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1. Write frequency errors and abnormal installation software in writing frequency causes to be unable to write frequency; 2. Computer USB port or COM port abnormal causes to be unable to write frequency; 3. Writing frequency process is suffered from strong power RF signal interference, which will ......

The interoperability between the intercom is related to the frequency/Asian audio/signaling, which has nothing to do with the model or brand of the intercom. So write the intercom that needs to be talking to each other as the same frequency/Asian audio/signaling.

The processing methods are: 1. The terminal used to increase the sub -sound signal, 2. The terminal used to change the frequency point, and try not to use the entire frequency as much as possible. 3. Replace it to the range of other channels. The frequency point settings must be implemented in the w......

Basic processing method of intercom after water: First unplug the battery and remove the host of the intercom, including antenna, machine box, circuit board, conductive rubber, etc., clean it with water -free alcohol, and dry them.

If there is no sound when using the intercom, or the sound is very small, you should first check whether the battery voltage is sufficient. If the battery is normal, check the receiving frequency of the receiver and other intercom. Essence If there is no problem with the above inspections, then it m......

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, ......