Hitachi CP-SX1350 P5SX+, Service Manual

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6
CP-SX1350(P5SX+)
4-3 Flicker adjustment (V.COM adjustment)
Signals for internal adjustment Adjustment procedure
1. Make this adjustment after completing the
adjustment in 4-2 Ghost adjustment.
2. Use DAC-P - V.COM - R: in the FACTORY
MENU to adjust so that the flicker at the center
of the screen is less than the flicker at the
periphery.
(When the flicker is about the same across the
whole screen, adjust so that the flicker at the
center of the screen is somewhat less than
elsewhere.)
3. In the same way, use DAC-P - V.COM-G: in the
FACTORY MENU to adjust the G color flicker.
4. In the same way, use DAC-P - V.COM-B: in the
FACTORY MENU to adjust the B color flicker.
4-2 Ghost adjustment
Signals for internal adjustment
30%
30%
112/255
0/255
Adjustment procedure
1. Use DAC-P - GHOST - R: in the FACTORY
MENU to adjust so that R color ghost is at a
minimum.
(Set the adjustment value to default, and then
raise the value. When a ghost appears to the
left of a vertical line, reduce the value by 2
steps as below.)
2. In the same way, use DAC-P - GHOST-G: in the
FACTORY MENU to adjust so that G color
ghost is at a minimum.
3. In the same way, use DAC-P - GHOST-B: in the
FACTORY MENU to adjust so that B color
ghost is at a minimum.
4-4 E-POS adjustment(vertical bars adjustment)
Signal pattern for internal adjustment
112/255
Adjustment procedure
1. Make this adjustment after completing the
adjustment 4-3 Flicker adjustment.
2. Use DAC-P-E-POS-R : in the FACTORY MENU
to adjust so that R color vertical bars is at a
minimum.
3. In the same way, use DAC-P-E-POS-G : in the
FACTORY MENU to adjust so that G color
vertical bars is at a minimum.
4. In the same way, use DAC-P-E-POS-B : in the
FACTORY MENU to adjust so that B color
vertical bars is at a minimum.