Acer B193, Service Manual

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5
AC Input Current 100Vac
240Vac 1.2A(max)
0.6A(max)
AC Frequency Range 100Vac
240Vac 50Hz – 60Hz
100Vac,cold star,25°C 40A (max)
Inrush Current
240Vac,cold star,25°C 60A(max)
See Note2
Regulator Efficiency
DC output full loading ≥ 75%
+16V output <350mv
Ripple and Noise
+5V output <150mv
16v loading: 0.3A~2.0A
5v loading: 0.75A~1.5A
Vcc16V(15.2V~18.5V)
DC Output Voltage
5v loading: 0.04A~1.5A Vcc5V(4.95V~5.45V)
See Note 3
DC output loading capability
Vcc5V/1.5A,
Vcc16V/2.0A
Power consumption with Audio ≤ 45W
Protection See Table-1
Power management See Table-2
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
Note3. DC output voltage when no loading must meet load component de-rating standard.
+16v with no load ,16v output voltage 20v (max)
Table-1
Protection Condition Spec
OPP(Over power protection) nominal AC input 50W ( min )
SCP(short circuit protection) with auto-recovery function
Table-2
Status
H-sy
nc
V-sy
nc
Video Power LED
Power On on on active
≤
45W BLUE
off on blanked < 2W Amber
on off blanked < 2W Amber Power Saving
off off blanked < 2W Amber
Power Off -- -- -- < 1W Off
3.2 Backlight Power Supply
Panel
: INL MT190AW01 V.5
Items Specification
Lamp
4 CCFL
Input Voltage 15.2V~18.5V
Input current
1.6A (Typ.), 2.0A (Max.)
On/Off switch level
5.5V
≧
Von
≧
2.0 V (on)
-0.3v ≤ Voff ≤ 0.8 V (off)
Brightness PWM duty
35%~100%
PWM:High=3.3V(3.0~3.6V),Low=0.0V
CCFL operating Voltage
680Vrms (Typ.),