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Acer BV193HQ Service Manual page 6

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Acer
Protection
Power management
Note2.
Before each test, the buck capacitor need to be discharged.
Before each test, it must be 10 minutes at least after the latest test.
Note4.
ested by DC loading side parallel with a 47uF/EC and 0.1uF/Ceramic , Capacitors and measured
band-width with DC-20MHz, the sine wave signal that the frequency is 1K Hz input when testing the ripple for the
5V of audio.
Table-1
Protection
OPP(Over power protection)
Table-2
Status
Power On
Power Saving
Power Off
3.2 Backlight Power Supply
: AUO M190PW01 V0
Panel
Input Voltage
Input current
On/Off switch level
Brightness PWM duty
CCFL operating Voltage
CCFL Current
CCFL startup voltage
Operating frequency
Protect delay time
3.3 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
Condition
nominal AC input
H-sy
V-sy
nc
nc
on
on
off
on
on
off
off
off
--
--
Items
Lamp
Lamp
: 25 ± 5°C
: white
: 1366 x 768
: 700 mV ± 2%
: 30 minutes
Video
Power
active
≤ 25W
blanked
< 2W
blanked
< 2W
blanked
< 2W
--
< 1W
Specification
2 CCFL
13.5V~ 16.3 V
0.8A (Typ.), 1.0A (Max.)
5.5V≧Von≧ 2.0 V (on)
-0.3v ≤ Voff ≤ 0.8 V (off)
Extra PWM duty:18%~100%(DCR);35%~100%(CR);
PWM:High=3.3V(3.0~3.30V),Low=0.0V
734Vrms (Typ.),
DCR:1.6 mA (min.); CR:3.0 mA (min)
7.5mA (Typ.)
8.0mA (Max.)
≧1700 Vrms (0˚C)
40~80 KHz
> 1 second
2 CCFL
5
Acer –LCD-BV193HQ
See Table-1
See Table-2
Spec
32W ( min )
LED
Blue
Amber
Amber
Amber
Off

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