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Appendix B: Schematic Diagrams
This appendix has circuit diagrams of the N855HC notebook's PCB's. The following table indicates where to find the
appropriate schematic diagram.
Diagram - Page
System Block Diagram - Page B - 2
Processor 1/6 - Page B - 3
Processor 2/6 - Page B - 4
Processor 3/6 - Page B - 5
Processor 4/6 - Page B - 6
Processor 5/6 - Page B - 7
Processor 6/6 - Page B - 8
DDR4 CHA SO-DIMM - Page B - 9
DDR4 CHB SO-DIMM - Page B - 10
VGA PCI-E Interface - Page B - 11
VGA Frame Buffer Interface - Page B - 12
VGA Frame Buffer A - Page B - 13
VGA Frame Buffer A - Page B - 14
VGA Frame Buffer B - Page B - 15
VGA Frame Buffer B - Page B - 16
VGA I/O - Page B - 17
VGA NVVDD Coupling - Page B - 18
PS8625 - Page B - 19
Panel, Inverter - Page B - 20
CRT - Page B - 21
HDMI - Page B - 22
PCH 1/9 - Page B - 23
PCH 2/9 - Page B - 24
Diagram - Page
PCH 3/9 - Page B - 25
PCH 4/9 - Page B - 26
PCH 5/9 - Page B - 27
PCH 6/9 - Page B - 28
PCH 7/9 - Page B - 29
PCH 8/9 - Page B - 30
PCH 9/9 - Page B - 31
M.2 3G Card - Page B - 32
M.2 WLAN+BT, SSD - Page B - 33
ASM 1142 & 2142 - Page B - 34
ASM Power - Page B - 35
USB, Charger - Page B - 36
Card Reader / LAN RTL8411B - Page B - 37
HDD, Click TP, Audio, Hall Con.. - Page B - 38
LED, CCD, TPM, Power SW Con. - Page B - 39
Audio Codec ALC269 VC2 - Page B - 40
KBC-ITE IT8587 - Page B - 41
5V, 5VS, 3.3V, 3.3VS, 3.3VA - Page B - 42
VDD1.0, VCCIO - Page B - 43
VDD3, VDD5 - Page B - 44
DDR 1.2V/0.6VS, 2.5V - Page B - 45
VCore, VCCGT Output Stage - Page B - 46
VCC_Core, VCCGT - Page B - 47
Diagram - Page
1.0DX_VCCSTG/VCCSFR_OC, 3.3VA - Page B - 48
VCCSA - Page B - 49
AC_In, Charger - Page B - 50
NVVDD - Page B - 51
FBVDDQ - Page B - 52
PEX_VDD/3V3 - Page B - 53
Audio Board - Page B - 54
Power Switch Board - Page B - 55
Hall Sensor Board - Page B - 56
Click Board - Page B - 57
LED Board - Page B - 58
Power Sequence - Page B - 59
Schematic Diagrams
Table B - 1
SCHEMATIC
DIAGRAMS
Version Note
The
schematic
dia-
grams in this chapter
are based upon ver-
sion 6-7P-N8506-004.
If your mainboard (or
other boards) are a lat-
er
version,
please
check with the Service
Center for updated di-
agrams (if required).
B - 1
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