Schematic for the Bolt-L UMA design on Wistron board 17938-1, with the code FW8G6 also noted, provided as a PDF in a RAR archive of about 13.9 MB. UMA indicates the integrated-graphics variant without a discrete GPU. Wistron uses this five-digit number with dash revision format. The document helps trace power rails, enable signals and component values when diagnosing no-power or no-display faults. Verify that the board in hand is the UMA version with the same number, as discrete-GPU boards 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 (5)
The same file was posted more than once. If one link is dead, try the next.
| Channel | Posted | |
|---|---|---|
| @schematicslaptop | 21 Nov 2021 | Open file on RM Schematics |
| @pepeelectronica | 24 Apr 2022 | Open file on RM Schematics |
| @schematics_bios | 24 Jul 2026 | Open file on RM Schematics |
| @schematics_bios | 1 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.