Schematic PDF for a Dell 14-inch Haswell platform built on the Compal LA-B843P board, roughly 4.78 MB. Compal names its boards with an LA- prefix followed by a four-character code, so the number on the PCB is the most reliable way to match it. Hsw refers to Intel's Haswell generation. Use the diagrams to trace power rails, find test points for voltages and work out the power-on sequence when diagnosing no-power or no-display faults. Check that the revision on the board matches the schematic pages.
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 (12)
The same file was posted more than once. If one link is dead, try the next.
| Channel | Posted | |
|---|---|---|
| @schematicslaptop | 24 Feb 2018 | Open file on RM Schematics |
| @LaptopsBoardview | 4 Jun 2019 | Open file on RM Schematics |
| @nityatechnology2020 | 28 Jul 2021 | Open file on RM Schematics |
| @alischematics | 13 Sept 2021 | Open file on RM Schematics |
| @pepeelectronica | 24 Apr 2022 | Open file on RM Schematics |
| @alischematics | 6 Jan 2023 | Open file on RM Schematics |
| @generalschematics | 19 Oct 2024 | Open file on RM Schematics |
| @nityatechnology2020 | 13 Jan 2026 | Open file on RM Schematics |
| @cyberlanelectonik | 15 Jul 2026 | Open file on RM Schematics |
| @schematics_bios | 25 Jul 2026 | Open file on RM Schematics |
| @schematics_bios | 1 Aug 2026 | Open file on RM Schematics |
| @schematics_bios | 13 Aug 2026 | Open file on RM Schematics |
How to open a .pdf file
The standard format for schematics, block diagrams, power-sequence charts and service manuals.