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1G: first Generation Mobile telephone
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2G: second Generation Mobile
telephone
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3G: third Generation Mobile telephone
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4G: fourth Generation Mobile
telephone
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AC: Alternate Current
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BGA: Ball Grid Array
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BSI: Battery Status Indicator
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CDMA: Code Division Multiple Access
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CPU: Central Processing Unit
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DCT: Digital Core Technology
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DC: Direct Current
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GSM: Global System for versatile
correspondence
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IMEI: International Mobile Equipment
Identity
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IC: Integrated Circuit
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LED: Light transmitting diode
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PDA: Personal Digital Assistant
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PFO: Power Frequency Oscillator
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PCB: Printed Circuit board
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RAM: Random Access Memory
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RF: Radio Frequency
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ROM: Read Only Memory
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RTC: Real Time Clock
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RX: Receive/Receiver (Receiving
Section)
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SMD: Surface Mount Device
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TX: Transmit (Transmitting Section)
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UEM: Universal Energy Manager
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VCO: Voltage-Controlled Oscillator
Card Level Parts of a versatile
It's isolated into three sections
Front Face – Its the intro page of the cell phone.
Back Face-This is the back front of the cell phone. Covers the back part
of the cell phone.
Inward Facia or Facial-This covers the interior part of the cell phone.
It bolsters the center part of the telephone.
Little segments of the cell phone
Ringer – This part of the cell phone is likewise called amplifier. Its
used to play music.
Speaker (Earpiece) – Speaker is utilized for listening sound amid the
telephone call.
Amplifier (Mic) – Microphone transmits sound amid the telephone call.
The Microphone is a sound information gadget.
Vibrator – Vibrator is utilized for making vibration as a part of cell
phone.
Driven (Light Emitting Diode) – LED is utilized to create light in cell
phone.
Charging Connector – Charging connector interfaces the charger to the
PCB of cell phone.
Headphone Connector – Earphone connector interfaces the earphone to cell
phone VIA Jack.
Information Cable Connector – To interface the cell phone to different
gadgets like tablet, PC, USB and so on.
Battery Connector – It interfaces the battery to the PCB of cell phone
with the assistance of circuits.
Battery – Battery supplies the ability to the cell phone.
SIM Card Connector – It associates the SIM card to the PCB of the cell
phone.
Memory Card Connector – We realize that memory card is utilized for
recoveries the information. Different sorts of memory card accessible, for
example, 1GB, 2GB, 4GB, 8GB and so forth.
Camera Connector – We realize that Camera is utilized for to catch
pictures and recordings. Camera connector is utilized for to associate the
camera to the PCB of the cell phone.
Keypad Button – Keypad catch is utilized for associating the keypad
carbon to a work, for example, telephone calls, informing and so on.
Keypad Carbon – Keypad carbon associates the Keypad catch of the cell
phone to the PCB. Its present as DDDDDDDDD.
Keypad connector – It interfaces the keypad to the PCB of the cell
phone.
ON/OFF catch – Every cell phone has ON/OFF catch. It's utilized to begin
and close down the cell phone.
Show Connector – Display connector is utilized to interface the show of
the cell phone to the PCB of the cell phone.
Recieving wire – To get the recurrence of the system.
PCB (Printed Circuit Board) – It's a standout amongst the most
imperative part of the cell phone. Different sorts of connector associates with
PCB with the appropriate connector.
Recieving wire Point – A point in which reception apparatus is
associated with the PCB board is known as the radio wire point. The Antenna
point is situated in the highest point of the PCB
Organize Section
It's additionally imperative for versatile repairing which is situated
underneath the reception apparatus point is called Network Section.
Radio wire Switch – Antenna Switch is situated in the system segment of
the cell phone. It has 16 sticks and is produced using metal at times. GSM
telephones have a recieving wire switch that is white metal in shading. CDMA
telephones having a radio wire switch that is brilliant metal in shading. In
the event that the cell phone doesn't demonstrates organize, then there is
issue with its reception apparatus switch.
PFO (Power Frequency Oscillator) – PFO is situated in the power area
other than the radio wire switch. PFO is otherwise called Band Pass Filter and
P.A. (Control Amplifier). PFO opens up and channels the system recurrence. It
is additionally utilized for selecting the home system. PFO blames additionally
influence the system of the cell phone.
RF IC/Network IC – RF IC is found in the power segment of the cell
phone. It is additionally called the RF flag processor. It is utilized as a
recipient and transmitter of radio and video waves. It acknowledges the
directions appropriateness of the CPU.
26 MHz Crystal Oscillator – Its makes appropriate recurrence amid the
active calls. It's comprised of metal.
RX Filter – RX Filter is utilized to channel recurrence amid approaching
calls.
TX Filter – TX channel is utilized to channel recurrence amid the active
calls.
ROM (Read Only Memory) – It's situated in the power area of the cell
phone. The ROM is utilized to stack the program of a cell phone. ROM issues
prompt to programming issues in the cell phone.
Slam (Read Access Memory) – It is likewise situated in the power segment
of the cell phone. It is utilized to send and get the guidelines and load
program. It plays out the operation progressively. Slam blames additionally
prompt to programming issues in the versatile phone.The cell phone solidifies
in the event of a lot of utilization of RAM
VCO – VCO makes legitimate recurrence as per the CPU. It is utilized for
sending date, voltage and time to the RF IC/HANGER and CPU. VCO faults.lead to
no portable system.
Organize IC – Network IC situated beneath the PFO and radio wire switch.
In some cell phones, reception apparatus switch is converged with the PFO and
N/W IC is converged with the CPU.
Control Section
Control segment is the most vital part for portable repairing.
Control IC – It comprises of capacitors. Some mobile phones have at
least one power ICs. Control ICs are utilized for power administration. It
takes the power from the Battery and sends it to the different parts of the
cell phone.
CPU (Central Processing Unit) – CPU is the expansive IC of the cell
phone which is situated in the power segment. Some phone having at least one
CPUs. The CPU is the cerebrum of any cell phone.
Streak IC – Flash IC is situated inside CPU. Programming on the cell
phone is introduced in this IC.
Rationale IC – It is likewise called UI IC and interface IC. Rationale
IC controls vibrator, ringer and LED.
Charging IC – Charging IC is situated in the power area. Portable
accuses of the assistance of the charging IC.
Sound IC – Audio IC is situated close to the POWER IC. It controls the
receiver and speakers of the telephone.
RTC (Real Time Clock) – It is utilized to run the time and date in the
cell phone. It runs consistently and upgrades the clock and date continuous.
Loop – Coils in various shapes and sizes are found in the cell phone.
There are two shading blend in curls
1. Blue and White
2. Black and White
The Coil channels and decreases the voltage and current.
Electrolytic Capacitor and Non-Electrolytic Capacitor
Non-electrolytic capacitor-This capacitor is found in three hues – dim,
cocoa and yellow. Non-electrolytic capacitor channels the DC current.
Electrolytic capacitor-it has a positive and a negative hub. It stores
and channels the current. It's bigger than the Non-electrolytic capacitor. It
is accessible in two hues
1- Black and white strip
2-Orange and Brown strip
Organize Capacitor – Network capacitor is a mix of at least one non
electrolytic capacitor. It's additionally used to channel the system. A word
coupler is utilized as a part of the system segment. The Coupler is an
electronic part. The Coupler is accessible in two hues dark and white.
Rectifier Diode – Rectifier diode is utilized to change over AC current
into DC current.
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