Yamaha Disklavier Silent Series User manual

D
With Silent Function
Service Manual
MPX100II
Upright Piano

TM
SERIES
MP100II
TheDISKLAVIERsilentpianoMPX100IIisessentiallythesameasa MX100II,withanadditionalsilent
function.
ThisservicemanualdescribesonlythedifferentpartfromtheMX100II.
YoumusthavetheMX100IIservicemanual(008659)beforeservicingthisunit.
Forthefollowingsectionsoftheservicemanual,pleaserefertotheMX100IIservicemanual(008659).
Maincontent:
Formattingfloppydisk
Panellayout
Controllerfrontpanel,Remotecontrol
LCDerrormessages
Disassemblyprocedure
Upperfrontboard,Lowerfrontboard,Actionunit,Controlunit,Controllerboard,FDDunit,Key
sensorunit,PK-CTLcircuitboard,DriveA circuitboard,DriveB circuitboard,DriveC circuitboard
Plungerassembly,Coilassembly,Pedaldriveunit,PSassembly
Sensoroutputvoltage(Pedaldriveunit)adjustment.
LSIpindescription(excepttheLSIsinMNcircuitboardandMotordrivecircuitboard)
ICblockdiagram(excepttheICsinMNcircuitboardandMotordrivecircuitboard)
Circuitboards
CONTROLLER,7 SEGLED,POWERSWITCH,CTRL-OUT,CTRL-IN,PANELSWITCH,
HAMMEREMISSION,KEYRECEIVE,KEYEMISSION,DRIVEA,DRIVEB,DRIVEC, POWER
SUPPLYunit
Partslist
Mechanicalparts
KEYSENSORUNIT,KEYDRIVEUNIT
Electricalparts
Circuitboards(CONTROLOUT,CONNECTION,PANELSWITCH,HAMMEREMISSION,KEY
RECEIVE,KEYEMISSION,DRIVEA,DRIVEB,DRIVEC),POWERSUPPLYUNIT
CONTENTS
SPECIFICATIONS2
PANELLAYOUT3
UNITLOCATION4
WIRING5
DISASSEMBLYPROCEDURE6
LSIPINDESCRIPTION8
ICBLOCKDIAGRAM10
CIRCUITBOARDS11
TESTMODE20
MIDIDATAFORMAT22
MIDIIMPLEMENTATIONCHART24
PARTSLIST
YAMAHACORP.
HAMAMATSU,JAPAN
1.7K-324PrintedinJapan'95.9
PP
008564

MPX100 II
WARNING:
ComponentshavingspecialcharacteristicsaremarkedA andmustbereplacedwith
partshavingspecificationsequaltothoseoriginallyinstalled.
WARNING:CHEMICALCONTENTNOTICE!
ThesolderusedintheproductionofthisproductcontainsLEAD.Inaddition,other electrical/
electronicand/orplastic(whereapplicable)componentsmayalsocontaintracesof chemicalsfound
bytheCaliforniaHealthandWelfareAgency(andpossiblyotherentities)tocausecancerand/orbirth
defectsorotherreproductiveharm.
DONOTPLACESOLDER,ELECTRICAL/ELECTRONICORPLASTICCOMPONENTSINYOURMOUTH
FORANYREASONWHATSOEVER!
Avoidprolonged,unprotectedcontactbetweensolderandyourskin!Whensoldering,donotinhale
solderfumesorexposeeyestosolder/fluxvapor!.
Ifyoucomeincontactwithsolderorcomponentslocatedinsidetheenclosureof thisproduct,
washyourhandsbeforehandlingfood.
IMPORTANTNOTICE
ThismanualhasbeenprovidedfortheuseofauthorizedYamahaRetailersandtheirservicepersonnel.
Ithasbeenassumedthatbasicserviceproceduresinherenttotheindustry,andmorespecificallyYamaha
Products,arealreadyknownandunderstoodbytheusers,andhavethereforenotbeenrestated.
WARNING: Failure to follow appropriate service and safety procedures when servicing this product
mayresultinpersonalinjury,destructionofexpensivecomponentsandfailureofthe
producttoperformasspecified.Forthesereasons,weadviseallYamahaproductowners
thatallservicerequiredshouldbeperformedbyanauthorizedYamahaRetailerorthe
appointedservicerepresentative.
IMPORTANT: The presentation or sale of this manual toany individual or firm does not constitute
authorization,certification,recognitionofanyapplicabletechnicalcapabilities,or
establisha principle-agentrelationshipofanyform.
Thedataprovidedisbelievedtobeaccurateandapplicabletotheunit(s)indicatedonthecover.The
research,engineering,andservicedepartmentsofYamahaarecontinuallystrivingtoimproveYamaha
products.Modificationsare,therefore,inevitableandchangesinspecificationaresubjecttochangewithout
noticeorobligationtoretrofit.Shouldanydiscrepancyappeartoexist,pleasecontactthedistributor's
ServiceDivision.
WARNING: Static discharges can destroy expensive components. Discharge any static electricity your
bodymayhaveaccumulatedbygroundingyourselftothegroundbussintheunit(heavy
gaugeblackwiresconnecttothisbuss).
IMPORTANT: Turn the unit OFF during disassembly and parts replacement. Recheck all work before
youapplypowertotheunit.
___ __
1

MPX100 II
SPECIFICATIONS
DriveSystem
SongStorage
Controlpanel
RemoteControl
PlaybackFunctions
RecordingFunctions
Metronome
UtilityFunctions
Quick Silent System
ActionSensor
PedalSensor
KeyDrive
PedalDrive
Media
Capacity
DiskCapacity
FileFormat
Switches
Buttons
*withLEDIndicator
Controls
LCD
SongNumberIndicator
Buttons
Volume
Tempo
Transposition
Repeat
SongSelect
MusicSearch
Others
L/RDualRecording
Re-recording
PunchIn
NoteEdit
bpm
TimeSignature
Beep
Song
Disk
TitleEntry
88key,speedsensing,single-beamopticalsensors
Dualkey/Hammerlocations
16-notepolyphonic
SustainContinuous(halfpedal)
—————————————————— Position sensing optical sensors
Soft Continuous(halfpedal)
Self-calibrating,long-stroke,key-endsolenoids,16-notepolyphonic
Sustain:Continuous(halfpedal)
Trapworkintegratedsolenoids
SoftContinuous(halfpedal)
3.5"2DDfloppydisk
Max60songs(dependsonsongfilesize)
628KByte
E-SEQ
Poweron/off
SongSelectRev•Fwd,Play/Pause*,Stop,PartSelectL*•R*,Record*,
Volume*,Transpose*,Tempo*,Repeat*,-/NO,0,+/YES,<>Cursors,Enter,
Disk*,Metronome*,Function/Edit*
RotarydialwithringofLEDindicators
24character,2 line
7segment,2digitdisplay
Record,PartSelectL•R,0~9keypad,Search,Repeat,A-B,Transpose
-/0/+,Tempo-/0/+,Rev•Fwd,Volume-/+,SongSelectRev•Fwd,Play,
Pause,Stop
11levels(0~ -10)w/power-offmemory
-50%~ +20%by1%steps
±24semitones(2octaves)in1-semitonesteps
Disk,song,segmentA-B,random
Rev/Fwd,songbysong,numericalselection
Rev/Fwd,w/orw/osound,directbytimeormeasure
L/RPartSelect,PedalCancel,ProgrammedPlayback,SpacePlay,Auto
Start
SeparateL/R(fullkeyboard)orassignablesplitpoint,PedalCount-In
Fullkeyboard
Fullkeyboard
Note,velocity,length,timing,insert,delete
40~230
1/4, 2/4, 3/4, 4/4, 5/4, 6/4, 7/4, 8/4, 9/4
on/off,VolumecontrollableinSilentmodewithflashingLEDandclicktone
Copy,Sort,Delete,MX100A/Bconversion
Format,Copy,Convert
Disk64charactersmax
Song32charactersmax
Harmmershankstopperoperatedbycenterpedal
DigtalPianoTone
Generator
Polyphony
Volume
ReverberationTypes
Pitch
Terminals
PowerSource
Dimensions(HxWxD)
Weight
AWMstereosampling
16-notestereo,32-notemono,switchableandmemorizable
Continuous
Room,Hall1,Hall2(4depthlevelseach),memorizable
SetatA=440,tunable±50centsin1 2 centstepsw/power-offmemory
Headphones(2),MIDIIn,MIDIOut,AUXIn,AUXOut,FOOTCNTRL
LocalACcurrent
121x 150x 61cm(47-3/4"x 59"x 24")
238kg (524 Ibs)
2
SensorSystem
_____________________
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MPX100 II
Finish
SuppliedAccessories
OptionalAccessories
LocationTemperature
PowerRequirement& Consumption
Polishedebony
Remotecontrol& batteries
DisklavierSilentpianosampledisk(PianoSoft)
Blank3.5"2DDfloppydisk
HPE-170headphones
Getting Started & Playback Manual
Advanced Operation Manual
HOW TO CARE FOR YOUR YAMAHA PIANO guide
FC-4,FC-5FootSwitches(cablelength1.7m)
FC-7FootController(cablelength1.7m)
5~40°C(41~104°F)
SeeDiskiavierSilentpiano'sSerialNo.plate
PANELLAYOUT
•MainSwitch,MIDIConnections& FootController
•Switchbox
3

MPX100 II
UNITLOCATION
4

MPX100 II
WIRING
5

MPX100 II
DISASSEMBLYPROCEDURE
1Hammersensorunit
1-1Openandlockthetopboard.
1-2Removetheupperfrontboard.
1-3Removetheactionunit.
1-4Removethefour(4)screwsmarked[175S],
thenremovetheshankstopunit.(Fig.1)
1-5Removethefour(4)screwsmarked181S],
thenremovethehammersensorunit.(Fig.2)
(Fig. 1)
(Fig.3)
2MNunit
2-1Removethelowerfrontboard.
2-2Loosenthethree(3)screwsmarked[171S],
thenslightlyshifttheMNunittotherearand
removetheMNunit.(Fig.3)
2-3Removetheseven(7)screwsmarked[5G],
thenremovetheMNcircuitboardfromMN
unit.(Fig.3)
3Sub-powersupplyunit
3-1Removethelowerfrontboard.
3-2Removethetwo(2)screwsmarked[172S],
thenremovetheSub-powersupplyunit.(Fig.4)
(Fig.4)
6

MPX100 II
4MD(motordrive)unit
4-1Removetheupperfrontboardandthelower
frontboard.
4-2Removethearmclip(spring)whichisconnectedto
theshankstopunitlever.
4-3Removethewireholder.
4-4Cutthecordholder.
4-5Loosenthetwo(2)screwsmarked[173S],
thenslightlyshifttheMDunittotherightside
andremovetheMDunit.(Fig.5)
(Fig. 5)
(Fig. 6)
5Switchbox
5-1Removethefour(4)screwsmarked[073S],
thenremovetheswitchbox.(Fig.6)
6HP(1/2)circuitboard
6-1Removetheswitchbox.(Seeprocedure5)
6-2Removethevolumeknob.
6-3Removethethree(3)hexagonalnutsforthe
volumeandheadphones,thenremovethe
HP(1/2)circuitboard.(Fig.6)
(Fig. 8)
(Fig.7)
8CTRLINcircuitboard
8-1Removetheswitchbox.(Seeprocedure5)
8-2Removethehexagonalnutforthefootcontrol,
thenremovetheCTRLINcircuitboard.(Fig.8)
7HP(2/2)circuitboard
7-1Removetheswitchbox.(Seeprocedure5)
7-2Removethetwo(2)screwsmarked[10G].
7-3Removethetwo(2)hexagonalnutsfortheAUXIN
andtheAUXOUT,thenremovetheHP(2/2)circuit
board.(Fig.7)
7

MPX100 II
LSIPINDESCRIPTION
•HD6473308F10(XQ458A00)CPU(H8/330)
Reset
Clock
Modeselect
Non-maskableinterupt
stand-bymodesignal
Powersupply
Port5
(Transmitdata)
Ground
(Addressstrobe)
(Writestrobe)
(Readstrobe)
Port9
Port6
Analogpowersupply
Analoginput
Analogground
Port4
Port4
Powersupply
Addressbus
Ground
Addressbus
Databus
Ground
Port8
Function Function
XTAL
EXTAL
MD1
MD0
VCC
P52
ARxD
ATxD
VSS
P97
P96
AS
P92
P91
P90
P60
P61
P62
P63
P64
P65
P66
P67
AVCC
AN0
AN1
AN2
AN3
AN4
AN5
AN6
AN7
AVSS
P40
P41
•PCM1702U(XP551A00)DAC(DigitaltoAnalogConverter)
Powersupply( + 5A)
Bipolardecouple
Outputcurrent
Analogground
Servodecouple
Referencedecouple
Powersupply( - 5A)
Datainput
Clock
Powersupply( + 5A)
Digitalground
Powersupply( - 5A)
Latchenable
FUNCTION
DATA
CLK
NC
+Vdd
DGND
-Vdd
L.E
NC
NC
NC
8

MPX100 II
•YMW265B-F(XK281B00)CVG(ConvolutionVoiceGenerator)
WaveROMchipselect
Keyon& LFOonoutput
NSYSoutput(8-channelx 4)
Keyon& LFOoninput
NSYSinput(8-channelx 4)
Powersupply( + 5V)
Ground
NSYSinput
MELstereomixinginput
MELreverberationinput
RAMchipenable
RAMchipenable
RAMdatabus
RAMoutputenable
RAMaddressbus
Powersupply( + 5V)
Ground
RAMwriteenable
Registerdatabus
Registeraddressbus
FUNCTION
FUNCTION
Read
Write
Chipselect
CDoutput
MELstereooutput
MELstereomixinginput
DACL/Routput
Latch enable
Sample/HoldL channeloutput
Sample/HoldR channeloutput
2chipsmode(0= 1 chip,1 = 2 chips)
Slave/Masterselect(0=master,1=slave)
Powersupply(+5V)
Ground
Initialclear
Crystalosc.
Crystal/Ext,clock
12.8MHzosc.output
12.8MHzmasterclockinput
6.4MHzclockoutput(NSYS)
3.2MHzclockoutput(MEL,LDSP,DAC)
12.8MHzsync.signalinput
12.8MHzsync.signaloutput
6.4MHz/3.2MHzsync.signaloutput
WaveROMoutputenable
WaveROMdatabus
(Powersupply( + 5V))
(Ground)
WaveROMaddressbus
WaveROMchipselect
CDO
MELO0
MELO1
MELO2
MEL03
MELI1
DACLR
LE
SHL
SHR
2CHIP
V DD
Vss
XTAL
EXTAL
MCLKO
MCLKI
HCLKO
QCLKO
SYWI
SYWO
SYOD
M D0
MD1
MD2
MD3
MD4
MD5
MD6
MD7
MA0
MA1
MA2
MA3
MA4
MA5
MA6
MA7
MA8
MA9
MA10
V DD
Vss
MA11
MA12
MA13
MA14
MA15
MA16
MA17
MA18
MA19
MA20
MA21
MA22
MA23
9

MPX100 II
ICBLOCKDIAGRAM
•SN74HC138NSR(XD835A00)• SN74HC132NSR(XL112A00)• SN74HC00N(iR000050)
3to8 DemultiplexerQuad2 InputNANDQnad2 InputNAND
CIRCUITBOARDS
•HPCircuitBoard
HP1/2
MPX100 II
Notes)
CircuitboardHP(VT123600)XP822B0
1CarbonResistor
R2-5680 1/2J (VH696500)
2SemiconductiveCeraCap
C2-50 100025VZ (VC694800)
3CeramicCapacitor
C6100P50VJ (FG652100)
4Coil
L7-11FL5R200QNT20uH(VB835000)
L13-16SBT-0260TF60uH(VF968800)
5RotaryVariableResistor
VR1A100KX2RK0971210(VQ862900)Volume
6DINConnector
MIDIINOUTYKF51-50573P(VQ098700)MIDIIN,MIDIOUT
7PhoneConnetor
HP12 HLJ0521STEREO(VQ866600)Headphone
AUXIN,OUTHSJ0857ST-MINI(LB301870)AUX IN,AUXOUT
8BasePostConnector
CN4 PH-8PTE(VB390400)
CN5 XH-4PTE(LB918040)
CN6 PH-5PTE(VB390100)
CN7 PH-9PTE(VB390500)
•TC4053BF(XB738B00)• HLND12R35M(XM838A00)• NJM2403D(XG061A00)
Triple2-Ch.DC-DCConverter•µPC4570G2(XF291A00)
Multiplexer/DemultiplexerDualOperationalAmplifier
•MB3763(XQ061A00)
Bi-directionalMotorDriver
10
11

MPX100 II
MPX100 II
12
13
•MN Circuit Board
toMOTOR-XH6P
MN:BNA01-VT10900

MPX100 II
MPX100
II
•MNCircuitBoard
14
15
MN:BNA01-VT10900

MPX100 II
MPX100 II
•SENSORCircuitBoard
•MOTORCircuitBoard
SENSOR:VT18690
MOTOR:BNA01-VT10750
17
16

MPX100 II
MPX100 II
PK-CTL:VT18680
SUB-POWERSUPPLY:BNB01-VT10940
18
19
•PK-CTLCircuitBoard•SUB-POWERSUPPLYCircuitBoard

MPX100 II
MPX100 II
TESTMODE
20
21

MPX100 II
MIDI DATA FORMAT
<TransmittedData>
1.ChannelMessages
1.1NoteOn/Off($9n,$kk,$vv)
n(MIDIchannel)=$0to$F(0to15): channel1~16
kk(notenumber)=$00to$7F(0to127):C-2~G8
vv(velocity)=$00to$7F(0to127):0=noteoff
1.2ControlChange
Volume($Bn,$07,$vv)
n(MIDIchannel)=$0to$F(0to15):channel1~16
vv(data)=$00to$7F(0to127)
Sustainpedal($Bn,$40,$vv)
Switchmode
n (MIDI channel) =$0to $F(0 to15): channel 1~16
vv (data)=$00,$7F(0,127):channel1~16
Halfpedalmode(addthefollowingmessages)
n(MIDIchannel)=$2(2):channel3
vv(data)=$00to$7F(0to127)
Softpedal($Bn,$43,$vv)
Switchmode
n (MIDI channel) =$0to$F(0to15): channel 1~16
vv(data)=$00,$7F(0,127): 0=off,127=on
Halfpedalmode(addthefollowingmessages)
n(MIDIchannel)=$2(2): channel3
vv(data)=$00to$7F(0to127)
Sostenutopedal($Bn,$42,$vv)
n(MIDIchannel)=$0to$F(0to15) channel1~16
vv(data)=$00,$7F(0,127)0=off,127=on
1.3ProgramChange($Cn,$pp)-
SentonlyinMIDIsetupmode
n(MIDIchannel)=$0to$F(0to15): channel1~16
pp(programnumber)=$00to$7F(0to127)
2.ChannelModeMessages
2.1AllNoteOff($Bn,$7B,$00)
n(MIDIchannel)=$0to$F(0to15): channel1~16
2.2AllSoundOff($Bn,$78,$00)
n(MIDIchannel)=$0to$F(0to15): channel1~16
3.SystemInformation
3.1SystemCommonMessages
SongPositionPointer($F2,$II,$hh)-
WhenremoteOutison
ll (value) =$00to$7F(0to127)
hh(value)=$00to$7F(0to127)
SongSelect($F3,$ss)-
WhenremoteOutison
ss(songnumber)=$00to$7F(0to127)
3.2SystemRealTimeMessages
Timingclock($F8)- WhenremoteOutison
Start($FA)- WhenremoteOutison
Continuestart($FB)- WhenremoteOutison
Stop($FC)- WhenremoteOutison
Activesensing($FE)- Always transmitted.
Note:Whenpause,stop,orejectisselectedduringplayback,the
followingmessagesaretransmitted.
NoteOff($9n,$kk,$00)- Onlyfornotesthatareon
AllSoundOff($Bn,$78,$00)- Channel1~16
AllNotesOff($Bn,$7B,$00)- Channel1~16
PedalOff($Bn,$40,$00,$Bn,$43,$00)
3.3SystemExclusiveMessages
Mastertune($F0$43$10$27$30$00$00$dd$ee$cc
$F7)
dd(data)=$00to$0E(0to14)
ee(data)=$00to$0F(0to15)
cc=checksum
MIDImastervolume($F0$7F$7F$04$01$ll $mm$F7)
mm(data)=$00to$7F(0to127): MSB
ll (data): LSB
22

<ReceiveData>
1.ChannelVoiceMessage
1.1NoteOff($8n,$kk,$vv)
n(MIDIchannel)=$0to$F(0to15): channel1~16
kk(notenumber)=$15to$6C(21to108): A-1~C7
vv(velocity)=$00to$7F(0to127)
1.2NoteOn/Off($9n,$kk,$vv)
n(MIDIchannel)=$0to$F(0to15): channel1~16
kk(notenumber)=$15to$6C(21to108): A-1~C7
vv(velocity)=$00to$7F(0to127): 0=noteoff
1.3ControlChange
Sustainpedal($Bn,$40,$vv)
Switchmode
n(MIDIchannel)=$0to$F(0to15): channel1~16
vv(data)=$00to$3F,$40to$7F
(0to63,64to 127)
:0-63=off64~127=on
Halfpedalmode(addthefollowingmessages)
n(MIDIchannel)=$2(2): channel3
vv(data)=$00to$7F(0to127)
Softpedal($Bn,$43,$vv)
Switchmode
n(MIDIchannel)=$0to$F(0to15): channel1-16
vv(data)=$00to$3F,$40to$7F
(0to63,64to 127)
:0~63=off64~127=on
Halfpedalmode(addthefollowingmessages)
n(MIDIchannel)=$2(2): channel3
vv(data)=$00to$7F(0to127)
2.ChannelModeMessages
2.1AMNotesOff($Bn,$7B,$00)
n(MIDIchannel)=$0to$F(0to15): channel1~16
2.2AllSoundOff($Bn,$78,$00)
n(MIDIchannel)=$0to$F(0to15): channel1~16
3.SystemInformation
3.1SystemCommonMessages
SongPositionPointer($F2,$ll,$hh)-
WhenremoteInison
ll(value)=$00to$7F(0to127)
hh(value)=$00to$7F(0to127)
SongSelect($F3,$ss)-
WhenremoteInison
ss(songnumber)=$00to$7F(0to127)
3.2SystemRealTimeMessages
Start($FA)- WhenremoteInison
Continuestart($FB)- WhenremoteInison
Stop($FC)- WhenremoteInison
Activesensing($FE)-Alwaysreceived
23
MPX100 II

MPX100 II
YAMAHA[DISKLAVIERSILENTPIANO]Date:7-APR-1995
Model MPX100II MIDI IMPLEMENTATION CHART Version: 2.03
Function...
BasicDefault
ChannelChanged
Default
ModeMessages
Altered
Note
Number: Truevoice
VelocityNoteON
NoteOFF
AfterKey's
TouchCh's
PitchBend
64
67
7
Control120
Change
Prog
Change: True#
SystemExclusive
:SongPos
Common: SongSel
:Tune
System: Clock
RealTime: Commands
Aux:LocalON/OFF
:A11NotesOFF
Mes-:ActiveSense
sages:Reset
Transmitted
1-16
1-16
3
x
****************
0-127
****************
O 9nH,v=l-127
x9nH,v=0 *1
x
x *1
x *1
O
O
O
O
*1
O(0-127)
****************
O*1
O
O
x*2
O
O
*2
x
(123)
O
x
Recognized
1-16
1-16
3
x
x
21-108
21-108
Ov=l-127
O
x
x
x
O
O
x
O
x
x
O
O
x*2
x
O*2
x
O (123)
O
x
Remarks
Memorized
HP→ch1,3
SustainPedal
SoftPedal
Volume
AllSoundOff
NotesAllrecognizeddataaretransmitted500mseclater
ifcontrolpanelmodeisSTOPandDELAYOUTmodeison.
*l=PossibletotransmitalldataifE-SEQdiskisused.
*2=EnabledordisabledusingREMOTEfunctions.
Mode1:OMNION,POLYMode2:OMNION,MONOO:Yes
Mode3:OMNIOFF,POLYMode4:OMNIOFF,MONOx:No
24