JVC RSAL3 User Manual

RSAL3

Anamorphic Lens System

For JVC D-ILA Projector models:

Reference Series DLA-RS15/DLA-RS25/DLA-RS35

Summary

The RSAL3 is a high performance customized anamorphic lens system designed specifically for the above
ceiling mounted JVC projectors to provide the ultimate in true 2.40:1 cinema imm ersive theater environments.
It is designed to be very easy to install and is used with custom JVC projector settings to make home theater
projection on a 2.40:1 aspect ratio screen as plug and play as possible.

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FOR OPTIMUM PERFORMANCE

Optimum throw distance from screen to projector: 12 - 28 feet (3.5 to 8.5 meters).
Ratio of throw distance to screen width: 1.7 minimum.
Designed projector mounting configuration: ceiling mounted (i.e. projector feet "up") and horizontally centered

(approximately) on the center of the screen.
Optimum vertical position of the projector: +/- 20% of screen height from the top of the screen.
Design tip: Variations from optimum guidance will typically not cause noticeable effects on image quality,

although a small ratio of throw distance to screen width will likely result in the image being cut off at t he e dg es
(overall, a larger ratio is recommended).

1. Fine Tilt Knob

2. Lens Adjustment Screws

3. Lens Attachment Screw

Installation

• Before installing the lens, make sure the projector lens is horizontally aligned with the center line of t he
screen and that the image is not tilted lef t to right relative to the top and bottom of the screen border.
Also make sure the projector ceiling mount is secure since the anamor phic lens system will add mass
to the front of the projector.

• Insert the lens mounting screws into the two holes in the top of the ceiling mounted projector just above
the projector lens location. Leave at least 1/8" (3mm) of thread remaining. This can be done by hand.

• Make sure the Fine Tilt knob has approximately the same amount of thread showing on either side of
the lens bracket as shown and the screws holding the RSAL3 lens are reasonably tight so that the lens
does not tilt in its bracket.

• Install the lens system by placing the slot openings over the mounting screws and sliding back until the
system is flush against the projector's lens housing. Tighten the lens mounting screws.

• Turn on the projector. REMOVE T HE PROTECTIVE FILM ON THE FRONT OF THE RSAL3 LENS.
Using the remote, select "Lens => Zoom" and adjust the image size to fill the entire width of screen (the
lens may be cutting off part of the image but you will correct this in step 6). Select "Lens => Focus" and
tune in the focus.

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