笔记本液晶屏排线折断的修复（Repair of broken wire of notebook LCD screen）

笔记本液晶屏排线折断的修复（Repair of broken wire of notebook LCD screen） 笔记本液晶屏排线折断的修复(Repair of broken wire of notebook LCD screen) The work status of the book, the indicator board, cable The so-called cable, as the name suggests, is to put a lot of root line side by side, neatly arranged together, play a role in the transmission of data signals, while the use of cable can also make the circuit looks clean and beautiful. Believe in playing the "books" enthusiasts mostly played the desktop, the data line structure and desktop hard disk, floppy drive, such as CD-ROM, but cable is a plastic film intermediate by very high toughness with a plurality of thin metal strips, and the hard disk data line is more lightweight than however, with this antique books or below. A single strand of wire used early In general, the cable has high toughness, not easily broken, but because it is second-hand machines have been used for several years, the LCD screen is not open and closed many times, coupled with the use of improper methods, often in the same direction and activities of LCD screen if the possible fault, if a broken, and two pick up may be broken too much, not to pick up the point only to replace the new, and has been used by a number of years of second-hand notebook accessories, the early did not produce, want to buy the same type of cable is unlikely. In fact, there are two kinds of notebook computer cable, a cable to the graphics part from the screen, a cable from the screen control circuit to the TFT panel, the two lines are a transmission display content, which is different from the screen of the cable to the graphics part is the entire screen display signals. The control circuit of these signals are divided into each pixel to display the content in the transfer to TFT panel. If any of the cables are out of order, the display will be abnormal. After knowing the structure of the cable, the next step is to turn on the laptop and find the location of the cable. Tool preparation: electric iron (high quality tin wire, rosin, etc.), digital multimeter, art blade, 703 or 704 silicone rubber (sealed line, output high pressure mouth things, appliance maintenance department can find), etc.. Tools used The major brands of notebook cable color and shape may not be the same, but the structure must be the same. LCD screen and the motherboard connection, most of the cable in the LCD screen below, we have to take the notebook computer to disassemble, to see the cable. Different brands, models of laptop removal methods are almost the same, you can first look at, look at the notebook casing is composed of several components. Generally speaking, first find a piece of soft cloth pad on the table at the bottom of the notebook, put a few screws at the bottom of the unloaded, and then put the notebook upside down on, open the LCD screen, then we can put the "books" of the front panel and the keyboard removed, note that the mouse and speaker before the panel, between them and the motherboard are connected by cable with plug, the keyboard is no exception. Carefully remove the cable from the motherboard before you remove the front panel and keyboard separately. At this time we can see the "books" of the motherboard, the motherboard into the cable from the LCD screen are generally two, most wide that a (about 4 cm wide) cable is the transmission of data signals, is that it has broken the place! The other is for LCD backlight. Some laptop motherboards to the LCD screen is a line, but the LCD screen signal and control backlight signal with a cable transfer it. So long as the two parties on the cable to move, marathon, while pulling upward side to pull the bottom end of the interface, it can be pulled out of the line. After finding the cable, but how can you confirm where it was broken? First of all, to use the observation method, first with the naked eye to see the cable, where there is a significant crease, the cable is broken, all caused by creases. With the aid of high-power magnifying glasses, the light is observed under strong light, because the lines are thin, The broken place should be visible. After finding the suspect, in order to ensure the safe, we will use digital multimeter for further diagnosis". Ordinary pen certainly not too thick, we are respectively connected on the pen needle, with 200 ohm resistance profile, one just suspected of breaking point on both sides with a needle pen instead of gently on the cut cable layer has toughness measurement of thin films, the resistance that infinity must break here, find the breakpoint later, we will use the blade gently scrape that thin film with toughness, this step must be careful, because the line is too thin, too thin, do not put such a thin cable guaduan, not in the wire scraping holes, to expose the metal luster prevail. Shave after prepare welding, scraping blade a rosin powder on the line just scraped on (with help), and the electric iron heat, the power plug of the electric iron out (this step must be done, otherwise it is static the motherboard burn can not find me!) And the use of waste heat, the iron head slightly with a little solder, fast and loose powder in cable local wipe, and then the vertical lift cable disconnect place is welded, remember, speed must be fast, otherwise the cable was burned, if again not more than a few times can it is best to find a cable, waste DVD or mobile phone to do good and practical welding technology. After welding, digital multimeter without error detection, with 703 silicone rubber in the solder joints and the surrounding and the back is coated with a layer of about one or two hours later when the surface natural dried repeatedly coated 1-2 times, dry by 703 silicone rubber elastic to characteristics after welding fixed point, to use in the future will not open again. When the silicone rubber is completely dried, it is ready to be tested. This step I will say no more, is installed in accordance with just the demolition of the opposite order, hard for a long time, the test results of their labor, I believe that as long as you follow the steps to do, will be a success.