Acer TravelMate 6492 Series Service Manual page 51

SYSTEM POWER PLANES
Active
Power Plane
State
VCCRTC Always
VL Always
15V Always
5VPCU Always
3VPCU Always
1.8V_S5 S0-S5
3V_S5 S0-S5
5V_S5 S0-S5
3VSUS S0-S3
+2.5V S0-S1
+1.8V S0-S1
+1.5V S0-S1
+3V S0-S1
+5V S0-S1
CPU_VCCA S0-S1
VCC_CORE S0-S1
+VTT S0-S1
1. VL/5VPCU/3VPCU: These power planes will always be turned on unless the AC adapter and battery pack is
removed from the system. 5VPCU is the power source of +5V and 5V_S5 and 3VPCU is the power source of
+3V, 3VSUS and 3V_S5.
2. VCCRTC: This power plane will always be turned on even when the AC adapter and battery pack is removed
form the system. This battery backed up power is used by the RTC module inside the SB460.
3. 1.8V_S5/3V_S5/5V_S5: These power plane are used by SB460 Suspend/Resume power plane.
4. 3VSUS: These power planes will be stay on even when the system in the Suspend state
5. +1.5V/+1.8V/+3V/+5V: These power plane will be switch off when the system goes into the suspend mode.
6. 3V_S5/+5V_S5: This power plane will be stay on in S0 - S4 state and is used by devices that support D3 cold
wake up.
Input Characteristics
Functions
Input voltage
Input frequency range
Maximum input AC current
Inrush current
Efficiency
Output characteristics
Output Voltage
+19v
Indicator: power LED (green)
Chapter 1
Control
Device
signal
- SB460, PC97551
-
- MOS Gate
- TPS51120
- NS PC97551, TPS51120
S5_ON G913C, SB460
S5_ON AO6402, RTL8100CL, MODEM
SUSON USB
SUSON SB460, MINI-PCI,AO6402
MAINON G913-C, Athlon64
MAINON AO6402, RS485, SB460, Athlon64
MAINON G966, MINIPCI
MAINON CLK Gen., AO6402, Athlon64, SB485, DDR2 SO-DIMM, LCD,
PCMCIA, MINI-PCI, CODEC, PC97551
MAINON SB460, CRT, LCD, PCMCIA, MINI-PCI, AUDIO, HDD, ODD,
FAN, TP,
MAINON Athlon64 CPU, RS485
VRON Athlon64 CPU
VRON Athlon64 CPU, TPS51116
Description
90V AC ~ 264V AC
47 ~ 63 Hz
3.42A
50A@115VAC100A@230VAC
85% min. @110VAC / 65W load85% min. @240VAC / 65W load
Load range (Min) Load range (max)
0A 3.42A
Regulation Ripple & Noise
+-5% 400mVp-p
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