Mobile phone all Hardware Fault (मोबाइल हार्डवेयर फाल्ट)

The hardware components of mobile devices include Central Processing Unit (CPU), batteries, Random Access Memory (RAM), Read Only Memory (ROM), removable storage such as memory cards, input components such as mouthpiece or keyboard, and output components such as earpiece or screen. The study of these components is helpful in the CCFP exam.

Each section has different components. And if any component of this section gets spoiled, then that section is spoiled, the section below and the component attached to it have been given. If any section is bad then you can test the component connected to it and take out the solution.

Following are different electronic parts and components in different sections inside a mobile cell phone:

1.Network 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. If we know about the parts and components present in the Network section and their function then we can easily repair the fault by looking at the code number of the faulty component in the Circuit Diagram and the PCB Layout Diagram. In this way we can easily make good use of circuit diagram for mobile cell phone repairing.

2.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.

3.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.

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

5.Ringer Fault: Ringer, Ringer Signal Input and Output Components, Audio Amplifier IC, Power IC, CPU etc.

6.Ear Speaker Fault: Ear Speaker, Ear Speaker Signal Components, Audio Amplifier IC, CPU, Power IC etc.

7.Micro SD Card Fault / MMC Fault: Micro SD Card, Micro Card Connector, Micro Card Detector Switch, Micro Card Detector Signal Components, CPU etc.

8.USB and Bottom Connector fault: USB and Bottom Connector, USB and Signal Interface Connector Components, USB Signal Interface IC, USB Driver IC, CPU etc.

9. Keypad Fault: Key Tip, Key Pad Dot Sheet, Key Signal Filters, Key Signal Varactors, Key Board to Key Connector, CPU etc.

10.Display Fault: LCD, LCD Connector, LCD Supply Components, LCD Signal Interface Filter IC, CPU, LCD Signal Interface Resistance etc.

11.MIC Sound Fault: MIC, MIC Interface Connection, MIC Signal and Supply Components, Power IC, CPU etc.

12.Backlight (LED) Fault: LED, Back-light Driver IC, Back-light Driver Section Components, Power IC, CPU etc.

13.Bluetooth Fault: Bluetooth Antenna, Bluetooth Driver IC, Bluetooth Section Crystal, CPU etc.

14.WiFi Fault: wifi ic creates wifi section with vco. The vco uses wifi frequency of approximately 13 Mzh.