SCH

Dell Inspirion 15 5551 AAL11 AAL21 LA-B912P.pdf

Schematic for Dell AAL11 / AAL21 · board LA-B912P · 2.1 MB · shared in 3 Telegram posts.

TXTAbout Dell Inspirion 15 5551 AAL11 AAL21 LA-B912P schematic

Dell Inspirion 15 5551 AAL11 AAL21 LA-B912P is a free Dell AAL11 / AAL21 motherboard schematic diagram for board LA-B912P. The PDF file is 2.1 MB. It was first posted on 14 Feb 2023 and is available in 3 Telegram channels.

The LA-B912P 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 Dell boards.

For the same board you can also find BIOS dumps and board packs — see all LA-B912P files.

Type
Schematics
Format
.pdf · PDF schematic
Size
2.1 MB
Brand
Dell
Board number
LA-B912P
Model
AAL11, AAL21
First posted
14 Feb 2023
Last posted
11 Sept 2025
Sources
3

Tags

MSGFrom the Telegram post

Dell Inspirion 15 5551 AAL11 AAL21 LA-B912P Schematic

J1Download LA-B912P schematic from Telegram

R1How to download Dell Inspirion 15 5551 AAL11 AAL21 LA-B912P

  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 Dell Inspirion 15 5551 AAL11 AAL21 LA-B912P.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 LA-B912P. 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.