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Another reason to hate "soft touch" power switches
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IDEngineer:

--- Quote from: magic on July 18, 2019, 09:22:55 pm ---They probably wanted to make it power up instantly when it is turned on with the mechanical switch.
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...in which case, what is the value of a soft touch power switch?

If the hard switch actually switches the mains, then it (should be) like (un)plugging the cord. On the other hand, if the unit can tell the difference between 1) being plugged in with the hard switch closed, and 2) turning on the hard switch when the cord is already plugged in, then the hard switch is AFTER some active circuitry - a bizarre "design" that few would ever expect. Ask yourself... if there's a hard switch, would you think that turning it off would still leave some portion of the unit powered by mains?
SiliconWizard:
Well as for me, again I don't really mind those soft power buttons. As long as they are implemented correctly (which granted is not always the case).

What infuriates me a lot more, with modern equipment, is those that take AGES to start ("boot"). Fucking annoying if you ask me.
SiliconWizard:

--- Quote from: magic on July 18, 2019, 09:22:55 pm ---
--- Quote from: SiliconWizard on July 18, 2019, 03:57:41 pm ---I'd say that a device equipped with such "soft" on/off button should NOT power on by itself in case of mains power cycling. Sounds like bad design and not something completely inherent to soft power buttons (but obviously with a simple mechanical switch, it can't happen.)

--- End quote ---
They probably wanted to make it power up instantly when it is turned on with the mechanical switch. Otherwise somebody would inevitably return it as DOA :P

--- End quote ---

Well, if any engineer or technician was dumb enough not to even think of trying to press the power button on the front panel before declaring the device dead, I'd be tempted to think that they would deserve getting nothing but DOA equipment anyway... :-DD

And if there were potentially enough of them to warrant such a design decision, then I'd be definitely worried about the future of the tech professions. ;D
IDEngineer:

--- Quote from: SiliconWizard on July 18, 2019, 09:41:41 pm ---Well as for me, again I don't really mind those soft power buttons. As long as they are implemented correctly (which granted is not always the case).
--- End quote ---
Granted, but my question is: What value do they ADD that justifies their complexity, cost, and the added downside of often being implemented INcorrectly? They seem to be the default power switch these days, but except for a few special cases there doesn't seem to be an advantage that justifies them. You say "I don't really mind those soft power buttons" but I bet you'd be just as happy with a hard switch.
tautech:

--- Quote from: IDEngineer on July 18, 2019, 09:57:41 pm ---
--- Quote from: SiliconWizard on July 18, 2019, 09:41:41 pm ---Well as for me, again I don't really mind those soft power buttons. As long as they are implemented correctly (which granted is not always the case).
--- End quote ---
Granted, but my question is: What value do they ADD that justifies their complexity, cost, and the added downside of often being implemented INcorrectly? They seem to be the default power switch these days, but except for a few special cases there doesn't seem to be an advantage that justifies them. You say "I don't really mind those soft power buttons" but I bet you'd be just as happy with a hard switch.

--- End quote ---
They ADD the ability to have a powerful OS that permits incorporation of complex features into an instrument and that OS needs be shut down gracefully to retain settings.
Most that have soft key power buttons also have the feature to set what happens after a power failure as has already been pointed out to you.
Apparently you had changed from default power behavior so no wonder your DSO restarted after a power failure.
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