Acer D240H Service Manual page 7

Acer
DC output loading
capability
Rise Time
Dynamic load change
Hold-up time
Overshoot
Turn on delay time
Power management
Note3: Paralleled a 0.1uF ceramic Cap. And 47uF aluminum Cap. Between the end of DC loading side,
Measured band-width=20MHz. Ripple voltage of +25V is less than 1500mv when enter into burst mode.
3.1.3 Protection characteristics
Protection
OPP(Over current protection)
SCP(short circuit protection)
OVP(Over voltage protection)
OTP(Over temperature protection)
Fuse protection
Table-1
Status
Power On
Power Saving
Power Off
3.2 Backlight Power Supply
Panel: AUO-M240HW01-V2
Lamp
Input Voltage
Input current
On/Off switch level
On/Off switch level
Brightness PWM Duty (ACM Off)
Brightness PWM Duty (ACM On)
CCFL operating Voltage
CCFL Current
AC input: 100V~240V
nominal AC input
with auto-recovery function
Auto recovery
NA
NA
H-sync V-sync
on on
off on
on off
off off
-- --
Items
Vcc5V/1.8A,
Vcc25V/1.4A
Audio 5V: 1.5A
USB 5V: 1.5A
<50mS
>10mS
<10%
2S
Condition
<output capacitor voltage
Video Power
active ≤ 70W
blanked < 2W
blanked < 2W
blanked < 2W
-- < 1W
4 CCFL
23.2---28V
1.2A (Typ.), 1.4A (Max.)
3.6V≧V on≧ 2.0 V (on)
-0.3v ≤ V off ≤ 0.8 V (off)
3.6V≧V on≧ 2.0 V (on)
-0.3v ≤ V off ≤ 0.8 V (off)
35%~100%
3%~100%
900Vrms (Typ.),
7.5mA (Typ.)
8.0mA (Max.)
Acer –LCD-D240H
See Table-1
Spec
90W ( min )
LED
White
Amber
Amber
Amber
Off
Specification