SCH

DELL VAL90 LA-9931P (REV 1.0).pdf

Schematic for Dell VAL90 · board LA-9931P · 933 KB · shared in 3 Telegram posts.

TXTAbout DELL VAL90 LA-9931P (REV 1.0) schematic

DELL VAL90 LA-9931P (REV 1.0) is a free Dell VAL90 motherboard schematic diagram for board LA-9931P. The PDF file is 933 KB and covers board revision 1.0. It was first posted on 3 Dec 2022 and is available in 3 Telegram channels.

The LA-9931P 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 a boardview, BIOS dumps and board packs — see all LA-9931P files.

Type
Schematics
Format
.pdf · PDF schematic
Size
933 KB
Brand
Dell
Board number
LA-9931P
Model
VAL90
Revision
1.0
First posted
3 Dec 2022
Last posted
11 Sept 2025
Sources
3

Tags

MSGFrom the Telegram post

DELL VAL90 LA-9931P (REV 1.0) SCHEMATIC

J1Download LA-9931P schematic from Telegram

R1How to download DELL VAL90 LA-9931P (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 DELL VAL90 LA-9931P (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 LA-9931P. 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.