Just in case you're wondering what happened in the end with this camera,
My electronic tech friend changed the capacitors, cleaned the corrosion on some tracks, replaced a connector and applied a conformal coating.
Working completely without schematics, he put an oscilloscope on the circuit involving the dodgy capacitors - when an exposure was triggered in the software, there was a voltage drop on that circuit. That voltage drop disappeared once the capacitors had been replaced.
I reinstalled the camera in the observatory and did some testing last night and thankfully it appears to be working normally again.
Fingers crossed we get a few more years of service from the camera.
DT
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