Zenith Z44SZ80 Series Service Manual page 13

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(4) Select program options.

(5) Check the [Erase before programming] and [Verify] menu

as shown <Fig. 10> and press the OK button.

(6) At this time, the download starts. The download will finish

in about 10 seconds.

<Fig . 10> PROGRAM OPTION WINDOW

8. Tilt & Keystone Adjustment

Apply the HD3/HD4 Engine

8-1. Geometery

(1) When the upper portion of the screen is larger than the

bottom: Adjust Projection lens upward.

(2) When the upper portion of the screen is smaller than the

bottom: Adjust Projection lens downward.

(3) When the horizontal line is tilting in the Cross Pattern:

Engine Base is rotating with the left/right.

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ADJUSTMENT INSTRUCTIONS

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8-2. Geometry, Adjustment

(1) When the screen is rotated: Rotate the Engine to adjust

1) Distortion Type: Tilt

2) Adjustment Method:

The adjustments will raise or lower the mount on the

right or left side so the image will be level.

(2) In case of the upper screen size is large bottom screen

size than: upward projector

1) Distortion Type: Keystone

2) Adjustment Method:

To correct figure (A) lower the light engine.

To correct figure (B) raise the light engine.

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