User Guide

Nokia Customer Care Troubleshooting Instructions
Company confidential NPL-4/5
Issue 1 05/04 Copyright © 2004 Nokia Corporation. All rights reserved. Page 65
Phone is jammed 2
Phone is
jammed
2
Phone Shutdown
after 30s
Read phone info.
Is it OK ?
Measure
DBUSClk 1MHz signal
from testpoint J413.
Is it OK ?
Measure FBUSRx
signal during phone info
read from testpoint J412.
Is it OK ?
Measure FBUSTx
signal during phone info
read from testpoint J411.
Is it OK ?
Change
UPP
Change
UPP
Change
UEMEk
Retest
No
No
Yes
No
Yes
Yes
No
Change
UEMEk
No
Yes
No