I recently picked up another Model 100 which stated that it does not
power on. When I received it and tested it, indeed no response at all
when powered up with fresh batteries. I set it off to the side to
troubleshoot this weekend.
However, I had forgotten to turn off the power. This morning, I noticed
the low battery LED was on. I then noticed that the menu was now
visible. I switched it on and off several times and tried launching some
of the programs and it seemed fine.
I turned it off and left it off while I went to work and when I returned
home, it would not power on again.
My gut tells me bad caps or perhaps the internal battery causing this. I
have seen this behavior before in other products where it takes a very
long time to charge up the caps or nicad batteries enough to allow
enough current to flow for the rest of the circuit.
I wonder what others think it might be.