Technics SX-PC25 User manual

ORDERNO. EMID0007014C0

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

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

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.

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

6. PartsLocation

7. DisassemblyInstructions

7.1. Removing thetop coverand thekeyboardcover

[Fig. 1]

(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]

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]

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] ).

(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

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

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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