White Balance Adjustment - Acer V173 Service Manual

Frequency
Output Current for
One Lamp
Operating Voltage
Kick Off Voltage
Hold Up Time
3.3 Brightness output
The test to verify specifications in this section shall be performed under the following standard conditions unless
otherwise noted. The test standard conditions are:
Temperature
AC line input voltage
Warm-up time
Video Resolution
Video input signal
LCD Module
MT170EN01_VC (InnoLux)
Set brightness control and also contrast control at maximum, to measure the screen center, the light output shall ≥ BL
2
cd/m (as panel spec)

3.4 White balance adjustment

The test standard conditions refer to Sec 4.3.
Cool
User
Warm
3.5 Brightness uniformity
The test standard conditions refer to Sec 4.3.
Set contrast control and brightness at the maximum, apply pattern as Fig.1, it should meet the following
requirement:
F 40.0
I 3.0
L
Vo ---
T 1.0
: 25 ± 5°C
: 110Vac / 60Hz or 220Vac / 50Hz.
: 30 minutes minimum
: 1280x1024@60Hz
: 700mV ± 2%
Mode
9300K 0.283 ± 0.030
Default
6500K 0.313 ± 0.030
Min. luminance
Max. luminance
50 60 kHz
7.0 8.0 mArms
610 --- Vrms
1.5 --- S
BL
>=250cd/m*m
Chromaticity Coordinate
x
0.298 ± 0.030
Default
0.329 ± 0.030
of nine points (backlight )
of nine points (backlight )
6
@Brightness=3.3V
INL MT170EN01_VC
INL MT170EN01_VC
@Vin=13.5V
Brightness=3.3V
y
Default
75 %