Schematic in PDF for the Acer ES1-311 family, Wistron project EA30_BM, board 14221-1M, packed in a 2.68 MB RAR. The 14221-1M figure follows the Wistron pattern of a five-digit number and suffix printed on the PCB. Repair technicians use it to follow the power rails, the charging and power-on logic, and the signal routing, and to identify the components on a shorted line. Open the extracted PDF in a standard reader, and check that the suffix on your board matches before relying on values.
The button opens the matching file on RM Schematics, or a source page if it is not catalogued there yet. The original attachment is from @schematicslaptop. Enginerys does not host this file.
All sources (8)
The same file was posted more than once. If one link is dead, try the next.
| Channel | Posted | |
|---|---|---|
| @schematicslaptop | 21 Sept 2021 | Open file on RM Schematics |
| @LaptopsBoardview | 13 Nov 2021 | Open file on RM Schematics |
| @pepeelectronica | 21 Apr 2022 | Open file on RM Schematics |
| @generalschematics | 19 Oct 2024 | Open file on RM Schematics |
| @cyberlanelectonik | 15 Jul 2026 | Open file on RM Schematics |
| @schematics_bios | 24 Jul 2026 | Open file on RM Schematics |
| @schematics_bios | 31 Jul 2026 | Open file on RM Schematics |
| @schematics_bios | 14 Aug 2026 | Open file on RM Schematics |
How to open a .rar file
Compressed archive — the usual wrapper for a schematic + boardview pair or a BIOS + EC set.