Main schematic for the Samsung SGH-E390 phone, a 687 KB PDF with no board revision given in the name. It complements the separate sub-board drawing for the same model. Typical content of such service diagrams includes the power management circuit, charging path, baseband and RF blocks, memory and the connectors to the secondary board. Technicians use it to measure supply rails, follow signal paths between sections and locate the component responsible for a short or no-boot condition. Check the PCB markings match, then open it in any PDF viewer.
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 @mobileshematic. 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 | |
|---|---|---|
| @mobileshematic | 13 Jun 2019 | Open file on RM Schematics |
| @Schematic_mobile_iran | 21 Nov 2020 | Open file on RM Schematics |
| @Schematic_mobile_iran | 22 Nov 2020 | Open file on RM Schematics |
How to open a .pdf file
The standard format for schematics, block diagrams, power-sequence charts and service manuals.