Schematic Diagrams
B - 1
B.Schematic Diagrams
Appendix B: Schematic Diagrams
Table B - 1
SCHEMATIC
DIAGRAMS
This appendix has circuit diagrams of the NP50HP / NP55HP-HM 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 Straps and XTAL - Page B - 26 LED, CCD, TPM, Power SW Bd. - Page B - 50
Processor 1/6 - Page B - 3 NVIDIA Power Sequence - Page B - 27 KBC-ITE IT5570 - Page B - 51
Processor 2/6 - Page B - 4 OVR-M - Page B - 28 RGB KB - Page B - 52
Processor 3/6 - Page B - 5 mDP - Page B - 29 5V, 5VS, 3.3V, 3.3VS - Page B - 53
Processor 4/6 - Page B - 6 Panel, Inverter - Page B - 30 VCCST, VCCSTG, VCCSFR - Page B - 54
Processor 5/6 - Page B - 7 HDMI - Page B - 31 VDD3, VDD5 - Page B - 55
Processor 6/6 - Page B - 8 PCH 1/8 - Page B - 32 DDR 1.2V / 0.6VS, 2.5V - Page B - 56
DDR4 CHA SO-DIMM_0 - Page B - 9 PCH 2/8 - Page B - 33 VCCIN - Page B - 57
DDR4 CHB SO-DIMM_0 - Page B - 10 PCH 3/8 - Page B - 34 VCCIN Output - Page B - 58
VGA PCI-E Interface - Page B - 11 PCH 4/8 - Page B - 35 VNN / V1.05A - Page B - 59
Frame Buffer Partition A/B - Page B - 12 PCH 5/8 - Page B - 36 VCCIN AUX - Page B - 60
Frame Buffer A - Page B - 13 PCH 6/8 - Page B - 37 Charger - Page B - 61
Frame Buffer A - Page B - 14 PCH 7/8 - Page B - 38 NVVDD1 - Page B - 62
Frame Buffer B - Page B - 15 PCH 8/8 - Page B - 39 NVVDD2 - Page B - 63
Frame Buffer B - Page B - 16 Retimer 1/2 - Page B - 40 PEX_VDD - Page B - 64
Frame Buffer Partition - Page B - 17 Retimer 2/2 - Page B - 41 FBVDDQ - Page B - 65
Frame Buffer C - Page B - 18 PD65993, Type-C - Page B - 42 1V8_AON, NV3V3, 3.3VA - Page B - 66
Frame Buffer C - Page B - 19 Audio Codec - Page B - 43 Audio Board + Redriver - Page B - 67
GPU GND - Page B - 20 M.2 WLAN+BT, PCIE 4X SSD - Page B - 44 LED Board - Page B - 68
GPU NVVDD, FBVDDQ - Page B - 21 M.2 PCIE 4X SSD - Page B - 45 Power SW Board - Page B - 69
GPU Decoupling - NVVDD - Page B - 22 Type-C & A - Page B - 46 Power Sequence - Page B - 70
GPU Decoupling - FBVDDQ - Page B - 23 LAN RTL8111H - Page B - 47
Misc - GPIO, I2C, ROM - Page B - 24 Card Reader - Page B - 48
IFP I/O Interface - Page B - 25 HDD, Click TP, Audio - Page B - 49
Version Note
The schematic dia-
grams in this chapter
are based upon version
6-7P-NP5H4-003. If
your mainboard (or oth-
er boards) are a later
version, please check
with the Service Center
for updated diagrams (if
required).