1, be familiar with the instruction manual, and don't rush to use the newly bought video recorder or the first-time video recorder, because there are many kinds of video recorders, and there are always some differences in the operation and use of various machines. Therefore, first of all, read the instruction manual carefully, understand the functions and connection methods of each switch, key and input/output jack, and operate in strict accordance with the methods specified in the instruction manual to ensure the normal use of the machine. Otherwise, the machine may not only work abnormally, but also be damaged.
2, check the power supply voltage, check whether the video recorder power supply voltage is aimed at 220V v V. When adjusting the voltage selector, you must turn off the power supply of the video recorder and unplug the power cord from the power socket. Some video recorders use switching regulated power supply, and the voltage is between 1 10-240V, so there is no need to adjust.
3, a good use environment, environmental conditions directly affect the service life of the video recorder, video recorder should be stored and worked in a dry, ventilated, dust-free, away from vibration sources and strong magnetic fields. The video recorder should be placed in a stable place to avoid strong vibration and collision; It should also be placed in a ventilated place to avoid high temperature and not in a damp and dusty place; It should be as close to the display as possible to shorten the length of transmission cable and reduce signal loss and external interference. Don't put the video recorder near the strong magnetic field, because working in the strong magnetic field will affect the use effect, and don't put it near diluted and volatile drugs such as petroleum alcohol.