Acer TravelMate 6492 Service Guide - Page 51

SYSTEM POWER PLANES Power Plane VCCRTC VL 15V 5VPCU 3VPCU 1.8V_S5 3V_S5 5V_S5 3VSUS +2.5V +1.8V +1.5V +3V Active State Always Always Always Always Always S0-S5 S0-S5 S0-S5 S0-S3 S0-S1 S0-S1 S0-S1 S0-S1 +5V S0-S1 CPU_VCCA VCC_CORE +VTT S0-S1 S0-S1 S0-S1 Control signal S5_ON S5_ON SUSON SUSON MAINON MAINON MAINON MAINON MAINON MAINON VRON VRON Device SB460, PC97551 MOS Gate TPS51120 NS PC97551, TPS51120 G913C, SB460 AO6402, RTL8100CL, MODEM USB SB460, MINI-PCI,AO6402 G913-C, Athlon64 AO6402, RS485, SB460, Athlon64 G966, MINIPCI CLK Gen., AO6402, Athlon64, SB485, DDR2 SO-DIMM, LCD, PCMCIA, MINI-PCI, CODEC, PC97551 SB460, CRT, LCD, PCMCIA, MINI-PCI, AUDIO, HDD, ODD, FAN, TP, Athlon64 CPU, RS485 Athlon64 CPU Athlon64 CPU, TPS51116 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 Description 90V AC ~ 264V AC 47 ~ 63 Hz Maximum input AC current Inrush current Efficiency 3.42A 50A@115VAC100A@230VAC 85% min. @110VAC / 65W load85% min. @240VAC / 65W load Output characteristics Output Voltage +19v Load range (Min) 0A Indicator: power LED (green) Load range (max) 3.42A Regulation +-5% Ripple & Noise 400mVp-p Chapter 1 41