Acer CML174SXW, Service Manual

Page: 7 / 61

6
•
Display Area 337.92mm(H) x 270.34mm(V)
•
Pixel Pitch 0.264mm(H) x 0.264mm(V)
•
Display Color 262K (6 bit color)
•
Lamp Voltage 700 Vrms typ.
•
Lamp Current 7mA rms.( typ). 4 Lamp
•
Weight 2000g .
•
Optical Specifications
The following items are measured under stable conditions. The optical characteristics
should be measured in a dark room or equivalent state with the methods shown in
Note(4).
Š Measuring equipment : TOPCON BM-5A, BM-7, PHOTO RESEARCH PR650
(Inverter Freq. : 54kHz) *Ta =25
±
2
°
C, VDD=5V, fv=60 Hz, fDCLK=54 MHz, IL= 6.5mArms
Item Symbol Condition Min. Typ. Max. Unit Note
Contrast Ratio
(Center of screen)
CR
250 400 -
(1)(2)(4)
BM-5A
Rising T
R
- 12 20
Response
Time
Falling T
F
- 4.0 5
msec
(1)(3)
BM-7
Luminance of White
(Center of screen)
Y
L
200 260 - cd/m2
(5)
BM-5A
Rx 0.64
Red
Ry 0.34
Gx 0.29
Green
Gy 0.61
Bx 0.14
Blue
By 0.07
Wx 0.31
Color
Chromaticity
(CIE 1931)
White
Wy
Normal
φ
= 0 ˚
θ
= 0 ˚
Viewing
Angle
TYP.
-0.03
0.33
TYP.
+0.03
(1)(4)
PR650
θ
L
70 80 -
Hor.
θ
R
70 80 -
φ
H
70 80 -
Viewing
Angle
Ver.
φ
L
CR
≥
5
70 80 -
Degrees
(1)(4)
BM-5A
Brightness Uniformity
(9 points)
B
UNI
75 - - %
(6)
BM-5A