asus UL20A free download

File name UL20A.pdf

A B C D E UL20A SCHEMATIC Revision 2.0 1 1 PAGE Content PAGE Content SYSTEM PAGE REF. 3 CPU-PENRYN ULV FSB (1) 4 CPU-PENRYN ULV POWER (2) 5 CPU-CAPACITORS 7 DIM-DDR3 SO-DIMM CHANNEL A 8 DIM-DDR3 SO-DIMM CHANNEL B 9 DIM-DDR3 VREF & TERMINATION 10 NB_-GS45-HOST (1) POWER PAGE REF. 11 NB_-GS45-DMI (2) 2 12 NB_-GS45-DISPLAY (3) 80_POWER_VCORE 2 13 NB_-GS45-DDR2 BUS (4) 81_POWER_SYSTEM 14 NB_-GS45-POWER (5) 82_POWER_I/O_+1.05VO 15 NB_-GS45-POWER (6) 83_POWER_I/O_DDR & VTT 16 NB_-GS45-GND (7) 84_POWER_I/O_ +1.8V 17 NB_-GS45-STRAPPING (8) 88_POWER_CHARGER 20 SB_ICH9M-HDA, IDE, LPC (1) 90_POWER_DETECT 21 SB_ICH9M-PCI,PCIE,DMI,USB(2) 91_POWER_LOAD SWITCH 22 SB_ICH9M-GPIO, PMGT (3) 92_POWER_PROTECT 23 SB_ICH9M-POWER_GND (4) 93_POWER_SIGNAL 24 SB_ICH9M-SPI ROM & HDCP (5) 94_POWER_FLOWCHART 29 CLK-RTM875T-336-GRT 95_POWER_LED_VCC BOOST 3 30 KBC-ITE8512 3 31 ROM-FLASH ROM,TOUCH PAD,KB 36 AUD-ALC 269 37 AUD-MICROPHONE 38 AUD-HP&SPK CONN 44 BUG-DEBUG PORT 46 CRT-LVDS CONN 49 VID CONTROLLER 50 FAN-THERMAL SENSOR, FAN CONN 51 XDD-SATA HDD CONN 52 USB-USB 2.0 CONN*2 56 LED- PWR,LED,FPC CONN 4 57 DSG-DISCHARGE CIRCUIT 4 60 DC_-DC, BATT CONN 65 ME_-SCREW HOLE, SMT NUT 67 CMO-CMOS CAMERA 68 Board to Board CONN 96 History 97 Power On Sequence 5 5 Title : PAGE REF. ASUSTeK COMPUTER INC Engineer: Jerry Yu