NEC NDH-81 owner manual About the internal hard disk drive

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About the internal hard disk drive

The internal hard disk drive (HDD) is a fragile piece of equipment. Please use the recorder following the guidelines below to protect against possible HDD failure.

We recommend that you back up your important recordings onto DVD discs in order to protect against accidental loss.

Do not move the recorder while it is on.

Install and use the recorder on a stable, level surface.

Do not block the rear vent/cooling fan.

Do not use the recorder in excessively hot or humid places, or in places that may be subject to sudden changes in temperature. Sudden changes in temperature can cause condensation to form inside the recorder. This can be a cause of HDD failure.

While the recorder is switched on, do not unplug from the wall socket or switch the electricity off from the breaker switch.

Do not move the recorder immediately after switching it off. If you need to move the recorder, please follow the steps below:

1.After the message POWER OFF is shown in the display, wait at least two minutes.

2.Unplug from the wall socket.

3.Move the recorder.

If there’s a power failure while the recorder is on there is a chance that some data on the HDD will be lost.

The HDD is very delicate. If used improperly or in an unsuitable environment, it is possible that the HDD will fail after a few years of use. Signs of problems include playback unexpectedly freezing and noticeable block noise (mosaic) in the picture. However, sometimes there will be no warning signs of HDD failure.

If the HDD fails, no playback of recorded material will be possible. In this case it will be necessary to replace the HDD unit.

Introduction

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Contents HDD/DVD Recorder Risk of Electric Shock Do not Open Contents Handling Discs About the Symbol Display Symbol Used in this ManualCleaning Discs IntroductionRecommended recordable DVD discs Recordable and Playable DiscsPlayable Discs Availability of copying or moving featureRegional Code About the internal hard disk drive Front Panel Remote Control Operation Remote ControlRemote Control Battery Installation RF coaxial connection Hookup and SettingsConnecting to the Aerial Rear PanelComponent Video connection Connections to Your TVVideo connection Audio Left/Right ConnectionDigital Multi-channel sound Connecting to an AmplifierAmplifier Receiver Front of the recorder Rear Recorder Accessory Audio/Video A/V ConnectionsConnecting to the AV in 1 or AV in 2 Jacks Connecting a Digital CamcorderAuto Programming Using the Home MenuInitial Settings General SettingsProgram Edit Program EditTV Aspect Display ModePower Save Mode Manual Clock SetAudio Settings Language SettingsArea Code Lock Parental Control SettingsSet Password RatingDisc Settings Recording SettingsDisc Label FinalizeDisc Protect Displaying Information While Watching TV General Explanation On-Screen DisplayDisplaying Disc Information on-screen Playback General Playback FeaturesButtons Operations Discs Playback Camera Angle DVD If a menu screen is displayed DVD VCDMoving to another Title HDD -RWVR Marker SearchLast Condition Memory DVD 3D Surround -RWVR-RWVideo+RW -RPIP Picture in Picture HDD -RWVR Playable Audio format AC3, PCM, MP2, MP3, WMA Playing a DivX Movie FileMovie List menu options DivX file requirementMP3/WMA audio file requirement Playing an Audio CD or MP3/WMA fileAudio CD and Music menu options RandomProgram List menu options Program Playback with Audio CD and MP3/WMA filePhoto size Viewing a Jpeg FilePhoto List menu options Photo file requirementTo listen to music while slide show simultaneously Skip ImagesRotate Images View Slide ShowsErasing a files/folders from the HDD Editing a MP3/WMA, JPEG, DivX fileNaming a file on the HDD Moving a files Copying a files to another media or folderAbout HDD recording Disc types and recording formats, modes, and settingsRecording About DVD recordingTimeshift HDD Checking the Recording Time Instant Timer RecordingBasic Recording from a TV To Pause the RecordingTimer Recording Recording from External Components Checking Timer Recording DetailsTimer Recording Troubleshooting Recording from an External InputRecording from a Digital Camcorder TroubleshootingRecording from DV Input Before DV dubbingPlayback another title during recording Simultaneous recording and playbackTime Slip HDD Title List and Chapter List Menu Overview EditingTitles, Chapters and Parts HDD, VR Mode Original and Playlist EditingAdding Chapter Markers Changing Title ThumbnailsAdding Additional Title/Chapters to the Playlist -RWVR Making a New PlaylistDeleting a Part HDD -RWVR Deleting an Original or Playlist Title/ChapterNaming a Title Remote control buttons for entering a nameTime Search HDD -RWVR-RWVideo Undoing/Redoing the Last Deletion -RWVR Sort HDDCombining Two Titles Into One Combining Two Chapters Into Divide One Titles Into TwoHide a Chapter/Title +RW +R Moving a Playlist Chapter -RWVRProtect a Title Fast copying Maximum DubbingBefore Dubbing Restrictions on copyingDubbing from DVD to HDD Dubbing from HDD to DVDOne Touch Copy DVD to HDD One Touch Copy HDD to DVDTo finalize a disc, refer to Finalize on ReferenceAdditional Information Overwriting Recording +RWArea Codes Language CodesSymptom Cause Solution TroubleshootingYou can reset the recorder as follows Resetting the recorderIf you observe any of the following symptoms Specifications South Australia New South walesVictoria QueenslandNo MFL30384253

NDH-81 specifications

The NEC NDH-81 is a high-performance headphone designed to deliver an exceptional audio experience, using a blend of advanced technologies and ergonomic design. This model is recognized for its professional-grade sound quality and is particularly appealing to audiophiles and sound engineers alike.

One of the NDH-81's standout features is its closed-back design, which provides excellent sound isolation. This allows users to immerse themselves in the music without distractions from ambient noise. The headphones utilize a well-engineered bass reflex system that enhances low-frequency response while maintaining clarity across all ranges. This ensures that listeners can experience deep bass without sacrificing the integrity of mid- and high-frequency sounds.

The NDH-81 is equipped with large, high-fidelity 38mm dynamic drivers. These drivers are meticulously crafted to ensure a balanced sound stage, making it suitable for critical listening and professional audio applications. The headphones have an impressive frequency response range, typically between 5 Hz to 40 kHz, which encompasses the full spectrum of human hearing. This broad range allows for accurate reproduction of audio signals, capturing nuances that are often lost in lower-quality headphones.

Comfort is another essential aspect of the NDH-81. The headphones feature plush, breathable ear pads made from soft velour material. This ergonomic design ensures enduring comfort during extended listening sessions, crucial for professional use where long hours of wear are common. Additionally, the adjustable headband provides a secure fit without causing fatigue.

Another innovative technology incorporated into the NDH-81 is its impedance compatibility. With an impedance of 24 ohms, these headphones can be driven effectively by a wide variety of devices, from portable audio players to professional studio equipment. This versatility allows clients to utilize the NDH-81 across different audio setups without compromising sound quality.

The build quality of the NEC NDH-81 also deserves attention. Constructed with durable materials, these headphones are built to withstand the rigors of everyday use, ensuring longevity and reliability. Furthermore, the detachable cable feature adds to the practicality of the design, allowing for easy replacement in case of wear and tear.

In conclusion, the NEC NDH-81 stands out in the competitive headphone market due to its combination of advanced audio technologies, comfortable design, and durable construction. Whether for professional studio work, critical listening, or casual enjoyment, the NDH-81 offers a compelling solution for sound enthusiasts seeking quality and performance.