Common faults and maintenance methods of dv camera

With the increase of users of home dv cameras, the amount of maintenance is also increasing. It is necessary to observe, analyze and think more about the fault phenomenon of the machine to be repaired, and then start the machine to check and measure it purposefully. Don't adjust, weld, disassemble or disassemble blindly and uncertainly, so as not to cause irreparable losses. The following introduces several common faults of household dv cameras and their troubleshooting methods for beginners' reference.

First, condensation

After the camera is damp, the "Dew" warning character is usually displayed in the viewfinder, and the camera is automatically protected, and the camera button temporarily fails, so it is impossible to continue shooting. Troubleshooting: first open the lens cover, then open the tape box and take out the video tape. Finally, put the camera in a ventilated place and try to evaporate the water with a fan. After a few minutes, the fault can be eliminated.

Second, when shooting or playing back, the picture has horizontal beam lines.

The reason is that dirt such as dust or falling magnetic powder is stuck on the camera drum. Troubleshooting: Remove the cover with a screwdriver, dip the suede with a little alcohol in your left hand, gently press it on the magnetic drum, and slowly turn the magnetic drum several times in the positive and negative directions with your right hand to remove dirt, and the fault can be eliminated. When wiping, remember not to touch the magnetic head with your hands or other hard objects, so as not to dirty or scratch the magnetic head.

Third, don't wear a belt.

The camera sometimes does not take the tape when shooting, and will automatically turn off the power after "buzzing" for a few seconds. It is usually due to poor quality or tight winding of the adhesive tape. Elimination method: When the camera is turned on, use the playback function of the camcorder to fast forward or rewind a little, and then rewind the tape to shoot, and the shooting will return to normal. It is recommended not to use inferior videos or too long videos. Because the longer the tape, the greater the possibility of "no tape" failure. We should try to use 30-minute or 60-minute tapes instead of 180-minute tapes.

Fourth, the main picture is too dark when shooting in backlight.

If the automatic aperture is used in backlight shooting, the subject will be too dark because the background light is too strong, which will seriously affect the visual effect. Exclusion method: You can get a clear image only by adjusting the aperture size of the camcorder with manual function.

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