Schematic Diagrams
B - 1
B.Schematic Diagrams
Appendix B: Schematic Diagrams
Table B - 1
SCHEMATIC
DIAGRAMS
This appendix has circuit diagrams of the W251EUQ/W253EUQ/W255EU/W258EUQ notebook’s PCB’s. The follow-
ing table indicates where to find the appropriate schematic diagram.
Diagram - Page Diagram - Page Diagram - Page
System Block Diagram - Page B - 2 PantherPoint - M 6/9 - Page B - 19 Power 0.85VS - Page B - 36
Ivy Bridge Processor 1/7 - Page B - 3 PantherPoint - M 7/9 - Page B - 20 Power V-Core1 - Page B - 37
Ivy Bridge Processor 2/7 - Page B - 4 PantherPoint - M 8/9 - Page B - 21 Power V-Core2 - Page B - 38
Ivy Bridge Processor 3/7 - Page B - 5 PantherPoint - M 9/9 - Page B - 22 Charger, AC In - Page B - 39
Ivy Bridge Processor 4/7 - Page B - 6 USB 3.0, Power, WLAN - Page B - 23 Click Board - Page B - 40
Ivy Bridge Processor 5/7 - Page B - 7 CCD, 3G, TPM - Page B - 24 Audio Board/USB - Page B - 41
Ivy Bridge Processor 6/7 - Page B - 8 Card Reader, LAN RTL8411 - Page B - 25 Power Switch & LID Board - Page B - 42
Ivy Bridge Processor 7/7 - Page B - 9 LAN (RTL8411), SATA HDD, ODD - Page B - 26 External ODD Board - Page B - 43
DDR3 SO-DIMM_0 - Page B - 10 USB 3.0 TI TUSB7320 - Page B - 27 Power Sequence - Page B - 44
DDR3 SO-DIMM_1 - Page B - 11 KBC-ITE IT8518 - Page B - 28
LVDS, Inverter - Page B - 12 LED, MDC - Page B - 29
HDMI, CRT - Page B - 13 Audio Codec ALC269 - Page B - 30
PantherPoint - M 1/9 - Page B - 14 USB Charger, Fan, TP, Multi-Conn - Page B - 31
PantherPoint - M 2/9 - Page B - 15 System Power - Page B - 32
PantherPoint - M 3/9 - Page B - 16 VDD3, VDD5 - Page B - 33
PantherPoint - M 4/9 - Page B - 17 Power 1.5V/0.75V/1.8VS - Page B - 34
PantherPoint - M 5/9 - Page B - 18 Power 1.05VS - Page B - 35
Version Note
The schematic dia-
grams in this chapter
are based upon ver-
sion 6-7P-W25S6-003.
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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