When qx 1 is connected to the playm software, it always rotates and does not display the shooting picture. What is the reason?

The industry often encounters the phenomenon that the surveillance camera based on CCD board has no picture display. I don't know if it's the power supply, the wiring or the camera itself. The following are some common reasons and solutions for no map, which you can refer to for maintenance.

1, power supply of monitoring camera is insufficient: the switching power supply itself is insufficient, which leads to overheating of the switching power supply, thus causing thermal protection. Check whether the field mode power supply has temperature. If it's cold, the power will collapse. Solution: replace the power supply; .

2. The failure of the monitoring camera itself, because this is the only camera with this failure, may occur in the internal program of the monitoring camera after it crashes and restarts after power failure, which is mainly caused by poor reset circuit. .

3. The transmission line has power supply: If the video transmission line has alternating current superposition, the electrolytic capacitors inside the surveillance camera and distributor will be charged, thus blocking the output of video signals. I tested this in the lab and found this problem in several sites. Test method: Measure the voltage of video cable with multimeter. solve