Yamaha Disklavier DKC55RCD XG Mark III Maintenance Handbook Download Page 11 | Manualshive

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9

Silent Control Box (for models with Silent system playback)

1

[SILENT] button

Used to engage the Silent system.
The acoustic piano is silenced and sound is output from
the digital piano.

2

SILENT ON indicator

Lights when the Silent system is engaged.

3

VOLUME knob

Used to adjust the volume level of the digital piano and
internal XG tone generator in the Silent system.

4

HEADPHONES jacks

Connect HPE-170 stereo headphones (optional) or other
standard stereo headphones here for listening to play-
back in Silent mode.
You can connect up to two sets of headphones.

5

REVERB knob

Used to adjust the amount of reverb for the digital piano
tone generator.

SILENT

ON

VOLUME

HEADPHONES

1

3

4

REVERB

5

2

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Summary of Contents for Disklavier DKC55RCD XG Mark III

Page 1: ...Grand Piano Mark III Series MAINTENANCE HANDBOOK FOR THE PIANO TECHNICIAN MHB18 00 06 CR Printed in Japan ...

Page 2: ...s only 2 Expanded memory and programs all models 3 SmartKey System on full function models only NEW UNITS 13 1 Controller 2 Key Sensor 3 Key Drive Unit 4 Amplifier Unit 5 Shank Stopper UNIT DIAGRAM MOUNTING THE SPEAKERS AND ATTACHING THE CABLES 17 OPERATION 18 Balancing the Ensemble Volume TG Master Balance Balancing the CD Volume CD Master Balance Applies only to models with CD ROM drives MAINTEN...

Page 3: ...its have been added FEATURES The MARK III series product line is a simplified reorganization of the MARK II XG Grand Piano product line Mark III models are arranged in accordance with acoustic models as shown below DKV MARKIII LINE UP Maintenance procedures vary according to the DKV type and model Please carry out maintenance in accor dance with the information provided for the model you are worki...

Page 4: ... the DGP1 into silent mode will not cause the keyboard to produce sound from the internal tone generator The silent system is provided for playback only it allows the user to switch from acoustic to digital sound from the internal piano tone generator at time of playback This makes it possible for users to play back ensemble pieces using both the XG generator and the piano tone generator with full...

Page 5: ...nction models Same as full function models above except that the following unit is added 1 beam 4 point hammer sensor Underside diagrams for all models Locations on different models as viewed from bottom GA1 A1 GH1 GP1 C1 C2 C3 C5 C6 C7 ...

Page 6: ...lect songs In Play mode Used to fast preview and review In Pause mode Used to fast forward and reverse 0 PART L R buttons For L R and Ensemble songs these buttons allow you to choose which part to play back L left hand part R right hand part or both Press both buttons together to turn pedal playback on or off so that you can play the pedals yourself A ENTER button Used to select and execute functi...

Page 7: ...CONTROL CABLE FOR PIANO Used to connect the control cable from the piano 4 MIDI OUT Used to connect external MIDI equipment for outputting MIDI data 5 MIDI IN Used to connect external MIDI equipment for inputting MIDI data This chapter describes the functions of the buttons and other parts of the Disklavier HOST SELECT TO HOST MIDI PC1 PC2 MAC OUT MIDI IN TO CONTROL CABLE FOR PIANO 1 2 3 4 5 ...

Page 8: ...SONG SELECT REV FWD buttons In Stop mode Used to select songs In Play mode Used to fast preview and review In Pause mode Used to fast forward and reverse D PART L R buttons For L R and Ensemble songs these buttons allow you to choose which part to play back or record L left hand part R right hand part or both The indicators light in green during playback and in red during recording Press both butt...

Page 9: ...nect audio equipment such as an external CD changer 3 TO HOST serial port Used to connect the Disklavier with a personal com puter 4 HOST SELECT Used to select the host computer connected to the TO HOST connector 5 TO CONTROL CABLE FOR PIANO Used to connect the control cable from the piano 6 MIDI OUT Used to connect external MIDI equipment for outputting MIDI data 7 MIDI IN Used to connect externa...

Page 10: ...nnectors 6 BASS knob Used to adjust the bass sound of the built in speakers 7 TREBLE knob Used to adjust the treble sound of the built in speakers 8 Foot Controller connector Connect the optional YAMAHA FC 4 FC 5 or FC 7 foot controller here 9 Amplified speakers Amplified speakers are mounted to the underside of the piano 8 Foot Controller connector Mounted underneath Mounted underneath Mounted un...

Page 11: ...ged 3 VOLUME knob Used to adjust the volume level of the digital piano and internal XG tone generator in the Silent system 4 HEADPHONES jacks Connect HPE 170 stereo headphones optional or other standard stereo headphones here for listening to play back in Silent mode You can connect up to two sets of headphones 5 REVERB knob Used to adjust the amount of reverb for the digital piano tone generator ...

Page 12: ...IDI Connector Lower level CTRL Sheet FDD L R CD Control Upper level DKC55RCD only DSP Sheet CD Drive Amplifier Assembly Power Supply Unit FU Assembly Transformer Switch AC Inlet Lower level Jack Assembly DB51 MN Sheet not for DGA1 Upper level ...

Page 13: ...nt Keyrecord Play S Hammer Record Play S Piano Type DGA1 DGP1 DA1A DGH1BA DC1A DC2A DC3A DC7A Control Compact Type DKC55 Compact Type DKC55 Compact DKC55RCD Compact DKC55RCD CD drive CD drive EMK 16MB EMK 16MB EMK 16MB EMK 16MB Calendar Calendar Calendar Calendar Drive High Power High Power High Power High Power Key Solenoid Key Solenoid Key Solenoid Key Solenoid Sensor No No Continuous KeySensor ...

Page 14: ...arious types of automated playback sequences as indicated below Note Users are free to copy copy protected songs from commercial disc media into the internal memory disks but cannot recopy or dub the protected data to floppy disk Chain Play Set up arbitrary groups of memory disks then play back automatically in sequence from any selected group Define up to 10 groups Repeat ALL Repeat all songs in ...

Page 15: ... Disklavier has an internal calendar that can be set from 1 1 1985 00 00 00 to 12 31 2084 23 59 59 Set the calendar accurately so that the Disklavier displays the correct current time during Stop mode Setting the correct time is also important for engaging timer controlled programs Time is displayed in 24 hour format 1 Hold down FUNC and press STANDBY ON The setup menu appears 2 Press until the cu...

Page 16: ...beam continuous position optical sensor This sensor provides a sensor calibration function When the key sensor unit is manufactured the change in the beam as the shutter moves from its open to its close position is measured over the full stroke for each key and the curve for each key is recorded on the sensor sheet Then after the sensor is installed in the piano the beam is measured for open key r...

Page 17: ... volume from the con trol box and switch box 5 Shank Stopper The shank stopper s drive motor MD unit is mounted on the right rear of the key bed The motor drives both the shank stopper and the regulating rod The regulating rod is attached to the hammer rail at the front of the regulating button The regulating rod adjustment screws are accessible from the front For more information refer to Mainten...

Page 18: ...nsor for Playback Only models HP SHEET SPEAKER L SPEAKER R Switch Box JACK SHEET Amplifier MA120 KEY SENSOR XG DB51 Fuse FU SHEET Power Supply PS UNIT MD SHEET MN SHEET HAMMER SENSOR C3 C7 ONLY KEY DRIVE UNIT DRIVE SHEETS PK SHEET PEDAL DRIVE AMP UNIT CONTROL UNIT ...

Page 19: ...ge 3 Use 3 screws for each speaker The nuts are embedded in the struts Position so that the sound output side of each speaker will face down after the piano is turned upright 3 Connect each connector to the corresponding cable from the Amplifier Unit Connectors attach in one direction only Although the R speaker has 4 pins only 2 of the pins are used 4 Collect slack cable and bundle into the cable...

Page 20: ...or decrease the overall volume in a normal fashion These balance settings are stored in the Control Unit and are saved even when the Disklavier is turned off 1 Play back an Ensemble song 2 Press the Selector until the BALANCE indicator lights The following display appears 3 Use the NO and YES buttons to adjust the volume of the internal XG tone generator TG Master balance can adjust the volume fro...

Page 21: ...ol to conveniently increase or decrease the overall volume in a normal fashion These balance settings are stored in the Control Unit and are saved when the Disklavier is turned off 1 Play back a CD 2 Press the Selector until the BALANCE indicator lights The TG Master Balance display appears 3 Press the Selector once more The CD Master Balance display appears 4 Use the NO and YES buttons to adjust ...

Page 22: ...the action 7 If necessary remove the hammer sensor models C3 to C7 The screws on the shank rail side of the hammer sensor secures both the regulating rod and the sensor This means that you must remove the regulating rod first then remove the sensor then reattach the rod and carry out adjustment as necessary If you need to completely remove the regulating rod you can do so by first removing the act...

Page 23: ...21 MD Unit Diagram and LED Table This adjustment is generally not required MD UNIT LED Green Green Green Red Red Red Silent On Silent Off ...

Page 24: ...th 1 Specify a disk When you select a Memory Disk the reset function will be effective for the selected disk only If you select Memory Disk 0 the disk is reset in SMF format and an opening song or songs are automat ically re recorded on the disk If you select Memory Disk 1 to F the disks are reset in SMF format and nothing is recorded on the disk 2 Press FUNC The FUNC indicator lights and the Func...

Page 25: ...ATTED MEMORY DISK appears this indicates that all Memory Disks are damaged 1 In the Reset display press ENTER The following display appears 2 Reset the Memory Disk as described above Notes If you accidentally turn off the Control Unit while data is being stored to a Memory Disk one or all Memory Disks may be damaged They can only be recovered by returning them to initial fac tory settings Be sure ...

Page 26: ... Re writing of table data for keyboard p 33 Playback Models p 34 Piano tables condition PASS number check p 35 Display only Display only Display of playback table in the memory p 36 Pedal record play mode p 36 Keyboard damping data adjustment p 37 1 Minimum pressure single note check 13 Sustain pedal Half pedal time check 14 15 Sustain pedal half point hold check 1 1 key correction 2 All key corre...

Page 27: ...ano regulation keyboard measurement 3 Five continuous strokes a Check for repetition b Velocity reference around 064 good c Timing reference around 125 good Uneven piano regulation piano table Piano regulation keyboard measurement 4 Sustain pedal half pedal action check a Check the half pedal incremental operation Inadequate piano pedal adjustment piano table Piano pedal adjustment sustain pedal m...

Page 28: ... Check noise Inadequate piano pedal adjustment Piano pedal adjustment shift pedal measurement 10 Shift pedal timing check fast a Check simultaneous action of pedal and key striking 11 Shift pedal timing check slow a Check simultaneous action of pedal and key striking 12 Sustain pedal continuous 50 times operation a Check the operation b Check noise 13 Sustain pedal half point time check a Check mu...

Page 29: ...n sation value Playback data minimum value Adjustment procedure Terms OFFSET Automatic temperature compensation Manual correction is not possible Continuous usage of the DISKLAVIER MK III raises the temperature of the solenoids Since the playback function of the solenoids in particular playback of very soft notes degrades as the temperature increases playback data is automatically compensated when...

Page 30: ...ES NO 03 DRIVE 03 03 03 R 3 times The measured and calculated table data are restored to the EEP ROM on PK CTL board PLAY button Enters pedal measurement REC button Enters half point adjustment Sustain pedal measurement Pow Drive power applied to solenoid Pos Current position of the pedal Sustain pedal range display Sustain pedal half point adjustment Manual adjustment through mute time of sustain...

Page 31: ...ay Take appropriate action corresponding to the PASS number if it is displayed after measurement See page 28 Playback stroke end value MIDI 7Fh compensation Parameter value manual compensation soft pedal SOFT PEDAL MEASUREMENT SOFT MIDI 7Fh XXX XXX PED SOFT MIDI 7Fh XXX YYY PED END 04 FUNC P Depress pedal fully Playback Models Measured data A New data B DRIVE Restore the data XXX Original measured...

Page 32: ...hen the pedal is fully depressed 3 Pedal measurement Maintenance mode 03 4 Half point adjustment Maintenance mode 03 Standard Mute time 1 5sec 5 Data parameter value manual compensation Maintenance mode 03 Normally not necessary 1 Pedal cap nut adjustment Adjustment for pedal cap nut acoustic adjustment Standard No lost motion 2 Key block screw adjustment Adjustment for key frame stop screw acoust...

Page 33: ... procedure label Inside the piano unit is a label containing the pedal adjustment procedures Please refer to this label for the proper adjustment procedure The label is attached to the inside cover of the pedal drive unit ...

Page 34: ... 00 04 01 Display data for each pedal range Display error message Display PASS No Display the PK ROM version when measured L sustain pedal A D data S soft shift A D data can be changed by depressing the pedals Pedal measurement mode Half point adjustment mode sustain Manual compensation mode END Power 00 R 3 times R 4 times 03 04 VOLUME TEMPO TRANSPOSE BALANCE DRIVE FUNC Playback Models ...

Page 35: ... which matches the con dition of the action Keyboard measurement should be carried out when the piano is delivered and installed when piano action regulation has been carried out when instability of pianissimo passages in detected in automatic playback Measurement phases There are 5 kinds of measurement phases 01 minimum pressure 05 fortissimo Each measurement phase measures four pedal ON OFF cond...

Page 36: ...stical data This timing must be further adjusted to account for differences between individual pianos Adjustment is made by changing the TIM_OFST values as neces sary For continuous adjustment the first beat of each three beat measure plays out the piano tone while the subsequent beats produce Clicks from the internal tone genera tor For single key adjustment the tone generator will produce clicks...

Page 37: ...for the keyboard pedal OK PASS No indi cation If a PASS number is displayed take the necessary countermeasures Beeping will sound at the point on the keyboard pedal where PASS occurs BEEP Key No 01 88 Sustain Soft pedal Keyboard 00 OK Please refer to PASS No information Pedal Please refer to pedal measurement KEY NO 01 00 00 a PASS No in the pedal phase 01 b PASS No in the pedal phase 02 a b Displ...

Page 38: ...rd Address for the EEP ROM 0000 1FFC Select button Select button a The data addressed above b The next data of address a c The next data of address b d The next data of address c EEP ADDRESS 0000 00 00 00 00 a b c d Data Display 9 Pedal PLAY REC mode MAINTENANCE MODE GP PEDAL PLAY REC MODE PEDAL MODE LOUD HP SOFT HP END MAINTENANCE MODE GP Power 00 R 10 10 DRIVE 10 00 An emergency mode to change t...

Page 39: ...restrain keys during their return so as to reduce impact noises produced by excessively rapid return action Specifically the damping value sets the amount of counterforce applied to the keys during their return Higher values therefore produce slower return The damping value you set here is applied to all keys Adjust the value so that all keys are moving normally Explanation of terms Damping value ...

Page 40: ...AY 3 Sound Test Press PLAY 3 PK ROM TEST Press PLAY 5 AIC Test Press PLAY 4 Switch Test Switch Rmt Ctl 4 PK RAM TEST Press PLAY 6 DIGITAL I O Test 5 DRAM Test Press PLAY 5 PK EEP TEST Press PLAY 7 CTRL I O Test 6 Flash R W Test Press PLAY 8 CD Test Press PLAY 7 Flash Read Test Press PLAY Clear EEP ROM yes R no L 9 Test Tone L COS R SIN 440Hz 8 Host I O Test OK 9 MIDI I O Test OK 10 Piano I O Test ...

Page 41: ...OGRAM Ver 1 00 MN ROM V 1 00 00 04 01 MESSAGE 1 KEY SENSOR DEPTH TEST END 2 HAMMER SENSOR HEIGHT TEST C3 C7 only 3 SOSTENUTO PEDAL TEST GP HMR SNSR EDGE CHK C3 C7 only NO RST 255 K1 K2 K3 K4 01 150 149 119 93 67 45 AD 255 test OK AD 87 test OK AD_RATE SENSOR MEASURE M VELOCITY CHECK PLAY PLAY PLAY PLAY ...

Page 42: ...nal test 8 Host I O Test OK MIDI communication test connect MIDI out to MIDI in with a MIDI cable before the test 9 MIDI I O Test OK Communication test between the control unit and the PK CTL board 10 Piano I O Test OK L and R displayed alternately 11 DB51 I O Test LR DKC55RCD only Communication between CTRL sheet and DSP sheet 12 DSP I O Test OK Floppy Disk Drive Write and Read test Floppy disk d...

Page 43: ...time pedal sensing data display 2 FOOT CTL TEST PRESS PLAY Foot controller test 3 PK ROM TEST PRESS PLAY PK CTL ROM test 4 PK RAM TEST PRESS PLAY PK RAM test 5 PK EEP TEST PRESS PLAY PK EEP ROM test Clear EEP ROM yes R no L Clearing the EEP ROM is normally only necessary following the replacement of a PK CTL board Select button X4 ...

Page 44: ...N SENSOR ONE KEY XX READING OPEN SENSOR ONE ADJ K 41C 00 VEL 102 0 SENSOR ALL KEY MEASURE READING REST SENSOR ONE KEY XX READING REST SENSOR ONE ADJ K 41C 03 VEL 102 0 SENSOR ALL KEY MEASURE READING END write SENSOR ONE KEY XX READING END write SENSOR ONE ADJ K 41C NOW WRITING TO FLASH SENSOR ALL KEY MEASURE NOW WRITING TO FLASH SENSOR ONE KEY XX NOW WRITING TO FLASH SENSOR ONE ADJ K 41C COMPLETED...

Page 45: ...OR HISTORY ERROR HISTORY DISPLAY Errors are displayed in the order of frequency Title display 01 PIANO POWER OFF COUNT 002 END R Clear memory DRIVE Playback Models Error message Error No Number of occurrences ...

Page 46: ...0 UPDATE PK CTL sheet REWRITE SYSTEM PROGRAM ENT The current version is displayed automatically INSERT UPDATE DISK PLEASE WAIT V4 00 V4 20 CTRL SURE YES NO or V 1 00 V 1 10 KEY SURE YES NO or V 1 00 V 1 10 SNSR SURE YES NO or V 1 00 V 1 10 DSP SURE YES NO V2 200 V2 300 DO NOT REMOVE DISK 238 count down When the display appears for the sheet that you wish to rewrite press YES COMPLETE TURN OFF Turn...

Page 47: ...Countermeasures 00 Nomal 01 02 03 04 Pedal movement problem Acoustic adjustment problem Hammer sensor problem Pedal acoustic adjustment Pedal measurement Piano acoustic adjustment Check the hammer sensor sensor test 10 20 30 Key drive problem Hammer sensor problem Check key drive unit Check the hammer sensor sensor test 11 21 31 12 22 32 13 23 33 14 24 34 Pedal movement problem Acoustic adjustment...

Page 48: ...OUT DATA ERROR MIDI IN data receive error 90 INSERT DISK Disk not ready Disk error 68 PIANO IN OUT DATA ERROR Piano IN OUT buffer overflow 91 DISK WRITE PROTECTED Write protected Disk error 69 MIDI IN OUT DATA ERROR MIDI IN OUT buffer overflow 92 ERROR OCCURRED PUSH STOP KEY Allocation error Disk error 70 REPEAT 255 TIMES ALREADY The disk or a song on the disk has repeated a maximum of 255 times i...

Page 49: ...PEDAL OVER LOAD ERROR The keyboard sustain soft shift pedal playback stop Press STOP button to reset Sustain pedal movement and operation is not within acceptable range Check the acoustic pedal adjustment and pedal sensor board 13 SOFT PEDAL OVER LOAD DISABLE Soft shift playback playback stop Turn power off then back on to reset Soft shift pedal movement and operation is not within acceptable rang...

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