Nokia RM-237 - Section 5

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Table of Contents

Baseband troubleshooting overview...................................................................................................................6–5

Power and charging troubleshooting..................................................................................................................6–6

General power checking troubleshooting ......................................................................................................6–6

Battery current measuring fault troubleshooting .........................................................................................6–6

Charging troubleshooting ................................................................................................................................6–8

Clocking troubleshooting .................................................................................................................................6–9

Interface troubleshooting .................................................................................................................................. 6–10

Camera failure ................................................................................................................................................ 6–10

Introduction to camera troubleshooting ............................................................................................... 6–10

Taking and evaluating test pictures........................................................................................................ 6–10

Camera hardware troubleshooting......................................................................................................... 6–11

Camera viewfinder troubleshooting....................................................................................................... 6–12

Camera: Bad image quality troubleshooting ......................................................................................... 6–13

COMBO memory troubleshooting ................................................................................................................. 6–14

Flash programming fault troubleshooting.................................................................................................. 6–15

FM radio troubleshooting.............................................................................................................................. 6–17

MicroSD card troubleshooting....................................................................................................................... 6–18

User interface troubleshooting.......................................................................................................................... 6–20

Display module troubleshooting.................................................................................................................. 6–20

General instructions for display troubleshooting.................................................................................. 6–20

Display troubleshooting ........................................................................................................................... 6–22

Backlight troubleshooting............................................................................................................................. 6–23

LED driver troubleshooting ........................................................................................................................... 6–24

IrDA troubleshooting ..................................................................................................................................... 6–25

Audio troubleshooting........................................................................................................................................ 6–26

Introduction to acoustics troubleshooting ................................................................................................. 6–26

Audio troubleshooting test instructions...................................................................................................... 6–26

Earpiece troubleshooting.............................................................................................................................. 6–29

Internal earpiece troubleshooting ............................................................................................................... 6–30

External headset earpiece troubleshooting ................................................................................................ 6–31

IHF troubleshooting....................................................................................................................................... 6–32

IHF troubleshooting....................................................................................................................................... 6–33

Microphone troubleshooting ........................................................................................................................ 6–34

Internal microphone troubleshooting......................................................................................................... 6–35

External headset microphone troubleshooting.......................................................................................... 6–36

Connections troubleshooting............................................................................................................................. 6–37

Bluetooth troubleshooting ........................................................................................................................... 6–37

Introduction to Bluetooth troubleshooting ........................................................................................... 6–37

Bluetooth settings for Phoenix................................................................................................................ 6–37

Bluetooth self tests in Phoenix................................................................................................................ 6–38

Bluetooth BER failure troubleshooting................................................................................................... 6–39

Bluetooth audio and UI activation troubleshooting ............................................................................. 6–41

USB interface troubleshooting...................................................................................................................... 6–43

Baseband manual tuning guide......................................................................................................................... 6–44

Certificate restoring for BB5 products.......................................................................................................... 6–44

Energy management calibration.................................................................................................................. 6–49

List of Tables

Table 9 Display module troubleshooting cases................................................................................................ 6–20

RM-237

BB Troubleshooting and Manual Tuning Guide Nokia Customer Care

Issue 1 COMPANY CONFIDENTIAL Page 6 –3