Our service book is in Arabic and English only Below you can find index of the book: General Information Disassembly Instruction System model and USER Interface - Technical summary - DC-characteristics - Modes of Operation - Charging - Circuitry Electrical Characteristics - Power Up and Reset - A/D Channels - LCD & Keyboard Backligt - Internal Audio - Keyboard - Memory Module - Test points - RF block diagram - Frequency synthesizers - Receiver - Transmitter - Synthesizer and RF Control Parts list Troubleshooting - Transceiver Troubleshooting - Troubleshooting steps - General Instructions - Baseband Troubleshooting - Baseband Testpoints - Fault Finding Charts - Phone is dead - Flash programming does not work - Power does not stay on or phone is jammed - Display information: "Contact Service" - Phone does not register into the network or the phone cannot make a call - SIM related faults - Insert SIM card fault - Audio related faults - Charging failure RF Troubleshooting - General description of the RF circuits - Receiver - General Instructions for GSM900 RX Troubleshooting - Fault Finding Chart for GSM900 Receiver - General Instructions for GSM1800 RX Troubleshooting - Fault Finding Chart for GSM1800 Receiver - Measurement points in the receiver - Transmitter - Measurement points for the transmitter - General instructions for GSM TX troubleshooting - Fault finding chart for GSM900 transmitter - PCN Transmitter - General instructions for PCN TX troubleshooting - Synthesizer - General Instructions for Synthesizer troubleshooting - 26 Mhz Reference Oscillator (VCXO) - VCO - Fault finding chart for PLL Synthesizer - Measurement points for the PLL - Frequency lists Circuit Theory Diagram |