It plays an important role lcd display in the rotating buffer memory

 Two types of motor failure by rotating crane crane pictures, directional control valves, brake valve, relief valve, overload, find fault, it needs to investigate the hydraulic system diagram gradual effect of combining different parts. Examination found that Lcd display modules the rotating motor is working properly, no abnormal sound or heat, can be reversed, analysts believe that is good. When the rotary directional control valve, the pressure valve is a check valve to the left to the right side of the rotating motor through the opening stroke, the left and right side is normal. Check the pressure gauge, the working pressure is normal  work and no vibration and noise, so that normal rotary valve. Brake brake, parking Serial display modules can be stopped, brake, and has nothing to do brake. In the inspection found no problems, and finally check the battery. It plays an important role in the rotating buffer memory. Cranes and hydraulic accumulators and batteries, has two main functions, the first time the engine is running at high speed within a short period of time, the energy storage device, thereby reducing the number of hydraulic pumps, saving engine power.

Tsingtek lcd display one each side of the screen , on the back of the display has a backlight

LED display and LCD display is actually its the same, are the LCD is also no difference. The main difference is that makes the screen backlight to produce different light sources .
Ordinary LCD CCFL light source is used , that is, the cold cathode fluorescent tube ( look similar to the copy in the scanning lamp ) , one each side of the screen , on the back of the Graphic LCD Module display has a backlight , the fluorescent material composition, You can make light evenly distributed on both sides of the entire back of the screen , so that the whole screen evenly lit. However, because of technical limitations , such as the display brightness is not completely uniform , but it is difficult to find , but also a certain lamp life , a long time will be yellow .
LED LCD screen using a LED light source , which is the light-emitting diode ( just like on the red blue Lcd display modules lights as appliances ) . Such very low power light emitting diodes , lamps and because it is not composed of one array can be uniformly distributed in the back of the LCD screen . Good brightness , the backlight more evenly. Such displays can be thinner and more energy to do , LED life span longer than the life of CCFL , hair color stability is not easy to yellow.
Remember the two display screens are used as there is no difference. But just different light backlight