Small Parts / Electronic Components of Mobile Phone and Their Function
Small Parts / Electronic Components of Mobile Phone: Identification, Faults, Function.
The PCB of a mobile cell phone has several small parts or electronic components. When learning mobile repairing, it is important to learn and understand how to identity these small parts or electronic components and understand their function. Identification of these small parts on the PCB of a mobile phone is easy if you know and understand some of the basic rules. It is also important to understand what to do if any of these small components is faulty.
Most of these electronic components are SMD (Surface Mount Devices). They don’t have any leads like thru-hole electronic components.
Small Parts / Electronic Components of a Mobile Phone: Identification, Faults and Function:
1. Boost Coil
Its size is little bigger than coil. It is found in black colour and looks like a large button. Its function is to increase current. If this coil gets damaged then it has to be changed.
2. Coil
It is found in any section of a mobile phone. It is found in many shapes and sizes. Coils are found in 2 colours: (i) Black and white; and (ii) Blue and white. It has binding of copper coil inside. It filters and decreases Current and Voltage.
3. Capacitor
3 types of capacitor are found in a mobile cell phone:
- Non-Electrolytic Capacitor: It is found in any section of a mobile phone. Its height is little more than chip resistance. It can be of gray, yellow or brown in color. It has no Positive (+) or Negative (–) side. It filters DC current.
- Electrolytic Capacitor: It is found in any section of a mobile phone. Its size is larger than non-electrolytic capacitor. It is found in 2 colors – (i) Orange with brown strip: and (ii) Black with white strip. The side with the strip is Positive (+) and the other side is Negative (–). It filters and stores current.
- Network Capacitor: It is found in any section of a mobile phone. It is made from 2 or more Non-Electrolytic Capacitors.
4. Coupler
This electronic component is found in the Network Section of a mobile phone. It is of either black or white color and has 6 pins bent inside.
Function: It filters network.
Faults: If the coupler is faulty then there will be no network in the mobile phone.
5. Diode
Diodes are of 4 types:-
- Rectifier Diode: It is found in black color and converts AC Current to DC Current. It passes current in one direction. It does not pass current in reverse direction.
- LED: LED stands for Light Emitting Diode. It is found in white or light yellow color and emits light.
- Zener Diode: It is found in charging section. It filters and minimize current and passes forward. It acts as voltage regulator. Zener diode has fixed capacity like 4V, 6V, 8V etc.
- Photo Diode: It is used for Infrared. It captures Infrared Rays.
6. Regulator
This electronic component is found in any section of a mobile phone. It is of black color and has 5 or 6 legs. It filters current and regulates voltage.
7. Resistance or Resistor
There are 2 types of Resistors on the PCB of a mobile phone:
- Chip Resistance: It can be found in any section of a mobile phone. It is of black color. In some sets it is also found in blue and green colour. It is the smallest electronic components on the PCB of a mobile phone. It Decreases current and passes forward.
- Network Resistance: It can be found in any section of a mobile phone. It is made from 2 or more Chip Resistance.
8. Transistor
This electronic component is found in any section of a mobile phone. Transistor is of black color and it has 3 legs. It does the work of switching.
Video: Mobile Cell Phone Small Parts / Electronic Components
Basic Electronic Components and their Function
Electronic Components of Mobile Phone FAQs
What is the purpose of a microchip in a mobile phone?
A microchip, also known as an integrated circuit (IC), is a small SMD electronic component that contains a large number of transistors and other components. It is the brain of the mobile phone and controls all its functions, including processing data, managing memory, and controlling the display.
What is the role of a capacitor in a mobile phone?
A capacitor is an electronic component that stores electrical energy and releases it when required. In a mobile phone, capacitors are used to stabilize voltage, filter out noise, and improve the performance of the power supply. They also help to maintain the charge of the battery and prevent it from draining too quickly.
What is the function of a sensor in a mobile phone?
A sensor is an electronic component that detects changes in the environment and converts them into electrical signals. In a mobile phone, sensors are used to detect motion, orientation, light, and sound. They help to adjust the brightness of the screen, rotate the screen when the phone is turned, and activate features such as auto-focus and proximity sensing.
How do electronic components affect the performance of a mobile phone?
Electronic components play a crucial role in determining the overall performance of a mobile phone. They affect everything from the speed of the processor to the quality of the camera and the battery life of the phone. The quality and reliability of the electronic components used in a mobile phone can determine how long it lasts and how well it performs under various conditions.
Related Posts:
- Mobile Phone Repairing Tools
- Card Level Parts of a Mobile Phone
- Frequency and Frequency Band in Mobile Cell Phone
- Resonant Circuit or Tuned Circuit in Mobile Cell Phone
- Types of Filters in Mobile Cell Phone and Their Function
- Where To Buy Electronic Components in India
- Types of Diode in Mobile Cell Phone and Their Function
- Sections and Parts Inside a Mobile Cell Phone
- Mobile Phone Parts Identification | How to Identify Parts & Components on PCB of Mobile Phone
- Mobile Phone Repairing Testing Methods
- Mobile Phone Fault Finding for Mobile Cell Phone Repairing
- Parts of a Mobile Cell Phone and Their Function (Big Parts)
How to check fault smd using a multimeter
ok
Thanks
Hello sir infinix hot 6 earpiece not working I have change several yet is not working
dear tell me , oneplus 6 device ,issue reported dead after sw ota
Sir how can I send photo of my phone PCB.
I will be highly thankful to you.
Tapeshwar
Sir I have old phone lava iris 405+, during charging jack repairing. He remove some smd component, I don’t what they are. Touch is not working. Can I get image of PCB of touch screen section. To know missing component.
pls sir , a capacitor beside the touch pad clip do get hot and which runs down the battery please whats the solution
Please we need to talk. I want to have a deal with you.
Gentle person.i want study of mobile component diply. Do you suggest me a book.name .where to i can buy
I will suggest you to get enrolled in some good Institute and learn practically. It will not take more than 3 Months. Practical is better than theory.
I want to learn in-depth repairing of large and small pcb’s like computer, laptop and mobiles. So i can repair even a tiny fault that cause turn down a whole board. Where can i learn these all from can you please suggest me.
that is nice
Thanks and Welcome.
hello sir i have a note 4 and it just wont power own i try every thing an nothing at first it use to over heat and freeze then one day it went dead however when i connect it to the computer it connect but nothing else could it be the power ic or the capacitors shorts
Overheating means that there is some kind of SHORTING in the PCB. Replace the Battery Connector and Check. If the problem is not solved by Replacing the Battery Connector then clean the PCB with IPA or Alcohol or Petrol and Apply some Hot Air to the PCB and Check. If the problem is still there then the PCB has to be checked for SHORTING.
hello sir, i also have a infinix hot 4 and it just wont power on and i think its dead, i try to heat but nothing came out. also when i connect it to the computer it connect but nothing else. please i need a full help on my phone problem because i need the phone. PLEASE HELP ME AND I WILL BE SO GLAD
Get the Board Checked Thoroughly. Looks like some component is faulty.
Thanks so much sir for your reply, but how will i identify the faulty component easily?
You have to check using Multimeter. There is NO Shortcut.
and also sir what area can the fault came from i mean which area in the board? please
Mainly around the Power IC.
Thanks man, am so grateful.
Electronic components are basic electronic element or electronic parts usually packaged in a discrete form with two or more connecting leads or metallic pads.
Thank for this one and many more other, please can i go ahead and print this article? because i found it worthy
Thanks very much for this wonderful work. But please, like the other big part you didn’t let us know the function of fault of these small part of mobile phones. I mean, if they or any of them is faulty, what effect can it have on such phones.
Audience, please is there any engr reading this and you stay in Ede, Osun State Nigeria. Please signify, we need to talk. 08064851625 call or whatsapp. Thanks.
very useful stuff this u was provided
sir can u post more explanation about all components in mobile pcb with their function with pcb diagram
i m waiting for ur post
Thank you very much bro.
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Thanx I really appreciate
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Further we can talk more over e-mail,pls drop me a mail on [email protected]
Regards- Gaurav
Please mail me through the Contact Page.
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I want sim and memory card tray of sony Ericsson w350i where I can get
You can get it in your Local Market where they sell Mobile Phone Parts and Accessories.
that’s really helpful thanks Mr
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