Schematic in PDF form for the Dell Latitude 3440, codename DL340, board 13221-1, packed in a 1.91 MB ZIP. The board number follows Wistron's pattern, the ODM that designed it. Any PDF reader opens the diagrams, which show power sequencing, rail names, signal paths and component values for diagnosing no-power, no-charge or no-display faults. Pair it with a boardview for physical locations, and confirm the 13221-1 marking on the PCB before trusting 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 (5)
The same file was posted more than once. If one link is dead, try the next.
| Channel | Posted | |
|---|---|---|
| @schematicslaptop | 30 Apr 2022 | Open file on RM Schematics |
| @generalbios | 15 Dec 2024 | Open file on RM Schematics |
| @boardviewsandachematics | 1 Sept 2025 | Open file on RM Schematics |
| @cyberlanelectonik | 15 Jul 2026 | Open file on RM Schematics |
| @schematics_bios | 14 Aug 2026 | Open file on RM Schematics |
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