Schematic diagrams for the Lenovo A278t mobile phone, a 606 KB RAR archive; the name mentions drawings only, no service manual. Use the pages to trace the power-on sequence from battery to PMIC, check charging and USB lines, and find components around a short on a supply rail. Extract with WinRAR or 7-Zip to open the documents inside, typically PDF. Verify that the board revision printed on your phone matches the schematic before measuring against it or swapping parts based on designators.
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 @SMART_PHONE_SCHEMATICS. Enginerys does not host this file.
All sources (8)
The same file was posted more than once. If one link is dead, try the next.
| Channel | Posted | |
|---|---|---|
| @SMART_PHONE_SCHEMATICS | 12 Sept 2021 | Open file on RM Schematics |
| @pepeelectronica | 21 Apr 2022 | Open file on RM Schematics |
| @pepeelectronica | 24 Apr 2022 | Open file on RM Schematics |
| @GENERAL_SMART_PHONE_SCHEMATICS | 11 Nov 2024 | 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 |
| @cyberlanelectonik | 2 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.