Common faults of digital video cameras
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1. The image obtained when shooting is bad. This kind of failure can generally be subdivided into three situations. One is that the images displayed by the viewfinder and the TV are not ideal, and the cause of this failure is usually the camera circuit; the other is that the viewfinder image is normal but the image displayed by the TV is not satisfactory. Bad, this kind of failure is usually caused by bad AC adapter or line connection; third, the TV image is normal but the viewfinder image is bad, the cause of the failure is usually caused by the viewfinder.
2. The color of the image is unnatural. If the monitor image is normal but the recording tape has five colors or bad colors, the fault generally occurs in the video recording part: on the contrary, if the recording tape is normal but the monitor image is abnormal, it is caused by the AC adapter or poor connection. If both are bad, the fault is in the camera circuit.
3. The image is blurry and the focus is not good. If the manual focus is good and the auto focus is bad, the fault is usually in the auto focus circuit. If both manual and auto focus are bad, the fault is mainly in the lens focusing assembly.
4. The playback image has no accompanying sound. In this case, you can put the recorded tape into a normal video recorder for playback, and monitor the sound effect. If the sound is normal, the fault is in the AC adapter; otherwise, the fault is in the audio recording circuit or the microphone and the microphone circuit.
5. The whole machine does not work. After booting, all buttons have no effect, the viewfinder has no light, and the box-out mechanism does not work. This type of failure is usually caused by an abnormal power supply or power circuit. You should first check whether the battery voltage or the output voltage of the AC adapter is normal. If it is normal, the fault is in the power supply circuit.
6. Tape throughput failure. Both the viewfinder and the monitor can display the image at the time of shooting, but the tape cannot be loaded or removed. Such failures generally occur in the movement and its drive circuits.
