Siemens A70 Service Repair Documentation

Company Confidential s Com
Copyright 2005© Siemens AG
Page 20 of 53
TD_Repair_L2.5_A70_A75_R1.0.pdf Release 1.0
Switching Matrix:
select mode Vsw 1 Vsw 2
GSM900/DCS1800/PCS1900 RX Low Low
EGSM TX high Low
DCS1800/PCS1900 TX Low High
Pin assignment:
1 Antenna 15 PCS1900 RX1
2 GND 16 PCS1900 RX2
3 Vsw2 (DCS1800/PCS1900 TX control) 17 GND
4 GND 18 GND
5 DCS1800/PCS1900 TX 19 GND
6 GND 20 GND
7 GND 21 GND
8 EGSM900 TX 22 GND
9 Vsw1 (EGSM900 TX control) 23 GND
10 GND 24 GND
11 EGSM900 RX1 25 GND
12 EGSM900 RX2 26 GND
13 DCS1800 RX1 27 GND
14 DCS1800 RX2 28 GND

Siemens A70 Specifications

General

Brand	Siemens
Model	A70
Category	Cell Phone
Language	English