To determine if the wireless receiver is broken, you can perform the following steps:
1. Check whether the receiver is properly connected to the power supply and device.
2. Check whether the indicator of the receiver is on. If it is not on, the receiver may be faulty.
3. Try to connect other devices. If other devices cannot be connected, the receiver may be faulty.
4. Try to use another receiver to connect the same device, if the other receiver can connect, then the current receiver may be broken.
5. If the problem cannot be determined by the above steps, it is recommended to contact a professional technician to repair or replace the receiver.
Once it is determined that the wireless remote control receiver is not working normally, it can be distinguished from which part of the circuit the fault comes from in the following way, that is, from the high-amplifier, super-upgrade circuit or the amplification and shaping circuit.
1) For the overhaul of the overlift circuit, you can first check the DC voltage of the transistor, if it is abnormal, check the DC bias circuit or the transistor itself. After the DC bias voltage is normal, check the AC feedback circuit again, and it is best to use the replacement method to check the chip capacitor.
If the wireless receiver doesn't pick up the signal correctly, it's broken