Figure 129 RX calibration...........................................................................................................................................................7–17

Figure 130 RX calibration with band EGSM900...................................................................................................................7–18

Figure 131 RX calibration values..............................................................................................................................................7–18

Figure 132 RX band filter response compensation............................................................................................................7–19

Figure 133 RX band filter response compensation for EGSM900...................................................................................7–20

Figure 134 RX Channel Select Filter Calibration...................................................................................................................7–21

Figure 135 TX RF block diagram...............................................................................................................................................7–22

Figure 136 Shielding cans..........................................................................................................................................................7–22

Figure 137 Preparing for transmitter troubleshooting....................................................................................................7–23

Figure 138 TX-BB interface troubleshooting and control signals.................................................................................7–24

Figure 139 Oscilloscope screen shots.....................................................................................................................................7–25

Figure 140 RF side of transmitter troubleshooting...........................................................................................................7–26

Figure 141 Oscilloscope screen shots (RF)............................................................................................................................7–27

Figure 142 RF controls.................................................................................................................................................................7–28

Figure 143 Tx IQ tuning..............................................................................................................................................................7–28

Figure 144 Phoenix set-up (Tx IQ Tuning windows).........................................................................................................7–29

Figure 145 Spectrum analyzer screen shot when performing IQ tuning, part 1......................................................7–30

Figure 146 Spectrum analyzer screen shot when performing IQ tuning, part 2......................................................7–31

Figure 147 Phoenix menu select (Tx Power Level Tuning menu).................................................................................7–32

Figure 148 Phoenix Power Level Tuning menu..................................................................................................................7–33

Figure 149 Phoenix screen shot (Tx Power Level Tuning)...............................................................................................7–34

Figure 150 Spectrum analyzer screen shot during power level tuning......................................................................7–35

Figure 151 Testpoints of the main board, top part...........................................................................................................7–36

Figure 152 Testpoints of the main board, bottom part...................................................................................................7–37

Figure 153 Synthesizer block diagram..................................................................................................................................7–38

Figure 154 Synthesizer key components..............................................................................................................................7–39

Figure 155 Preparation for troubleshooting using Phoenix RF control setup..........................................................7–40

Figure 156 Troubleshooting chart for synthesizer............................................................................................................7–41

Figure 157 Bluetooth component placement.....................................................................................................................7–42

Figure 158 Phoenix settings for Bluetooth troubleshooting..........................................................................................7–43

Figure 159 Bluetooth troubleshooting..................................................................................................................................7–44

Page 7–4

Company Confidential

9238460 (Issue 1)

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