Lcd H Afc Adjustment - Epson PhotoPC 800 Service Manual
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EPSON PhotoPC 800
5.2.8 LCD H AFC Adjustment
PREPARATION
†
Power switch: ON
ADJUSTING METHOD
1. Double-click on the DscCalDi122.
2. Select to "0" on the LCD "H AFC"
3. Apply the trigger at CL159, and adjust H AFC so that the time A from the
point where the pulse at CL161 rises until the position where the video
±
signal at CL159 starts in 2.9
A
CL161
CL159
enlargement
CL161
CL159
Figure 5-14. LCD H AFC Adjustment
Adjustment
µ
0.2
sec.
A
adj04
5.2.8.1 LCD RGB Offset Adjustment
ADJUSTMENT METHOD
Adjust LCD "RGB offset" so that the amplitude of the CL159 waveform is 6.8 V
±
0.3Vp-p.
CL159 waveform
Figure 5-15. RGB Offset Adjustment
Adjustment
Revision A
±
6.8
0.3Vp-p
adj05
86
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