Hitachi HV-D37A, HV-D27A operation manual Gamma

13)Initialize : Returns level menu settings to preset values. Simultaneously press L and R for about 2 seconds.

14)File select : Selects scene files 1 - 4 and preset.

10.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, Low, 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 level menu settings to preset values. Simultaneously press L and R for about 2 seconds.

6)File select : Selects scene files 1 - 4 and preset.

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