PDF schematic of a power supply adapter, identified in the name only by the code tsm103_394, which likely refers to a controller or design number. It is a small 197 KB document, probably a single sheet of the circuit. Technicians repairing laptop or device chargers use drawings like this to follow the primary switching stage, the PWM controller, the feedback optocoupler and the secondary rectification. Measurements on the bulk capacitor should only be taken after it has been safely discharged. Check the label and board markings to confirm the design matches.
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 | 18 May 2025 | Open file on RM Schematics |
| @pkbiosbdv | 15 Sept 2025 | Open file on RM Schematics |
| @cyberlanelectonik | 22 Jul 2026 | Open file on RM Schematics |
| @BoardSchematic | 13 Oct 2026 | Open file on RM Schematics |
| @schematics_bios | 26 Oct 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.