Introduction to troubleshooting for service........................................................................................................6-5

Test points for service............................................................................................................................................6-5

Power and charging...............................................................................................................................................6-5

Troubleshooting: Phone is dead......................................................................................................................6-5

Troubleshooting: Phone does not stay on or is jammed..............................................................................6-6

Troubleshooting: Charging failure..................................................................................................................6-6

Troubleshooting: Low battery operation time..............................................................................................6-6

Interfaces................................................................................................................................................................6-6

Troubleshooting: FM radio...............................................................................................................................6-6

Camera troubleshooting...................................................................................................................................6-6

Troubleshooting: SIM card...............................................................................................................................6-7

Troubleshooting: Flash programming............................................................................................................6-7

User interface troubleshooting.............................................................................................................................6-8

Display troubleshooting...................................................................................................................................6-8

Power key failure..............................................................................................................................................6-9

UI module keys troubleshooting.....................................................................................................................6-9

Audio........................................................................................................................................................................6-9

Troubleshooting: Audio general......................................................................................................................6-9

Troubleshooting: IHF........................................................................................................................................6-9

Troubleshooting: Microphone..........................................................................................................................6-9

Troubleshooting: Earpiece.............................................................................................................................6-10

Troubleshooting: TDMA noise........................................................................................................................6-10

Troubleshooting: Bluetooth audio................................................................................................................6-10

Troubleshooting: Vibra...................................................................................................................................6-10

Connections...........................................................................................................................................................6-11

Troubleshooting: Bluetooth...........................................................................................................................6-11

Troubleshooting: USB.....................................................................................................................................6-11

Troubleshooting: IrDA....................................................................................................................................6-11

RF troubleshooting and tuning...........................................................................................................................6-11

RF troubleshooting for service.......................................................................................................................6-11

Auto tuning......................................................................................................................................................6-12

List of Figures

Figure 84 Test points for repair services..............................................................................................................6-5

Figure 85 Troubleshooting: Display.....................................................................................................................6-8

Figure 86 Auto tuning concept with CMU200....................................................................................................6-12

Figure 87 Auto tuning concept with RX and TX tuning devices and splitter..................................................6-13

Issue 1

Table of Contents

COMPANY CONFIDENTIAL

Nokia Customer Care

Page 6 -3

Table of Contents