This really makes no sense. Let's say it gets the signal to turn 'out' (up). Then the switch to turn 'in' (down) should make contact and the out/up switch should be open. SO at this point, neither coil should be ON and you should be able to move the solenoid
by hand. (those magnets are strong so it takes some effort) If the OUT/UP signal is stuck on, the solenoid would move right back into position.
You might just have to carefully test it with a bench power supply per previous discussions.
I have attached the datasheet just in case you need it.
Mark
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For some reason, the lower contact pair of Y leaves will *not* make contact. They
appear to be making contact visually, but it's open circuit every time. I've tried shaving down a toothpick and cleaning the inside contact areas with ethanol but it's made NO difference at all. If I jiggle them, I can get them to make electrical contact,
but then it's lost again a moment later. Never experienced this before! Could this explain why this attenuator is permanently stuck 'on' once actuated?
