Acer A231H, Руководство по обслуживанию

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Acer
Acer –LCD-A231H
3.
Electrical and Optical Characteristics and Performance
3.1 Main Power Supply
3.1.1 Input characteristics
Items Condition Spec Note
AC Input Voltage range Universal input full range 90~264Vac
AC Input Voltage rating Universal input full range 100~240Vac
AC input frequency range 90~264Vac 47~63Hz
AC input frequency rating 100~240Vac 50~60Hz
100Vac 1.5A(max) AC Input Current
240Vac 0.8A(max)
100Vac,cold star,25°C 35A (max)
Inrush Current
240Vac,cold star,25°C 70A(max)
See Note2
AC-DC power Efficiency
DC output full loading ≥ 80%
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.
Hot star not component be damaged.
3.1.2 Output characteristics
Items Condition Spec Note
+25V output <800mv
+5V output <500mv
Audio 5V output <500mv
With system See note 3
+25V output <480mv
+5V output <100mv
Ripple and Noise
Audio 5V output <100mv
With dummy Load
25V loading:0.3A~1.4A
5V loading:0.75A~1.5A
Audio 5V: 0A~1.2A Vcc25V:23.2V~28V
Vcc5V: 4.75V~5.25V
Audio 5V: 4.95V~5.45V
For system active
DC Output Voltage
25v loading:0.1A~1.5A
5V loading: 0A Vcc25V: 23.8V~30V
Vcc5V: 4.75V~5.25V For power saving or DC
off
DC output loading
capability
Vcc5V/1.8A,
Vcc25V/1.4A
Audio 5V: 1.5A
Rise Time
<20mS
Dynamic load change
Hold-up time
AC input: 100V~240V >10mS
Overshoot
<10%
Turn on delay time
2S
Power management See Table-1
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 Condition Spec
OPP nominal AC input 60W ( min )
SCP(short circuit protection) with auto-recovery function
OVP(Over voltage protection) Auto recovery <output capacitor voltage