Hitachi CP-X995W Service Manual page 8

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CP-X995W

4-3 Flicker adjustment

Signals for internal adjustment

4-4 NRSH adjustment

Signals for internal adjustment

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(V.COM adjustment)

(vertical stripe adjustment)

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Adjustment procedure

1. Make this adjustment after completing the

adjustment in 4-2 Ghost adjustment.

2. Use DAC-P - V.COM - R: in the Adjustment 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

Adjustment menu to adjust the G color flicker.

4. In the same way, use DAC-P - V.COM-B: in the

Adjustment menu to adjust the B color flicker.

Adjustment procedure

1. Make this adjustment after completing the

adjustment in 4-3 Flicker adjustment.

2. Use DAC-P - NRSH - R: in the Adjustment menu to

adjust so that the vertical lines spaced every 12

dots are as inconspicuous as possible.

(Reduce the adjustment value when black stripes

appear in the 2nd or 3rd tone from the black side.

Note that when the adjustment value is lowered,

white stripes may appear in the 2nd or 3rd tone

from the bright side. Should this happen, adjust so

that the stripes are as inconspicuous as possible.)

3. In the same way, use DAC-P - NRSH - G: in the

Adjustment menu to adjust vertical stripes of G color.

4. In the same way, use DAC-P - NRSH - B: in the

Adjustment menu to adjust vertical stripes of B color.

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