Quantum Data 801GX Instrukcja Obsługi Pobierz pdf (Strona 19)

3M Multimedia Projector MP8670/8745/8755/8770 Adjustments

1-7-9. White Balance Adjustment

Make this adjustment after completing NRSH

adjustment.

1. Use an SVGA (MP8670) or XGA (MP8745) VESA

(60) timing signal to input a 0.7 V p-p, 16-step

monochrome green signal.

2. Use DAC-P – SUB BRIGHT and DAC_P – SUB

CONTRAST-G from the adjustment menu for

optimum shading characteristics.

√√ Note

Lock DAC-P – SUB BRIGHT – G at 30.

Lock DAC-P – BLACK2-GAIN – G at 50.

Use DAC-P – SUB-BRIGHT – G to adjust the last

two of the 16-steps on the bright side so they can no

longer be distinguished then come back slightly.

After adjusting, if contrast is insufficient, use DAC-

P SUB CONTRAST – G to slightly increase

contrast. Repeat step 3.

To lower only the black level, adjust BLACK2-

GAIN – G.

3. Use an SVGA (MP8670) or XGA (MP8745) VESA

(60) timing signal to input a 0.21V p-p White signal.

4. Use DAC-P – SUB BRIGHT – R and DAC-P –

SUB BRIGHT – B in the adjustment menu to

adjust color coordinates in the center of the screen

to the following:

X = 0.280 ±± 0.005

Y = 0.340 ±± 0.01

(Low brightness white level)

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Quantum Data 801GX Instrukcja Obsługi Strona 19