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Lenovo (LCFC) Y550-N18E-SVT-for-SMT · Schematic (82 pages)

File name: Y550-N18E-SVT-for-SMT.pdf

Lenovo (LCFC) Y550-N18E-SVT-for-SMT — Schematic, 82 pages. Main chips: IT8226E / IT8176 / IT8227E (EC), W25Q128JVSIQ / W25Q80EWSNIG (BIOS flash), N18E-FCBGA2228 / N18E-G1 / N18E-G3 (GPU), BQ24780SRUYR (charger). Covers: CPU, memory, graphics, display (LVDS / eDP / HDMI), USB, USB-C.

Lenovo (LCFC) Y550-N18E-SVT-for-SMT · Schematic (82 pages) — page 1 preview
Page 1 preview (watermarked, reduced size)
Type
Schematic / document
Size
4.3 MB
Pages
82
Added
2026-10-09
Brand
Lenovo (LCFC)
Board
Y550
MD5
01BE79092EBB621EB6866676DE16E8EB
Found in
Computers › Laptop › Lenovo ThinkPad › legion&L series › Legion5-15IMH05

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Main chips and parts

PartFunction
IT8226EEC (embedded controller)
IT8176EC (embedded controller)
IT8227EEC (embedded controller)
IT8176FN-56A-BXEC (embedded controller)
IT8227-LQFP128EC (embedded controller)
ITE8371LQFPEC (embedded controller)
IT8227E-192CXEC (embedded controller)
W25Q128JVSIQBIOS / SPI flash
W25Q80EWSNIGBIOS / SPI flash
N18E-FCBGA2228GPU
N18E-G1GPU
N18E-G3GPU
BQ24780SRUYRCharger
MP86941GQVT-ZPower (PWM)
NCP303150MNTWGPower (PWM)

Text from the first pages

Y550 M/B Schematics Document FE · Comet Lake H-Processor with DDR4 NV for N18E-G1/G0 GPU · VBOIS ROM · HDMI Conn. · Memory BUS (DDR4 non-ECC) DDR4-SO-DIMM x1 · Intel CPU · eDP x4 Lane · Memory BUS (DDR4 non-ECC) · eDP Conn · USB redriver · USB Right · USB Type-C · GPIO control · TypeC PDC · Intel PCH for USB Left(AOU port x1) · CC Logic · HDD Conn. · Comet Lake H · USB Back port x2 · SSD M.2 Conn. · /Optane Memory · Page 45 PCIe Port 9-12 Only · int. keyboard · Card Read conn · USB IO board · Page 45 PCIe Port 17-20 · M.2 Card (WLAN&BT) · LAN Realtek · M.2 CRF Module · Int. Camera · HD Audio

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