Schematic for the LiteOn PA-1121-04 adapter; the trailing nev is unclear and may mark a newer version. Chargers of the PA-1121 family are typically 120 W units with a PFC front end. The PDF helps trace the PFC controller, the main PWM stage, MOSFETs, transformer, output rectifiers and the feedback loop when diagnosing a dead or unstable charger. Discharge the bulk capacitor before probing. Compare the board revision with the drawing, since another file covers the -04CA variant and the versions may differ.
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 (6)
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 |
| @ShareMan_Electronic_Files | 19 May 2025 | Open file on RM Schematics |
| @pkbiosbdv | 15 Sept 2025 | Open file on RM Schematics |
| @cyberlanelectonik | 18 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.