BenQ PE8700 Gray Level for Composite Video & S-Video Equipment, Procedure Gray Level

5.3Gray Level for Composite Video & S-Video Equipment:

-Pattern generator (VG-828)

-Lux meter ( CL-100)

OSD Default value:

Item	Value	Item	Value
USER>Picture>
Brightness	30	Factory>SD
Contrast	17	Brightness	158
Color	23	Contrast	75
Tint	15	Saturation	91
Sharpness	3	Hue	0
Filter	3
Color Temp	2

Procedure:

(a) Gray Level

1.Connect power, Composite video or S-Video, into projector.

2.Change Timing and pattern of pattern generator :

Timing : NTSC(H:15.73 KHz,V:29.96 Hz)

pattern : gray 32( or gray16 only for overscan)

3.Light on projector

4.Set user OSD values to default.

5.Enter factory mode.

6.Set Factory values to default.

7.Adjust the Brightness and Contrast to let the black level to just distinguish, and the light output of white level to just max.

8.Check the 32 levels of gray. All steps must appear,

(b). Saturation Level:

9.Change Timing and pattern of pattern generator : Timing : NTSC(H:15.73 KHz,V:29.96 Hz) pattern : 100% blue

10.Adjust saturation and use lux meter to measure to let the light output just max.

11.Select “Save Setting” at “Factory OSD>Factory>”.

6. Additional Patterns used for color final check

(a). Pattern 1: 0 ~ 14% gray, 2% change per step, (For DVI-A, YPBPR inputs)

Criteria: All gray bars should have the same color. Brightness change should be linear.

(b) Pattern 2: 16-gray (0 ~ 100%), For all input sources

Criteria: All gray bars should have the same color. Brightness change should be linear.

38