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Table of Contents
Related Manuals for Yamaha Silent Piano SH Series
Summary of Contents for Yamaha Silent Piano SH Series
- Page 1 SH Series MAINTENANCE HANDBOOK Grand Piano Upright Piano MHB32 Feb. 2013 Ver. 1.0...
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Page 3: 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. Table of Contents Page Unit Structure and Names 4 Action Removal Caution 6 Check regulation and Adjustment Silent mechanism 7 Sensor Unit Adjustment Calibration Mode Test Mode Program Update Unit Connection Diagram Parts List... -
Page 4: Unit Structure And Names
1. Unit Structure and Names ■Main Unit and Pedals Grand Piano 1 Switch Box 2 Shift Pedal 3 Sostenuto Pedal 4 Damper Pedal 5 GM Unit ※AC Adaptor [PJP‐PS04] Upright Piano 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 ‐ 4 ‐... - Page 5 ■Switch Box Grand Piano Upright Piano [Front View] 1 POWER Button 2 QUIET Button (Grand Piano) PIANO Button (Upright Piano) 3 REC Button 4 STOP Button 5 PLAY/PAUSE Button 6 －/NO, ＋/YES Button [Bottom View] 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) ■GM Unit Grand Piano 1 OUTPUT L (L+R)/R Jacks 2 OUTPUT VOL. Control ‐ 5 ‐...
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Page 6: Action Removal Caution
2. Action removal caution When pulling an action for tuning and voicing, make sure to turn off the switch. Grand Piano ■Pulling an Action When pulling an action, make sure that the Silent mechanism is released and remove the white square [key sensor] connector in front of the action. Remove white square Set cables as shown in a picture. Loosen cable ties to release sensor connector. cable from Hammer rail. ■Removing a Hammer Sensor 1) Remove screws. (AX4) 2) Loosen screws. (BX4) 3) Slide Hammer Sensor Unit toward you, then lift the Hammer Sensor. Upright Piano ■Removing Lower Frontboard 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. Headphone hanger ‐ 6 ‐... -
Page 7: Check Regulation And Adjustment Silent Mechanism
3 .Check regulation and Adjustment Silent mechanism 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. Grand Piano ■Hammer shank stopper check / adjustment [Standard] ・Adjust and set the hammer shank stopper cushion to contact the hammer shank vertically. ・While the silent mechanism is disengaged, hammer shanks do not contact the hammer shank stopper when depressing keys. (Fig.1) Fig.1 [Procedure] Turn the stroke adjustment screws A and B on the treble side of the Keybed (Fig.2) as necessary to adjust the shank stopper angle. ・ Turn nut A to so that the hammer shank stopper is parallel to the strings when the silent mechanism is inactive. ・Turn nut B to so that the hammer shank stopper is vertical to the hammer shank when the silent mechanism is active. Fig.2 ■Hammer shank stopping position adjustment [Standard] Set the hammer shank stopping position to 5mm – 6mm from the strings [Procedure] Replace Hammer shank stopper cushioning as needed. Hammer shank stopping position to 5mm – 6mm from the strings Shank stopper cushioning Tickness Part No. 5.5mm T6210100 5.0mm T6210110 4.5mm T6200120 4.0mm T6210130... - Page 8 ■Regulating rod check / adjustment [Standard] ・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. [Procedure] Adjust Regulating rod drive lever adjustment screw installed in the back of the action treble side (Fig.4) ・To rotate regulating rod more : Adjust screw clockwise ・To rotate regulating rod less : Adjust screw counterclockwise Regulating rod drive lever adjustment screw Fig.3 Fig.4 ■Silent let‐off (=Hammer let‐off in the Silent mode) [Standard] Silent let‐off escapes at the shank stopping position +1mm to 2mm Silent let‐off : Shank stopping position +1mm to 2mm [Procedure] Adjust regulating rod adjustment screw （Fig.5） ・To narrow Silent mode let‐off : Rotate screw clockwise ・To increase Silent mode let‐off : Rotate screw counterclockwise [Procedure] 1) Check / adjustment of normal hammer let‐off. 2) Increase the hammer drop of the key at each end of each regulating rod to 8mm ‐ 9mm. Regulating rod adjustment screw (If the drop is not increased, jack escapement cannot be seen. This is to confirm jack escapement in Silent mode.) Fig.5 3) Confirm Silent mode let‐off on samples at both ends of each section. 4) Rotate the adjustment screw of regulating rod between the repetition levers to adjust. 5) Return the hammer drop on samples to the original position.
- Page 9 Upright Piano 4.5mm～7mm ■Hammer shank stopper check / adjustment [Standard] ・Shank stop position is 4.5mm to 7mm at each section when silent mechanism is engaged. ・While silent mechanism is disengaged, hammer shanks do not contact the hammer shank stopper when depressing keys. [Procedure] Adjust turn buckle. ・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 assembly. Adjustment screws ‐ 9 ‐...
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Page 10: Sensor Unit Adjustment
4. Sensor Unit Adjustment Adjustment is required when the unit is detached or replaced. Grand Piano ■Key sensor unit adjustment [Standard] Adjust the gap between the bottom surface of a black key located near 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 Fig.6 keyboard and Key sensor rail so that it is parallel, also when depressing the black key to the lowest point. (Fig.6) [Procedure] Adjust from the bottom of the keyboard with 2 adjustment screws to make a gap of appropriate size. Adjustment spots : Sensor brackets: 4 Adjustment screws: 2 each (Fig.7) Fig.7 Adjustment screws ■Hammer sensor unit adjustment Adjustment is required when the unit is detached for action regulation. [Standard] M2 Buzzer sound position is 0.5mm to 2.5mm before shank stopping position. (Fig.8) [Procedure] 1) Turn on the power switch while pressing the [REC] and [PLAY] to get into Test Mode. 2) Select "t04" to activate Hammer Sensor Test. Please refer to 6. Test Mode (Page 15) . 3) Rotate the adjustment dial to adjust the M2 position. Hammer shank stopping position to 5mm – 6mm from the strings M2 : Shank stopping position 0.5mm to 2.5mm Hammer sensor height adjuster （C） Long lock screw （A） Lock screw （B） Adjustment dial Fig.8 [Adjustment Procedure] 1) Loosen Long lock screw (A) （C）... - Page 11 Upright Piano ■Key sensor unit adjustment In the case of YC1, YF101, U1, YUS1, U3, YUS3, YUS5 and SU7 pianos. [Standard] Adjust the gap between the bottom surface of a black key located near 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.9.) Fig.9 KS bracket screw [Procedure] KS block binder Adjust the number of KS spacers to make a gap of appropriate size. When you remove or add a KS spacer, removing the Key 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) Fig.10 KS spacer Description Part No. Remarks ZE83100S KS spacer Black t=0.5mm KS spacer In the case of P116, P121 and M type pianos. KS block Fig.11 [Standard] Adjust the gap between the bottom surface of a black key located near 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 ...
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Page 12: Calibration Mode
5. Calibration Mode Upright Piano Grand Piano Calibration mode is a program for adjusting the key sensor and damper pedal sensor to the optimum conditions. Please confirm that the Keyboard adjustment and Pedal adjustment are appropriately done before Calibration mode is executed. The Calibration mode can be executed by pushing buttons on a control panel. Please use headphones with appropriate volume level when you check the buzzer sound. Measurement by calibration mode shall be required in the following cases: ・If the piano performance is not good enough in Silent mode. ・When replacing the key sensor rail, damper pedal sensor and Switch box. ・When adjusting the action mechanic or pedals. ■Key sensor measurement For key sensor measurement, there are “All‐key measurement” to rewrite the measurement of all of the keys, and “1‐key measurement” to rewrite only a designated key. [Start‐up] Mode Methods Operation All‐key measurement Panel button [REC] + [STOP] + POWER ON [REC] + [QUIET] + POWER ON (Grand Piano) 1‐key measurement Panel button [REC] + [PIANO] + POWER ON (Upright Piano) [Supplementary explanation] Term Explanation Aging Warming‐up the luminosity of key sensor LED to be stabilized after the system is switched ON. The number assigned to each key corresponding with it's MIDI NOTE number. * Keyboard No. Keyboard number indicated on the display is the actual key number + 20. Example; "32" on display means Key #12G# REST The keyboard is not pressed. The keyboard is fully pressed. [Key sensor measurement procedure] Before starting‐up the measerment mode confirm that all keys are in the rest position. All‐key measurement mode №... - Page 13 Status Operation Buzzer sound Display № Depress the damper pedal or push the [PLAY] button once to register the rest value, then proceed to step 5. * Pressing the same key more than once has no effect on Flash ROM measurement. writing * In case of canceling Flash ROM writing, depress the Shift or Soft pedal, or press the [STOP] button once to go back to step 3/sec "‐‐‐" is indicated on the display while the Flash ROM is writing. intermittent "PAS" indicates when writing is finished. tone "nG" and * "Keyboard No." are indicated on the display one Flash ROM after the other if Flash ROM writing has failed. If failure occurs Continuous writing on more than one key, each "Keyboard No." is indicated inturn tone at the on the display. key that * If Flash ROM writing fails nothing will have been written. measurement Please turn the power OFF and re‐start in the All‐key failed measurement mode. Complete Turn the power off to terminate the measurement mode. 1‐key measurement mode № Status Operation Buzzer sound Display Refer to "Start‐up"...
- Page 14 Status Operation Buzzer sound Display № 3/sec "‐‐‐" is indicated on the display while the Flash ROM is writing. intermittent "PAS" indicates when writing is finished. tone Finish Flash ROM "nG" and * "Keyboard No." are indicated on the display one writing after the other if Flash ROM writing has failed. If failure occurs Continuous on more than one key, each "Keyboard No." is indicated inturn tone at the on the display . key that * If Flash ROM writing fails nothing will have been written. measurement Please turn the power OFF and re‐start in the 1Key‐key failed measurement mode. Complete Turn the power off to terminate the measurement mode. ■Pedal sensor measurement Pedal sensor measurement includes the damper pedal sensor measurement which sets the half point position for adjustment. [Start‐up] Mode Method Procedure Damper Pedal Sensor Measurement Panel button [REC] + [FUNC] + POWER ON [Damper pedal sensor measurement procedure] № Status Operation Buzzer sound Display Start‐up...
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Page 15: Test Mode
6. Test Mode Grand Piano Upright Piano Test mode is a program for inspecting the operation of the electric system . The test mode is equipped with test items that check the detection position of the key sensor, hammer sensor and pedal sensor. The test mode can be executed by pushing buttons on a control panel or by pressing some keys and power button. Please use headphones with an appropriate volume level when you check the buzzer sound. Inspection by test mode shall be required in the following case: ・If the piano performance is not good enough in Silent mode . [Start‐up] Mode Method Operation Display Panel button [REC] + [PLAY] + POWER ON Test mode Keyboards [29C#], [33F], [36G#] + POWER ON [Testing items] Test mode consists of 49 testing items. The testing items that piano technician shall chiefly utilize in the field are listed below. Testing item Test No. Key sensor test (GP/UP common) Hammer sensor test (Grand Piano) Shift pedal sensor test (Grand Piano) Soft pedal sensor test (Upright Piano) Sosutenuto pedal sensor test (Grand Piano) Damper pedal sensor test (GP/UP common) Piano type selection (GP/UP common) Leave test mode (GP/UP common) * For additional information about the rest of testing item, please refer to Service Manual. [Test mode operation procedure] 1) Start‐up the test mode. 2) Push the [+/YES] or [‐/NO] button to select desired testing item. 3) Push the [PLAY] button to start‐up the selected testing item. 4) Execute the selected testing item according to the procedure. - Page 16 [Pedal sensor adjustment spots] Grand Piano Damper Pedal Sensor Adjustment Shift Pedal Sensor Adjustment Screw Sostenuto Pedal Sensor Adjustment Screw Upright Piano Soft Pedal Sensor Adjustment Screw Sostenuto Pedal Sensor Adjustment Screw Upright Piano Sostenuto Model Sensor Adjustment Screw Pedal or Pedal lever ‐ 16 ‐...
- Page 17 [Key sensor test] Grand Piano Upright Piano Status Operation Buzzer sound Display Refer to "Start‐up" Start‐up Execute Press the [+/YES] [‐/NO] button to select "t02", then press the Key sensor test [PLAY] to execute the test. Press the key to be confirmed slowly to to confirm the tone changes one after the other according to each key position. * If adjustment is required, please refer to step 5. Calibration mode (Page 15). ・・・ Rest Key depth： Continuous position Approximately 2.7mm tone Confirmation K1 ・・・ Key depth： Intermittent Approximately 4.5mm tone K2 ・・・ Key depth： Continuous K3 ・・・ Approximately 6.3mm tone K4 ・・・ Quick Key depth：...
- Page 18 [Shift pedal sensor test] Grand Piano Status Operation Buzzer sound Display Refer to "Start‐up" Start‐up Execute Press the [+/YES] [‐/NO] button to select "t05", then press the Shift pedal sensor test [PLAY] button once to execute the test. No buzzer sound (Sensor OFF) Confirm that the shift pedal sensor sounding position at the shift pedal moves the action to the right by 1mm. Confirmation * If adjustment is required, set the buzzer to sound with the shift pedal sensor adjustment screw. Continuous tone (Sensor ON) Push the [PLAY] button once to terminate the sensor testing Complete item. [Shift pedal sensor test] Upright Piano Status Operation Buzzer sound Display Start‐up Refer to "Start‐up" Execute Press the [+/YES] [‐/NO] button to select "t05", then press the Soft pedal sensor test [PLAY] button once to execute the test. No buzzer sound (Sensor OFF) Confirm that the soft pedal sensor sounding position at the soft pedal moves the hammer rail to the strings by 2mm ‐ 3mm. Confirmation * If adjustment is required, set the buzzer to sound with the soft pedal sensor adjustment screw.
- Page 19 [Damper pedal sensor test] Grand Piano Upright Piano Status Operation Buzzer sound Display Refer to "Start‐up" Start‐up Execute Damper pedal Press the [+/YES] [‐/NO] button to select "t07", then press the sensor test [PLAY] button once to execute the test. Depress the damper pedal to confirm the tone changes one after the other according to the following damper pedal position. * If adjustment is required, please refer to 5. Calibration Mode (Page 15). Pedal at the rest position Pedal not depressed. No tone Confirmation Depress the damper pedal Pedal lost motion Continuous tone slightly. Depress the damper pedal Pedal beyond the half point Intermittent more beyond half point tone position position. quick Depress the damper pedal Pedal at the end position intermittent further to the end. tone Release the damper "PAS" indicates when the pedal returns to the rest position.
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Page 20: Program Update
7. Program update Upright Piano Grand Piano Firmware update for SH series is available with the programmed USB thumb drive. Once you execute the program installation mode, the [POWER] button does not function to avoid operation error. Unplug DC IN 12V power cord from Switch box or unplug power adaptor from the AC outlet to turn the power off for installation mode termination. [Start‐up] Mode Method Operation Display Installation mode Panel button [PLAY] + POWER ON Make sure to unplug MIDI cable before you start‐up the Installation mode. Do not touch keyboards nor pedals during program installation is being processed. [Installation mode] Status Operation Display While the system is switched off, insert the programmed USB thumb Insert the USB thumb drive drive in the USB terminal in the Switch box. Execute the installation Refer to "Start‐up" mode Press the [PLAY] button once. Start program installation When installation confirmation message is indicated on the display, press the [PLAY] button once again. Program writing starts automatically and several numbers which Program writing shows the program updating situation are indication the display. Finish installation "End" indicates on display when program installation is finished. Unplug DC IN 12V power cord from Switch box or unplug power Complete adaptor from the AC outlet to turn the power off for the installation mode termination. -
Page 21: Unit Connection Diagram
8. Unit Connection Diagram Grand Piano Upright Piano Hammer sensor unit GM unit adaptor Key sensor unit DC IN adaptor unit DC‐IN DC‐IN Switch box Switch box (GP) Shift Sosutenuto Damper Pedal (UP) Soft Pedal sensor sensor Pedal sensor * Upright Piano Sostenuto Model has been installed. ・・・ Grand Piano only ‐ 21 ‐... -
Page 22: Parts List
10. Parts List Grand Piano Parts No. Description Remarks BLACK WHITE WC870100 ← SHUTTER ASSEMBLY For GP WC36820R ← KEY SHUTTER GRAY SCALE For GP ← KEY SHUTTER GS BLOCK V797790R ← HAMMER SHUTTER VZ140600 ← ZA576000 ← KEY SENSOR UNIT ZA600300 C2X/C3X/C5X ← ZA600400 C6X/C7X ← EKS3 CIRCUIT BOARD ZA598200 ← ZA606100 HAMMER SENSOR UNIT ← ZA606500 C2X/C3X/C5X ← ZA606800 C6X/C7X ←... - Page 23 Upright Piano Parts No. Description Remarks BLACK WHITE ← V7978300 KAKEGAWA PIANOS SHUTTER ASSEMBLY ← V8869100 SU7 and YI and HY PIANOS ← KEY SHUTTER GRAY SCALE V797780R For UP ← V797790R KAKEGAWA PIANOS KEY SHUTTER GS BLOCK ← V8868900 SU7 and YI and HY PIANOS ← ZA576000 U1/YUS1/U3/YUS3/U3S/YUS3S/YUS5/SU7 KEY SENSOR UNIT ← ZF364900 P116/P121/M Type ← EKS3 CIRCUIT BOARD ZA598200 SWITCH BOX UNIT ZD247600 ZD247700 ← SH‐DM CIRCUIT BOARD ZD040600 ←...
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