Antenna Switch
Function: As the processor and voltage signals and to unite the RX and TX signals.
Trouble Shooting:
There is no network
Only one of the only network
Signal fluctuates
At the time of the death signal comes direct hp
Audio IC (COBBA)
Function: As an incoming voice signal processing of RF IC, then amplified and sent to the speakers, strengthening sound vibrations that have been modified in advance by the mic into electrical vibrations then forwarded to the RF IC, run the command from the CPU. At the IC there is also an audio PCM (Pulse Code Module) and EEPROM function to read the code of signals coming from mobile phone operators to meet the IMEI. It also serves to store permanent data such as IMEI, phone code, etc..
Trouble Shooting:
Contact Service
Blank black on the LCD
Signal fluctuates
Sepiker and die Mic
IC CPU
Function: CPU is an integrated set of electronic components and will function in accordance with their respective duties. This component has a very significant task, because this component is the brain and cell phones. In other words, the CPU is a mobile work center and systems.
Trouble Shooting:
Total death (Matot)
There is no network
Restart
Hp suddenly turns itself off
Contact Service
LCD blank
Power IC (CCONT)
Function: As a supplier of electrical voltage for each component according to their needs.
Trouble Shooting:
Total death (Matot)
Insert simcard
Contact Service
Restart
Not charging
Blank black on the LCD
UEM IC
Function: As a supplier of electrical voltage for each component according to their needs. At UEM IC is a combination of Power IC, IC UI, IC CHARGING.
Trouble Shooting:
Total death (Matot)
Bad Response UPP 2002
Error data 2 (Tornado)
Contacts retailers / contact service
Restic phone (IMEI check ???????)
Flash IC
Function: This component is a data storage medium on phones that are not permanent in other words can be changed or added to the data residing on a computer. This tool is the same function as the hard-disk on the computer.
Trouble Shooting:
Restart
Hp suddenly turns itself off
Contact Service
LCD blank
Number of deaths
One of the missing data dati menu
EEPROM (Electrically Programmable Read Only Memory Erase)
Function: As a data repository designed on the phone is not dependent on the presence of electrical current from the phone, because there are special battery or electric current which has been owned, these components typically store data such as factories IMEI1, IMEI2, Security code, the program version and date of manufacture. But for the latest release of the Nokia brand of mobile data contained in this component can not be changed.
Trouble Shooting:
Total death (software)
MCU (Master Control Unit)
Function: Existing data on the phone located in the audio IC, data is permanently or have been from the factory, such as: mobile phone version of the program, IMEI, year of manufacture, and phone codes.
Trouble Shooting:
Total death (software)
IC RAM
Function: This component is basically a data repository as well, but only temporarily, because this component is how it works depends on electric currents contained in the component. If the phone is turned off so that direct the data contained in the component will disappear by itself. These components are intimately associated with CPU activity. The greater the capacity of RAM it will be good Dula performance of the CPU, but if the RAM is damaged then the CPU can not work.
Charging IC
Function: This component will work automatically when the charging to work just to fill the battery voltage is controlled by the CPU through the controller IC.
Trouble Shooting:
Not charging
Nyedot batre
UI IC
Function: As instructed by the data controller on the CPU IC Vibrator, Buzzer, Led and behave as automatic switches in the phone.
Trouble Shooting:
Number of deaths
Nothing shakes
Ringing off
Led dead
IC PA
Function: As the signal voltage controller and the amplifier end of the TX signal will be emitted through the antenna switch components contained in the phone.
Trouble Shooting:
Then loses signal out
Not transmit
Finding network
Nyedot batre
Total Death (Matot)
RF IC (HAGAR)
Function: RX signal controllers (incoming) and TX (out), so that each part can work properly. This component consists of several parts, namely: IF, mixer, oscillator, detector, encoder, decoder, AFC, Tone Frequency and oppressive.
Trouble Shooting:
Finding network
Exit one network
Total Death (Matot)
Restart
On the LCD Blank White
IC VCO (Voltage Control oscillator)
Function: As an oscillator / frequency generator that will be sent through the TX (transmitter) and the frequency of entering through the RX (reception) to remain the same as those emitted. In addition, the device also functions as a regulator of voltage pulses of RF Signal Processor.
Trouble Shooting:
Only one card is used bias
For a network (serching)
Then loses signal out
LCD (Liquid Crystal Display)
Function: As a tool that will display all the activity and cell phones, as a communication medium to read and write in your phone.
Trouble Shooting:
Empty
Article messy
Rupture
Button
Function: As an input device that provides data to the CPU for processing and telephone orders will be sent to the related components in the mobile phone.
Trouble Shooting:
Empty
Article messy
Rupture
Battery
Function: as a source of electric current needed to deliver electric current on the mobile phone. Battery for mobile phones there are several kinds: Nickel-metal hydrate (NiMH), Lithium-Ion (Lion), and Lithium-Poly ¬ I-RI (LiPoly)
Trouble Shooting:
Ngedrop
During the call, direct hp die
LCD blinking lights
Charging failure
