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L490 NM-B931.pdf

Schematic for Lenovo L490 · board NM-B931 · 8.1 MB · shared in 1 Telegram post.

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TXTAbout L490 NM-B931 schematic

L490 NM-B931 is a free Lenovo L490 motherboard schematic diagram for board NM-B931. The PDF file is 8.1 MB. It was first posted on 15 Dec 2024 and is available in 1 Telegram channel.

The NM-B931 schematic shows the complete circuit of the motherboard: the always-on 3VALW / 5VALW rails, the battery charger, CPU core and memory power, USB, display, audio and the BIOS/EC section. Use it to trace no-power, no-display, short-circuit and not-charging faults on Lenovo boards.

For the same board you can also find a boardview and BIOS dumps — see all NM-B931 files.

Type
Schematics
Format
.pdf · PDF schematic
Size
8.1 MB
Brand
Lenovo
Board number
NM-B931
Model
L490
First posted
15 Dec 2024
Last posted
15 Dec 2024
Sources
1

Tags

NM-B931 schematicNM-B931 schematic diagramLenovo NM-B931Lenovo L490 schematicLenovo L490 motherboardLenovo L490 circuit diagramLenovo schematic pdflaptop schematic diagramLenovo laptop schematic diagramschematic free download

J1Download NM-B931 schematic from Telegram

R1How to download L490 NM-B931

  1. Press Download in Telegram. The post opens in the Telegram app, or on a t.me preview page — choose “View in Telegram”.
  2. You don’t need to join the channel. Tap the file L490 NM-B931.pdf to download it.
  3. Open it with Any PDF reader or SumatraPDF.

If a post was deleted, try another source above or search for NM-B931. Step-by-step help: downloading from Telegram.

.PDFWhat is a .pdf file and how to open it?

PDF schematic. A circuit diagram of the motherboard, page by page.

Open with:

  • Any PDF reader
  • SumatraPDF
  • Your web browser

Tip: Press Ctrl+F and search for a part (PU1, PQ3) or a net name (+3VALW, PWR_EN) to jump straight to it.