Technics SX-PC25 User manual

ORDERNO. EMID0007014C0
A5
Digital Piano
SX-PC25
Colour
(K)...................Black
Areas
(P)U.S.A. Mexico
(PC)Canada
(EX)Norway, Sweden, Denmark, Finland, Spain, Portugal, Greece,
SouthAfrica
(EZ)Germany
(EG)Switzerland, France, Italy, Austria, Netherlands, Belgium
(EB)theUnitedKingdom
(XA)Argentina
(XD)Hong Kong, Saudi Arabia, Kuwait
(XT)Taiwan
(XS)Malaysia, Singapore
(X)Thailand, Indnesia, Iran, U.A.E., Panama, Brasil, Philippines,
Venezuela, Ecuador, Colombia, Chile, Peru
(GN)Australia, New Zealand
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SPECIFICATIONS
SPECIFICATIONS
KEYBOARD 88 KEYS(WITHTOUCH
RESPONSE)
SOUND GENERATOR PCM
MAX. POLYPHONY 32 NOTES (16 STEREONOTES)
SOUND GRAND, UPRIGHT, EPIANO,
HARPSI, STRINGS, PIPEORGAN
PEDAL SOFT, SUSTAIN
DIGITAL REVERB O
FUNCTIONS VOLUME, DEMO, TUNING,
TRANSPOSE, TOUCH
SENSITIVITY, REVERB, BASIC
CHANNEL, LOCAL CONTROL
TERMINALS PHONES ×2, MIDI (IN, OUT),
AUXIN(R, L)
OUTPUT 15W ×2
SPEAKERS 12cm×2
POWERSUPPLY 75W / 50W (NORTHAMERICA
AND MEXICO)/ 70W (CANADA,
EUROPE, AUSTRALIAAND
NEW ZEALAND)
POWERCONSUMPTION AC120/ 220/ 230-240V50/ 60Hz
AC120V60Hz(NORTH
AMERICAAND MEXICO)
AC230-240V50/ 60Hz(EUROPE,
AUSTRALIA, AND NEW
ZEALAND)
DIMENSIONES (W×H×D) 138.7cm×98.3cm×43.5cm
(54-19/32”×38-11/16”×17-1/8”)
NETWEIGHT 39kg (86lbs)
ACCESSORIES ACCORD, MUSICSTAND
1. WARNING
Topreventtherisk offire, smoke, or electrical shock and toensuresafeoperation, please be
suretofollowthesafetyguidelines below.
1. Atplaces wherespecial caution isrequired, thenecessarysafety
precautionsareclearlylabeledorprinted, forexample, on the
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cabinet, oron thepartconcerned. Please follow these safety
precautions, and alsothose listedintheOwner'sManual.
2. Parts whichhavea;markinthecircuitdiagramorintheparts
list areessential forsafety. Whenreplacing these parts, besureto
useonlythespecifiedparts.
3. Use thespecifiedtypes forinternal wiring (double-insulated
wiring, etc.).
4. Whenreplacing parts on theACprimaryside(powertransformer,
electricswitch, electrical cord, noise-prevention condenser, etc.),
wind theleadwireand secureitbysoldering.
5. Donotlet thewiring comeintocontact withheat-emitting devices
(fuse resistor, radiatorplate, etc.).
6. Whenreplacing thewiring, make surethat itisnotincontact with
theunfinishedorrough edgeofapart.
7. Whenreplacing thepowercord(exceptfortheplug-intype), tug it
fromvariousdirectionstoconfirm that itdoes notslipoutofplace.
8. Spacing
Ifsoldering was doneon theACprimarycircuit, confirm that the
interval betweenthesolderedterminalsorbetweentheterminal
and surrounding metallicparts isat least theminimumrequired
(betweentheprimarycircuitand thechassis:atleast 6.5mm;
betweenprimarycircuitterminals:at least 4.0mm;between
primarycircuitterminalsand secondarycircuitterminals:at least
6.5mm.).
2. SAFETYPRECAUTION
2.1. SafetyPrecaution
1. Beforeservicing, unplug thepowercordtopreventanelectric
shock.
2. Whenreplacing parts, use onlythemanufacturer’srecommended
components forsafety.
3. Check thecondition ofthepowercord. Replace ifwearordamage
isevident.
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4. Afterservicing, besuretorestoretheleaddress, insulation
barriers, insulation papers, shields, etc.
5. Beforereturning theservicedequipmenttothecustomer, besure
tomake thefollowing insulation resistance test topreventthe
customerfrombeing exposedtoashock hazard.
2.2. Insulation Resistance Test
1. Unplug thepowercordand shorttheprongsoftheplug witha
jumperwire.
2. Turnon thepowerswitch.
3. Measuretheresistance valuewithanohmmeterbetweenthe
jumperedACplug and eachexposedmetal cabinet part, suchas
screw heads, connectors, control shafts, handlebrackets, etc.
Measurements shouldrangefrom4MOhmtoinfinityfor
allexposedparts.
Figure-1
3. HowtoAssemblethe Piano
4. Operation Manual
5. KeyboardRanges and MIDI NoteNumber
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6. PartsLocation
7. DisassemblyInstructions
7.1. Removing thetop coverand thekeyboardcover
[Fig. 1]
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(Step2)
Remove thetop coverinthedirection ofarrows(referto [Fig. 1] ).
(Step3)
Remove thekeyboard coverinthedirection ofarrow(referto [Fig. 1] ).
7.2. Removing thekeyboardassembly
-Follow theitem7.1. [Fig. 2]
7.3. Disassemblyand assemblyofkey(s)
-Follow theitem7.1.
-Follow theitem7.2.
7.3.1. Disassembly
(Step1)
Insertthethinsolidboard betweenwhitekey and black key, pushtheclaw(referto [Fig. 3] ).
(Step2)
Whilepressing slightlythefrontofthekey, pushtherearofthekey forward todisengagethekey
clawfrom thechassis(referto [Fig. 3] ).
(Step3)
Lift thekey and remove it.
[Fig. 3]
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7.3.2. Assembly
(Step1)
Insertthefrontpartofthekey intothechassis.
(Step2)
Inserttheplatespring intothehammernotch(referto [Fig. 4] ).
(Step3)
Whileslowlylowering thekey intothechassis, inserttheplatespring intothenotchattherearof
thekey (referto [Fig. 4] ).
(Step4)
Carefullyinsertthekey intotheopening inthechassisand slidethekey towardsthereartolock
itinplace (referto [Fig. 4] ).
[Fig. 4]
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7.4. Disassemblyofthepedal assembly
(Step1)
Remove thepedal assemblyfrom thepedal box.
(Step2)
Disassemblethepedal assembly(referto [Fig. 5] )
[Fig. 5]
7.5. Removing theprintedcircuitboards
-Follow theitem7.1.
-Pull outtheconnectorson theprintedcircuitboards.
-ACPP.C.B.
(Step1)
Remove the2screws (referto [Fig. 6] ).
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(Step2)
Remove thescrew (referto [Fig. 6] ).
-MAINP.C.B.
(Step1)
Remove thescrew (referto [Fig. 6] ).
(Step2)
Release theclawsofthe5P.C.B. holders.
-HPVOLP.C.B.
(Step1)
Remove the2screws (referto [Fig. 6] ).
(Step2)
Remove thevolumeknob.
(Step3)
Remove thenut ×1and ×2(referto [Fig. 6] ).
[Fig. 6]
8. SymptomsWhich Appeartobe Signs of Trouble
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Thefollowing changes inperformance may occur intheTechnics Digital Ensemblebutdo not
indicatetrouble.
Phenomenon Remedy
Nosound isproducedwhenthekeyboard is
played. Nosound isproducediftheMAINVOLUME is
set
Use thesliding control tosetthevolumetoan
appropriate
level.
IftheMIDILOCALCONTROLissettooff, setit
toon.
Nothing isshownon thedisplay. Themetronome, SEQUENCERtempo, etc. are
indicated
thedisplay. During normal performance,
however,
display isoff.
Datacannotbeexchangedthrough MIDI
terminals. Theswitchfor theCOMPUTERterminal isnot
set
Turn off thepowertothisinstrumentand set
the
MIDI.
Matchthechannelson thetransmitting sideand
the
receiving side.
Thesound quaversor isdistorted. WhentheCOMPUTERterminal or boththeMIDI
IN
terminalsareconnectedtoacomputer,
depending
computersoftwarethereceiveddatamay be
sent
theinstrumentjustas itis. Because ofthisthe
sound
generatedfrom thekeys and thesound
generated
returneddataarebothproduced, causing
undesirable
effects, suchas thesoundscanceling each
other
example. Inthiscase, eitherchange
thesoftware
topreventreceiveddatafrom being returned, or
set
MIDILOCALCONTROLtooff.
Aboutthebackup memory
Theselectedsound and variousfunctions, MIDIsettingsand SEQUENCERcontentsremaininthe
memoryfor aboutoneweek afterthePOWERisturnedoff.
-Thebackup memorywill notfunction until thePOWERhas beenon
forabout10minutes.
-Ifyou wishtoreturnall memories and settingstotheirinitialized
status, whilepressing theMODESETbutton, press theINITIALkey
on thekeyboard. Oryou canturnon thePOWERwhilepressing
theINITIALkey.
-WhenthePOWERisturnedon, theMIDI LOCALCONTROLisset to
on.
9. MIDI Imprementation Chart
10. PRECAUTIONS BEFORE SERVICING
10.1. Precautionsformeasuring oftheoutputwaveforms
1. Thewaveform was measuredwitha“National Digital Storage
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