Schematic diagram in PDF format for the Acer Predator Helios 300 G3-571, built on the Compal LA-E921P board and delivered as a RAR archive. The schematic documents the power rails, the power-on sequence, charger and VRM circuits and signal connections. Use it when chasing missing voltages, failed enables or shorts on this gaming laptop. Pair it with the LA-E921P boardview to find the physical parts. Check the board revision printed beside the Compal number on the PCB, since revisions may differ.
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 (10)
The same file was posted more than once. If one link is dead, try the next.
| Channel | Posted | |
|---|---|---|
| @schematicslaptop | 12 Oct 2020 | Open file on RM Schematics |
| @LaptopsBoardview | 3 Nov 2020 | Open file on RM Schematics |
| @pepeelectronica | 23 Apr 2022 | Open file on RM Schematics |
| @generalschematics | 19 Oct 2024 | Open file on RM Schematics |
| @boardviewsandachematics | 1 Sept 2025 | Open file on RM Schematics |
| @cyberlanelectonik | 4 Jul 2026 | Open file on RM Schematics |
| @cyberlanelectonik | 14 Jul 2026 | Open file on RM Schematics |
| @schematics_bios | 24 Jul 2026 | Open file on RM Schematics |
| @schematics_bios | 1 Aug 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.