Schematic Diagrams
B - 1
B.Sch
e
m
a
tic D
iag
rams
Appendix B: Schematic Diagrams
This appendix has circuit diagrams of the
W251HPQ/W251HPQ-C/W251HNQ/W251HNQ-C/W255HP/W255HN/
W258HPQ/W258HPQ-C/W258HNQ
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
PCH 1/9- RTC, HDA, SATA - Page B - 19
5VS, 3VS, 3.3VM, 1.5VS CPU - Page B - 36
Processor 1/7-DMI, FDI, PEG - Page B - 3
PCH 2/9- PCIE, SMBUS, CLK - Page B - 20
VDD3, VDD5 - Page B - 37
Processor 2/7- CLK, MISC - Page B - 4
PCH 3/9- DMI, FDI, PWRGD - Page B - 21
Power 0.85VS, 1.8VS, PEX VDD - Page B - 38
Processor 3/7- (DDR3) - Page B - 5
PCH 4/9- LVDS, DDI, CRT - Page B - 22
POWER 1.5V/1.05VS/0.75V - Page B - 39
Processor 4/7- Power - Page B - 6
PCH 4/9- OCI, USB, RSVD - Page B - 23
POWER VCORE1 - Page B - 40
Processor 5/7- GFX PWR - Page B - 7
PCH 6/9- GPIO, CPU - Page B - 24
POWER VCORE2 - Page B - 41
Processor 6/7- GND - Page B - 8
PCH 7/9- PWR - Page B - 25
Power VGA NVVDD - Page B - 42
Processor 7/7- RSVD - Page B - 9
PCH 8/9 POWER - Page B - 26
AC IN, CHARGER - Page B - 43
DDR3 SO-DIMM_0 - Page B - 10
PCH 3/9- GRD - Page B - 27
AUDIO BOARD - Page B - 44
DDR3 SO-DIMM_1 - Page B - 11
WLAN 3G MINI PCIE - Page B - 28
CLICK BOARD - Page B - 45
PANEL, INVERTER, CRT - Page B - 12
CCD, TPM, MULTI CON - Page B - 29
W251HPQ POWER SW BOARD - Page B - 46
VGA PCI-E Interace - Page B - 13
USB2.0, USB3.0 NEC - Page B - 30
W270HU BRIDGE ODD BOARD - Page B - 47
VGA Frame Buffer Interface - Page B - 14
Card Reader (JMC251 C) - Page B - 31
W270HU POWER SW BOARD - Page B - 48
VGA Frame Buffer A - Page B - 15
SATA ODD, LED, USB CHARGE - Page B - 32
Power Diagram - Page B - 49
VGA Frame Buffer C - Page B - 16
HDMI, RJ45 - Page B - 33
Power On SEQ - Page B - 50
VGA I/O - Page B - 17
AUDIO CODEC ALC269 - Page B - 34
VGA NVVDD Cecoupling - Page B - 18
KBC-ITE IT8518E - Page B - 35
Table B - 1
SCHEMATIC
DIAGRAMS
Version Note
The schematic dia-
grams in this chapter
are based upon ver-
sion 6-7P-W25p6-001
If your mainboard (or
other boards) are a lat-
er version, please
check with the Service
Center for updated di-
agrams (if required).
Summary of Contents for W251HNQ
Page 1: ...W251HPQ W251HPQ C W251HNQ W251HNQ C W255HP W255HN W258HPQ W258HPQ C W258HNQ ...
Page 2: ......
Page 24: ...Introduction 1 12 1 Introduction ...
Page 44: ...A 4 Top W255HP W255HN A Part Lists Top W255HP W255HN 灰色 非耐落 Figure A 2 Top W255HP W255HN ...
Page 46: ...A 6 Bottom A Part Lists Bottom Figure A 4 Bottom ...
Page 47: ...SATA BLU RAY COMBO A 7 A Part Lists SATA BLU RAY COMBO 非耐落 志精 Figure A 5 SATA BLU RAY COMBO ...
Page 48: ...A 8 DVD DUAL A Part Lists DVD DUAL Figure A 6 DVD DUAL 非耐落 志精 ...
Page 49: ...LCD A 9 A Part Lists LCD 頭厚 非耐落 中性 Figure A 7 LCD ...
Page 50: ...A 10 A Part Lists ...
Page 103: ...www s manuals com ...