Рет қаралды 300,806
(Correction: This variable capacitance value unit is pF is not uF 喔! But the difference is a lot, the subtitles play too fast
Thank you for the following message reminder: The original number C9 on the circuit does mean variable capacitor, and even that is the inductor.
An LC resonant circuit (oscillation circuit) consisting of a variable capacitor and an inductor to change the frequency adjustment)
Note: (sometimes it seems simple, but there are many corners of the eyebrows) (safety first)
1. First of all, we must first assess whether we have the ability to replace it ourselves. Otherwise, it will not be worth the loss.
2. If the two are originally good! Remote control! Remote control, but can not be used at the same time, it may be the host receiver itself, not the remote control problem! It will not be busy!
3. Make sure the battery is fully charged before testing! (Renew the battery and test again)
I won’t be busy, I’m going to swear! (Because the voltage is too low, it will affect the remote control distance or frequency)
The variable capacitor is only a dozen or twenty pieces, in case the person is just outside the door.... XD
Right! Now I think that when I test, people have to be indoors! Otherwise, it’s funny to be locked out of the door.