Acer Aspire 1800, Service Manual

Page: 39 / 97

Chapter 1 31
DC output voltage 18.0 ~ 20.0
Constant output 7.9A
Dynamic Output Characteristics
Start-up time
3 sec. (@115 Vac and 230Vac full load)
Hold up time 5ms min. (@115 Vac input, full load)
Over Voltage Protection
(OVP) 25V
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 60uA at 240Vac/60Hz
Regulatory Requirements 1. FCC class B requirements (USA)
2. VDE class B requirements (German)
3. VCCI classII requirements (Japan)
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 (storage package)
Humidity
Operating
10% ~ 90% without condensation
Altitude Operating sea level 0 to 10,000ft
Storage sea level 0 to 40,000ft
AC Adapter
Item Specification