NM-C991

The NM-C991 board comes from LCFC. ChambersDesignInc.com has indexed 2 files for this board — 1 schematic and 1 boardview.

First posted in September 2025 in Schematics & Boardviews Archive.

Schematics 1

FileSizeRevAddedSource
GY552 NM-C991 PDF
Schematic.pdf
2.2 MB
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Boardviews 1

FileSizeRevAddedSource
1.4 MB
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Board facts

Board numberNM-C991
Designed byLCFC
Platform groupNM-C
First seen2025-09-01
Source channelsSchematics & Boardviews Archive
About the numberLCFC is Lenovo's joint venture with Compal; its main boards use NM- numbers and sub-boards NS- numbers.

What these files are for

A schematic is the circuit diagram of the main board: power rails, power-up sequence, component values and net names. It is the reference for measuring voltages and tracing a fault.

A boardview is the component placement map of the PCB: click a part or a net and the viewer highlights where it is and what it connects to. Used together with the schematic to find test points.

Tools to open these files

FormatWhat it isOpen with
.pdfPDF schematicany PDF reader; Sumatra PDF and Foxit handle large schematics well
.rarRAR archive7-Zip or WinRAR
.tvwTebo-ICT .tvw boardviewFlexBV or Tebo-ICT View

Questions

Is there a boardview for NM-C991?

Yes, 1 boardview file in .tvw format.

Who designed the NM-C991 board?

NM-C991 is an LCFC board number used by Lenovo.

Where do the download links go?

Each button opens the original public Telegram post the file was shared in. ChambersDesignInc.com only indexes and cross-references those posts.