Troubleshooting - Nokia NPC-1 Series Troubleshooting Instructions

PAMS Technical Documentation
1 Pressing the power key.
2 Connecting the local/test mode resistors to the bsi/btemp lines and connecting
the battery voltage to the phone.
3 Connecting a charger.
4 Phone's internal functions (Real time clock alarm)
In the local and test mode, the baseband can be controlled through MBUS or FBUS (FBUS
is recommended) connections using Phoenix service software.

Troubleshooting

Note: Most of the baseband repair actions require removing the baseband shield.
The shield must not be removed unless authorized by PAMS.
Note: ESN has to re-written onto the phone, if the UEM is replaced. This can be
done only in Central Service.
The BB troubleshooting instructions consist of the following topics:
1 Power up
2 Flash programming
3 Audio
• Earpiece
• Microphone
4 Charging
5 Accessory detection
6 Sleep clock
7 User interface
• Display
• Lights
• Buzzer
• Vibra
• Keyboard
Issue 1 10/01 ãNokia Corporation
Troubleshooting Instructions
NPC-1
Page 5