Baseband Troubleshooting Overview - Nokia RM-164 Service Manual

RM-164
BB Troubleshooting and Manual Tuning Guide

Baseband troubleshooting overview

This section is intended to be a guide for localising and repairing electrical faults.
The table below tells you what troubleshooting to go to.
Abnormal current consumption
Flashing does not work or the problem is not clearly
defined
Charging does not work
Display does not work
Backlights do not work
USB does not work
Audio (mic, earpiece, IHF) does not work
Camera does not work
Slide sensor detection
Bluetooth does not work
FM radio does not work
Issue 1
Problem
COMPANY CONFIDENTIAL
Copyright © 2007 Nokia. All rights reserved.
Troubleshooting
1 General power checking troubleshooting
(page 3–6)
2 Battery current measuring fault troubleshooting
(page 3–6)
1 Flash programming fault troubleshooting
(page 3–16)
2 Clocking troubleshooting (page 3–9)
3 Combo memory troubleshooting (page 3–14)
Charging troubleshooting (page 3–8)
Display troubleshooting (page 3–23)
1 Backlight troubleshooting (page 3–24)
2 LED driver troubleshooting (page 3–25)
USB troubleshooting (page 3–49)
1 Audio troubleshooting (page 3–27)
2 Acoustics troubleshooting (page 3–36)
Camera troubleshootoing (page 3–11)
MR sensor troubleshooting (page 3–27)
Bluetooth troubleshooting (page 3–39)
FM radio troubleshooting (page 3–18)
Page 3 –5