NM-A221_r1.0_Lenovo_ThinkPad_Edge_E550_LCFC-SRGinfotech.pdf
Schematic for Lenovo E550 · board NM-A221 · 1.6 MB · shared in 2 Telegram posts.
TXTAbout NM-A221 r1.0 Lenovo ThinkPad Edge E550 LCFC-SRGinfotech schematic
NM-A221 r1.0 Lenovo ThinkPad Edge E550 LCFC-SRGinfotech is a free Lenovo E550 motherboard schematic diagram for board NM-A221. The PDF file is 1.6 MB and covers board revision 1.0. It was first posted on 13 Sept 2021 and is available in 2 Telegram channels.
The NM-A221 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 BIOS dumps — see all NM-A221 files.
- Type
- Schematics
- Format
- .pdf · PDF schematic
- Size
- 1.6 MB
- Brand
- Lenovo
- Board number
- NM-A221
- Model
- E550
- Revision
- 1.0
- First posted
- 13 Sept 2021
- Last posted
- 28 Apr 2022
- Sources
- 2
Tags
J1Download NM-A221 schematic from Telegram
- Boardview-laptop-phone-TV-bios.schematic @pepeelectronica · 28 Apr 2022Open post
- Ocean of Schematic & Boardview @alischematics · 13 Sept 2021Open post
R1How to download NM-A221 r1.0 Lenovo ThinkPad Edge E550 LCFC-SRGinfotech
- Press Download in Telegram. The post opens in the Telegram app, or on a t.me preview page — choose “View in Telegram”.
- You don’t need to join the channel. Tap the file NM-A221_r1.0_Lenovo_ThinkPad_Edge_E550_LCFC-SRGinfotech.pdf to download it.
- Open it with Any PDF reader or SumatraPDF.
If a post was deleted, try another source above or search for NM-A221. 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.