Ground resistance map for the iPhone 7 Plus RF power amplifier area, labelled LBDSM_RF in the Chinese title, supplied as a 7.31 MB PDF. It shows expected readings to ground for the amplifier module points, helping a technician isolate baseband or no-signal faults by comparing measured values against reference ones. Any PDF reader opens it. Remember that measurement mode and meter type affect results, so confirm the board variant and compare against a working unit where available.
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 @uzb4422. Enginerys does not host this file.
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The same file was posted more than once. If one link is dead, try the next.
| Channel | Posted | |
|---|---|---|
| @uzb4422 | 13 Feb 2023 | Open file on RM Schematics |
| @uzb4422 | 3 Sept 2023 | Open file on RM Schematics |
How to open a .pdf file
The standard format for schematics, block diagrams, power-sequence charts and service manuals.