Acer X163W X163W LCD Monitor Service Guide - Page 7

Acer Power Off 3.2 Backlight Power Supply Panel: CMO M156B1-L01 Items Lamp Input Voltage Input current On/Off switch level Brightness PWM duty off off blanked < 2W -- -- -- < 1W Acer -LCD-X163W Orange Off Specification 2 CCFL 14 (13.5~16.3)V 1.1A(typ.), 1.4A(max.) 5.5VÚVnoÚ2.0 V (on) -0.3V≤Voff≤ 0.8 V (off) Extra PWM duty:35% --100% ,High=3.3V, Low=0.0V, Freq=4* Vsync.freq.. CCFL operating Voltage CCFL Current CCFL startup voltage Operating frequency Protect delay time Efficiency 650Vrms (Typ.), 3.0 mA (min.) 7.0mA (Typ.) 8.0mA (Max.) Ú1200 Vrms (0˚C) 40~80 KHz > 1 second ≥75%(dummy load instead of CCFLs:100Kohm*2) Note: Other panels please refer to the reference panel specs. 3.3 Brightness output The test to verify specifications in this section shall be performed under the following standard conditions unless otherwise noted. Temperature Test pattern Video Resolution Video input level Warm-up time : 25 ± 5°C : white : 1366 x 768 : 700 mV ± 2% : 30 minutes LCD Module BL CMO M156B1-L01 ≥210 cd/m2 Set brightness control and also contrast control at maximum, to measure the screen center, the light output shall ≥ BL cd/m2 (as panel spec) 3.4 White balance Mode Cool Warm User 9300K 6500K Chromaticity Coordinate x y 0.283 ± 0.030 0.297 ± 0.030 0.313 ± 0.030 0.329 ± 0.030 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. 6