1 thought on “The mobile broadband TV set -top box displays the image, but it does not respond when using the remote control. How to deal with it?”
Ella
The solution to the failure of the TV remote control: 1, the battery, the key conductive rubber causes the remote control to fail, but it can be solved by itself.
The method of solution to battery:
Melect the battery first, pull down the battery, wipe the copper chip of the remote control power contact point, and then change the position of the two batteries to re -re -the position to re -re -the position. Install. If the battery is used for a long time, you can replace the new battery again.
The solution to the failure of the key:
In the remote control to open the aluminum foil paper to wipe the black conductive rubber, wipe off the dust on the surface.
The contact point of conductive rubber with a pencil to restore it to the original black. The principle is that the main components of rubber and pencil are carbon, and the conductivity is restored.
2, crystal oscillator, circuit board, and the TV remote control caused by the light -emitting diodes, you can only replace the remote control. Replace the TV remote control and go to the local digital TV business hall to handle it.
The TV remote control The main components are: battery, microprocessor chip, crystal oscillator, circuit board, magnifying transistor, infrared glow diodes, and keyboard keyboards. The main reasons for battery and keyboard buttons, crystal oscillators cause the TV remote control failure component.
extension information:
The TV remote control to losing the spiritual ears: 1, remote control battery
The TV remote control uses two batteries 7. If the TV remote control fails, because the remote control battery is rarely replaced, first detect the battery, pull the battery down, wipe the copper piece of the remote control power contact point, and then replace the position of the two batteries and reinstall it. If the battery is used for a long time, you can replace the new battery again.
2, the keyboard
The TV remote control button is coated with a layer of conductive rubber on the side of the key, corresponding to the keys on the line board. When pressing the button, the electric rubber connects the two contacts, and the remote control sends instructions out. The remote control takes time for a long time, and the dirt will be attached to the contact point.
It the aging or wear of the conductive rubber. The conductive rubber does not trigger the signal hair color without conductive rubber, which will cause the TV remote control to fail. In particular, the local key to the TV remote control is lost. The main reason is the problem of conductive rubber.
The crystal oscillator is ceramic and is relatively fragile. Once the remote control falls, the crystal oscillator can easily break. The crystal oscillator generates a 480kHz high -frequency oscillation signal. You can find the radio and adjust the radio audio to about 480kHz. The remote control is close to the radio. When the button is keys, the radio has a "da" reaction, indicating that the remote control oscillation is normal.
3, line board
The line boards of TV remote control: copper foil and carbon film. The fall of the remote control can easily cause the circuit board to break and the circuit break. The circuit board breaks, and the remote control keys will all fail.
4, infrared light emitting diode
The detection of the radiation diode in the TV remote control, and can only be detected by a multimeter to detect the diode resistance.
The solution to the failure of the TV remote control:
1, the battery, the key conductive rubber causes the remote control to fail, but it can be solved by itself.
The method of solution to battery:
Melect the battery first, pull down the battery, wipe the copper chip of the remote control power contact point, and then change the position of the two batteries to re -re -the position to re -re -the position. Install. If the battery is used for a long time, you can replace the new battery again.
The solution to the failure of the key:
In the remote control to open the aluminum foil paper to wipe the black conductive rubber, wipe off the dust on the surface.
The contact point of conductive rubber with a pencil to restore it to the original black. The principle is that the main components of rubber and pencil are carbon, and the conductivity is restored.
2, crystal oscillator, circuit board, and the TV remote control caused by the light -emitting diodes, you can only replace the remote control. Replace the TV remote control and go to the local digital TV business hall to handle it.
The TV remote control The main components are: battery, microprocessor chip, crystal oscillator, circuit board, magnifying transistor, infrared glow diodes, and keyboard keyboards. The main reasons for battery and keyboard buttons, crystal oscillators cause the TV remote control failure component.
extension information:
The TV remote control to losing the spiritual ears:
1, remote control battery
The TV remote control uses two batteries 7. If the TV remote control fails, because the remote control battery is rarely replaced, first detect the battery, pull the battery down, wipe the copper piece of the remote control power contact point, and then replace the position of the two batteries and reinstall it. If the battery is used for a long time, you can replace the new battery again.
2, the keyboard
The TV remote control button is coated with a layer of conductive rubber on the side of the key, corresponding to the keys on the line board. When pressing the button, the electric rubber connects the two contacts, and the remote control sends instructions out. The remote control takes time for a long time, and the dirt will be attached to the contact point.
It the aging or wear of the conductive rubber. The conductive rubber does not trigger the signal hair color without conductive rubber, which will cause the TV remote control to fail. In particular, the local key to the TV remote control is lost. The main reason is the problem of conductive rubber.
The crystal oscillator is ceramic and is relatively fragile. Once the remote control falls, the crystal oscillator can easily break. The crystal oscillator generates a 480kHz high -frequency oscillation signal. You can find the radio and adjust the radio audio to about 480kHz. The remote control is close to the radio. When the button is keys, the radio has a "da" reaction, indicating that the remote control oscillation is normal.
3, line board
The line boards of TV remote control: copper foil and carbon film. The fall of the remote control can easily cause the circuit board to break and the circuit break. The circuit board breaks, and the remote control keys will all fail.
4, infrared light emitting diode
The detection of the radiation diode in the TV remote control, and can only be detected by a multimeter to detect the diode resistance.