15.9.29
(1080i full)
Trapezoid adjustment
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PREPARATION
1. Apply a 1080i pattern
2. Set mode to 4x3 in set-up menu
3. Normalize the picture settings.
4. Set picture mode to VIVID
PROCEDURE
1. Enter service mode, select TRAP and adjust DATA so that lines at right and left are vertical
like a solid line
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