Rx Path Troubleshooting - Nokia 7088 Troubleshooting Manual

7088 (RM-219)
RF Description and Troubleshooting

Rx path troubleshooting

Rx path
Faults
Measure DC test
points at Table 4. Is
it OK?
YES
Measure Rx RF test
points 1
at Table 5. Is it OK
YES
Measure Rx RF test
points 2
at Table 5. Is it OK
YES
Measure Rx RF test
points 3
at Table 5. Is it OK
YES
Connect System Simulator to
MS antenna.
Note:
•
MSM6025 is underfilled and cannot be replaced.
• Memory IC is underfilled and cannot be replaced.
• The Baseband Shielding Cover Assy and RF Shielding Cover cannot
be reused after removal.
• After using the heatgun, the domesheet is recommended to be
replaced.
Page 18 © 2006 Nokia Corporation
Check PM6610
NO
Reheat solder joints
NO
of C820, L802
Reheat solder joints
NO
of L801, C823 and
RFR6122
Reheat solder joints
NO
of U630
Check Antenna Module
NO
Reheat solder joints
NO
of PM6610
Change RFR6122
NO
Company Confidential Issue 1 11/2006