Schematic in PDF format for the T420s, carrying the project codes LSN-3 and SWG with an MB tag and the date-style code H0226-2. No board number in a known ODM pattern is given, so check the PCB markings against the drawing first. These pages help a technician follow the power sequence, find the charger and CPU regulators, locate the BIOS and EC chips, and trace signal paths between connectors. Use the reference designators to match components on the physical board.
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 @IT_SERVICE_WORLD. Enginerys does not host this file.
All sources (4)
The same file was posted more than once. If one link is dead, try the next.
| Channel | Posted | |
|---|---|---|
| @IT_SERVICE_WORLD | 22 Sept 2019 | Open file on RM Schematics |
| @IT_SERVICE_WORLD | 2 Oct 2019 | Open file on RM Schematics |
| @ITHINKHS | 3 Jan 2022 | Open file on RM Schematics |
| @ithinkhs_casediscussion | 18 Jan 2023 | Open file on RM Schematics |
How to open a .pdf file
The standard format for schematics, block diagrams, power-sequence charts and service manuals.