Nokia 3105 Servicehandbuch

RH-48

Troubleshooting — BB

CCS Technical Documentation

Page 32

 ©

 2003 Nokia Corporation         Confidential

Issue 1 11/2003

The following hints should help finding the cause of the problem when the circuitry 
seems to be faulty. Troubleshooting instructions are divided following sections:

1 Top troubleshooting map

2 Phone is totally dead

3 Power doesn‘t stay on or the phone is jammed

4 Flash programming doesn‘t work

5 Display is not working

6 Audio fault

7 Charging fault

First, carry out a through visual check of the module. Ensure in particular that:

• there are no mechanical damages

• soldered joints are OK

• ASIC orientations are OK