Acer X163W, Service Manual

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Acer
Acer –LCD-X163W
6
off off blanked < 2W Orange
Power Off -- -- -- < 1W Off
3.2 Backlight Power Supply
Panel
: CMO M156B1-L01
Items Specification
Lamp 2 CCFL
Input Voltage 14 (13.5~16.3)V
Input current 1.1A(typ.), 1.4A(max.)
On/Off switch level
5.5V V
≧
no 2.0 V
≧
(on)
-0.3V ≤ Voff ≤ 0.8 V (off)
Brightness PWM duty
Extra PWM duty:35% --100% ,High=3.3V, Low=0.0V, Freq=4* Vsync.freq.
.
CCFL operating Voltage
650Vrms (Typ.),
3.0 mA (min.)
7.0mA (Typ.) CCFL Current
8.0mA (Max.)
CCFL startup voltage
≧
1200 Vrms (0 ˚ C)
Operating frequency 40~80 KHz
Protect delay time
> 1 second
Efficiency ≥ 75%(dummy load instead of CCFLs:100Kohm*2)
Note: Other panels please refer to the reference panel specs .
3.3 Brightness output
T
he test to verify specifications in this section shall be performed under the following standard conditions unless
otherwise noted.
Temperature : 25 ± 5°C
Test pattern : white
Video Resolution : 1366 x 768
Video input level : 700 mV ± 2%
Warm-up time : 30 minutes
LCD Module BL
CMO M156B1-L01 ≥ 210 cd/m
2
Set brightness control and also contrast control at maximum, to measure the screen center, the light output shall ≥
BL cd/m
2
(as panel spec)
3.4 White balance
Chromaticity Coordinate
Mode
x y
Cool 9300K 0.283 ± 0.030 0.297 ± 0.030
Warm 6500K 0.313 ± 0.030 0.329 ± 0.030
User Panel While x Panel While y
The test standard conditions refer to Sec 3.3. (Brightness and contrast are under default value)
3.5 Brightness uniformity
The test standard conditions refer to Sec 3.3.