Inventec schematic in PDF for the HP 620 and Compaq CQ320 and CQ321 laptops, which share a motherboard design according to the name. No board code or revision is included, so the title block inside must be matched to the PCB markings first. The circuit lets a technician follow the power path from DC jack to regulators, measure voltages at test points, check the power-good chain and track down a short. It opens in any standard PDF viewer, and searching net names helps when tracing signals over several pages.
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 @freeschematicdiagram. 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 | |
|---|---|---|
| @freeschematicdiagram | 14 Jul 2020 | Open file on RM Schematics |
| @pepeelectronica | 20 Apr 2022 | Open file on RM Schematics |
| @pepeelectronica | 23 Apr 2022 | Open file on RM Schematics |
| @generalbios | 8 Oct 2023 | 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 | 1 Aug 2026 | Open file on RM Schematics |
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The standard format for schematics, block diagrams, power-sequence charts and service manuals.