User Guide

PAMS Technical Documentation 6 - Troubleshooting
NPE-4
Original ãNokia Corporation. Page 6-9
Display Information: “Contact Service”
When this error appears in the display, it means that one or more of the internally Base-
band tests has failed. The Baseband tests (selftests) are performed each time the phone is
powered on. The selftests are devided into those performed while powering up (Start up
tests), and the ones that can be executed with a PC using Phoenix (Runtime tests). The
following Start-up tests are performed during power up:
UPP Register verfication test.
UEM CBUS Interface test.
SleepX loop test.
Aux. Data loop test.
Ear Data loop test.
Tx IDP loop test.
Tx IQ DP loop test.
SIM Clock loop test.
Power doesn't stay on or
phone is jammed
PURX = 1.8 VDC on V130
(Bluetooth module) pin44
~1 sec. after power key is
pressed
Yes
Check:
D200,PWB
No
UI functionality and keys react
to pressure
Yes
Sleep clock on J404
~32.768 Hz, 1.8 Vpp
Check:
B200,C209,C210,
D200,PWB
No
Yes
Check:
D400,D450,Z300,
Keymat,
Lightguide,PWB
No
Yes
13 MHz clock min 300
mVACpp on C424 towards
D200 with regular probe Cin
~10-13 pF/10M
Check:
C424,C425,L420,
C420,R420,N600
(HAGAR)
No
Yes
TBA