Acer G205H Service Manual page 7

Acer
Status
Power On
Power Saving
Power Off
3.1.4
Backlight Power Supply
Items
Panel
Lamp
Input Voltage
Input current
On/Off switch level
Brightness PWM Duty
(ACM Off)
Brightness PWM Duty
(ACM On)
CCFL operating
Voltage
CCFL Current
CCFL startup voltage
Operating frequency
Protect delay time
Efficiency
Note: Other panels please refer to the reference panel specs.
3.2 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
Set brightness control and also contrast control at maximum, to measure the screen center, the light output shall ≥ 240
2
cd/m (as panel spec)
3.3 White balance
The test standard conditions refer to Sec 3.3.(Brightness control is at 100 contrast control is at 50 )
H-sync V-sync
on on
off on
on off
off off
-- --
SEC LTM200KT01 panel
(glare/non glare)
4 CCFL
DC 23~28 V
1.1A (Typ.), 1.2A (Max.)
5.5V≧Von≧ 2.0 V (on)
-0.3v ≤ Voff ≤ 0.8 V (off)
30%~100%
10%~100%
840Vrms (Typ.),
3.0 mA (min.)
6.5mA (Typ.)
8.0 mA (Max.)
≧1700 Vrms (0˚C)
40~60KHz
> 1 second
≥70% (Using dummy load)
: 25 ± 5°C
: white
: 1600 x 900
: 700 mV ± 2%
: 30 minutes
Video Power
active ≤ 48W
blanked < 1W
blanked < 1W
blanked < 1W
-- < 1W
Specification
CMO M200O1-L05(NC)
4 CCFL
DC 23~28 V
1.1A (Typ.), 1.2DA (Max.)
5.5V Von ≧ 2.0 V (on)
≧
-0.3v ≤ Voff ≤ 0.8 V (off)
30%~100%
10%~100%
830 Vrms (Typ.),
3 mA (min.)
6.5 mA (Typ.)
8 mA (Max.)
≧ 480 Vrms (0˚C) 1
40~80KHz
> 1 second
≥70% (Using dummy load)
Acer –LCD-G205H
LED
Blue
Yellow
Yellow
Yellow
Off
LG LM200WD1(NC)
4 CCFL
DC 23~28 V
1.1A (Typ.), 1.2A (Max.)
5.5V Von ≧ 2.0 V (on)
≧
-0.3v ≤ Voff ≤ 0.8 V (off)
30%~100%
10%~100%
830 Vrms (Typ.),
3 mA (min.)
6.5 mA (Typ.)
8 mA (Max.)
≧ 480 Vrms (0˚C) 1
40~80KHz
> 1 second
≥70% (Using dummy
load)