Schematic for board LG4858L, Wistron number 12206-1 with code 4WQ02, supplied as a PDF in a RAR archive. The five-digit dash-suffix format is Wistron's ODM numbering, a pattern found in Acer, Dell and HP laptops. The name does not identify the branded model, so match the numbers printed on the PCB. Use the drawing to trace power rails, check charger and regulator circuits, locate components on a shorted line and follow signals between chips.
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 | 19 Mar 2022 | Open file on RM Schematics |
| @pepeelectronica | 26 Apr 2022 | Open file on RM Schematics |
| @cyberlanelectonik | 18 Jul 2026 | Open file on RM Schematics |
| @schematics_bios | 25 Jul 2026 | Open file on RM Schematics |
| @schematics_bios | 2 Aug 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.