Schematic Diagrams
B-1
B.Schematic Diagrams
Appendix B: Schematic Diagrams
This appendix has circuit diagrams of the W330AU / W331AU notebook’s PCB’s. The following table indicates where
to find the appropriate schematic diagram.
Diagram - Page Diagram - Page Diagram - Page
System Block Diagram - Page B - 2 Panel, Inverter - Page B - 16 1.05V Series - Page B - 30
Haswell ULT (Display, Misc, CLK) - Page B - 3 LVDS_PS8625 - Page B - 17 VDD3, VDD5 - Page B - 31
Haswell ULT DDR Channel-A/B - Page B - 4 PS8613 - Page B - 18 1.5V or 1.35V/0.75VS PCH 1.5VS - Page B - 32
Haswell ULT RTC/HDA/SAT - Page B - 5 HDMI, Fan - Page B - 19 VCore - Page B - 33
Haswell ULT LPC/SPI/SMB/CL - Page B - 6 Audio Codec - Page B - 20 PW SW Board - Page B - 34
Haswell ULT Power Management - Page B - 7 USB Charge, USB 3.0, I/O Con - Page B - 21 IO Board - LAN - Page B - 35
Haswell ULT GPIOS - Page B - 8 CCD, TPM, TP, HDD, LED - Page B - 22 IO Board - USB - Page B - 36
Haswell ULT PCIE, USB, eDP - Page B - 9 NGFF_WLAN - Page B - 23 AC-In Conn - Page B - 37
Haswell ULT Power 1 - Page B - 10 NGFF_3G - Page B - 24 Click Board - Page B - 38
Haswell ULT Power 2 - Page B - 11 NGFF_SSD - Page B - 25 Power On / S4 Resume - Page B - 39
Haswell ULT Power-VSS - Page B - 12 KBC-ITE IT8587 - Page B - 26 Power Off / Into S4 - Page B - 40
Haswell ULT CFG, RSVD - Page B - 13 DC-In, Charger - Page B - 27 Into S3 - Page B - 41
DDR3 SO-DIMM_A_0 - Page B - 14 3.3V_SPI, 3.3VS, 3.3V_M, 3.3V - Page B - 28 S3 Resume - Page B - 42
DDR3 SO-DIMM_B_0 - Page B - 15 1.8VS, 1.5VS, 5V, 5VS - Page B - 29
Table B - 1
SCHEMATIC
DIAGRAMS
Version Note
The schematic dia-
grams in this chapter
are based upon ver-
sion 6-7P-W3305-006.
If your mainboard (or
other boards) are a lat-
er version, please
check with the Service
Center for updated di-
agrams (if required).