BenQ Q7C3, Руководство по обслуживанию

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Q7C3 LCD Monitor Service Guide
Engineering Specification
13
70% minimum (measuring at 115Vac and full load)
Power saving mode
＜
1 Watts at 115vac
3.5.2 Output Power Requirement
The power circuit shall supply DC power outputs as followings:
Output
Nominal Regulation Load Current Range
1 5V-panel ±10% 0 ~ 1.0A
2 3.3V-Fix ±5% 0 ~ 1.0A
3.5.3 Power Management
Mode H/Vsync Power consumption
LED Color
(Status)
Recovery
Time
Normal Both exist < 50W (with audio)
Blue
(Normal)
--
Normal Both exist < 40W (without audio)
Blue
(Normal)
--
off
None or
Only one exist
< 1W
, under 115Vac
<
2W, under 264Vac
Amber < 3 sec
3.6 Specification of Inverter
The backlight system is an edge-lighting type with 4 CCFLs (Cold Cathode Fluorescent Tube).
The characters of dual lamps are shown in the following tables.
ITEM SYMBOL MIN TYP MAX Unit Condition
Lamp Voltage VL -- 700 860 V IL=7.0 mA
Lamp Current IL 13 14 15 mA Each connector
Inverter Frequency
FL 40 50 80 kHz
1700 -- -- V Tb=0
o
C
Starting lamp voltage
VS
1200 -- -- V Ta=25
o
C
Lamp life time LT 30,000 40,000 -- Hr
I
L
= 7.0
±
0.5mA
Continuous
Operation
Ta=25
±
5
o
C
NOTE: 1.All condition are at 25C ambient unless otherwise specified.
2. Load Panel=SXGA 17”