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Copyright 2005© Siemens AG
Page 48 of 53
TD_Repair_L2.5_A70_A75_R1.0.pdf Release 1.0
10.3 Microphone
Pin Name IN/OUT Remarks
1 MICP1 O Microphone power supply. The same line carries the
frequency speech signal.
2 GND_MIC
10.4 Battery (X181)
Pin Name Level Remarks
1 BATT+ 3 V... 4.5V Positive battery pole
2 AKKU_TYP 0V...2.65V Recognition of
battery/supplier
3 GND - Ground
4 GND - Ground
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