Schematic Diagrams
B - 1
B.Schematic Diagrams
Appendix B: Schematic Diagrams
Table B - 1
SCHEMATIC
DIAGRAMS
This appendix has circuit diagrams of the W550SU1 / W555SUW 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 Lynx 3/9 - DMI, FDI, PWRGD - Page B - 17 5VS, 3VS, 1.5VS CPU - Page B - 32
Processor 1/7- DMI, FDI, PEG - Page B - 3 Lynx 4/9 - CRT, LVDS, PCI - Page B - 18 1.05V - Page B - 33
Processor 2/7- CLK, MISC - Page B - 4 Lynx 5/9 - GPIO, MISC, NCTF - Page B - 19 VDD3, VDD5 - Page B - 34
Processor 3/7- DDR3 - Page B - 5 Lynx 6/9 - PCIe, USB - Page B - 20 DDR 1.5 or 1.35V, 0.75VS PCH 1.5VS - Page B - 35
Processor 4/7- Power - Page B - 6 Lynx 7/9 - PWR - Page B - 21 VCore - Page B - 36
Processor 5/7- GFX PWR - Page B - 7 Lynx 8/9 - POWER - Page B - 22 Charger, DC IN - Page B - 37
Processor 6/7- GND - Page B - 8 Lynx 9/9 - CLK, GND - Page B - 23 Audio Board - Page B - 38
Processor 7/7- RSVD - Page B - 9 WLAN, 3G, MSATA - Page B - 24 Power Switch Board - Page B - 39
DDR3 SO-DIMM_0 - Page B - 10 HDD, CCD, TPM, Power Con - Page B - 25 Audio Board - Page B - 40
DDR3 SO-DIMM_1 - Page B - 11 USB3.0, LED, USB Charger - Page B - 26 Ext. ODD Board - Page B - 41
PS8625 - Page B - 12 Card Reader (RTL8411B) - Page B - 27 LID Switch Board - Page B - 42
Panel, Inverter - Page B - 13 TP, Audio Con, G-Sensor - Page B - 28 Touch Panel Board - Page B - 43
CRT - Page B - 14 HDMI, RJ45, Fan - Page B - 29 Audio Board - Page B - 44
Lynx 1/9 - RTC, HDA, SATA - Page B - 15 ALC269Q, VT1802S - Page B - 30 Power Switch Board - Page B - 45
Lynx 2/9 - LPC, SMBUS, SPI, C-LINK - Page B - 16 KBC-ITE IT8587 - Page B - 31 Power On SEQ - Page B - 46
Version Note
The schematic dia-
grams in this chapter
are based upon ver-
sion 6-7P-W5409-002.
If your mainboard (or
other boards) are a lat-
er version, please
check with the Service
Center for updated di-
agrams (if required).
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