SCH

LENOVO L421 GC9F Quanta DM4 RB4 HR_DIS_0825.pdf

Schematic for Lenovo L421 / GC9F / DM4 · 1.7 MB · shared in 1 Telegram post.

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TXTAbout LENOVO L421 GC9F Quanta DM4 RB4 HR DIS 0825 schematic

LENOVO L421 GC9F Quanta DM4 RB4 HR DIS 0825 is a free Lenovo L421 / GC9F / DM4 motherboard schematic diagram. The PDF file is 1.7 MB. It was first posted on 1 Mar 2021 and is available in 1 Telegram channel.

The L421 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.

Type
Schematics
Format
.pdf · PDF schematic
Size
1.7 MB
Brand
Lenovo
Model
L421, GC9F, DM4
Notes
DIS (discrete graphics)
First posted
1 Mar 2021
Last posted
1 Mar 2021
Sources
1

Tags

Lenovo L421 schematicLenovo L421 motherboardLenovo L421 circuit diagramLenovo schematic pdflaptop schematic diagramLenovo laptop schematic diagramschematic free download

J1Download L421 schematic from Telegram

R1How to download LENOVO L421 GC9F Quanta DM4 RB4 HR DIS 0825

  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 L421 GC9F Quanta DM4 RB4 HR_DIS_0825.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 L421. 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.