C H A P T E R 1 Cellular Communication Coverage Concept 1 GSM Network Architecture 2 Subscriber Identity Module 3 SIM Application Toolkit 4 Extended GSM 900 - EGSM 5 Built-in Modem 5 Data Application 6 C H A P T E R 2 Level 2 Service Guide Introduction 7 M35 Series Technical Information 8 Accessories 10 General Information 11 M35 Series Exploded Diagram 13 Mechanical Concept 14 Hardware Concept – Block diagram 15 Hardware Description 16 Power Supply Concept 18 Over voltage Condition 18 Battery Charging 18 Short Circuit Protection 19 Normal Charging 19 Deep Discharge Battery 20 M35i Spare Parts Level 1 & Level 2 21 Disassemble the M35 22 Disassemble/Assemble Lower Housing 24 Disassemble/Assemble Control Board Assy 24 Disassemble/Assemble Display Module 25 Disassemble/Assemble Upper Housing 26 Assemble the M35 27 Mobile Software Programming 29 Language Groups 31 Customer Specific Initialization 33 International Mobile Equipment Identity 33 Phone Unblocking 34 C H A P T E R 3 Siemens Service Equipment Introduction 36 Other equipment 38 Software Installation 39 Configuring the test software 40 Running the test sequence 41 ANNEX A 45 ANNEX B 48 C H A P T E R 4 Level 2.5 Repair Document Introduction 49 Antenna Connector 51 Ringer 54 Bottom Connector (Lumberg) 57 Display Connector 61 Keyboard LED 65 Display LED 68 Infrared Diodes 72 ANNEX C PC Adapter Cable & Accessories M35 75 Power Plug for M35 76 Car installation Ratio Unit, M35 77 Car Installation kit Handfree kit 78 Car Installation kit Handfree Pro. 79 Car Installation Comfort GPS, M35 80 References 82