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Failure to heed the following precautions may result in damage to the recorder, remote control or video cassette.

1.DO NOT place the recorder…

…in an environment prone to extreme temperatures or humidity.

…in direct sunlight.

…in a dusty environment.

…in an environment where strong magnetic fields are generated.

…on a surface that is unstable or subject to vibration.

2.DO NOT block the recorder’s ventilation openings or holes.

(If the ventilation openings or holes are blocked by a newspaper or cloth, etc., the heat may not be able to get out.)

3.DO NOT place heavy objects on the recorder or remote control.

4.DO NOT place anything which might spill on top of the recorder or remote control.

(If water or liquid is allowed to enter this equipment, fire or electric shock may be caused.)

5.DO NOT expose the apparatus to dripping or splashing.

6.DO NOT use this equipment in a bathroom or places with water. Also DO NOT place any containers filled with water or liquids (such as cosmetics or medicines, flower vases, potted plants, cups, etc.) on top of this unit.

7.DO NOT place any naked flame sources, such as lighted candles, on the apparatus.

8.AVOID violent shocks to the recorder during transport.

ABOUT HEAD CLEANING

After an extended period of use, the video heads can become dirty, resulting in a loss of picture or sound during playback. If this happens, clean the video heads by using the optional cleaning tapes.

Symptoms of dirty video heads:

●The picture is not clear, or does not appear. There is no sound.

●Mosaic (block) noise appears in the picture.

●Black or mosaic horizontal stripes appear in the picture.

●The picture stops (as if the tape is paused).

●A blank black or blue screen appears.

●The picture is fuzzy. (VHS playback)

VHS playback

Early symptom

D-VHS playback

Late symptom

Block noise

Still image

Black screen

Use a cleaning tape designed specifically for D-VHS video heads (JVC D-VHS video head cleaner DFC-2) to clean the video heads.

●In order to avoid misoperation, set "NAVIGATION" to "OFF" ( ☞ pg. 43).

●Follow the instructions that are provided with the cleaning tape.

If you still do not get a clear picture after using a cleaning tape:

●The heads may be worn. Contact your nearest JVC dealer.

●During VHS playback, if there is a tracking problem, the picture may appear fuzzy. Adjust the tracking manually ( ☞ pg. 23).

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JVC HM-DH30000U manual About Head Cleaning
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HM-DH30000U specifications

The JVC HM-DH30000U is a versatile professional-grade digital video recorder that merges the capabilities of both VHS and digital formats, marking a significant achievement in video technology. This unique device serves as a bridge between traditional analog tapes and modern digital workflows, making it an ideal tool for video production, archiving, and playback.

One of the standout features of the HM-DH30000U is its ability to play and record in both S-VHS and VHS formats. This broad format compatibility ensures that users can easily access and preserve their existing VHS tape collections while also leveraging new video technologies. The built-in transcoding capabilities mean that VHS tapes can be converted into a digital format without sacrificing quality, making it easier to store and edit content on digital platforms.

In terms of video quality, the HM-DH30000U supports high-resolution output formats, ensuring that the recordings maintain a high level of detail and clarity. The machine is equipped with JVC’s advanced digital processing technologies that enhance the quality of both playback and recording. The Digital Frame Sync technology helps in eliminating jitter and enhancing the overall quality of video playback, which is crucial for professional applications.

The HM-DH30000U also includes features such as IEEE 1394 FireWire connectivity, allowing for easy connection to digital video cameras and other equipment. This connection enables seamless transfer of video footage and simplifies the editing process by providing a direct digital link. The unit also supports various input and output options, including composite, S-Video, and component video outputs, making it a flexible addition to any video production setup.

Furthermore, the recorder incorporates a user-friendly interface, allowing for straightforward navigation and operation. The on-screen menus make it easy to access settings and make adjustments, accommodating both novice users and seasoned professionals. The HM-DH30000U is designed for durability and reliability, making it a trusted companion for any video enthusiast or professional.

Overall, the JVC HM-DH30000U stands out as a functional and reliable device that combines the best of both analog and digital worlds, making it a valuable asset for those looking to preserve, edit, and create video content with ease. Its integration of advanced technologies and user-friendly features ensures that it meets a diverse range of video production needs.
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