Acer Aspire 5251 Service Guide - Page 15

System Block Diagram LVDS CRT HDMI Conn. MINI Card 1 WLAN GPP1 LAN(GbE) Broadcom BCM57780 GPP0 RJ45 LED RTC CKT. LID SW / MEDIA/B Power On/Off CKT. DC/DC Interface CKT. Fan Control Extend Card/B 1. USB X2 2. Cardreader Danube AMD S1G4 Processor uPGA-638 Package Champlain Hyper Transport Link 16 x 16 ATI RS880M uFCBGA-528 Memory BUS(DDR3) Dual Channel 1.5V DDRIII 1066~1333MHz 204pin DDRIII-SO-DIMM X2 BANK 0, 1, 2, 3 Thermal Sensor ADM1032 Clock Generator ICS9LPRS488 A link Express2 Gen1 ATI SB820M uFCBGA-605 LPC BUS ENE KB926 USB conn X 3 USB port 0,1,2 CMOS Camera USB port 5 Bluetooth Conn USB port 12 3.3V 48MHz 3.3V 24.576MHz/48Mhz USB HD Audio Mini card (WL)X1 USB port 8 3G/GPS WWAN USB port 9 Card Reader USB port 6 S-ATA Gen2 SATA HDD Conn. port 0 SATA ODD Conn. port 1 HDA Codec ALC272X Audio AMP Phone Jack x2 Touch Pad Int.KBD EC I/O Buffer BIOS Power Circuit Chapter 1 5