Schematic diagram for the HP Compaq Presario CQ20 laptop, a compact PDF of about 600 KB. The name gives no ODM, motherboard number or revision, so check the title block inside and the markings on the PCB to confirm a match. Once confirmed it helps with tracing power rails, checking the charger and voltage regulators, locating connectors, the EC and BIOS flash, and following signal paths when hunting a short or a dead rail. Any standard PDF reader opens 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 @abgm_manutencao_esquemas. Enginerys does not host this file.
All sources (4)
The same file was posted more than once. If one link is dead, try the next.
| Channel | Posted | |
|---|---|---|
| @abgm_manutencao_esquemas | 30 Jul 2019 | Open file on RM Schematics |
| @Satale_bios_esquemas_Laptop | 12 Oct 2022 | Open file on RM Schematics |
| @bartonarquivos | 8 Sept 2023 | Open file on RM Schematics |
| @cyberlanelectonik | 1 Oct 2026 | Open file on RM Schematics |
How to open a .pdf file
The standard format for schematics, block diagrams, power-sequence charts and service manuals.