Troubleshooting Steps - Nokia NSB-9 Service Manual

NSB-9
Troubleshooting Instructions

Troubleshooting steps

The following hints help to find the problem if the circuitry seems to be faulty. The
instructions are divided into following sections:
1. Phone is dead
2. Flash faults
3. Phone is jammed
4. Charging fault
5. Sim card fault
6. Audio faults
7. Display faults
8. Keypad fault
9. FM-radio faults
The first thing to do is to carry out a thorough visual check of the module. Ensure in par-
ticular that:
1. there is no any mechanical damages
2. soldered joints are OK
Page 52
Nokia Corporation
CCS Technical Documentation
Issue 1 04/03