Internal earpiece troubleshooting ............................................................................................................... 3–62
Internal microphone troubleshooting ........................................................................................................ 3–63
Internal handsfree speaker troubleshooting ............................................................................................. 3–64
External microphone troubleshooting ........................................................................................................ 3–65
External headset earpiece troubleshooting ................................................................................................ 3–66
Acoustics troubleshooting............................................................................................................................. 3–67
Introduction to acoustics troubleshooting ............................................................................................ 3–67
Earpiece troubleshooting......................................................................................................................... 3–68
IHF troubleshooting.................................................................................................................................. 3–69
Microphone troubleshooting ................................................................................................................... 3–70
Baseband manual tuning guide......................................................................................................................... 3–71
Certificate restoring ....................................................................................................................................... 3–71
Energy management calibration.................................................................................................................. 3–72
List of Tables
Table 9 Display module troubleshooting cases................................................................................................ 3–32
Table 10 Pixel defects ......................................................................................................................................... 3–32
Table 11 Calibration value limits ....................................................................................................................... 3–72
List of Figures
Figure 12 Proximity sensor troubleshooting - part 1...................................................................................... 3–26
Figure 13 Proximity sensor troubleshooting - part 2...................................................................................... 3–27
Figure 14 Resistive touch screen troubleshooting .......................................................................................... 3–28
Figure 15 Touch controller basic checks ........................................................................................................... 3–29
Figure 16 Touch screen basic checks................................................................................................................. 3–30
Figure 17 Keymatrix............................................................................................................................................ 3–31
Figure 18 ALS components ................................................................................................................................. 3–38
Figure 19 GPS antenna........................................................................................................................................ 3–41
Figure 20 GPS layout and basic test points....................................................................................................... 3–42
Figure 21 GPS antenna test pads ....................................................................................................................... 3–43
Figure 22 GPS layout and basic test points....................................................................................................... 3–44
Figure 23 GPS Control dialog box....................................................................................................................... 3–45
Figure 24 Simple Tests – Oscillator Test & Receiver Self Test ......................................................................... 3–46
Figure 25 Simple Tests – Oscillator Test............................................................................................................ 3–47
Figure 26 Simple Tests – Receiver Self Test ...................................................................................................... 3–48
Figure 27 CW Test window................................................................................................................................. 3–49
Figure 28 GPS Quick Test window for GPS troubleshooting ........................................................................... 3–50
Figure 29 Key component placement for BTHFMRDS2.1M............................................................................... 3–54
Figure 30 BT/WLAN antenna .............................................................................................................................. 3–54
Figure 31 Single-ended output waveform of the Ext_in_HP_out measurement when earpiece is
connected. ................................................................................................................................................. 3–60
Figure 32 Single-ended output waveform of the Ext_in_IHF_out out loop measurement when speaker
is connected (measured at speaker pads). No filter is used. ............................................................... 3–61
Figure 33 Single-ended output waveform of the Ext_in_Ext_out loop........................................................... 3–61
Figure 34 Single-ended output waveform of the HP_microphone_in_Ext_out loop..................................... 3–61
RM-356
BB Troubleshooting and Manual Tuning Guide
Page 3 –4 COMPANY CONFIDENTIAL Issue 1
Copyright © 2008 Nokia. All rights reserved.
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