SCH

Lenovo_Ideapad_320_15IKB_EG521_EG522_EZ511_EG721_NM_B452_DIS.pdf

Schematic for Lenovo 15IKB / EG521 / EG522 · board NM-B452 · 32.6 MB · shared in 2 Telegram posts.

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TXTAbout Lenovo Ideapad 320 15IKB EG521 EG522 EZ511 EG721 NM-B452 DIS schematic

Lenovo Ideapad 320 15IKB EG521 EG522 EZ511 EG721 NM-B452 DIS is a free Lenovo 15IKB / EG521 / EG522 motherboard schematic diagram for board NM-B452. The PDF file is 32.6 MB. It was first posted on 13 Sept 2021 and is available in 2 Telegram channels.

The NM-B452 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, board packs and BIOS dumps — see all NM-B452 files.

Type
Schematics
Format
.pdf · PDF schematic
Size
32.6 MB
Brand
Lenovo
Board number
NM-B452
Model
15IKB, EG521, EG522
Notes
DIS (discrete graphics)
First posted
13 Sept 2021
Last posted
28 Apr 2022
Sources
2

Tags

NM-B452 schematicNM-B452 schematic diagramLenovo NM-B452Lenovo 15IKB schematicLenovo 15IKB motherboardLenovo 15IKB circuit diagramLenovo schematic pdflaptop schematic diagramLenovo laptop schematic diagramschematic free download

J1Download NM-B452 schematic from Telegram

R1How to download Lenovo Ideapad 320 15IKB EG521 EG522 EZ511 EG721 NM-B452 DIS

  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_Ideapad_320_15IKB_EG521_EG522_EZ511_EG721_NM_B452_DIS.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-B452. 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.