Disklavier

I'm not sure my experience with computers is applicable to a Mark IV, 
but I commonly advise clients to unplug first the power, then 
disconnecting and reconnecting all other cables one-by-one, before 
replugging in power when I want a full system cold-start reboot to take 
place.  The primary reason I do it is because in the past (I don't know 
for sure it's still valid) serial IO UARTs (still used in USB 
communications) could hold state (ie, strap a pin high) between 
reboots.  That mainly occurred between different components, so maybe, 
as the Mark IV is a self contained system, unplugging from power serves 
that purpose as well.

Cluelessly-y'rs,

Emile


On 1/20/2014 2:07 PM, Horatio Kemeny wrote:
> I'm curious if anyone has some insight as to why powering down for so 
> long is necessary? Most electronics require a few seconds at most to 
> be completely powered off and ready for a full reset.
>
> What (and how) could something still be going on with no power to the 
> system at all?
>
> I'm not questioning the validity of the strategy as it seems to work 
> and the time, as per this example, makes a difference.
>
> But what's actually going on?
>
> .....HK
>
>
> On Jan 20, 2014, at 2:02 PM, James W Kenney <jimwkenney@... 
> <mailto:jimwkenney@...>> wrote:
>
>> Bill
>> Thank you again. The fix worked. I had powered down, but quickly 
>> rebooted. That did not work.
>>
>> Jim
>>
>>
>>
>>
>> -----Original Message-----
>> From: Bill Brandom <bill.brandom03@... 
>> <mailto:bill.brandom03@...>>
>> To: disklavier <disklavier@yahoogroups.com 
>> <mailto:disklavier@yahoogroups.com>>
>> Sent: Mon, Jan 20, 2014 12:17 am
>> Subject: Re: [disklavier] Inactive M IV part 2
>>
>> James,
>>
>> Completely power down the Disklavier by holding in the oblong green 
>> on/off button. After it quits blinking, unplug it from the wall and 
>> let it sit about an hour.
>>
>> Plug it back, in and power it up. I think you will find the keys and 
>> pedals will start playing again for you.
>>
>> You MUST unplug the piano from power for this to work.
>>
>> Bill
>>
>>
>> On Sun, Jan 19, 2014 at 6:24 PM, James W Kenney 
>> <jimwkenney@... <mailto:jimwkenney@...>> wrote:
>>
>>     I connected a set of ear phones and I can hear the music. Nothing
>>     from the keys.
>>
>>     Jim
>>
>>
>