Panasonic CT-30WX54J Service Manual page 103

13.3 DAF adjustment
(Dynamic focus adjustment)
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The purpose of this adjustment is to move the focus in the picture, so the focus is in balance in the
whole picture (same level). Perform this adjustment as a visual adjustment, centering both waveforms,
repeat adjustment until best adjustment isobtained.
PREPARATION
1. Picture settings normalized.
2. Picture mode set to VIVID.
PREPARATION
1. Apply a crosshatch pattern.
2. Connect channel one of the oscilloscope with 100x1 probe to DAF OUT on J172 (D-Board).
3. Connect channel two of the oscilloscope with 10x1 probe to KG (L-Board).
4. If the the points A and B are different adjust, in service mode, adjust (HDAFS) DATA so that
become the same position.
5. Apply a 1080i crosshatch pattern and repeat from step 1 to step 4.
NOTE
Both waveforms should be centered. Upper waveform could be different depending on the
pattern applied
DAF adjustment