User Guide

RM-11
Troubleshooting - Baseband CC Technical Documentation
Page 44 ©2004 Nokia Corporation Confidential Issue 1 02/2004
Phone is Totally Dead
Phone is
dead
Phone current is
zero or too high?
Phone current is
<=30 mA
Phone current is
35 mA
Is phone in Local
Mode?
Change UEM
Repair
OK restart
Check BSI line X100,
R202, R203, C230.
Are they OK?
Phone is
jammed
Flash
faults
¾ If current is zero, check X100 solder and make
sure Vbatt connector makes contact.
¾ If current is too high, check for shorts.
¾ Make sure all BB regulators are at their
respective voltage levels (VANA, VIO, VCORE,
VFlash1, and VR3). See phone's top view
diagram for test points.
¾ Make sure the System Clk is 19.2MHz and that
the Sleep Clk is 32KHz
¾ Make sure PURX and SleepX signals are high
(1.8V)
YES
NO
YES
YES
NO
NO
NO
YES
NO YES
YES
NO
Is phone flash
programming OK?