PianoDisc Prodigy User manual


    
PIANODISC SYSTEMS
Installation Guide for Grand Pianos
(Standard System)
Jan 2019
Installation
Guide

PianoDisc
Installation Guide for Grand Pianos
Jan. 2019
PianoDisc


 !

4111 North Freeway Blvd.
Sacramento, A 95834
Phone [phone] Fax [phone]
WWW.PianoDisc. om

Introduction
This installation manual will guide you through the process of fitting the PianoDisc High
Definition SilentDrive reproducing piano system to virtually any grand piano. Along with
the knowledge and experience gained from a PianoDisc Installation Seminar, this guide
should be an invaluable resource.
This document is considered confidential by PianoDisc, and is for the sole use of PianoDisc
ertified Technicians. It may not be reproduced, distributed or quoted in whole or in part
without the express written permission of PianoDisc.
This guide is only to be used in the installation of the PianoDisc SilentDrive Reproducing
System.
PianoDisc systems may ONLY be installed by technicians who have been certified by
PianoDisc to perform such installations. If you have come into possession of this manual
and/or a Retrofit Kit and you are NOT a PianoDisc ertified Technician, DO NOT
ATTEMPT TO PERFORM THE INSTALLATION. Installations not performed by a
certified PianoDisc technician WILL NOT meet the requirements for warranty protection,
and such an installation will likely void the piano manufacturer’s warranty for the instrument
and the player system, and may also be a violation of F rules.
Technicians may only be certified by attending the PianoDisc installation Seminar at
PianoDisc’s Factory and World Headquarters in Sacramento, A, or by on site training
evaluation and certification by one of the PianoDisc Factory Installation Technicians duly
authorized to certify technicians. A candidate for PianoDisc certification should be a Quali-
fied Piano Technician understanding piano action regulation. A candidate who does not
qualify under this rule will be evaluated on an individual basis, with an emphasis on total
experience as a piano technician and possible previous experience in retrofitting pianos with
other player piano mechanisms.
PianoDisc encourages PianoDisc technicians to comment on this installation manual by
writing to: PianoDisc, 4111 North Freeway Boulevard, Sacramento, A 95834, or by fax at
[phone]. Please restrict telephone calls to technical questions and installation
inquiries. Thank you.
Technical assistance for PianoDisc ertified Technicians is available Monday through
Friday. The telephone number is: [phone].
i

FCC Information
CAUTION: CHANGES OR ODIFICATIONS NOT EXPRESSLY
APPROVED BY THE PARTY RESPONSIBLE FOR CO PLIANCE COULD
VOID THE USER’S AUTHORITY TO OPERATE THE EQUIP ENT.
NOTE: This system, when in operation, can develop radio frequency energy which can
cause harmful interference to radio communication unless the equipment is installed and
used in strict accordance with manual instructions. This equipment has been tested and
found to comply with the limits for a lass B digital device, pursuant to part 15 of the F
rules, which provide reasonable protection against such interference.
If the equipment does cause harmful interference to radio or television reception, which can
be determined by turning the equipment on and off, the user is encouraged to try to correct
the interference by one or more of the following measures:
Reorient or relocate the receiving antenna.
Increase the separation between the equipment and the receiver.
onnect the equipment into an outlet on a separate circuit from that of the receiver.
onsult PianoDisc, or an experienced radio/TV technician for help.
The user may find the following booklet prepared by the Federal ommunications
ommission helpful:
How to Identify and Resolve Radio-TV Interference Problems.
This booklet is available from the US Government Printing Office, Washington, D 20402
ii

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Step 1 Disassemble the Piano
6 Remove the music desk and the fallboard :
:
((("(
(
 Measure the key height 6(–
  (          (  #
        (      89 (
8;<(
(        7  (  "   
=>8%)9"
"?
Mark the location of the Keyframe on the keybed.
 Remove the action          
("(
(

!(
      ;        
    !             

@ Removal of the lid is optional !
!"

 Place the piano on its bass side A
               (
A((
  "(  

G. Remove the pedal lyre and all trapwork 
(
1

H. Remove the hammer stack. Remove the screws – 2 per bracket, for a total of 8 or
10. The screws may vary in size; consequently, mark each one in such a manner as
to insure its return to the original position in the keyframe. Lift the action “stack”
from the keyframe and place it somewhere safe.
Note:          
//(!(
(
(
To determine this key access –
% 
& '( (89 
"(
8%6% -'B9
) ;    (  (      
"(See figure 1A
and 1B – Measurment Y.
Figure
1A
2

Figure 1B
Step 2 Measure the key groups
6 Establish the key groups "(
 <  %//"( 
     "         
" ? %  " -      
(?&'        ? )
? ,            (  
"   
C(>
 Place and mark the rail blanks (
("(
8& 9
# Mark the starting       8   (  
(98&69
 Always start with ((:;2D
$A(
3

@ Do the same 
 Label each rail 8 ""9
Figure 2A
Figure 2B
4

Step 3 Measure the keyframe cut
A Remove all keys from the keyframe, except end keys of each section 
(%//
!(-
*
 Measure from the back end of the first and last key in each section 8%
&/9')E,>8%09((
(!
NOTE: If more than half of the felt will be removed, it is better to remove the
rest felt and move it forward to the keyframe cut line This will require re-
leveling the keys
Figure 3
A(
  (       6       


#((F


*
5

Step 4 Bedding the Keyframe
Determine if additional support is necessary '(
(   (    "  (  (  
%E,>8-98$
, 9 !    %E/> 8) 9       (
8#$+9
A Shimming the keyframe !
     (      2(  ,  
        (  "    
(          ;  +  
%E,>8-9"%E,>8-9

% (8
9
& #   (   (      
   !   (  (   (G   

) #+(%>&>8&++19
, @         (   
8,9
+ 6
 (($


Figure 4
NOTE: On some piano, as in Kawai, there is a recess cutout on the keybed,
this area may need to be filled to properly support the keyframe The support
of the keyframe is very important This support should be placed in the same
location the keyframe shims are placed, generally 1” (25mm) x 2” (50mm)
6

Step 5 Cut the keyframe
A7((

CAUTION: ("
((
(
Figure 5
Step 6 Trace the keyframe
Steps 6-11 – a convenient time saving tip
:(
 (( -%%
!;$!@
(
:;:"(66
(6(H
(66


7

A(7(
(
Step Transfer your measurements
6 (
"(8989
(

((((
(
-
Step 8 Determine location for the
solenoid rail slot
6 3%E/>8)9.C6>.
%E,>8-989&
,I"–C >
CAUTION: :    
(01 °

MAKE SURE
    
    (   
8$-9
C #(      
%E/>8)9
        01 °
   (  2(  
       
'(7
8

 ;&> 8+% 9   C >(
-C#>8.69
# 3%E/>8)9.#8(9
%E/>8)9"
(89

Note:!(!
%E/J8)9(
"(!(
8$9(%%E&J8)/9(
(

Figure 7A
Confirm all Measurements!
“ Measure twice, cut once ”
"
#(
IK"

9

Figure 7B
Step 9 Drill the keybed
6 '((
 '("()E/>80+9(
("(
"F
(
10

Step 10 Prepare to cut the slot
6 AC>(

 #('(

#C>!(K
8C>9 (
(3
(

"-

D((C>
(
"
# (
7
!

Figure 8
11

Step 11 Cutting the slot
A Cut lines B and C $(
 "#'(
 %E/>8) 9    

"(
Note:  6       (    
 #!
7
B Cut the ends of the slot '(
$/'(7
 #"(7

C File any rough spots 3
(3G
$&&18
K9
Step 12 Re-inforce the keybed
Note: !  (   8   $9    (  
 % %E&> 8)/ 9 (      ( 
!((

Note: :((((
!
8$09
6 Prepare the reinforcement 3%E/J8)9(%%E&J8)/9

•-J8%+)9(

(
• 6(
8$09
12