Criteria; Full On/Full Off Contrast; Procedure; Uniformity - Christie E Series Service Manual

Criteria

Table 3.4 Brightness Criteria - DHD675-E/DWU675-E
PROJECTOR
WUXGA
Dual Lamp
HD Dual Lamp
WUXGA
Dual Lamp
HD Dual Lamp
Table 3.5 Brightness Criteria - DHD775-E/DWU775-E
PROJECTOR
WUXGA
Dual Lamp
HD Dual Lamp
WUXGA
Dual Lamp
HD Dual Lamp

3.10.3 Full On/Full Off Contrast

Procedure

1. Display the Full White pattern.
2. Use a light meter to measure the brightness values of full white pattern P5
3. Display the Full Black pattern.
4. Use a light meter to measure the brightness values of full black pattern B5.
5. Use the contrast formula to calculate the contrast values.
• Contrast Formula: P5/B5. NOTE: P5=center of white image and B5=center of black image.
Criteria
Dynamic Aperture Enabled: Full white to full dark contrast ratio--> 5000:1.

3.10.4 Uniformity

Procedure
1. Display the Full White pattern.
2. Use a light meter to measure the brightness values of P1 to P13 (see Full white pattern image).
E Series 675/775 Service Manual
020-000546-04 Rev. 1 (04-2017)
LAMP
POWER
Dual 330 Watt 6S High Brightness color wheel (RGBCYW)
Dual 330 Watt 6S High Brightness color wheel (RGBCYW)
Dual 330 Watt 6S Best Color color wheel (RGBCMY)
Dual 330 Watt 6S Best Color color wheel (RGBCMY)
LAMP
POWER
Dual 350 Watt 6S High Brightness color wheel (RGBCYW)
Dual 350 Watt 6S High Brightness color wheel (RGBCYW)
Dual 350 Watt 6S Best Color color wheel (RGBCMY)
Dual 350 Watt 6S Best Color color wheel (RGBCMY)
COLOR WHEEL TYPE
COLOR WHEEL TYPE
Section 3: Service Setup
BRIGHTNESS
RANGE
Nominal
6100
5800
3874
3683
BRIGHTNESS
RANGE
Nominal
6600
6300
4191
4001
3-11