Quickly check if the remote is damaged
The general remote control is frequently used and the failure rate is high. When you find that the remote control does not work, most users often cannot easily judge whether the remote control is broken or the receiving part is faulty.
Shenzhen Sinotech gives a method to provide reference for the majority of users:
1. Some remote controls come with a red LED tube self-test. When the button is pressed, the red LED lights up, indicating that the button information has been sent. When a button is pressed, the red LED is not lit, indicating that the button information is displayed. If it is not sent, it is usually caused by the use of dirt for a long time to make the contact poor or the conductive rubber is damaged. It can be removed by an eraser or replaced with conductive rubber.
2. Use a medium-wave radio to adjust to a frequency with no broadcast and low noise. When the remote control button is pressed, you can hear a “beep”, indicating that the button information has been sent, when a button is pressed. , silent, indicating that the key information is not sent, the processing method is the same as above, different remote control buttons, the sound is slightly different, because the code of each button is different.
3. Using a digital camera, point the infrared emitter of the remote control to the lens. When the button is pressed, you can see red light on the viewfinder, indicating that the button information has been sent. When a button is pressed, look. Less than red light, this button information of the remote control is not sent, the processing method is the same as above, these methods are very intuitive, simple and practical, hoping to help the majority of users.