- Joined
- Jul 21, 2011
- Messages
- 2,468
The not used switch should not be on ever. So somewhere you’ve got an incorrectly wired switch or diode. 1st suspect is the bookcase closed switch, as it doesn’t seem to change and is in the square of the unused switch and the centre swamp switch. Pull the connector apart to the bookcase switches and retest. See if the phantom unused switch goes away or not.
You also have something strange going on with the directly grounded switches on the left hand side of the matrix.
You also have something strange going on with the directly grounded switches on the left hand side of the matrix.