Laptop motherboard

LCFC EG521 EG522 NM-B451 Rev 0.2 UMA Schematic

This page lists the schematic for LCFC EG521 EG522 NM-B451 Rev 0.2 UMA, a laptop motherboard by Lenovo. The board was designed and built by Compal under board number NM-B451. It is a integrated graphics (UMA) version. The same board number appears in 6 more files, including Compal listings — see below.

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Brand
Lenovo
Category
Laptops
Model
EG521 EG522
Manufacturer (ODM)
Compal
Board number
NM-B451
Revision
0.2
Graphics
integrated graphics (UMA)
Contents
Schematic
Available on
Telegram
File name
LCFC_EG521_EG522_NM-B451 Rev 0.2 UMA PDF.rar

Same board number 6

All files for NM-B451

More Lenovo EG521 files 1

Lenovo EG521 overview

Other Lenovo laptops

All Lenovo files

Questions about this file

What is the board number of LCFC EG521 EG522 NM-B451 Rev 0.2 UMA?
The file is for board NM-B451, made by Compal. Check that the same number is printed on your PCB before you rely on the file. Where to find it.
What can I do with the schematic?
Use the power-sequence and power-rail pages to find where a no-power or no-image fault starts, then locate the parts with a boardview. No-power diagnosis plan.
Is the download free?
Yes. The button opens post #7885 in the public Telegram channel @schematicslaptop, where the file can be downloaded with a free Telegram account.

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