Do you have had a similar experience? The mobile phone is accidentally broken, the screen does not light up, cannot be turned on, and other problems. It may be a newly bought one that has only been used for a few days, or it may be a mobile phone that has been with you for a few days and nights after a year or two. At times like this, cell phone repair may be essential
1. Screwdriver:
When repairing a mobile phone, a screwdriver is needed to open the casing (some mobile phone casings have snap buttons and do not need a screwdriver). Most of the screws used are hexagon socket screws; different mobile phones have different specifications, generally T5, T6, T7, T8, etc., and some models are equipped with special screws, which require a special screwdriver. In addition, you need to prepare some small flat and small plum screwdrivers. When choosing such tools, you can choose the sets A and B, which almost include the shell opening tools for all mobile phones.
2. Tweezers:
Tweezers is a tool often used in mobile phone maintenance, and it is often used to hold wires, components and integrated circuit pins. Different occasions require different tweezers. Generally, one pair of straight, flat and curved tweezers should be prepared for phone repair.
3. Soldering iron:
In the maintenance of mobile phones, the components on the circuit board are often replaced, requiring the use of soldering iron, and the requirements are also high. Because the components of the mobile phone adopt the surface mount process, it were small in size, highly integrated, the printed circuit is fine, and the pad is small. If the soldering iron is not selected properly, it is easy to cause human faults during the soldering process, such as false soldering, short circuit or even soldering of the circuit board. Therefore, it is necessary to use a high-end soldering iron as much as possible, such as a constant temperature and anti-static soldering iron. In addition, some large devices such as shielding covers need to use high-power electric soldering irons, so an ordinary 60W or more thick-tip electric soldering iron should be prepared.
4. Flux:
Normally, use flux during soldering mobile phones is to avoid false soldering or burrs on the surface of solder joints. Generally resisted solder paste is highly corrosive and cannot be used for mobile phone repairs. Pine perfume is very practical (made with thinner and rosin), and the price is cheap, but it needs to be cleaned after welding.
5. Hot air gun:
As one of the most used tools in mobile phone repair, the process requirements of hot air gun are very high. Hot air gun are used for everything from removing or installing small components to large integrated circuits. Special requirements for the temperature and air volume is needed for different occasions. If the temperature too low, the components will be soldered, and if too high, the components and circuit boards will be damaged. Therefore, don't choose a low-grade heat gun because of the price.
6. Tin-absorbing tape:
Tin-absorbing tape is very important in mobile phone maintenance. Thanks to its strong adsorption capacity , if there is too much solder on the board or the solder joints are short-circuited, it is easy to deal with it with a tin-absorbing tape. 1.5mm-2mm width of tin absorbing strip is generally used in mobile phone maintenance.
7. Anti-static equipment:
Anti-static table mats, anti-static wrist straps and anti-static soldering stations can be used to prevent electrostatic damage to mobile phone components, and these devices must be properly grounded.
8. Multimeter:
A multimeter is a multimeter that can measure current, voltage, resistance, crystal diodes, and transistors. A must have instrument for manufacturing and repairing various communication products and other electromechanical device. It is the most commonly used maintenance instrument in mobile phone repair, mainly testing the voltage of key points of each part, the continuity of the line and judging whether the components are good or bad.
In order to test conveniently, it is necessary to prepare a regulated power supply. Which requires adjustable output voltage, output voltage 1-15 volts, current 1-2 amps, with short-circuit protection circuit and current-limiting adjustment, with mechanical There are two types of meter head and digital display, which are used to observe the current change of the mobile phone during operation.
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