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RE: [disklavier] Do not play Acoustic keys MARK IV D- Help me find a service manual

2019-04-26 by Geoff Ward

Just a point of interest, I unplug from the wall socket every night, just in case there’s a nearby lightning strike that gets through.  Mine is a 6 year old Mark IV C3 and I am awaiting a new power supply and motherboard with a cost of $2,200.  Apparently the power supply failed and sent a surge through the mother board and blew it as well.  It will be interesting to test Yamaha Australia’s attitude to warranty.

 

Kind regards

 

Geoff

 

 

From: disklavier@yahoogroups.com [mailto:disklavier@yahoogroups.com] 
Sent: Saturday, 27 April 2019 6:25 AM
To: bill@...-a-geek.com [disklavier] <disklavier@yahoogroups.com>
Subject: Re: [disklavier] Do not play Acoustic keys MARK IV D- Help me find a service manual

 

  

The point is that you need to drain the circuits that store bits of corrupted memory. 

 

Shut down the instrument and disconnect the main power cable from the wall outlet. Then, wait 10-40 minutes before plugging in and starting up again.

 

PianoBench





On Apr 26, 2019, at 2:01 PM, master-12l@yandex.ru <mailto:master-12l@...>  [disklavier] <disklavier@yahoogroups.com <mailto:disklavier@yahoogroups.com> > wrote:

 

 

Good day:)

 

Thanks for the answer.

Really need to turn off so long? I turned off but a maximum of a minute.

 

It is necessary to switch off completely the unit where the power is distributed and where does everything else already feed from?

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