PDF schematic of the ASUS ADP-90SB BB power adapter, rated 19 V at 4.74 A, which gives about 90 W. The ADP model prefix is characteristic of Delta Electronics, a common ASUS charger supplier. Use the diagram to trace mains input, rectification, the PWM stage, transformer, output rectifier and the feedback optocoupler loop when a charger is dead or drops out under load. Make sure the BB suffix on the label matches, as other variants may differ. Handle the primary side with care, as the capacitors hold high voltage.
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 |
| @ShareMan_Electronic_Files | 19 May 2025 | Open file on RM Schematics |
| @pkbiosbdv | 15 Sept 2025 | Open file on RM Schematics |
| @BoardSchematic | 13 Oct 2026 | Open file on RM Schematics |
| @schematics_bios | 26 Oct 2026 | Open file on RM Schematics |
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