Schematic for the Asus-branded ADP-90SB BB laptop adapter, compressed into a 270 KB rar. The ADP prefix is Delta Electronics model numbering, so the unit was likely made by Delta for Asus. Use the diagram to follow the mains input, bridge rectifier, switching stage, transformer and secondary regulation when an adapter is dead or delivers unstable voltage. Work only after the high-voltage capacitor has been discharged, and check the PCB revision against the drawing before replacing parts based on it.
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 (7)
The same file was posted more than once. If one link is dead, try the next.
| Channel | Posted | |
|---|---|---|
| @schematicslaptop | 29 Nov 2021 | Open file on RM Schematics |
| @pepeelectronica | 20 Apr 2022 | Open file on RM Schematics |
| @pepeelectronica | 23 Apr 2022 | Open file on RM Schematics |
| @schematics_bios | 23 Jul 2026 | Open file on RM Schematics |
| @schematics_bios | 24 Jul 2026 | Open file on RM Schematics |
| @schematics_bios | 31 Jul 2026 | Open file on RM Schematics |
| @schematics_bios | 14 Aug 2026 | Open file on RM Schematics |
How to open a .rar file
Compressed archive — the usual wrapper for a schematic + boardview pair or a BIOS + EC set.