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5 Best
That analytical thinking . According to previous observations, all of the information collected , use their service experience, combined with the specific circuit works , the use of necessary means of detection , conducted a comprehensive analysis , thinking, judgment , and finally to overhaul the program .
6. Repair
To be exchanged has failed components , welding. For parts can be subjected to technical processing, then try not to use discarded, in order to save costs. Especially for some of the less common elements , it is difficult with purchased components, should be repaired by a variety of effective ways .
For new phone because of defects in the production process on the fault occurred in the vicinity of movement combined with mechanical stress points chassis parts and components , mostly poor welding , Weld and other causes. And drop, squeeze damaged phone failures are common, and damage the phone in the cabinet can be observed obvious mechanical damage, in the corresponding part of the movement should focus on checking section. The water and power supply failure caused by mobile phones have the same point , water phone , if not timely processing ( washing and drying ) , over time, sometimes only a few hours , it is oxidized , severe up to ten several disconnected , integrated circuits and components pin black, white, gray since this time should remedy , according to the site of the water circuit board trace to find the point of failure , such as circuit boards corrode and cause an open circuit short circuit, component damage is more common.
Do not blindly doing experiments and overhaul energized disassemble , blowing welded components and circuit boards, it is easy to make the old man produced the fault did not rule out another new fault , so that the original can be easily repaired phone into failure sophisticated mobile phones.
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