diff --git a/modules/ph00524/README.md b/modules/ph00524/README.md
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+## Board `PH00524-2`
+
+The board controlling the vacuum valves does not show up in the schematics
+delivered with the SEM.  To us, it seems like the functionality was updated by
+merging a few of the boards from the schematics into a single board with even
+more smartness.
+
+`PH00524-2` contains connectors named `FK*`, `FM*`, and `FL*`, leading to the
+assumption that the boards `FK`, `FM`, and `FL` have been integrated into it.
+So far, the connectors seem to match up with the ones shown in the SEM schematics.
+
+There is also a Z80 based system + an EEPROM on the board.
+
+![Image of PH00524-2](./ph00524-2.jpg)
diff --git a/modules/ph00524/ph00524-2.jpg b/modules/ph00524/ph00524-2.jpg
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+version https://git-lfs.github.com/spec/v1
+oid sha256:18add0a03d549b76f34314790ebeacd9da1810961a95e05aa610694e8955a35d
+size 466557