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Page

1

Unit

 

Structure

 

and

 

Names

 

4

2

Action

 

Removal

 

Caution

 

6

3

Check

 

regulation

 

and

 

Adjustment

 

Silent

 

mechanism

 

7

4

Sensor

 

Unit

 

Adjustment

10

5

Calibration

 

Mode

12

6

Test

 

Mode

15

7

Program

 

Update

20

8

Unit

 

Connection

 

Diagram

21

9

Parts

 

List

22

Table

 

of

 

Contents

Foreword

This

 

handbook

 

covers

 

maintenance

 

for

 

the

 

Silent

 

Piano™

 

's

 

GPS

SH

 

and

 

UPS

SH

 

series released

 

in

 

January

 

2013.

  

For

 

the

 

first

 

time

 

ever

 

the

 

Silent

 

Piano™

 

offers

 

sound

 

sampled

 

from

 

the

 

Yamaha

 

CFX

 

full

 

concert

 

grand

 

piano

 

with

 

binaural

 

sampling

 

system,

 

enabling

 

reproduction

 

of

 

natural

 

and

 

three

dimensional

 

sound.

The

 

performance

 

can

 

be

 

recorded

 

in

 

two

 

different

 

ways.

 

It

 

can

 

be

 

recorded

 

either

 

directly

 

to

 

the

 

built

in

 

recorder

 

of

 

a

 

piano,

 

or

 

to

 

a

 

USB

 

audio

 

recorder,

 

in

 

which

 

case

 

the

 

data

 

stored

 

in

 

USB

 

flash

 

memory

 

in

 

WAV

 

format

 

can

 

be

 

played

 

on

 

a

 

PC

 

as

 

well.

  

While

 

the

 

Grand

 

Silent

 

Piano™

 

requires

 

lever

 

operation

 

for

 

switching

 

to

 

"Silent"

 

mode,

 

SH

 

type

 

Silent

 

Piano™

 

does

 

it

 

all

 

via

 

motor

 

activation

 

with

 

a

 

single

 

press

 

of

 

a

 

button.

 

The

 

headphones

 

that

 

come

 

exclusively

 

with

 

SH

 

type

 

pianos

 

are

 

designed

 

in

 

a

 

way

 

that

 

minimizes

 

the

 

strain

 

on

 

users

 

after

 

long

 

hours

 

of

 

playing.

  

These

 

newly

 

employed

 

headphones

 

contribute

 

to

 

the

 

improvement

 

of

 

sound

 

quality

 

as

 

well

 

as

 

to

 

the

 

reduction

 

of

 

fatigue

 

during

 

performance.

Operability

 

of

 

program

 

for

 

servicing

 

has

 

been

 

improved

  

as

 

follows.

 

The

 

Calibration

 

mode

 

can

 

be

 

executed

 

by

 

pushing

 

buttons

 

on

 

a

 

control

 

panel.

 

The

 

state

 

and

 

result

 

of

 

calibration

 

can

 

be

 

seen

 

on

 

the

 

display

 

on

 

a

 

control

 

panel

 

as

 

well.

 

Key

 

sensor

 

test,

 

Hammer

 

sensor

 

test,

 

Pedal

 

sensor

 

test

 

are

 

incorporated

 

as

 

items

 

in

 

the

 

Test

 

mode

 

program.

Since

 

this

 

handbook

 

mainly

 

focuses

 

on

 

information

 

required

 

for

 

service

 

and

 

support,

 

please

 

refer

 

to

 

the

 

User's

 

manual

 

for

 

the

 

information

 

about

 

operation.

Summary of Contents for Silent Piano GPS-SH Series

Page 1: ...Grand Piano Upright Piano Feb 2013 Ver 1 0 SH Series MAINTENANCE HANDBOOK MHB32 ...

Page 2: ......

Page 3: ...in WAV format can be played on a PC as well While the Grand Silent Piano requires lever operation for switching to Silent mode SH type Silent Piano does it all via motor activation with a single press of a button The headphones that come exclusively with SH type pianos are designed in a way that minimizes the strain on users after long hours of playing These newly employed headphones contribute to...

Page 4: ...per Pedal 5 GM Unit AC Adaptor PJP PS04 4 3 2 1 5 4 3 2 1 5 1 Switch Box 2 Soft Pedal 3 Silent Pedal Sostenuto Pedal Sostenuto model only 4 Damper Pedal 5 DC IN Unit Soundboard Side 6 Silent Lever Sostenuto model only AC Adaptor PA 150A AC Adaptor PJP PS04 U model only Grand Piano Upright Piano 6 4 ...

Page 5: ...AUSE Button 6 NO YES Button 7 FUNC Button 8 Function Indicator 9 Display 10 USB Terminal 11 PHONES Jacks Stereo Mini 12 VOLUME Control 13 DC IN 12V Connector 14 MIDI IN MIDI OUT Connectors 15 AUX IN AUX OUT Jacks Stereo Mini 1 OUTPUT L L R R Jacks 2 OUTPUT VOL Control 10 11 12 14 15 13 1 2 3 4 5 6 7 8 9 1 2 Upright Piano Grand Piano Grand Piano 5 ...

Page 6: ...s as shown in a picture Remove white square connector Loosen cable ties to release sensor cable from Hammer rail Headphone hanger A B Grand Piano Upright Piano When an Headphone hanger is attached to the bottom of the Switch Box to remove the Headphone hanger loosen the screws as shown in the figure then slide the Headphone hanger towards you When pulling an action make sure that the Silent mechan...

Page 7: ... vertical to the hammer shank when the silent mechanism is active Fig 2 B A Grand Piano Hammer shank stopping position to 5mm 6mm from the strings Adjustment of action in the Silent mode is done with the Silent mechanism engaged Switching of silent normal play is done with the POWER or QUIET button on the front panel for Grand Piano with the Silent Pedal Center for Upright Piano Adjust and set the...

Page 8: ... the hammer drop on samples to the original position Silent let off Shank stopping position 1mm to 2mm a b Regulating rod drive lever adjustment screw Regulating rod adjustment screw Small jack s knob a and Regulating rod b respectively contact in the center position when Silent mechanism is engaged Fig 3 Small jack s knob a does not contact the Regulating rod when Silent mechanism is disengaged A...

Page 9: ...e silent mechanism is disengaged hammer shanks do not contact the hammer shank stopper when depressing keys Rotate turn buckle counterclockwise to make Shank stop position narrower Rotate turn buckle clockwise to make Shank stop position wider In case the Shank stop position differs between sections loosen adjustment screws and adjust the position of the rails of each section on the shank stopper ...

Page 10: ...r the sensor bracket and the upper surface of the key sensor unit to 3 0mm to 5 0mm when depressing the black key to the lowest point and the gap between the keyboard and Key sensor rail so that it is parallel also when depressing the black key to the lowest point Fig 6 Adjust from the bottom of the keyboard with 2 adjustment screws to make a gap of appropriate size Adjustment spots Sensor bracket...

Page 11: ... sensor bracket from the KS block is required Adjustment spots Sensor brackets 4 Adjustment hint 2 each Fig 10 11 To narrow a gap Add KS spacer s To increase a gap Remove KS spacer s Damper pedal detection position adjustment shall be done with registering Half point position in the Damper Pedal Calibration mode Please refer to 5 Calibration Mode Page 12 Shift Sosutenuto pedal sensor detection pos...

Page 12: ...on Depress the damper pedal or push the PLAY button once to the register rest value then proceed to step 4 Pressing the same key more than once has no effect on measurement 3 sec intermittent tone Confirm all keys are in the rest position Depress the damper pedal or push the PLAY button once to register the rest value then proceed to step 3 If the key is in the wrong position correct to the rest p...

Page 13: ... Soft pedal or press the STOP button once to go back to step 2 2 Key Complete to be measured Check Keyboard No of the Key to be measured on the display Depress the damper pedal or push the PLAY button once to to determine the key to be measured In case of changing the key selection press another measuring key 1 Aging Wait till aging is done AGI is indicated and DP blinks on the display while aging...

Page 14: ... the half point position 7 Finish Flash ROM writing is indicated on the display while the Flash ROM is writing PAS indicates when writing is finished Status Damper Pedal Sensor Measurement Pedal at the rest position Pedal not depressed No tone Buzzer sound Display Refer to Start up 3 sec intermittent tone nG and Keyboard No are indicated on the display one after the other if Flash ROM writing has ...

Page 15: ...f or select t49 to terminate the test mode Display Test No Testing item t02 t04 t07 Mode Method Operation Test mode Panel button Keyboards t06 t47 t05 t49 Upright Piano Grand Piano Execute the selected testing item Complete test YES PLAY PLAY YES YES YES NO NO NO PLAY Test mode is a program for inspecting the operation of the electric system The test mode is equipped with test items that check the...

Page 16: ...ent Screw Damper Pedal Sensor Adjustment Sostenuto Pedal Sensor Adjustment Screw Soft Pedal Sensor Adjustment Screw Sensor Adjustment Screw Pedal or Pedal lever Grand Piano Upright Piano Upright Piano Sostenuto Model Sostenuto Pedal Sensor Adjustment Screw 16 ...

Page 17: ...tion Press the YES NO button to select t04 then press the PLAY button once to execute the test Status Operation Buzzer sound Complete Push the PLAY button once to terminate the sensor testing item In between Hammer rest position to M1 detection position No buzzer sound Execute Hammer sensor test M2 detection position Shank stop position 0 5mm to 2 5mm Continuous tone Confirmation Press the QUIET b...

Page 18: ...terminate the sensor testing item Execute Soft pedal sensor test Press the YES NO button to select t05 then press the PLAY button once to execute the test Confirmation Confirm that the soft pedal sensor sounding position at the soft pedal moves the hammer rail to the strings by 2mm 3mm If adjustment is required set the buzzer to sound with the soft pedal sensor adjustment screw Buzzer sound Confir...

Page 19: ...tus Operation Pedal at the rest position Pedal not depressed Display Buzzer sound Display Refer to Start up Execute Piano type selection Press the YES NO button to select t47 then press the PLAY button once to execute the test Complete Push the PLAY button once to terminate the piano type selection item Confirmation Depress the damper pedal to confirm the tone changes one after the other according...

Page 20: ... on the display press the PLAY button once again Finish installation End indicates on display when program installation is finished Complete Unplug DC IN 12V power cord from Switch box or unplug power adaptor from the AC outlet to turn the power off for the installation mode termination Program writing Program writing starts automatically and several numbers which shows the program updating situat...

Page 21: ...n installed GM unit MD DC IN Switch box CN2 Key sensor unit GP Shift UP Soft Pedal sensor Sosutenuto Pedal sensor Damper Pedal sensor CN1 Hammer sensor unit CN1 CN4 CN5 Grand Piano only DC IN unit AC adaptor DC IN AC adaptor Switch box Upright Piano Grand Piano 21 ...

Page 22: ...IRCUIT BOARD ZA103600 PEDAL SENSOR UNIT LG WR310200 DAMPER PEDAL PEDAL SENSOR UNIT SG WV003000 SHIFT PEDAL PEDAL SENSOR UNIT SOG WU740200 SOSTENUTO PEDAL GM UNIT ZE297300 SH GMA CIRCUIT BOARD ZE000100 SH GMB CIRCUIT BOARD ZF689200 GP MOTOR UNIT WN661200 SWB KP CONNECTOR ASSEMBLY ZD143500 SWITCH BOX to TERMINAL CONNECTOR SWB KS CONNECTOR ASSEMBLY ZD176900 TERMINAL CONNECTOR to SENSOR UNITS SWB GM C...

Page 23: ...RCUIT BOARD ZA103600 PEDAL SENSOR UNIT L VQ461900 DAMPER PEDAL PEDAL SENSOR UNIT SH WK149900 SOFT PEDAL PEDAL SENSOR UNIT SOC WK725500 SOSTENUTO PEDAL Sostenuto model only WD275500 ZF030700 Only U model SWB KP CONNECTOR ASSEMBLY ZD143500 SWITCH BOX to SENSOR UNITS DC PLUG CONNECTOR ASSEMBLY ZE724100 SWITCH BOX to DC IN UNIT WR527000 PA 150A WW333300 Only U model PJP PS04 POWER CORD ASSEMBLY WJ3736...

Page 24: ......

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