We've had small welding, two-point core skills, and we've been working on high-frequency handset maintenance on w. W. W. W. W. W. W. W. W. W. On cell phones for the current period -- interconnector decorating, from inner connection base recognition to sub-season/mother seat decomposition, anti-fashion welding techniques, to failure repair, all process debunking, new hands working on this plastic piece
I. Basic cognizance: distinguishing the sub-seat & motherhood of the inner joint first and understanding the structure is good
The inner constellation is the core interface between the main plate and the line, which is responsible for signal transmission, first-hand recognition of the structure and installation relationship, avoiding confusion of operation:
In day-to-day maintenance, the interconnector is vulnerable to the fall of mobile phones, erosion of water, detached, detached, welding problems of human operation, minor detached, non-replacement and direct repositioning; serious damage requires replacement。
Annotation of the inner seat & parent seat structure
Core focus: sub-season (lined end) disassembly, cryogenic drum pack + deformation
Subseals are attached to the soft line, which contains plastic components, high-temperature drums and heavy deformation, which are the core difficulty in dismantling them, and conduct the whole process to control the temperature at 300°c, so that welding oil is released and separated and equipped with two steps of skill。
Sub-seat disassembly: 2 ways to keep blowing the wind
Presumptuous preparation: full welding oil on the line, wind rifle at 300°c (with a cyclone gun at 60-80°c) and high temperature leading to a lined drum pack。
Method one: thrust detachment: the windguns are evenly welded, and when the tin melts, the seat is slowly pushed down with a twig; it is suitable for the conventional length, evenly thrust at the time, and it avoids staggering. Method ii: dismantling the wind: when the windgun is welded to tin melt, the windgun is removed and the seat is quickly picked up with a hammer; it is suitable for a long strip seat to avoid the continuous winding that leads to thermal deformation of the plastic, which is the most recommended method for newers. Avoiding pits: if the wind is caught while the heat continues, the seat and line will be burned directly。
Sub-seat installation: 2 welding methods, blowproof + tin protection
Windgun welding: 300°c remains the same, the wind speed (to prevent the seat from blowing up) is significantly lowered, the seat is precisely aligned, the wind gun is evenly blown and welding is done when the tin melts; iron welding: after the seat-to-seat, welding oil is filled with welding oil, iron is coated with a small amount of tin so that welding is done by foot; welding is suitable for fine pairing and the welding is stronger. Lenzid solution: if you're in the middle of a cassiterite band, you're in the middle of a cassiterite band, you're in the middle of a iron bar, you're in the middle of an iron bar, and you're in the middle of a blade。
Sub-season decorating map
Iii. Step-by-step exercise: mother seat (main end) disassembly, high-temperature tin + weld point even
The parent welding is on the main plate, the main plate is hotly dispersed, 300°c cannot melt tin, and the dry temperature is set at 380°c. It is also split down and packed in two steps, focusing on the issue of tin parity on the main plate, avoiding welding and palettes。
Seat removal: 2 methods, more efficient for scrapping heart
The removal of the parent is recommended to operate from the waste master plate (to avoid damage to the board). Welding oil must be discharged at 380°c:
(b) pressure breaking: wind guns are evenly welded at the mother's seat, after the tin has melted, slowly pushed from the edge to the mother's seat and pushed it down from the main plate's welding; wind extraction: immediately after the tin has melted, the wind is removed, the mother's seat is picked up quickly, the cosmopolitan is used to avoid continuous heat-burning around the main plate。
Emplacement of the parent: core on "small up " , anti-welding / lysin / zirconium board
The greatest difficulty in the installation of the parent seat is the imbalance in the main plate welds, which can lead to a lower side of the seat (pastboard), a lower welding, with a focus on tin techniques, and a precise alignment of the welding。
(b) epidemic aided tin: looking for the same width, with both ends of tin running over the weld, with a light blow, so that the tin is evenly attached to the welding, with a quick removal of the electric sense; suitable for the new hand and evener for the upper tin. (b) new seat: probably empty welding, which requires a small amount of welding, welding, retwelding, retwelding, excessive reticence, etc. Quality welding: seat-to-swilder, 380°c wind-guns are evenly welded, siphoned with light pressure on the edge of the seat after siphoning; welding is processed even with a siphon belt, while overwelding is softly smooth when it is not fully condensed, the amount of tin is measured as “not small, full of round”. Weld detection: 1 side observation, with cassiterite closely connected to seat-leading, with no welding in a gap; 2 swinging the seat with a twig, and welding solid。
Installation of tin + welding figure
Iv. Coast rehability rehability questions, quit arrangements
Question 1: welding welding / shake
There is no need to remove the seat, weld the welding oil + a small amount of cassiterite, welding with iron, or windguns with low temperature, to complete the tinting。
Question 2: apple battery blast dimple (showing power 0%)
Battery amplifiers are exposed to the battery because of multiple dents, which result in poor contact with the battery and light pressure of the middle of the shrapnel with a stabbing knife, so that the shrapnel can come up to the inside and resume contact, and the sharp edge of the knife can be easily punctured。
Question 3: intralink single-leading damage, no need to replace the whole
Weld oil + cassiterite will be fully welded at the point corresponding to the fault seat. Green oil / welding oil will be worn around the pointer because there are no plastics that are stable and welding will be solidified with a purple light light。
Map of common troubleshooting within the constellation
V. Summary of actual exercise: 300°c, mother 380°c, weld oil is to be released throughout the course; plastics are torn to high temperatures, lined to drums, and decomposition is to be blown up to the wind; small amounts of upper tin are to be flat, taboos are to avoid slabs / welding; even tin is tossed, blades are to be scraped and welded are not to be tuned to the slurry; when all the pieces are to be removed, the twirl is to be swayed to the level. Next-period advance
In this period, we've got a complete detachment and failure repair for the inner joint, and next time, wawa wanway will talk about another high-frequency skill in the maintenance of the main panel -- removing the shield, teaching you how to safely remove the shield, avoiding damage to the perimeter of the main plate, and continuing to unlock the dry goods
If these inner-linking techniques are found to be practical and attention is paid to our account number, wigand wigand, they will be followed by continuous updating of the whole process of repairing the master panel of the mobile phone, from basic skills to complex troubleshooting, with a new handle. If there is a need for systematic learning about mobile phone maintenance, or if you wish to obtain advice on the master board of used exercise, maintenance tools, or to contact us through the counter, we will provide you with professional guidance and accompanying learning support。
What more difficulties did you encounter when you were working on the joints? Welcome to the comment section. We'll answer it one by one
