SCH

vinafix_com_ideapad_320_15IKB_DG421_DG521_DG721_NM_B241_NM_B242.pdf

Schematic for Lenovo 15IKB / DG421 / DG521 · board NM-B241, NM-B242 · 20.8 MB · shared in 7 Telegram posts.

Download in Telegram Similar files

TXTAbout vinafix com ideapad 320 15IKB DG421 DG521 DG721 NM-B241 NM-B242 schematic

vinafix com ideapad 320 15IKB DG421 DG521 DG721 NM-B241 NM-B242 is a free Lenovo 15IKB / DG421 / DG521 motherboard schematic diagram for board NM-B241 / NM-B242. The PDF file is 20.8 MB. It was first posted on 17 Jul 2020 and is available in 7 Telegram channels.

The NM-B241 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-B241 files.

Type
Schematics
Format
.pdf · PDF schematic
Size
20.8 MB
Brand
Lenovo
Board number
NM-B241, NM-B242
Model
15IKB, DG421, DG521
First posted
17 Jul 2020
Last posted
12 Sept 2025
Sources
7

Tags

NM-B241 schematicNM-B241 schematic diagramLenovo NM-B241NM-B242 schematicNM-B242 schematic diagramLenovo NM-B242Lenovo 15IKB schematicLenovo 15IKB motherboardLenovo 15IKB circuit diagramLenovo schematic pdflaptop schematic diagramLenovo laptop schematic diagramschematic free download

MSGFrom the Telegram post

NM-B241 SHEMATIC

J1Download NM-B241 schematic from Telegram

R1How to download vinafix com ideapad 320 15IKB DG421 DG521 DG721 NM-B241 NM-B242

  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 vinafix_com_ideapad_320_15IKB_DG421_DG521_DG721_NM_B241_NM_B242.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-B241. 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.