SCH

lenovo-legion-y520-15ikbn-lcfc-nm-b191-rev-1-0.pdf

Schematic for Lenovo · board NM-B191 · 1.7 MB · shared in 5 Telegram posts.

TXTAbout lenovo-legion-y520-15ikbn-lcfc-NM-B191-rev-1-0 schematic

lenovo-legion-y520-15ikbn-lcfc-NM-B191-rev-1-0 is a free Lenovo motherboard schematic diagram for board NM-B191. The PDF file is 1.7 MB and covers board revision 1. It was first posted on 19 Jul 2020 and is available in 5 Telegram channels.

The NM-B191 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, BIOS dumps and board packs — see all NM-B191 files.

Type
Schematics
Format
.pdf · PDF schematic
Size
1.7 MB
Brand
Lenovo
Board number
NM-B191
Revision
1
First posted
19 Jul 2020
Last posted
13 Sept 2025
Sources
5

Tags

J1Download NM-B191 schematic from Telegram

R1How to download lenovo-legion-y520-15ikbn-lcfc-NM-B191-rev-1-0

  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 lenovo-legion-y520-15ikbn-lcfc-nm-b191-rev-1-0.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-B191. 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.