PDF schematic for the Dell Latitude 3520 with the Cyborg L15 project name, Ice Lake (ICL) platform and mainboard 203074-1, about 5.26 MB. Wistron designed the board, as the number format shows. The diagrams let a technician follow the power-up sequence, find the controller behind a missing rail, check signal paths between the EC, chipset and connectors, and read component values for replacement. It opens in any PDF reader and pairs with the matching boardview. Verify the board number on the PCB and the revision listed in the document 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 @cynetitsolution. Enginerys does not host this file.
All sources (2)
The same file was posted more than once. If one link is dead, try the next.
| Channel | Posted | |
|---|---|---|
| @cynetitsolution | 4 May 2026 | Open file on RM Schematics |
| @schematics_bios | 5 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.