Table of Contents
General baseband troubleshooting......................................................................................................................3–5
Key components................................................................................................................................................3–5
Power supply test points..................................................................................................................................3–5
Phone cannot be powered on (I).....................................................................................................................3–6
Phone cannot be powered on (II)....................................................................................................................3–8
Phone cannot be flashed..................................................................................................................................3–9
Easy flash programming does not work...................................................................................................... 3–11
Display shows "Contact Service"................................................................................................................... 3–13
The phone does not register to the networks, or the phone cannot make a call................................... 3–14
SIM related faults................................................................................................................................................. 3–16
Insert SIM card fault....................................................................................................................................... 3–16
SIM card rejected............................................................................................................................................ 3–17
User interface....................................................................................................................................................... 3–17
Blank display................................................................................................................................................... 3–17
Corrupted display ........................................................................................................................................... 3–18
Dead keys ........................................................................................................................................................ 3–18
No backlight for display or/and keys ........................................................................................................... 3–19
Audio troubleshooting........................................................................................................................................ 3–20
Audio troubleshooting using phoenix......................................................................................................... 3–20
Check microphone using "Hp microphone in Ext speaker out" loop ........................................................ 3–21
Check earpiece using "Ext microphone in Hp speaker out" loop .............................................................. 3–22
Check IHF & ringing tone function using "Buzzer"...................................................................................... 3–22
Check vibra function using "Vibra control".................................................................................................. 3–23
Earpiece fault.................................................................................................................................................. 3–24
IHF/ringing tone fault.................................................................................................................................... 3–25
Microphone fault ............................................................................................................................................ 3–26
Headset earpiece fault................................................................................................................................... 3–27
Headset microphone fault............................................................................................................................. 3–28
List of Tables
Table 4 Connector for External Audio Accessories ........................................................................................... 3–21
List of Figures
Figure 9 Troubleshooting when phone cannot be powered on .......................................................................3–7
Figure 10 Troubleshooting when phone does not stay on or phone is jammed ............................................3–8
Figure 11 Flash programming fault................................................................................................................... 3–10
Figure 12 Easy flash programming fault........................................................................................................... 3–12
Figure 13 Troubleshooting when the "Contact Service" message is seen .................................................... 3–14
Figure 14 No registering or call ......................................................................................................................... 3–15
Figure 15 Insert SIM card fault........................................................................................................................... 3–16
Figure 16 Signal diagram ................................................................................................................................... 3–17
Figure 17 Signal diagram ................................................................................................................................... 3–17
Figure 18 Phoenix audio test window.............................................................................................................. 3–20
Figure 19 4-pole jack plug for audio accessory................................................................................................ 3–21
Figure 20 Test arrangement for microphone................................................................................................... 3–22
Figure 21 Test arrangement for of earpiece..................................................................................................... 3–22
Figure 22 Checking IHF and ring tone by using "Buzzer"................................................................................ 3–23
Figure 23 Checking vibra function by using vibra control .............................................................................. 3–23
RM-362; RM-363
Baseband Troubleshooting Instructions
Issue 1 COMPANY CONFIDENTIAL Page 3 –3
Copyright © 2008 Nokia. All rights reserved.
To Next Page
Loading...
Need help?
General
