Schematic Diagrams
B - 1
B.Schematic Diagrams
Appendix B: Schematic Diagrams
Table B - 1
SCHEMATIC
DIAGRAMS
This appendix has circuit diagrams of the NP50DB / NP50DE 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 - 23 VDD3, VDD5 - Page B - 44
Processor 1/6 - Page B - 3 HDMI - Page B - 24 DDR 1.2V, 0.6VS, 2.5V - Page B - 45
Processor 2/6 - Page B - 4 PCH 1/9 - Page B - 25 VCore Output Stage - Page B - 46
Processor 3/6 - Page B - 5 PCH 2/9 - Page B - 26 VVC_Core, VCCGT, VCCSA - Page B - 47
Processor 4/6 - Page B - 6 PCH 3/9 - Page B - 27 1.05DX_VCCSTG, VCCSFR_OC, 1.8VA - Page B - 48
Processor 5/6 - Page B - 7 PCH 4/9 - Page B - 28 VCCGT, VCCSA Output Stage - Page B - 49
Processor 6/6 - Page B - 8 PCH 5/9 - Page B - 29 AC_In, Charger - Page B - 50
DDR4 CHA SO-DIMM_0 - Page B - 9 PCH 6/9 - Page B - 30 NVVDD 1 - Page B - 51
DDR4 CHB SO-DIMM_0 - Page B - 10 PCH 7/9 - Page B - 31 NVVDD 2 - Page B - 52
Straps and XTAL - Page B - 11 PCH 8/9 - Page B - 32 PEX_VDD - Page B - 53
VGA Frame Buffer Interface - Page B - 12 PCH 9/9 - Page B - 33 FBVDDQ - Page B - 54
VGA Frame Buffer A - Page B - 13 ALC293D - Page B - 34 DGPU Power Measurement - Page B - 55
VGA Frame Buffer A - Page B - 14 M.2 WLAN+BT, PCIE4X SSD - Page B - 35 1V8_RUN/AON, NV3V3 - Page B - 56
VGA Frame Buffer B - Page B - 15 USB, Charger - Page B - 36 Audio Board - Page B - 57
VGA Frame Buffer B - Page B - 16 Card Reader / LAN RTL8411B - Page B - 37 LED Board - Page B - 58
VGA I/O - Page B - 17 HDD, TP, Audio, Hall Conn - Page B - 38 Power Board - Page B - 59
NVIDIA Power Sequence - Page B - 18 LED, CCD, TPM, Power SW Conn - Page B - 39 Power Sequence - Page B - 60
NVIDIA GPIO Level Shift - Page B - 19 KBC-ITE IT5570 - Page B - 40
VGA PWR/GND/NCs - Page B - 20 RGB KB - Page B - 41
VGA NVVDD Coupling - Page B - 21 5V, 5VS, 3.3V, 3.3VS - Page B - 42
MDP - Page B - 22 VDD 1.05V, VCCIO, 3.3VA, VCCST - Page B - 43
Version Note
The schematic dia-
grams in this chapter
are based upon version
6-7P-NP504-002. If your
mainboard (or other
boards) are a later ver-
sion, please check with
the Service Center for
updated diagrams (if re-
quired).