Cellular Phone Fault Finding for Mobile Cell Phone Repairing

Cellular Phone Fault Finding for Mobile Cell Phone Repairing

Taking after are diverse electronic parts and segments in various areas inside a versatile mobile phone: 

System Fault: Antenna Switch, PFO, FEM, RF IC, VCO, RX-Filter, TX-Filter, RF Antenna, RF Crystal, External Antenna Socket, Network Signal and Supply Control and Interface Section. On the off chance that we think about the parts and segments present in the Network area and their capacity then we can without much of a stretch repair the deficiency by taking a gander at the code number of the flawed segment in the Circuit Diagram and the PCB Layout Diagram. Along these lines we can without much of a stretch make great utilization of circuit graph for versatile mobile phone repairing. 

Power ON Fault: Battery (3.7V), Battery Connector Jack, Power IC, CPU, Flash IC, S-RAM IC, RF Crystal, RF Clock Section Component, RF IC, Power ON/OFF Trigger Components. 

Charging Fault: Charger (5-6V), Battery (3.7V), Charger Connector, Charger Volt Fuse, Coil, Charger Over Volt Protector, Charging IC, Power IC, Charging Regulator, Charging Volt Output Components, Charger and Charger Volt Detector Components. 

SIM Fault: SIM Card, SIM Socket, SIM Signal and Supply Interface Components, Resistance, Coil, Power IC, CPU and so forth. 

Ringer Fault: Ringer, Ringer Signal Input and Output Components, Audio Amplifier IC, Power IC, CPU and so forth. 

Ear Speaker Fault: Ear Speaker, Ear Speaker Signal Components, Audio Amplifier IC, CPU, Power IC and so forth. 

Small scale SD Card Fault/MMC Fault: Micro SD Card, Micro Card Connector, Micro Card Detector Switch, Micro Card Detector Signal Components, CPU and so forth. 

USB and Bottom Connector flaw: USB and Bottom Connector, USB and Signal Interface Connector Components, USB Signal Interface IC, USB Driver IC, CPU and so forth. 

Keypad Fault: Key Tip, Key Pad Dot Sheet, Key Signal Filters, Key Signal Varactors, Key Board to Key Connector, CPU and so on. 

Show Fault: LCD, LCD Connector, LCD Supply Components, LCD Signal Interface Filter IC, CPU, LCD Signal Interface Resistance and so on. 

MIC Sound Fault: MIC, MIC Interface Connection, MIC Signal and Supply Components, Power IC, CPU and so on. 

Backdrop illumination (LED) Fault: LED, Backlight Driver IC, Backlight Driver Section Components, Power IC, CPU and so on. 

Bluetooth Fault: Bluetooth Antenna, Bluetooth Driver IC, Bluetooth Section Crystal, CPU and so on. 

FM Radio Fault: Fands Free Lead, Hands Free Connector, FM and Bluetooth IC, FM Driver IC, CPU and so on. 

Vibrator Fault: Vibrator Motor, Vibration Supply Components, Power IC, Vibrator Driver IC and so on. 

Touch Panel (PDA) Fault: Touch Panel/PDA Panel, Touch Panel Control IC, CPU, Signal Interface Parts and so forth.