What should I do if the touch switch fails, and the causes and solutions of the touch switch failure

If your phone's keys are out of order, we recommend you:

1.If you cannot use the back button to go back to the previous interface or exit when running a program, it is recommended to click the home button to return to the standby interface and try to re-enter the program.

2.Turn off your phone and restart it.

3.If the back button, menu button, recent application button, and home button of your phone are not available, it is recommended to uninstall and delete the recently installed software.

If the problem persists, it may be a problem with the internal hardware, it is recommended that you bring the three-pack certificate of the mobile phone and send the mobile phone to the nearest Samsung service center for the engineer to check the machine.

If the touch screen of your Samsung phone is not sensitive and malfunctioning, it is recommended:

1.Check if the phone has a film, if there is a suggestion to cancel the screen film and try it.

2.If the touch screen of the mobile phone is completely malfunctioning, it is recommended that you restart the machine and observe it again.

3.Try to update the system version of your phone (Note: Please back up the data in your device before upgrading).

4.If it doesn't work, back up the data in your device (contacts, text messages, **, etc.) and try to restore factory settings.

If the problem persists after the above operation, it is recommended that you bring the machine, purchase invoice, and repair card to the local after-sales service center for testing.

If the touch switch fails, you can try the following methods:

1.Restart your device. Sometimes the device needs to be restarted to re-recognize touch input.

2.Clean the touch panel. Touch switches may be covered in dust or oil, and cleaning them may restore their functionality.

3.Check your device settings. Make sure the touch switch is enabled in your device's settings, or make any necessary updates or software fixes.

4.Check the touch switch hardware. If none of the above methods can solve the problem, it may be a hardware issue. Send the device to the manufacturer or repair professional for more in-depth inspection and management.

It should be noted that before any repairs are made to the device at any time, please back up all your data to avoid loss of Qi Chong's information.

There are many reasons for the failure of the touch switch, the shed code may be caused by the poor contact between the touch and the lifting point, and the power supply needs to be cut off, and then the contact can be repaired by wiping it clean; It may be that the circuit board is burned out and the circuit board needs to be replaced, it is recommended to contact a professional for operation; It may be that the switch is stuck, you can disconnect the power supply, and then remove the switch panel to see if there is any foreign object stuck. Ruler Bi.

Precautions for the use of the equipment:

1. The touch switch cannot be used, it may be that the electric switch is not opened, and it can be checked.

2. The touch switch needs to be fixed with screws, after removing the panel, save the screws, the third-party screws may not be compatible with the equipment.

3. Different brands of touch switches have different wiring methods, and you need to pay attention to them when purchasing.

4. The chip of the touch switch is the core component, and it is recommended to choose products produced by large brand manufacturers, which have quality assurance and high sensitivity.

5. There are different installation methods for touch switches, which can be selected according to the needs of use.

This is obviously caused by high-frequency radiated radiation interference from switching power supplies. has done it over and over again. This is often referred to as electromagnetic compatibility.

In order to save costs, most of the switching power supplies on the market do not do EMI processing, so the interference is very serious. You can buy a high-end switching power supply with better performance.

If you solve it yourself, you may not be able to solve it, but you can start below. zhiclc filter, ie. , x, y capacitors, and common-mode inductors can be added to the switching power supply feeder. Filters, channel wave capacitors, and multi-stage LC filters can also be added to the output.

Note here that L is the inductance of the core. Another key to deal with is a high internal frequency transformer, which can be encapsulated in copper waves, reducing radiation and increasing shielding. In addition, the switching capacity power supply can be sealed in a metal box, which can also play a good shielding role and reduce the interference of radiation to the surrounding industrial computers and chips.

This is obviously a program crash caused by high-frequency radiation interference from the switching power supply. I've tried it over and over again. This is often referred to as the electromagnetic compatibility problem.

In order to save costs, most of the switching power supplies on the market do not do EMI processing, so the interference is very serious. You can buy the kind of high-end switching power supply that will work better. If you solve it yourself, you may not be able to solve it well, but you can start from below.

CLC filtering can be added to the inlet line of the switching power supply, that is, X capacitance and Y capacitance and common mode inductance. You can also increase the filter capacitor and add multi-stage LC filtering at the output end, note that L here is the inductance of the core. Another key thing to deal with is a high-frequency transformer, which can be wrapped in copper waves to reduce radiation and increase the shielding layer.

In addition, the switching power supply can be sealed in a metal box, which can also play a good shielding role to reduce the interference of radiation to the surrounding industrial computers and chips.

Add 4700 microfarads and capacitors at the output and the input of your control board.

A resistor of about 10 ohms is connected to the power input end of the touch circuit, and a 220 microcapacitor is placed in front of the resistor, and two are placed in the back, and the resistor can also be replaced with an inductor.

I've helped you post on the Big Bit forum for your question, just wait for that master to provide a more detailed answer.

Solution one: Repair the button.

If the socket button or switch button is broken, it may be caused by an overload of the current used, and some tools can be used to fix it. First, with a screwdriver.

Or a file. Disassemble the panel of the switch or socket, then find the brown and red wires inside, solder the broken brown wires to the terminals of the red wires, and finally reinstall the panel with screws.

Solution 2: Replace the switch socket with a new one.

In addition, if you don't want to be so troublesome, you can also throw away this socket with a button and replace it with a new one. After all, the ** of the socket is not very expensive. But whether it is to replace the switch or socket, the fixed replacement process is more troublesome than the mobile one, if you can't do it yourself, it is best to ask a professional electrician to come to the home to change.