The Basic Tools Used in the Maintenance Process

1 - Set Screwdrivers: which is used in the maintenance process, which mainly consists of two types: The first type is called (asterisk) and is used to remove and install most types of phones. The second type is referred to by name (fork) is used in devices Alierkson in particular.



2 - Iron welding: a soldering iron to a normal part with a thin tapered welding sensitive parts inside the motherboard.




3 - jfet: a tool to pick up the parts and controls.

4 - Afumitr: It is to measure the internal circuits of the device and select the damaged ones.

5 - Dry Spray: is used to dry some parts that are of water, this works on the Spray evaporation of water from internal parts.

6 - Hot Air (hot air): It is a fund out of which two parties, the first part has the hose out of it, hot air is used to melt some parts of the painting Wefts Interior, for the minute parts, such as some types of IC, while the second party come out of it Iron Welding especially used in the re-connect these parts to the painting of the Interior.

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Common Faults

Of the common faults in the hardware, and access to water is the internal parts of the phone, and when you receive one of the devices in this case, the maintenance technician to dismantle all parts of the device to an accurate disclosure of it. Where it starts first draining these parts by hot air (A_i_oar) or by dry spray (ACAI).

After drying these parts, is detected on the plate interior to make sure there are no electrical circuits or capacitors were destroyed, and in case of damage to any part thereof, should be replaced by another, are then grouped the device again to make sure the integrity of his work.

Disadvantages of the common faults of the battery inside the phone, and usually results from use ... Unfortunately, the disadvantages of the battery requires replacement by another, because it can not make any maintenance to them.

Defects due shipping into the phone as a result of the entry stream is not compatible with the internal parts of the phone, sometimes showing some flaws in the shipper, the user extraction private party charger (jack) and connect the charger other unusual (Adaptor) leads to the entry of electrical current high or low to painting interior parts, which affect these parts.

In the case of an imbalance within these circles, can overcome this problem by doing some internal connections - called Bridges - with the objective of avoiding damaged parts within the interior painting, or change the Socket in the case of shipping damage.

Energy or stop the network:

When detected on some devices that are showing the separation of defect energy, or the separation of the network, is detected on the internal parts responsible for the delivery of energy to the device or parts of the network.

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Some Problems which is Appear on Siemens Mobile

Defects that appear on the Infineon devices:

1 - defect network: The network in the IC requires changing the network or the IC Internal antenna, Antenna Switch, RF.

2 - electric power-defect: Change IC within the electric power-painting interior.

3 - headset flaw: one of the fundamental flaws that appear on the devices Alsimitr, and it is a defect in the Department of resistance to the sound or headset, and requires changing the handset.

4 - Bell defect: In order to change the welding an iron bell, as it is connected to welding panel of the Interior.

5 - Flawless screen: This requires changing the device screen, or defect of the Display and requires a hot iron to change the air Hot Air.

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Some Problems which is Appear on Ericsson Mobile

1 - defect network: the TIC network and requires a change Ic Alontna network or external device or there is something wrong or RF Antenna Switch.

2 - electric power-defect: Ic requires a change within the electric power-malfunction interior, or may be a defect in electric power-cycle.

3 - headset defect: The defect in the Department of resistance to the sound or change the handset, where it can be only drawback for the headset at the seams in this case, change the speaker.

4 - Flawless microphone: Change the microphone.

5 - Flawless Shipping: This is a defect in the Department of lading or shipping in the Socket.

6 - Flawless bell: requires a change in welding an iron bell as it is connected to welding panel of the Interior.

7 - a defect in the SIM Card: which is installed on the interior painting and soldering iron should be used to install, some of which will be separate from the painting of the Interior, and the galaxy is a base from which SIM Card.

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Some Problems which is Appear on Nokia Mobile

1 - defect network: The network in the IC and requires changing the network or change the IC or RF switch Antena, Antena or internal.

2 - Power fault: Climate IC within the electric power-painting interior.

3 - headset defect: The defect in the Department of resistance to the sound or the speaker, where it can be only drawback at the seams on the headset, or require the defect to change the speaker.

4 - Flawless microphone: Change the microphone.

5 - Shipping defect: a defect in the Department of lading or shipping in the Socket.

6 - Bell defect: In order to change the welding an iron bell, as it is connected to welding panel of the Interior.

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A Detailed Explanation of Some Types of Motherboard Components to Illustrate the Places - Part # 3

The front panel for the Samsung N188



1 - Socket loudspeaker: It is the function to send audio to hear the degree of resonance.

2 - BIOS CPU: failure causes loss of power and the screen and the network is the direct reception of the electrical circuits that help to release energy for the device and also in the reception frequency of Foreign Affairs of the network.

3 - Socket Keyboard Keypad Socket: fault or the delivery of bad cause loss of energy, and the sound of the transmission and reception.

4 - major operating unit of the network: a fault causing loss of parts of the network.

5 - malfunction of one of these parts cause the loss of transmission and reception, which play a softener for the network.

6 - Key Energy RF Power Switch: the malfunction cause loss of the network, which is the primary key that serves as the reception outside of the internal frequencies derived by the device.

7 - The key antenna Antenna Switch: malfunction by causing loss of transmission and reception of the network.

8 - filter RX: malfunction by causing a loss in transmission and reception.

9 - filter DCS RX, transistors DCS HF: failure of one of these bad box or a receipt for them one of the seams may affect direct impact on the frequency transmitters and receivers.

10 - Filter: malfunction cause a loss in the network, and requests for RX IF, which is the filter function of the network.

11 - signal processor RF: malfunction, one of the parts of Hamath or failure by causing loss of signal transmission and reception.

12 - the memory module: malfunction by causing loss of power.

13 - Socket card SIM: malfunction causing the lack of identification card SIM, are normally the result of non-contact parts of copper to the SIM card in this case the parts of the copper is connected to the card.

14 - This causes loss of defective parts shipped Card.

the front Face of the device Pansonik GD90




1 - Plug External: Socket is shipping which is the function of the delivery of the freight services of the Interior.

2 - Transistor OSC: malfunction by causing the stop the stopwatch, or may also be unpacking a painting of the interior seams.

3 - temperature of the battery: It is the function of the temperature scale of the battery.

4 - (+) Battery.

5 - A set of filters the filter function of the network, and one of the malfunction or unpacking a Hamadtha to cause the loss of the network.

6 - Player vibrators Viberator Driver: malfunction by causing no vibration.

7 - Antenna Socket Antenna Socket: function as a receiver and transmitter, and by causing loss of holidays in the network.

8 - Battery backup: It displays the functions of the timing and data on the numbers, and malfunction do not appear to cause the timing.

9 - Bell Buzzer: malfunction by causing a malfunction in the ring, and it is installed on the interior of the painting Belhmat tin, and any break in these seams may affect a direct impact on the bell.

10 - Vibrator capital Viberator Tips: Connect to a bad cause no vibration.

11 - player signal RF, (-) Battery: malfunction one of these parts cause the loss of a malfunction in the network.

12 - Unit Intgel main CPU: the malfunction cause a malfunction in the energy, the loss in the network, the loss of the screen, and is the direct reception of the electrical circuits that help to release energy for the device to perform its functions.

13 - memory copies of the software Version Rom: failure or not connected to cause a malfunction in the energy loss in the network and the loss in the screen.

Socket Energy SIM: contact replete causes the appearance of (please insert the card) are normally the result of non-contact parts of copper to the SIM card in this case connect the parts of copper to be connected to the card.

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A Detailed Explanation of Some Types of Motherboard Components to Illustrate the Places Part - # 2

Interior Motherboard of the C35



1 - Introduction antenna plug: It is a chip connected to the motherboard and connected to the internal Alantna of Foreign Affairs.

2 - The key to control frequency of the network: and disrupted causing loss of network or device is switched off when the transmission.

3 - The key antenna Antenna switch: the malfunction cause loss in the search for the network.

4 - energy control RF: malfunction cause a loss in transmission.

5 - a multiple energy RF: malfunction cause loss of the network.

6 - IC Power: malfunction cause loss of energy which has suffered in the efficiency of the device.

7 - Crystal 13 MHZ: malfunction cause a loss of energy.

8 - cause the loss of these parts in the network.

9 - Socket card SIM: Show cause a bad connection message (Please insert the card).

10 - signal processor RF: The malfunction cause a loss in the network.

11 - Christalp Time: defective and cause a stop in an hour time.

12 - The RF: malfunction cause loss of signal, network, lack of communication.

13 - a failure of one part causes a loss of energy, and malfunction in the search for the network.

A. Flash Memory Flash Rom.

B. Random access memory unit RAM.

14 - BIOS: malfunction by causing loss in the network, power is not recognized on the card SIM.

15 - IC Power: a source of energy and cause the loss of the malfunction.

Interior Motherboard of the V2688



1 - RFU 106: He who controls the energy, the malfunction cause loss of power when the transmission or transmission.

2-Display panel socket: a malfunction cause loss of the screen, the sound of the speaker.

3 - power indicator RF:

4 - The transistor repeater function, and often gives 2 .. 57 volts and any frequency that causes a loss of biophysical.

5 - Christalp at Home: disrupted causing loss of energy.

6 - Socket card SIM: the delivery of a bad cause is not recognized on the card.

7 - Vibrator driver operator vibrators: the malfunction is causing the vibration stopped working.

8 - Models headset: Delivering bad cause of failure to transmit the sound.

9 - Models Vibrator: Delivering bad cause not vibrators.

10 - This group to be a circle and usually give 5.6 volts and anything that causes loss of energy.

11 - IF IC, malfunction cause a loss of power and the network.

12 - bad delivery of any part of the battery causing the loss of energy.

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