Acer Aspire 1400, Service Manual

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Chapter 1 33
Supports colors 262K 262K 262K 262K 262K
Optical Specification
Brightness control keyboard
hotkey keyboard
hotkey keyboard
hotkey keyboard
hotkey keyboard
hotkey
Contrast control No No No No No
Suspend/Standby
control Yes Yes Yes Yes Yes
Electrical Specification
Supply voltage for
LCD display (V) 3.3 3.3 3.3 3.3 3.3
Supply voltage for
LCD backlight
(Vrms) 690 690 690 690 690
AC Adapter
Item Specification
Vendor & model name ADAPTER ADP-90FB RevF90W 3 PINS
Input Requirements
Maximum input current (A,
@90Vac, full load) 1.8 A @ 90Vac
0.9 A @ 180Vac
Nominal frequency (Hz) 47 - 63
Frequency variation range (Hz) 47 - 63
Nominal voltages (Vrms) 90 - 264
Inrush current The maximum inrush current will be less than 50A and 100A when the adapter
is connected to 115Vac(60Hz) and 230Vac(50Hz) respectively.
Efficiency It should provide an efficiency of 83% minimum, when measured at maximum
load under 115V(60Hz).
Output Ratings (CV mode)
DC output voltage +18.8V~20.0V including the effects of line voltage variation, load current,
ripple and noise
Noise + Ripple 300mvp-pmax (20MHz bandwidth) for resistor load
Output current 0 A (min.) 4.74 A (max.)
Output Ratings (CC mode)
DC output voltage 18.8~20
Constant output 4.74A
Dynamic Output Characteristics
Start-up time 3 sec. (@115Vac)
Hold up time 5 ms min. (@115 Vac input, full load)
Over Voltage Protection (OVP) 26 V
Short circuit protection Output can be shorted without damage, and auto recovery
Electrostatic discharge (ESD) 15kV (at air discharge)
8kV (at contact discharge)
Dielectric Withstand Voltage
Primary to secondary 4242 Vdc for 1 second
Leakage current 100uA at 254Vac
Regulatory Requirements 1. FCC class B requirements(USA)
2. VDE class B requirements(German)
3. VCCI classII requirements(Japan)
LCD
Item Specification