Output Power Requirement - BenQ Q7T3-FP737S Service Manual

Q7T3-FP737S-Dual function LCD Monitor Service

3.5.2 Output Power Requirement

The power circuit shall supply DC power outputs as followings:
Output Nominal
1 5V-panel
2 3.3V-Fix
3.5.3 Power Management
Mode H/Vsync
Normal Both exist
None or
off
Only one exist
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
Lamp Voltage
Lamp Current
Inverter Frequency
Starting lamp voltage
Lamp life time
NOTE: 1.All condition are at 25C ambient unless otherwise specified.
2. Load Panel=SXGA 17"
Regulation
±10%
±5%
Power consumption
< 40W
, under 115Vac
< 1W
2W, under 264Vac
<
MIN
VL --
IL
2.5
FL 40
1250
VS
1000
LT 50,000
Confidential
Engineering Specification
Load Current Range
0 ~ 1.0A
0 ~ 1.0A
LED Color Recovery
(Status)
Blue
(Normal)
Amber
TYP MAX
650 --
6.5 7
60 70
-- --
--
--
-- --
Time
--
< 3 sec
Unit Condition
IL=6.5 mA
V
mA Each Lamp
kHz
o
Tb=0 C
V
V
o
Ta=25
Hr Ta=25±2
C
o
C
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