LG DU-52SZ61D Service Manual page 17

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14-4. It followed in Screen Condition,
Projector Lens Direction
(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
14-5. It followed in Screen Form,
Adjustment Method
(1) When the screen is rotated: Rotate the Engine to adjust
1) Badness Type: Tilt Badness
2) Adjustment Method:
Engine Base rotate with the left/right and fix the
horizontality horizontal line of Cross Pattern
(2) In case of the upper screen size is large bottom screen
size than: upward projector
ADJUSTMENT INSTRUCTIONS
1) Badness Type: Keystone Badness
2) Adjustment Method:
The Engine Base front part raises at upper direction and
projection lens to be downward projector.
Bottom screen size a lot, fix the top/bottom screen size to
be same as.
(3) In case of the upper screen size is smaller bottom screen
size than: downward projector
1) Badness Type: Keystone Badness
2) Adjustment Method:
The Engine Base front part down at bottom direction
and projection lens to be upward projector.
Top screen size a lot, fix the top/bottom screen size to
be same as.
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