The commission process of cell phone jammer should be carried out

The commission process of cell phone jammer should be carried out by the skilled and professional expert. The working principle of the touch screen controller is usually in the low-power mode, the touch screen grounded at one end (Y1). Click on the touch screen, the X1 is pulled low to generate an interrupt request into the working mode, the touch screen controller, alternating X and Y axis X, Y axis coordinates calculated output reference voltage, the voltage on the other axis partial pressure after the A / D converter. XY axis coordinates are mapped to the corresponding point on the LCD, you must set the benchmark, this process is the calibration (or positioning), click on the accuracy of positioning accuracy of the decision, because part of the A / D converter temperature compensation parameters will be drift with temperature change will result in the positioning and use the same measurement value does not correspond to the same position at this time needs to be redefined.
The following introduces the four-wire analog resistive touch screen works, the main technical parameters and design features. The resistive touch screen is mainly composed of three basic structure of the upper electrode, the lower electrode, connectors and other components (see Figure 1). The top electrode: ITO film, PET film. The lower electrode: ITO film, PET film, glass or plastic, above printed rules insulated small protrusions. Connector: Insert the connection between the upper and lower electrodes heat fusion between TTP and the device. Double-sided adhesive: The adhesive force is fixed on the lower electrode and to make on the lower electrode to maintain a certain interval. ITO (indium oxide) film: transparent conductive film. Very thin, transparent and conductive.
Besides two kinds: complete disorder for such failure, we first of all on the touch screen calibration, if how the school is also not allowed, can do the software to try to do a software or malfunction persists, replace the touch screen. Three kinds of local normal failure is the same as in fact two kinds of problem, the repair method is exactly the same, to judge from experience, is generally 99.9% is the issue of the touch screen. : Replacement and substitution of the current market touch screen, there are two principle points, a resistance, a capacitor, we are resistive, so we all resistive touch screen to explain. Now we can see the touch screen can be said is great variety, and different sizes. The shielding and blocking effect of cell phone jammer will greatly influence the satisfaction degree of the customer towards the cell phone jammer.