SCH

U450 LA-5581P.pdf

Schematic for Compal U450 · board LA-5581P · 654 KB · shared in 8 Telegram posts.

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TXTAbout U450 LA-5581P schematic

U450 LA-5581P is a free Compal U450 motherboard schematic diagram for board LA-5581P. The PDF file is 654 KB. It was first posted on 6 Sept 2017 and is available in 8 Telegram channels.

The LA-5581P 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 laptop boards.

For the same board you can also find BIOS dumps and board packs — see all LA-5581P files.

Type
Schematics
Format
.pdf · PDF schematic
Size
654 KB
Brand
Compal
Board number
LA-5581P
Model
U450
First posted
6 Sept 2017
Last posted
23 Jul 2026
Sources
8

Tags

LA-5581P schematicLA-5581P schematic diagramCompal LA-5581PCompal U450 schematicCompal U450 motherboardCompal U450 circuit diagramCompal schematic pdflaptop schematic diagramCompal laptop schematic diagramschematic free download

J1Download LA-5581P schematic from Telegram

R1How to download U450 LA-5581P

  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 U450 LA-5581P.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-5581P. 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.