Siemens C12 Service Manual

Siemens C12 Service Manual

Private communication systems mobile phones

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Service Manual
C10 / C11 / C12
Service Manual C1x
Sm_C1x_lvl2_v10_w97.doc
Private Communication Systems
for
V 1.0
V 1.0
Page 1 of 23
Mobile Phones
PN MP ST
R. Fleuren
09/98

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Table of Contents
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Summarization of Contents

2 Technical Data
Phone Specifications Summary
Key physical and performance specifications for the C1x series mobile phones.
Standard Accessories List
Details the standard and optional accessories included or available for the C1x models.
3 General Information
Siemens C Class Mobile Introduction
Introduces the C class of Siemens mobile phones targeted at the mass consumer market.
4 Mechanical Concept
C1X Mechanical Drawing and Parts
Presents the detailed mechanical drawing of the C1x mobile phone, identifying key components.
Tools for C1X Disassembly
Lists the mandatory tools required for the safe and effective disassembly of the C1X phone.
Step-by-Step C1X Disassembly
Provides detailed, sequential instructions for taking apart the C1X mobile phone.
Step-by-Step C1X Assembly
Provides detailed, sequential instructions for reassembling the C1X mobile phone.
Handset Datecode Interpretation
Explains how to interpret production and service date codes found on the IMEI sticker.
5 Hardware Concept
C1X Block Diagram Explained
Presents and explains the overall block diagram of the C1x mobile phone's architecture.
Key Integrated Circuits Overview
Details the five major integrated circuits in the handset and their respective functions.
C1X Power Supply System
Explains the power supply concept and provides a block diagram for the C1x mobile phone.
Overvoltage Protection Guidelines
Details critical overvoltage conditions for battery and charging to prevent damage.
6 Software Programming
C1X Software Booting Process
Describes the procedure for programming handset software directly from a PC.
Supported Language Groups
Lists the language groups currently available for the C1x handset software.
7 Battery Management
Battery Specifications and Handling
Details the NiMH battery specs, capacity, and correct insertion method to prevent damage.
Battery Charging Procedures
Explains the battery charging process and lists compatible Siemens chargers for C1x.
Battery Short Circuit Protection
Details the internal polyswitch protection against excessive output current from the battery.
Deep Discharge Battery Recovery
Provides steps for recovering deeply discharged batteries using trickle and normal charging.
Battery Manufacturer Datecodes
Explains datecode formats for Maxell and Varta batteries to determine production dates.
8 Phone Unblocking
Siemens Hotline for Unblocking Codes
Provides contact details for the Siemens hotline to retrieve unblocking codes for disabled phones.
Online Tool for Unblocking Codes
Describes an internet solution for obtaining master phone, network, and provider codes.

Table of Contents