Stewart Filmscreen Corp 4-Way ScreenWall ElectriMask To the Owner, Vertical Masking System

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TO THE OWNER

Congratulations on your purchase of the finest optical viewing screen available anywhere in the world!

Please take a moment to review this manual—it will help ensure you many years of trouble-free service from your new Stewart Filmscreen product.

About your 4-Way ScreenWall ElectriMask

Your 4-Way ScreenWall ElectriMask is a fixed frame with both vertical and horizontal masking panels, enabling the viewer to obtain any aspect ratio. The term aspect ratio refers to the format (width to height) in which your video sources are produced. The masking panels are controlled by three separate motors, allowing maximum control and adjustability.

Figure 1: Masking systems

Vertical Masking System


	HDTV Image Size								1.33:1 Standard
	HDTV Image Size								1.33:1 Standard
16:9/1.78:1				Converts to					Video NTSC
									Format

Horizontal Masking System

	HDTV Image Size		Converts to				1.85:1 Widescreen
16:9/1.78:1							Format

Horizontal and Vertical Masking Systems

			HDTV Image Size			Converts to				2.35:1 Cinemascope
			16:9/1.78:1							Format
			16:9/1.78:1							Format

The sizes and weights of the various 4-Way ScreenWall ElectriMask models are listed in the charts in Figure 2.

2	Stewart Filmscreen Corporation

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Contents Way ScreenWall ElectriMask Page Contents Way ScreenWall ElectriMaskTo the Owner About your 4-Way ScreenWall ElectriMaskVertical Masking System Horizontal Masking SystemRow Diag Size 33/1 Size Table Attainable Aspect RatiosPreparation Preparing the InstallationUnpacking Mounting the Frame Assembling the framePositioning the frame on the wall Wall BracketUnpacking and unrolling the screen Unrolling the screenAttaching the screen to frame Snapping screen onto frame Stewart Filmscreen CorporationConnecting the spring tension cable Spring Tension Cable Baby Eye Snap EyeletElectrical HOOK-UP Horizontal Mask Connection Vertical Mask ConnectionInstalling the high voltage switch control standard Screen SwitchPreparing the connection Making the connectionsInstalling the low-voltage 3-button switch option Button Momentary SwitchMaking the connection Low Voltage Control BoxInstalling the infrared remote control option Infrared Sensor Infrared Remote ControlMcir Control Board Infrared Installing the Multi-Channel Infrared Remote control optionSensor Connecting the Video Interface Control System Vics Romex ConnectorTerminal Block To 12V Trigger Wire to Projector Conductor Cable 14ga Recommended Pin conductorsHanging the Frame on the Wall Hanging the screen Stewart Filmscreen CorporationAdjusting the Mask Extension Operating the MaskModifying the extension of the mask Horizontal Mask Vertical Mask ScreenScreen Care and Cleaning General maintenanceReplacement parts and service Velux coveringTroubleshooting Problem description Probable cause Action to takeProduct Warranty Adjustment. Failure to correc tProblem is resolved Can damage motor and screen