Hitachi HV-D25 operation manual Gamma

15. GAMMA

Menu for setting the gamma parameters. If dark component contrast is inadequate, adjusting the gamma parameters allows detailed adjustment of the Sub-menu 2 Contrast (Off, Normal, High).

1)GAMMA TABLE: Sets gamma rising slope. Low:Dark component gradation reduced. Standard:Standard setting

High:Dark component gradation increased.

2)TOTAL GAMMA: Sets total (R, G and B) gamma point

Setting range is from -128 to 127. Press R to raise and L to lower RGB video signal gamma point. Simultaneously press the L and R buttons for about 2 seconds to set to 0.

3) R ADJUST: Sets red gamma point.

Setting range is from -128 to 127. Press R to raise and L to lower red video signal gamma point. Simultaneously press the L and R buttons for about 2 seconds to set to 0.

4) B ADJUST: Sets blue gamma point.

Setting range is from -128 to 127. Press R to raise and L to lower blue video signal gamma point. Simultaneously press the L and R buttons for about 2 seconds to set to 0.

5) INITIALIZE:Returns items to factory settings.

Simultaneously press the L and R buttons for about 2 seconds to return the factory settings.

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