Nokia 2630 RM-298 Service Manual page 45

RM-298; RM-299
Baseband Troubleshooting Instructions
General baseband troubleshooting......................................................................................................................3-5
Key components ................................................................................................................................................3-5
Power supply test points..................................................................................................................................3-5
Phone cannot be powered on (I).....................................................................................................................3-5
Phone cannot be powered on (II)....................................................................................................................3-7
Phone cannot be flashed ..................................................................................................................................3-8
Easy flash programming does not work
Display shows "Contact Service"
The phone does not register to the networks, or the phone cannot make a
SIM related faults.................................................................................................................................................
Insert SIM card fault
SIM card rejected ............................................................................................................................................
User interface.......................................................................................................................................................
Blank display...................................................................................................................................................
Corrupted display ...........................................................................................................................................
Dead keys ........................................................................................................................................................
No backlight for display or/and keys
Audio troubleshooting........................................................................................................................................
Audio troubleshooting using phoenix
Check microphone using "Hp microphone in Ext speaker out" loop
Check earpiece using "Ext microphone in Hp speaker out" loop
Check IHF & ringing tone function using
Check vibra function using "Vibra
Earpiece fault ..................................................................................................................................................
IHF/ringing tone fault
Microphone fault ............................................................................................................................................
Headset earpiece fault
Headset microphone
List of Tables
Table 6 Connector for External Audio Accessories
List of Figures
Figure 9 Troubleshooting when phone cannot be powered on .......................................................................3-6
Figure 10 Troubleshooting when phone does not stay on or phone is jammed ............................................3-7
Figure 11 Flash programming fault......................................................................................................................3-9
Figure 12 Easy flash programming
Figure 13 Troubleshooting when the "Contact Service" message is seen
Figure 14 No registering or call
Figure 15 Insert SIM card fault
Figure 16 Signal diagram
Figure 17 Signal diagram
Figure 18 Phoenix audio test window
Figure 19 4-pole jack plug for audio
Figure 20 Test arrangement for
Figure 21 Test arrangement for of
Figure 22 Checking IHF and ring tone by using
Figure 23 Checking vibra function by using vibra control
Issue 1
Table of Contents
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"Buzzer"......................................................................................
control"..................................................................................................
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fault.............................................................................................................................
fault...........................................................................................................
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accessory................................................................................................
microphone...................................................................................................
earpiece.....................................................................................................
COMPANY CONFIDENTIAL
Copyright © 2007 Nokia. All rights reserved.
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"Buzzer"................................................................................
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call...................................
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3-10
3-12
3-13
3-15
3-15
3-16
3-16
3-16
3-17
3-17
3-18
3-19
3-19
3-20
3-21
3-21
3-22
3-23
3-24
3-25
3-26
3-27
3-20
3-11
3-13
3-14
3-15
3-16
3-16
3-19
3-20
3-21
3-21
3-22
3-22
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