by Mike Rivers » Sat Jul 06, 2019 12:49 pm
For future reference - The old "unplug it from the wall outlet for a few minutes" trick actually works sometimes, and in the case of the HDR/d8b, there's a rational explanation.
In order for the soft, or "remote" power switch (which is connected to the motherboard) to work, there needs to be a voltage supplied to it so that when you press the Power button, it tells the power supply to turn on. A brief power line interruption can cause this turn-on circuit to hang. By unplugging the power supply for a couple of minutes to allow capacitors to discharge, most of the time, this will clear what's hanging up the turn-on circuit.
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Understanding storage technology is not difficult. It is an ongoing process whereby larger and larger amounts of information can be lost by smaller and smaller mishaps.