I decided it was time to charge the NiMH batteries in my DT-200VX and DT-400W today. When I pulled the DT-400W out of its case, the display was blank. I put in a set of freshly-charged batteries and the display was still blank, and as expected, the power switch didn't work.
I don't see any reset hole in the DT-400W case. Is there a way to reset it?
Maybe it's just toast, although it seems odd that it would die just sitting peacefully in its case on battery power.