Acer ASPIRE 4252 Service Manual page 40

Card Reader
Item
Chipset
Features
System LED Indicator
Item
Drive Activity
Primary Battery charging state
AC Adapter
Item
Input rating
Maximum input AC current
Inrush current
Efficiency
Trusted Platform Module (TPM) (Not available with this model)
Item
Version
Hardware controller
System Power Management
Item
Initial
On(S0)
Standby(S1)
Suspend(S3)
Hibernate(S4)
Soft Off(S5)
Mechanical off is a condition where all power except the RTC battery has been removed from the system.
1. Initial to On state: When the AC adapter or Battery pack has been plugged into the system, the I WPC781
will be reset and initial all output pins then the system goes into Initial state and waiting for power on event. If
the power button is pressed then the system will go into the ON state.
2. ON to Standby state: The system will go into the Standby state when SB820M receives the POS command.
3. ON to Suspend state: The system will go into Suspend state when SB820M receives the S2R command.
4. ON to Hibernate state: The system will go into Hibernate state when SB820M receives the S2D command.
5. ON to Soft Off state: The system will go into Soft Off state when SB820M receives the Soft off command.
6. Standby to ON state: The system will go into ON state when the system receives any wake up events, for
example, keyboard, mouse.
7. Suspend to ON state: The system will go into ON state when the power button is pressed.
8. Hibernate to ON state: The system will go into ON state when the power button is pressed.
9. Soft Off to ON state: The system will go into ON state when the power button is pressed.
30
AU6437-GBL
Secure Digital™ (SD) Card, MultiMediaCard (MMC), Memory Stick™
(MS), Memory Stick PRO™ (MS PRO), xD-Picture Card™ (xD)
Power Led: Blue
Suspend: Amber
Amber: Battery Charging
100~240Vac, 50Hz~60Hz
264 Vac, 63Hz
264 Vac; (Cold Start) No damage
Meets EPA 2.0 level V requirements
Initial On
1
6
7
8
9
Specification
Specification
Specification
Specification
Standby Suspend
2 3
Hibernate Soft Off
4 5
Chapter 1