1. Remote control does not respond
(1) Such a situation is generally damaged because the wireless remote control is used by a strong impact or fall, of which the most vulnerable to damage in the wireless remote control is the crystal oscillator, and the solder joint near it. In the process of using the wireless remote control, if the remote control is hit hard, first of all, we have to check whether the crystal vibration is broken, should be replaced with the same model of crystal vibration, individual models are particularly difficult to match, so we have to carefully open the crystal shell, weld another pin to re-weld the circuit, and repair the welding off the solder joint.
(2) Launch tube failure
In general, this situation is relatively rare, after encountering this situation, we can use the detector to judge, and then take a good pipe to replace.
(3) The battery is exhausted
In order to avoid affecting the normal work, it is best to check whether the wireless remote control has electricity before using it.
2. The button does not respond
First use the detector to determine which keys are ineffective, we can use the pointed tweezers to touch the contacts of the keyboard, at this time we can find which keys near the line open, find the fault line, tin with one of the strands of wire, gently scratch the end of the line, solder the end point with alcohol solder, and then solder the tinned wire.
Generally speaking, the router is not remote control, you may refer to the set-top box, the remote control is not working first to confirm whether there is no power, and then confirm that the indicator light on the remote control is not bright. If you make sure the remote is powered, it's not broken. The infrared sensor on the receiving device is broken.