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Figure 4
capacitor on the newly installed,[link widoczny dla zalogowanych], preferably on the component pin on the first thin layer of tin. Capacitor loaded pin with a nail clipper cut too long, generally stay 1.5mm ~ 2mm on it. Then hold down the primary capacitance,[link widoczny dla zalogowanych], enabling it to close contact with the board, one hand and a soldering iron to weld (Figure 5).


Figure 5
3.
Check off the work of each capacitor is solid, check all solder joints are cold solder joint, check the capacitor with a multimeter pin is shorted, remove all kinds of sticky residue solder on the motherboard.
experience sharing
1. for the first time for capacitance, the best advance in practice the boards scrapped, more demanding for the first one capacitor, and then you will feel more relaxed.
2. we must do in order to save a little money and reduce the capacitance of the mere selection criteria, that would be wasted, and select the brand of capacitors is the right way.
3. best to damage the capacitor in parallel with all capacitors replaced together, because different brands of capacitors charge and discharge time is different,[link widoczny dla zalogowanych], if only the replacement of part of the capacitor, it may lead to computer crashes and blue screen. Capacitor in parallel to determine whether there is the case, we can observe the back of the line motherboard.
4. welding must be careful. Very fine lines on the motherboard and the close, hitting the cut off is very difficult to access good.
5. electric iron contact element of time can not be too long, otherwise the component may burn out!
6. For the End of the capacitor has been replaced board also pay attention to maintenance, to avoid prolonged power work, and work to make heat.
remind you that there is a certain risk of replacement of capacitors, I hope you be careful!
Figure 1
2. Suction welding device: early electric iron, always easy to do a full of solder, solder with a suction device can be siphoning off those excess solder. Also remove the tin pin capacitor should use it.
3. Replace the capacitor: Select consistent with the damage to the capacitance of the capacitor. The main parameters of the capacitor capacitance, voltage and temperature values. Capacitance is generally μF or pF units, usually selected from the original can be equal to or slightly larger. Pressure value and temperature can be selected and the same original.
suggest that you try to select the brand of guaranteed quality capacitors, such as at the Department of SANYO (Sanyo), Rubycon (Ruby), Nichcon, etc at the Department of Taicon, OST, Evercon and so on. Also replace the visual look of the capacitance of the
4. sandpaper: used to remove the electric iron and the pin capacitance of the surface oxide layer, it would be welding more smoothly.
5. clippers: remove the pin welding capacitor is too long. It also can be pulled up to those left in the circuit board capacitor pin. I replace the actual

following capacitors on the motherboard to replace an example to explain. First of all well prepared and ready to table a more spacious, clean all kinds of unnecessary items, to prevent the soldering iron touch. Preheat electric iron and suction power welding device.
1.
demolition demolition capacitor capacitance is the most difficult aspect of the operation. First contact with warm electric iron pin capacitance parts, pay attention to access to the solder section (Figure 2).


Figure 3
new ones relatively simple capacitor, the author's approach is as follows: first capacitance pin to withstand the side of the solder circuit board, electric soldering iron and then touch the other side of the solder joints, when the molten solder will be able to successfully pass through the pin. Installation level should pay attention to the positive and negative capacitor, capacitor the side bar white flag,[link widoczny dla zalogowanych], this flag is pin pointed to the negative (Note: The pin can also be used to determine the length of long leg is positive, the short leg is negative). Welding capacitor, the capacitor negative pin aligned circuit board (PCB) on the circle painted white or white can that part of the shadow (Figure 4).




Figure 2
circuit boards are now used as a large-scale welding, soldering very small, difficult to melt, so you can first add some solder up,[link widoczny dla zalogowanych], and then electric soldering iron to the more convenient. Hold the soldering iron hand with one hand and hold capacitor, when exposed to molten solder part of the gently shake immediately, and slowly pull out a pin capacitance. Then continued in the same action uprooted another capacitor pin. If you can not suddenly pull out pin, you can turn electric soldering iron contact with two pins, and hand loose capacitor, until the unload up.
2. put the new capacitor
we compare the capacitance replaced with the new capacitor, capacitor top of old processes, and have yellow and black solidified material. This capacitor from the





How to change a capacitor


Capacitor charge is stored in a container, a DC-blocking, pass the role of communication in the schematic on the use of With the fierce competition in computer accessories, manufactured by many manufacturers cut corners on the board of the phenomenon exists, we can often see or hear a lot of cards in use for some time, there will be bulging capacitors or explosive slurry situation. We also warranty the board may choose to repair, but can only have our own security,
tools and materials needed
1. electric iron: 35W or so to power too high may result in board damage. Best to use three plugs, so you can easily prevent electrostatic breakdown integrated chip, if not, you can choose to use residual heat welding power. Also selected the best for the soldering iron tip (Figure 1).
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