Hitachi HV-D37A, HV-D27A operation manual External Trigger Camera Sync

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Note: Prohibited period of the external trigger pulse timing

For each external trigger mode, when the end edge of external trigger pulse is input in the prohibited period (shown in the under figure), the picture is not output after the SYNC reset.

Please input the repetition period of trigger pulse with the following specification, to avoid the trigger input to an above prohibited period.

The period of the next end edge trigger pulse from the previous end edge of trigger CCD MODE: FLD, except from nV to nV+2H

CCD MODE: FRM, except from 2nV to 2nV+2H (V: a vertical synchronous period, n: an integer)

EXTERNAL TRIGGER

CAMERA SYNC

SYNC reset timing

Next SYNC Reset timing

Prohibited period of the end edge of external trigger pulse (1H period before the start of camera V SYNC)

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Contents CCD Color Camera Model HV-D27A / HV-D37A Cleaning AccessoriesRead Instructions Retain InstructionsPower Sources Power-Cord ProtectionGrounding or Polarization LightningDamage Requiring Service Replacement PartsSafety Check ServicingAlle Anweisungen lesen Die Anweisungen aufbewahrenWarnungen beachten Anweisungen befolgenStromversorgung Erdung oder PolarisierungNetzkabelschutz BlitzschlagEindringen von Fremdkörpern und Flüssigkeit Entflammbare und explosive SubstanzenStarke stöße oder Vibrationen WartungErsatzteile SicherheitsprüfungAnbringung an der Wand oder an der Decke 24. WärmeAccessoires Lire les instructionsConserver ces instructions Tenir compte des avertissementsSources d’allmentation Mise á la terre ou polarisationProtection du cordon d’alimentation Foudre19. Réparations 21. Piéces de rechange22. Vérificaton de sécurité Montage au mur ou au plafondChaleur Important Notice Table of contents Standard composition High quality picture Auto shading compensation ASCBi-directional data communication Important safety notes Operating considerations Power supplyConnectors Installation and storage sitesTransportation CCD propertiesSmear and blooming Fixed pattern noiseName and function each section GL in connector Lens selection System examples Menu Structure Main Menu StructureSpecial Menu Structure Special SET Whitegate CAM Mode Camera mode Main MenuAuto MenuWhite BAL White balance mode DTL ：DTL level setupAGC AGC ON/OFF ALC ALC is brought upBlack Master black level setting PresetSUB Menu EXT Trigger Comb Filter SUB Menu Auto Shading Slow FastPATTERN4 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 FLD Mode MODE2, CCD Mode FRMExternal Trigger Camera Sync OUTPUT/SYNC Page File set Other Func OFFPage 17. ID/TITLE TOPID/TITLE Setup Procedure TitleHow to Attain Better Images Black Balance AdjustmentWhite Balance Adjustment Auto Black ：BARAuto Black ：NG Auto White ：NG Realtime Auto White Auto Shading CorrectionAGC + Manual Iris + AES ALCLong-Time Store Mode Field store m odeFram e store m ode Operation Direct control Menu controlsSetting data store RC-Z3 panel facilities ExtenderExtender LED File selection Enable button Store operation notesGain Gain control Black and 13 B Black controlMode indicator LEDs TALLY/CALL buttonShutter button Contrast buttonIris switch Gain switchWhite Balance mode select switch ・AUTODTL switch Iris control27 M. BLK control Menu screen compositionFunction Selection by Internal Switch Setting RearMulti connectors DEB-9S Connector TCS-7547-01-401Remote connector HR10A-7R-4S DC in connector R03-R3M2RXD/SD TXD/SD OUT GND Trig connector HR10A-10R-12PB VD/TRIGNTSC, PAL NtscPAL 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.