Mobile Repairing Basic Component Details

 Mobile Repairing Basic Component Details

8 Types of Capacitors (with Pictures)

Mobile Phone Major Parts/Components Name List

1. Housing
2. Back Cover (plastic & metal)
3. Display (Protection glass,Tuchpad & display)
4. Battery
5. Motherboard (PCB)
6. Speaker (Ear & Ringer)
7. Mic (Analog & Digital)
8. Antina pad
9. Camera
10. Vibrator
11. Sub Bard
12. Flex Cable
13. on/off switch

1.Resistor

Chip/SMT/ SMD resistors are rectangular in shape and as a result they are often known as chip resistors. They have metallised areas at either end of the main ceramic body, and in this way they can be set onto a printed circuit board that has pads onto which the two ends are set to provide the connection. There are four types of resistor used in mobile phones.

1. Value Printed Resistors
2. Non Value Printed Resistors
3. Fuseable Resistors
4. Voltage Dependent Resistors (VDR)

Function of Resistor

a.Value Printed Resistor  and Non Value Printed Resistor Although the external structure of the two resistors above is different, the work is the same. It will pass forward by blocking voltage and current according to its capacity. It is emitted from one leg of the resistor by giving voltage to the other leg. Such as.

2.Capacitor

SMD Capacitor is an electronic component made up of an insulator between two conductors. They are small, leadless and can be placed onto modern printed circuit boards using pick and place machines used in modern manufacturing. The comparisons between the the different types of capacitor is generally made with regards to the dielectric used between the plates. There are two types of capacitor used in mobile phones.

1. Polar Capacitor
2. Non Polar Capacitor

Function of Capacitor A, Polar Capacitor The function of this polar capacitor is to filter the DC current. It also accumulates voltage in the polar capacitor according to its capacity. B. Non Polar Capacitor This capacitor filters the signal according to its capacity. It passes the AC current lightly and stops the DC current completely.

3.Inductor (Coil) Surface Mount Inductors offer small size, and if designed on a toroidal core less leakage inductance and lower electromagnetic interference (EMI). SMD inductors are passive components that are placed during surface mount manufacturing processing. They are positive reactance devices, available in many sizes and form factors optimized for particular applications. Inductors are also used to destroy or ground unnecessary signals. If the inductor is measured in units of Henry it is indicated by the wind. There are four types of inductors used in mobile phones.

1. Visible coil
2. Single color
3. Dual color coil
4. Boost coil/Power coil

Function of Coil

a.Visible Coil b.Dual Color Coil c.Iron Core Coil Although the exterior textures of the three coils above are different, the work is almost the same. Such coils are used to soften the sound in the way of speakers and microphones in mobile phones. This gives the audio signal a slight delay, so the sound is sweet. Iron is kept inside the Iron Core Coil so it can be used to filter DC current as well as audio signal. d.Boost Coil Boost Coil works to increase the voltage according to its capacity.

4. Diode

Diode is generally made of germanium or silicon semiconductor. The semiconductor diode is a widely used electronics component found in many electronic circuit designs today. Although there are many different types of diode which use the same basic structure of an area of p-type material meeting an area of n-type material. There are four types of diode used in mobile phones.

1. Rectifier diode
2. Zener diode and TVS Diode
3. Light emitting diode (led)

Function of Crystel

a.RF Crystal The frequency produced by RF Crystal is called CLK Frequency. The frequency it produces is used to carry various information and signals. The body outside the RF crystal is written as the frequency it produces.

b.RTC (Real Time Clock) The CLK Frequency produced by RTC is used to run Time on mobile phones.

Mobile phone Antenna Pad

• GSM Antina Pad
• Wifi Antina Pad
• NFC Antina Pad

A steel plate / leaf is placed on top of the mobile phone set. This is called antenna pad. In most mobile phones, the antenna pad is placed at the top, but in some sets it may be placed at the bottom. In the beginning, the mobile phone sets that came in the market used to have aerial instead of such a plate, but now there is no aerial in the mobile phone sets available in the market. Both the incoming and outgoing signals from the mobile phone set come and go through this antenna pad. This plate is well integrated with the motherboard.