DVDO AVLab TPG Guía de usuario descargar pdf (Pagina 35)

DVDO AVLab TPG - 4K Test Pattern Generator

DVDO AVLab TPG 35 A.04

g. Position the meter properly – dark room, proper distance and view

h. Pay attention to redundant controls – processors, PCs and displays and DVD players all have

controls. – Start with TV. Work from the light – calibrate the TV using generator right into TV,

then put generator into AVR and recheck, then back to source.

3) Calibration (This below is based on the ISF workflow in CalMAN but the general flow is applicable in

any software package)

a. Pre-Calibration – First step is always to take a baseline, both for comparison/baseline, and as

a way to show the customer the before/after as part of the calibration report. This screen is

relatively automatic and only requires a single button press with no TV adjustments.

b. Mode settings – Check each TV mode (Cinema, Theater, Movie, Custom – avoid names like

vivid or dynamic) in this screen looking for a mode that can be adjusted and is closest to

proper CCT (color temperature) and gamma.

c. White point and Color space: Run the series and adjust the TV “Color temp” for the one that

lands the white closest to the center white target. Also adjust the color space on the TV for the

one that lands the primary colors closest to the targets – preferably outside the targets as

opposed to inside.

d. Turn off all automatic features – auto iris, auto brightness, black expansion, auto flesh tone

etc.

e. Adjust luminance – Run the series and adjust the TV backlight to the correct light output for

the environment, normally 40 fL for dark rooms and 60fL or more for bright rooms.

i. Note that backlight setting should not affect brightness and contrast settings, but

sometimes it does, so you should check this before and after brightness and contrast

ii. On an LCD, backlight or panel brightness should be an independent setting. On a

projector, use the iris setting (high lamp or low lamp also if available). Be sure to turn

off auto iris for initial calibration, then turn back on at the end to make blacks darker.

On some plasmas, this is labeled “Cell light”.

f. Adjust dynamic range:

i. Start with a black PLUGE pattern and adjust brightness such so that you can just see the

17 block (16 should be black – same as background and don’t see any blocks under 16)

ii. Move to White PLUGE and adjust contrast until you can just see the 238 block and

everything above is clipped and same as background. Some TVs cannot be adjusted to

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DVDO AVLab TPG Guía de usuario Pagina 35