SCREEN OPERATION
The Horizon screen has been preset to four different formats. The screen can be set to any format by simply pressing the
corresponding button on the six-button switch. Below is a list of each button function.
IMPORTANT. When operating the switch, press and release the buttons. DO NOT hold the button for more than three (3) seconds or
the button will be reprogrammed to the current screen position.
^
Returns the screen and mask to the up position.
STOP
Stops the screen and mask at any position when pressed.
1
Lowers screen to NTSC (1.33:1) format. Mask will travel down and reverse wrap on the roller. The mask is not
used for this format.
2
Sets format to HDTV (1.78:1)
3
Sets format to Letterbox (1.85:1)
4
Sets format to Anamorphic (2.35:1)
2
INSTALLATION
1. Install screen by raising unit into position between joists at one end only. Install one lag screw in each mounting
bracket.
2. Level unit lengthwise with a carpenter’s level and plumb level. Secure opposite end.
CAUTION! Do not seal in until screen has been secured in position and properly tested for satisfactory operation.
3. Detach access panel by removing screws (Fig. 1).
4. Unwrap the two T6 cables that are attached to the bus interface control. Route them through the hole in the end of
the screen case.
5. Run both T6 cables to the wall switch box and connect them to the double end of the 2 to 1, T6 phone jack adapter.
6. Plug one end of the remaining short T6 cable into the single plug end of the T6 adapter and plug the other end of
the T6 cable into the back of the 6 button wall switch. Install the switch in the box and attach the cover plate.
7. Unplug the transformer located on the non-motor end of the screen.
8. Remove the receptacle cover plate. Install electrical hook up as shown in the wiring diagram.
NOTE: Screen has been internally wired at Da-Lite. Wiring designated “external” is completed by installer conforming to local
and national codes.
9. After the electrical connections are completed replace the cover plate and reinstall the transformer into the
receptable.
CAUTION! DO NOT CUT TAPE ON FABRIC WITH A KNIFE OR ANY SHARP TOOL. REMOVE BY PULLING TAB ATTACHED TO
ORANGE STRING.
10. Carefully remove two wood boards securing mask surface to case.
11. Test installation by carefully running picture and mask surfaces up and down several times. Be prepared to stop
screen.
IMPORTANT. READ OPERATING INSTRUCTIONS BEFORE TESTING SCREEN.
NOTE: When rolled down, the picture surface should wrap fully around the roller. No part of the roller should be exposed.
Picture and mask surfaces will automatically stop in the down position.
CAUTION! Excessive continuous operation may cause overheating. If this happens the motors will shut off until they cool to
normal operating temperature.
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SCREEN ADJUSTMENT
ADJUSTING THE SCREEN
The motors on the Horizon Electrol
®
have been preset to four different screen formats based on your screen size. They
are 1.33:1, 1.78:1, 1.85:1 and 2.35:1. It is possible to adjust these formats for your particular needs. If you want to
change formats we suggest you contact your Da-Lite Dealer to make the adjustments for you.
The mask surface and the projection screen must be adjusted separately.
The following instructions walk you
through this process.
