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In the case of ensuring that the battery is electric and the battery contact is normal, if the intercom cannot be turned on, the first thing to do is to check whether the insurance tube (F500) is burned out due to the large current. If the insurance tube is normal, the intercom cannot be turned on, ......

Most walkie -talkies have fault self -test function. When the alarm of a beep is issued when the power is turned on, it shows that the intercom was found to find problems when the self -inspection was turned on. The problems that can be found in the intercom self -inspection include: 1. There is an......

Dialogue error. The frequency of writing is beyond the frequency range specified by the intercom or the selected model does not match the machine.

Check whether the PTT button is stuck, and there should be a slight "click" sound when pressing PTT. If it is still unable to solve the suggestion to contact local dealers or return to the factory.

Discontinue intervals are often found at the critical distance. At this time, you can adjust the reticulous level or cancel the receiving Asian audio to test the effect

The headset socket of the intercom is not in touch, and it is inserted again.