This JVC camcorder has 4704 fan hours. Please note, it doesn't come with an external power supply. There are some known issues: the SDI output isn't working and the white balance feature works inconsistently.

To use this JVC camcorder, first make sure you have a proper power source as it doesn't include an external power supply. When shooting, be aware that the SDI output doesn't work, so don't rely on it for external connections. Also, since the white balance feature is inconsistent, you may need to manually adjust the color settings according to the shooting environment. As for maintenance, keep the camcorder clean and store it in a dry place. Check the battery regularly and replace it when needed.