Mounting the ATH1 Transport

1.DO NOT CONNECT POWER TO THE TRANSPORT AT THIS TIME.

Position the flat side of the

ATH1/M380 Attachment Bag Contents

motorized transport against the bottom

Pivot screw as

#10-32x5/8” screw (1)

side of the Attachment Plate so that the

assembled

transport logo is toward the screen and

#10-32 nut (1)

the center “M” hole in the Attachment

Attachment

Plate is aligned with the front recessed

#10-32 lock washer (1)

Plate

transport hole. Insert the #10-32 pivot

#10-32 washer (1)

screw up through the transport and

Attachment Plate and loosely complete

the assembly with the corresponding

#6-32x3/8” screw (4)

washer, lock washer and nut. Now

ATH1 mount

loosely insert the four small 3/8” screws

through the four remaining “M” slots through the top of the Attachment Plate and down into the transport.

3.Refer to the ATH1 user manual (included with ATH1) for additional instructions to install the lens at this time, but do not forget to complete the “Final Adjustments” step below.

FINAL ADJUSTMENTS (ALL INSTALLATIONS)

1.Turn the projector on with the UH480 Lens out of the projector beam. Set the horizontal lens shift to neutral (if a feature of your projector) and then adjust the ceiling mount so that the 16:9 image is in the exact center of and square to the screen, with a similar amount of image slightly over the top and bottom screen borders. If the projector lens is not in the exact horizontal center of the screen you may need to use a little horizontal lens shift for this purpose.

2.Bring the UH480 Lens into the beam. Adjust the vertical position and tilt of the Lens so that the projector beam is passing through the center of the Lens and so any residual pincushion distortion is about the same at the top and bottom of the image. This will typically result in the UH480 Lens being below the center of the projector lens and tilted slightly downward. Tighten the knobs.

3.Adjust the rotation of the ATH1 transport so that the left and right sides of the image are an equal distance from their respective screen borders. Now tighten the Pivot Screw (M380) and also the four remaining screws holding the transport to the Attachment Plate.

4.For optimum multiple aspect ratio performance, adjust the projector’s zoom so that a 1.85:1 aspect ratio movie (Lens “out”) is just masked by the top and bottom of the screen border. This way 1.85:1, 16:9 and 2.35-2.4:1 aspect ratio movies should all be presented to fill the screen at a constant height.

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