Panasonic CT-30WX54J Service Manual page 163

15.9.23 (1080i letter and split)
Corner PCC adjustment
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PREPARATION
1. Apply a 1080i pattern
2. Normalize the picture settings.
3. Set picture mode to VIVID
PROCEDURE
1. To adjust upper and lower linearity.
2. Adjust TOPG to straighten upper lines
3. Adjust BTMG to straighten lower lines
NOTE
If TOP-BOTTOM bending point is not so good, adjust TOPSL and BTMSL of slice level.
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