Acer TravelMate 290 Series, Service Manual, Page: 37 / 115

Chapter 1 29
Input Characteristics
Input Rated Voltage 100V/240V
Input Voltage Range 90VAC to 270VAC
Input Frequency Range 47Hz to 63Hz
Input Voltage Harmonic
Distortion larger than or equal to 8%
Input Current (100Vac, 240Vac /
3.5A loag) larger than or equal to 1.5A
Output Characteristics
Output Rated Voltage 20V
Output Current 0A to 3.5A
Output Voltage Setting 19.5V to 21V
Output Voltage Ripple and
Noise(90Vac/70W load; 264Vac/
70W load) larger than or equal to 300mVp-p
Dynamic Load Change 19.5~21V
Protection Characteristics
Over Voltage Protection 25V
Power Management
ACPI Mode Power Management
Mech. Off (G3) All devices in the system are turned off completely.
Soft Off (G2/S5) OS initiated shutdown. All devices in the system are turned off
completely.
Working (G0/S0) Individual devices such as the CPU and hard disk may be power
managed in this state.
Sleeping State (S3) CPU Power Down
VGA Power Down
PCMCIA Suspend
Audio Power Down
Hard Disk Power Down
Super I/O Power Down
Sleeping State (S4) Also called Hibernate state. System saves all system states and
data onto the disk prior to power off the whole system.
Environmental Requirements
Item Specification
Temperature
Operating
+5 ~ +35
°
C
Non-operating
-20 ~ +65
°
C
Non-operating
-20 ~ +65
°
C (storage package)
Humidity
Operating 20% to 80% RH
Non-operating 20% to 80% RH
AC Adapter
Item Specification