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6 Remove the shield cover bottom two screws , sliding down the shield , and then lifted up the shield , you can remove it.
Note: This is good to remember the two spirals its installation location, to prevent the screws in the wrong position , causing serious consequences . When the screw is too long , it will tighten wear LCD screen !
7 . Internal structure of a liquid crystal display as shown below, there are four circuit boards , motherboards , audio processing board , backlit pressure plate , button control panel. Before the demolition , the last hand contact with the water pipe or other grounding device to prevent electrostatic damage to the body 's LCD monitor.
8 The figure is high pressure liquid crystal display panels , LCD backlight lamp used to generate the required 2000v high voltage , which is the so-called black box, high voltage coils , high voltage coil diameter generally very thin , high- voltage work environment, the failure rate is highest , and its accessories are also the most difficult to buy.
We have to overhaul the elements are shown below inductor l1. The reasons for this failure may be the problem of the production process , in the welding installation , no wire wound inductor coil do to paint handling , and direct welding. Because the paint is an insulating material , non-conductive , the real point of welding wire is disconnected only at the point, so that led to the use for some time , there will be no high-pressure situation , causing no image is displayed. .
9 inductance l1 with a knife on the two pins gently scrape paint insulation to expose theµ}red copper layer , the greater the exposed area , welding more solid, more solid .
10. Upon heating electric iron in one hand and solder wire, soldering iron in one hand , the inductance of the two pins welded solid.
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