RM-60)
RF Description and Troubleshooting
"VCTCXO Manual
8 and "Receiver RF
for detailed information.
Company Confidential
Tuning" section on
Page 7