Message
RE: [disklavier] Re: DKC500R powering off
2012-08-26 by athomik
athomik
On Aug 26 2012, Phil Becker wrote:
>I'm basing this possible diagnosis on the fact that you indicate that the
>on/off switch seems at times to be "very sensitive" to a light touch
>powering off the unit when it is on, but not always. This can indicate a
>switch that has dirt in the mechanical mechanism that locks it from off to
>on, or on the actual electrical contacts making it erratic in operation.
>
>From my experience with other electronics, sometimes you can "fix" such a
>problem by rapidly cycling the switch several times to dislodge dirt in the
>mechanism. Unplug the power first (electronics don't appreciate rapid power
>cycling), then press the on/off switch as rapidly as you can while fully
>pressing and releasing it rapidly several times in a few seconds. Press very
>firmly (but do not strike or hit), as the goal is to fully cycle the switch
>to vibrate the insides of the switch so as to dislodge any dirt which is
>fouling the inner contacts or mechanical locking mechanism but you want to
>avoid doing damage by physically "hitting" it to hard. Your goal is to
>rapidly cycle the insides of the switch without damaging things.
>
>Amazingly, this is often the problem with switches that have been around for
>a while, and frequently ends the issues with them. If not, and the switch
>is the real problem, it will likely have to be replaced with a new
>switch/button. As to such repairs, I have no knowledge what is available or
>how to proceed with a DKC500R.
>
> _____
>
>From: disklavier@yahoogroups.com [mailto:disklavier@yahoogroups.com] On
>Behalf Of tintinlad320
>Sent: Sunday, August 26, 2012 7:50 AM
>To: disklavier@yahoogroups.com
>Subject: [disklavier] Re: DKC500R powering off
>
>
>
>
>Yes maybe; when I had opened the unit i carefully looked ant check around
>for loose onnetore . Is there a way to check directly that power button ?
>his kind of problem is not happening all the time which makes it difficult I
>guess to analyse...
>I should try to find a disklavier tech but I have the impression they are
>not to many around where I live (Nice, France). Ans in the case of a button
>problem the fix would be probably to send the unit for repair... are they
>repairing such unit still... not in Paris I guess !
>
>--- In disklavier@yahoogroups.com ,
>"Phil Becker" wrote:
>>
>> From just reading your message (admittedly a small amount of information
>on
>> the issues you see), it sounds like the power button itself may be the
>> issue.
>>
>> _____
>>
>> From: disklavier@yahoogroups.com
>[mailto:disklavier@yahoogroups.com ]
>On
>> Behalf Of tintinlad320
>> Sent: Saturday, August 25, 2012 12:11 AM
>> To: disklavier@yahoogroups.com
>> Subject: [disklavier] DKC500R powering off
>>
>>
>>
>>
>> HI
>> The dck500R module of my MPX1 has a strange behaviour :
>>
>> Intermittently (sometimes, not always? im not able to pinpoint any direct
>> causes) the unit will power off for what seems just a split second so the
>> "powering on" process starts again with the welcoming srceen message etc.
>>
>> I have opened carefully the unit to see if there was not a loose part but
>> everything looks pristine and perfect, also I went to have a look inside
>the
>> piano to see if I ould detect any loose part or connectors (specially in
>the
>> power unit area) but again there everything looks perfect.
>>
>> At first I thought that it was happening only when the unit would be
>reading
>> a diskette, but i have notice that it aslo happens sometimes if the unit
>is
>> receiving midi data (from the computer) and also when the unit is just
>"on"
>> without performing any tasks.
>>
>> The power on/off button seeme sometime to be extra sensitive, just barely
>> passing a finger over ou around it is enough to restart the unit again.
>>
>> So woulld it be the unit itself, the power unit in the piano or something
>> else ? Does it ring any bells ?
>>
>> -Thanks
>>
>> ps: Im thinking of getting a DKC850, is it likely to happen there also ?
>>
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