Hitachi HV-D27A, HV-D37A operation manual Realtime Auto White, Auto Shading Correction

Page 59

Realtime Auto White

The camera detects a white part in the image by itself, and its internal microcomputer automatically adjusts white balance in realtime. Use this function in case that the color temperature varies with time (e.g., from morning to day to night).

1. In the MENU mode, set up WHITE BAL:AUTO.

Where the camera is mounted fixedly and the orientation and image-taking range of the camera remain unchanged. It is advisable to use the white gate function in combination for attaining higher accuracy in white balance.

1.In the MENU mode, set up WHITE GATE:ON.

2.Using the WHITE GATE menu in the MENU mode, bring the display window to a monochrome part (white or gray part) in the image.

For details of the WHITE GATE function, refer to page 23. Be sure to set the WHITE GATE window to a white or gray part in the image. Do not set it to a colored part.

Auto Shading Correction

Color shading may occur in the vertical direction on screen due to any characteristic of lens. This camera is equipped with a function for correcting color shading automatically.

1.Provide a proper aperture value of lens using the auto iris function or manually.

2.Take a white image fully on screen. At this step, take care so that uneven brightness will not occur in the vertical direction.

3.In the DIRECT mode, press the AWB button. White balance is adjusted automatically.

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Contents CCD Color Camera Model HV-D27A / HV-D37A Retain Instructions CleaningAccessories Read InstructionsLightning Power SourcesPower-Cord Protection Grounding or PolarizationServicing Damage Requiring ServiceReplacement Parts Safety CheckAnweisungen befolgen Alle Anweisungen lesenDie Anweisungen aufbewahren Warnungen beachtenBlitzschlag StromversorgungErdung oder Polarisierung NetzkabelschutzWartung Eindringen von Fremdkörpern und FlüssigkeitEntflammbare und explosive Substanzen Starke stöße oder Vibrationen24. Wärme ErsatzteileSicherheitsprüfung Anbringung an der Wand oder an der DeckeTenir compte des avertissements AccessoiresLire les instructions Conserver ces instructionsFoudre Sources d’allmentationMise á la terre ou polarisation Protection du cordon d’alimentation21. Piéces de rechange 19. RéparationsChaleur 22. Vérificaton de sécuritéMontage au mur ou au plafond Important Notice Table of contents Standard composition Bi-directional data communication High quality pictureAuto shading compensation ASC Installation and storage sites Important safety notesOperating considerations Power supply ConnectorsFixed pattern noise TransportationCCD properties Smear and bloomingName and function each section GL in connector Lens selection System examples Main Menu Structure Menu StructureSpecial Menu Structure Special SET Whitegate Menu CAM Mode Camera modeMain Menu AutoAGC AGC ON/OFF White BAL White balance modeDTL ：DTL level setup ALC is brought up ALCSUB Menu Black Master black level settingPreset EXT Trigger Comb Filter SUB Menu Auto Shading Fast SlowPATTERN4 Special SET White Gate Level Masking Gamma DTL Page DTL SUB Ext trigger Mode MODE1, CCD Mode FLD Mode MODE1, CCD Mode FRM Mode MODE2, CCD Mode FRM Mode MODE2, CCD Mode FLDExternal Trigger Camera Sync OUTPUT/SYNC Page File set OFF Other FuncPage TOP 17. ID/TITLETitle ID/TITLE Setup ProcedureBlack Balance Adjustment How to Attain Better ImagesAuto Black ：NG White Balance AdjustmentAuto Black ：BAR Auto White ：NG Auto Shading Correction Realtime Auto WhiteALC AGC + Manual Iris + AESField store m ode Long-Time Store ModeFram e store m ode Menu controls Operation Direct controlSetting data store Extender RC-Z3 panel facilitiesExtender LED File selection Black and 13 B Black control Enable buttonStore operation notes Gain Gain controlContrast button Mode indicator LEDsTALLY/CALL button Shutter button・AUTO Iris switchGain switch White Balance mode select switchMenu screen composition DTL switchIris control 27 M. BLK controlRear Function Selection by Internal Switch SettingConnector TCS-7547-01-401 Multi connectors DEB-9SRXD/SD TXD/SD OUT GND Remote connector HR10A-7R-4SDC in connector R03-R3M2 VD/TRIG Trig connector HR10A-10R-12PBPAL NTSC, PALNtsc Signal to noise ratio Ntsc 62dB typ. Dnron Smpte PAL Full Input/Output Signals Page Dimensions 図面背 Ａ７３Ｄ－ＶＨ
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HV-D27A, HV-D37A specifications

The Hitachi HV-D27A and HV-D37A are advanced digital projectors designed to meet the demands of modern presentations and home entertainment applications. These models are widely recognized for their high-quality performance, user-friendly features, and robust build, making them ideal choices for both professional environments and home theaters.

One of the main features of the HV-D27A and HV-D37A is their exceptional brightness, with a light output that exceeds 3000 ANSI lumens. This high brightness level enables clear visibility even in well-lit rooms, ensuring that presentations and media are projected with vivid colors and sharp details. The projectors also utilize a high contrast ratio, typically around 2500:1, which enhances image quality by providing deeper blacks and brighter whites. This contrast capability ensures that users can display detailed images and videos effectively, contributing to a better overall viewing experience.

Both models leverage Hitachi's advanced DLP (Digital Light Processing) technology, which promotes reliable performance and minimal maintenance. DLP projectors are known for their ability to deliver stunning images with minimal pixelation, providing a smooth and seamless viewing experience. The incorporation of Texas Instruments' DLP chips further ensures a high level of image clarity and color accuracy.

In terms of connectivity, the Hitachi HV-D27A and HV-D37A are equipped with a variety of input options, including HDMI, VGA, and composite video, allowing seamless integration with various devices such as laptops, gaming consoles, and DVD players. This versatility makes these projectors suitable for diverse settings, from classrooms and boardrooms to living rooms and entertainment spaces.

Another notable feature is their compact design, making them easy to transport and set up. The lightweight construction of these projectors also means that they can be mounted on ceilings or placed on tables with ease, optimizing space and enhancing convenience.

The projectors also come with a range of intelligent features, including automatic keystone correction, which helps to optimize image alignment based on the projector's angle. This feature ensures that users do not need to fiddle with the settings manually, allowing for a quick and hassle-free setup.

In summary, the Hitachi HV-D27A and HV-D37A digital projectors are equipped with impressive brightness, contrast ratios, and advanced DLP technology, making them excellent choices for high-quality presentations and immersive home entertainment experiences. Their extensive connectivity options, intelligent features, and user-friendly design further enhance their appeal, solidifying them as dependable tools in any visual display scenario.
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