Hitachi vl-21a instruction manual Color RED Blue Yellow Burst

9.2.2. Color Reproduction

TEST CONDITIONS	Refer to “Measurement Conditions”
MEASURING SYSTEM	System 1
PROCEDURE:

1. Shoot the color bar chart and zoom WIDE or TELE to fit the chart to the monitor.

2.Measure the color amplitude and color phase on the vector scope of Red, Blue, and Yellow.

(Before the above measurement, Adjust the burst amplitude and phase on the vectorscope so that the burst level becomes 100% and its phase becomes 180°.

SPECIFICATION:

COLOR	RED		BLUE	YELLOW	BURST
Amplitude (%)	150 ±40%	100 ±40%		125 ±40%	100%
Phase ( ° )	98 ± 20°	348 ± 20°		182 ± 20°	180°
9.2.3. Luminance S/N
TEST CONDITIONS			Refer to “Measurement Conditions”
MEASURING SYSTEM			System 1
PROCEDURE:

1.Shoot the light box and zoom WIDE or TELE to fit the chart to the monitor.

2.The noise meter settings are:

	Input Level	:	Preset
	High Pass Filter	;	100KHz
	Low Pass Filter	:	4.2MHz
	Sub-carrier Trap	:	On
	Weighting	:	On
	Sag & Hue Comp.	:	Optimum
3. Measure the maximum S/N on the noise meter.
SPECIFICATION:	More than 50 db (NTSC)

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