Job Recruitment Website - Property management company - The power light of the intercom V-2 1 video extension in Lilin Building is on, and the button downstairs is unresponsive.
The power light of the intercom V-2 1 video extension in Lilin Building is on, and the button downstairs is unresponsive.
1. Ask the property manager to take a spare machine and install it in your home to see if it's ok (if you use someone else's, dial someone else's room number when you try). If it works, there is something wrong with your indoor unit.
2. If not, check the power supply first. First, check the power supply with the multimeter DC gear to see if the voltage is enough; If the power supply is normal, please check the audio cable and data cable. There is a voltage between the sound line and the ground when it is still; There is pulse voltage when the data line is talking.
3. If all the above are all right, let the maintenance man of the property set it. Maybe the machine is set to silent mode.
Wish you success! You can ask me any questions.
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