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Disklavier

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Re: [disklavier] MX100II - troubleshooting

2018-08-14 by George F. Litterst

Good afternoon, everyone.

Bob, what is the “DKC” number on the front of the control unit? In my experience, it is not necessary to have a working floppy drive in order to send and receive MIDI using a Mark II.

BTW, Yamaha Piano Service can be reached at: ‭(800) 854-1569‬

Regards,
PianoBench

> On Aug 14, 2018, at 5:11 PM, Carol Beigel carol@... [disklavier] <disklavier@yahoogroups.com> wrote:
> 
> Sounds like you blew a fuse.  There are 3 of them on the main board inside the bottom of the piano.  These are replaceable from Radio Shack.  Just get the correct size.
> 
> 
> I think I put the service manuals on www.midiplayertools.com <http://www.midiplayertools.com/> to see the schematics, but they are pretty obvious.
> 
> Yes, you will always need a working floppy disk in the control box for the piano to work.
> 
> Carol Beigel
> Sent from my iPhone
> 
> On Aug 14, 2018, at 3:35 PM, bobpinsker@... <mailto:bobpinsker@...> [disklavier] <disklavier@yahoogroups.com <mailto:disklavier@yahoogroups.com>> wrote:
> 
>> Hi, all -
>> 
>> 
>> 
>> First post! Naturally, it's motivated by trouble with my old Disklavier, MX100II. I gather it is from circa 1996 or 1998? It is a true "Disk" instrument, in that it actually plays from floppies (getting a little hard to source!) I had noticed a more and more frequent incidence of problems with the floppy drive, in that it would suddenly skip to the end of a tune or something like that. I had almost stopped using the floppy altogether, and just used a laptop plugged in with a MIDI interface to drive the instrument, though I had to put a floppy into the drive to get the instrument to pay attention to the MIDI interface. (Is that normal?)
>> 
>> 
>> 
>> So, a while ago, I had the instrument running like this from a laptop and suddenly - I believe there was a sort of "pop" sound - all went dark, like a power supply problem. Since then, it won't power up. When the instrument is plugged in, and I tu rn on the power switch (below the treble end of the keyboard), I hear a faint click, but nothing on the floppy unit screen, and nothing happens when I turn the floppy unit on or off.
>> 
>> 
>> 
>> Any hints, along the lines of "well, such-and-such fuse always blows", or "sounds like a bad electrolytic capacitor", or "the floppy drive is the culprit", or . . . ? As long as the answer is not "It's just dead. Buy a new instrument!"
>> 
>> 
>> 
>> Thanks in advance to anybody who responds!
>> 
>> 
>> 
>>  Best regards from a little bit too warm San Diego -
>> 
>> 
>> 
>>   Bob Pinsker
>> 
> 
> 
>

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