Acer TravelMate 270 Service Manual page 38

LCD
Item
Supports colors
Optical Specification
Brightness control
Contrast control
Suspend/Standby
control
Electrical Specification
Supply voltage for
LCD display (V)
Supply voltage for
LCD backlight
(Vrms)
AC Adapter
Item
Vendor & model name
Input Requirements
Maximum input current (A,
@90Vac, full load)
Nominal frequency (Hz)
Frequency variation range (Hz)
Nominal voltages (Vrms)
Inrush current
Efficiency
Output Ratings (CV mode)
DC output voltage
Noise + Ripple
Output current
Output Ratings (CC mode)
DC output voltage
Constant output
Dynamic Output Characteristics
Start-up time
Hold up time
Over Voltage Protection (OVP)
Short circuit protection
Electrostatic discharge (ESD)
Dielectric Withstand Voltage
Primary to secondary
Leakage current
Regulatory Requirements
Chapter 1
262K 262K
keyboard keyboard
hotkey hotkey
No No
Yes Yes
3.3 3.3
690 690
ADAPTER ADP-65DB BG65W 3 PINS
1.8 A @ 90Vac
0.9 A @ 180Vac
47 - 63
47 - 63
90 - 265
The maximum inrush current will be less than 50A and 100A when the adapter
is connected to 115Vac(60Hz) and 230Vac(50Hz) respectively.
It should provide an efficiency of 84% minimum, when measured at maximum
load under 115V(60Hz).
19.0V including the effects of line voltage variation, load current, ripple and
noise
300mvp-pmax (20MHz bandwidth) for resistor load
0 A (min.)
19.0
3.5A
3 sec. (@115Vac)
6 ms min. (@120 Vac input, full load)
25 V
Output can be shorted without damage, and auto recovery
15kV (at air discharge)
8kV (at contact discharge)
4242 Vdc for 1 second
60uA at 254Vac
1. FCC class B requirements(USA)
2. VDE class B requirements(German)
3. VCCI classII requirements(Japan)
Specification
262K
keyboard
hotkey
No
Yes
3.3
690
Specification
3.5A (max.)
262K 262K
keyboard keyboard
hotkey hotkey
No No
Yes Yes
3.3 3.3
690 690
33