Whilst fitting some new modules in my 8W projectors, I seem to have picked up a short to ground on one of them.
It's manifesting as odd modulation. I'm using a DS3 colour correction board and if I set the thresholds just off, then pull the ILDA cable out, all the lasers come on.
If I measure DV volts between bottom plate of projector and optical deck I get 1.1V
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However, I've been plugging and unplugging bits to see when it changes, but I've started going round in circles a bit.
I've unbolted the galvo amps and lifted them off in case they've shorted to the heatsinks, and removed the drivers too.
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Anyone got any hints and tips on tracing this? I've put it to one side for the moment, to finish work on its sister projector, but my next step is probably going to be to strip it out and rebuild it, checking as I go where I can.