Horizontal Phase Adjustment (Hpos) - Panasonic PT-53X54J Service Manual

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17.1 Horizontal phase adjustment (H POS)
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This adjustment is intended to correct the horizontal position of the picture
NOTE:
1080i, 480p, 480i pattern can be obtained from Panasonics TU-DST51 set-top box DTV decoder.
1. Apply a HD 1080i crosshatch pattern that lets adjust the image to correct vertical size (see above note).
2. Adjust electrical and optical focus of red, green and blue colors so that focus is best at the center of screen.
3. Set convergence MUTE DAC from 00 to 01, and confirm disabled convergence.
4. In service mode set VIDEO C_OFF DAC from 00 to 01 (to project only green).
5. Set DAC MUTE from 00 to 01 (disabling digital convergence).
6. Turn green deflection yoke until line is perfectly horizontal.
7. Adjust H POS DAC data so that pattern is in the center of screen.
8. Enable digital convergence by changing DAC MUTE from 01 to 00.
9. Set VIDEO C_OFF DAC from 01 to 00.
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http://tsn.pstc.panasonic.com/viewing/NA/PT-53X54J/SVC/s1701000000.html [23/04/2012 12:16:25 p.m.]