Acer CML174SXW, Service Manual

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5.3 Inverter (DC to AC Section)
5.4 Electrical characteristics
5.4.1 FOR AU PANEL M170EN05
MIN. TYP. MAX. COMMENT
INPUT VOLTAGE 11.4V 12.0V 12.6V 12V±5%
INPUT CURRENT -------- ? A 2A
Vin=12V,
Vbrite=3.3V
Normal BACKLIGHT
VOLTAGE
-------- 700V rms. --------
LAMP CURRENT
3mA rms. 7mA rms 7.5mA rms
DRIVING
FREQUENCY
40KHz 50KHZ 80 KHz
EFFICIENCY -------- 75% --------
Vin = 12V,max
brightness
Vin ON/OFF
sequence
-------- 1S --------
OLP TIME -------- 3S _
Open lamp
protection time
BRIGHTNESS
RANGE
20% -------- 100%
Brightness control 0V _ 3.3V
3.3V, brightness
max
Brightness _ 260cd/m
2
_
Strike voltage at
0°C
1700 Vrms _ _
Operating life time 30,000 hrs _ _ (note)
Note:
Life time (hr) can be defined as the time in which it continues to operate under the condition:
Ta=25±2°C, IL =7 mArms until one of the following event occurs:
1. When the brightness becomes 50 %
2. When the startup voltage (Vs) at 0°C becomes higher than the maximal value of Vs specified above.