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Re: PHA-50 key action issue.. am I being fussy? [Re: Goss] #2617633
02/24/17 11:01 AM
02/24/17 11:01 AM
Joined: Mar 2016
Posts: 20
M
Monnet Offline
Full Member
Monnet  Offline
Full Member
M

Joined: Mar 2016
Posts: 20
Originally Posted by Goss
*update*

Well, disappointing. The tech did some tests with other PHA-50 equipped key actions, and found similar discrepancies with all of them - he tried 3 pianos. He contacted Roland, and they responded this issue cannot be fixed.. Within tolerances they said.

C4 and c8 sharing the same touch weight is within tolerance -_-


So there is relevant issues with the PHA-50 action... And I just purchased the LX-7.

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Re: PHA-50 key action issue.. am I being fussy? [Re: Goss] #2617647
02/24/17 11:54 AM
02/24/17 11:54 AM
Joined: Dec 2016
Posts: 1,221
the Netherlands
Goss Offline OP
1000 Post Club Member
Goss  Offline OP
1000 Post Club Member

Joined: Dec 2016
Posts: 1,221
the Netherlands
I would not fret too much Monnet - the tech mentioned he found several PHA-50's with some keys exhibiting the same behaviour, but not nearly as many as mine.. Some other owners here feel absolutely no issues in theirs.

None of the pianos are immune to mechanical issues - just reading for example some Kawai owner's troubles with RMIII or Grand Feel on the forum here.. But its not that áll the Kawais have these issues or if they do, have them with the same severity.



Roland HP605|Senheiser HD558|MSFT Surface Pro 4|coffee
Re: PHA-50 key action issue.. am I being fussy? [Re: Goss] #2617655
02/24/17 12:33 PM
02/24/17 12:33 PM
Joined: Aug 2016
Posts: 2,089
G
Gombessa Offline
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Gombessa  Offline
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G

Joined: Aug 2016
Posts: 2,089
Goss, sorry to hear the response. I wouldn't have thought it's within tolerance for keyweighting to be that different between zones.

What's the plan, are you going to try to escalate the matter? Just live with it? DP actions are so mechanically basic that I'd be tempted to troubleshoot the issue myself if it happened to me. The root cause cannot be much more than some source of excess friction I would think?


Yamaha P-85, P-105, CP50 || Kawai NV-10, MP11
Re: PHA-50 key action issue.. am I being fussy? [Re: Goss] #2617673
02/24/17 01:42 PM
02/24/17 01:42 PM
Joined: Dec 2016
Posts: 1,221
the Netherlands
Goss Offline OP
1000 Post Club Member
Goss  Offline OP
1000 Post Club Member

Joined: Dec 2016
Posts: 1,221
the Netherlands
I don't know Gombessa =/ I am going to mull it over this weekend. Haven't talked about it with my wife yet, but two options, well three. come to mind. One is accept it - maybe the friction lessens with wear of the action. (The technician said his Roland contact told him that if the problem is still an issue in one year's time then they would be open to offering another solution.. While he did not mention wear could be a leveller here, I infer it from this remark) Two is don't accept it and try another HP605 or LX and hope there is less of this issue or none of it present. Three would be to open it all up and go over the parts with a micrometer / caliper and see what I can do myself. It would be fairly exacting work - filing the surfaces would need to be done dead straight or there would be issues with alignments.. and there are 25 keys to tend to.

Last edited by Goss; 02/24/17 01:46 PM.

Roland HP605|Senheiser HD558|MSFT Surface Pro 4|coffee
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