Schematic for the Lenovo B320 all-in-one, motherboard CIH61S, supplied as a PDF in a 1.94 MB RAR archive; the brand is misspelled in the original name. The board code suggests an H61-based design, but confirm the marking on your PCB reads CIH61S before following its references. The diagram helps trace the VRM, memory and chipset power rails, standby circuitry and power button logic, and shows how the BIOS flash is wired. Extract it and open in any PDF viewer to work through no-power or no-display faults.
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 (3)
The same file was posted more than once. If one link is dead, try the next.
| Channel | Posted | |
|---|---|---|
| @schematicslaptop | 17 Dec 2022 | Open file on RM Schematics |
| @cyberlanelectonik | 18 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.