Nokia RM-42, Руководство по обслуживанию

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Figure 107 General diagram of the main LCD display module ....................................................................................... 9–20
Figure 108 LoSSi signals in RM-42 ........................................................................................................................................... 9–21
Figure 109 General diagram of the sub-display module ................................................................................................. 9–22
Figure 110 ALS HW implementation ....................................................................................................................................... 9–25
Figure 111 Audio block diagram .............................................................................................................................................. 9–27
Figure 112 Internal microphone circuitry ............................................................................................................................. 9–27
Figure 113 External microphone circuitry (Pop-Port connects to the right side) .................................................... 9–28
Figure 114 Internal earpiece circuitry .................................................................................................................................... 9–28
Figure 115 Internal speaker circuitry ..................................................................................................................................... 9–29
Figure 116 External earpiece circuitry (Pop-Port connected on the right) ................................................................ 9–30
Figure 117 External audio connector ..................................................................................................................................... 9–30
Figure 118 Charger connector .................................................................................................................................................. 9–35
Figure 119 Battery connector ................................................................................................................................................... 9–36
Figure 120 Keyboard connector ............................................................................................................................................... 9–37
Figure 121 Fold unit connector ................................................................................................................................................ 9–39
Figure 122 Connections between fold unit and engine board ...................................................................................... 9–40
Figure 123 WCDMA transmitter ................................................................................................................................................ 9–48
Figure 124 Block diagram of DCDC converter and WCDMA PA ........................................................................................ 9–49
Figure 125 GSM transmitter ....................................................................................................................................................... 9–50
Figure 126 GSM/EDGE power control topology and control signals ............................................................................. 9–51
Figure 127 Power control signal usage in GSM (GMSK) and EDGE (8PSK) transmission .......................................... 9–52
Figure 128 Phase locked loop in N7500 and N7501 (PLL) ............................................................................................... 9–53
Figure 129 RF supply connections from the BB mixed mode ASIC ................................................................................ 9–54
RM-42
System Module
Nokia Customer Care
9241872 (Issue 1) Company Confidential Page 9–5
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