Technics QUART Z User manual

Technics
QUARTZ DirectDriveTurntable
SP-25
Operating instructions
English r 3-b
Deulsch e-9
Francala 10-13
Esparto! 14-17
Nfldorurcs16-21
Sv»ft»ka22-24
DansK 25-28
de'oreoperatingrhijset.piea*#theseinstruction*completely

Parts identification
Center spinole fMotor sfratti
©Turntablemal
OW-nnunitfixing screw hole
Mamunitfixing screw nolo
Main unitfixing screw nolo Main unitfixing
screw hole
©Turntableplatter
<D Damping
material
0Stroboscope
iPitchcontrolknob
1
Speed seiec: buttons
Beforeuse
(Optional)
Technics
Turntab*© base SM-15B2

Assembly andset-up
AC powercord
te Ground wire(GND)
Connections
AC tme»voJtageselector
Howtooperate
8 L
Notesandmaintenance
13

Wewantlothankyou(or selecting the SP-25.
For optimumperformance,werecommendthat you readtheseinstructionscarefully.
Beforeuse
Caution:
•Never connect theACpower plug before assembly has
beencompleted
•Attachthedustcoverlast,sothatassemblyand
adjustments canbemade most conveniently.
•Checklistofparts
Turntableunit1
Turntableplaner4 1
Turntablemal1
4$-rpmadaptor1
Main unit fixing screw 4
Ground wire(GND) 1
Installationdiagram1
•Installationofthegroundwire(GND)tothe
GNDterminal. (See Fig. 2.)
•Buildingyourownbaseorcabinetforthis
model
witha targestartingtorqueof1,5legem(lo-in)has
thesuperiorfeatureofreachingconstantspeedin0.7
second (at33-1/3rpm.).
For thisreasonwerecommendthatyouusedurableand
heavy material
The thickness ofthebase should bemoreman3 cm (i -11 /
64inch).
Aiso use durableandstablemuiators(lega).
Werecommendthatyoupurchasetheoptionalturntable
base Technics SH-15B2. designedexclusivelyfortheSP-
25. (See Fig. 3.)
•Drillandcutoutthebaseaccordingtothe
Installationdiagram
The installationdiagram is drawnini/iactual size
As paperhasa tendencytostretchwesuggestthatyou
check thediagrambefore using itasa tempiale. Check the
tonearmmountingpositionforproperalignment(followthe
lonearmmanufacturer's specifications)•
Also makesuretoallowsufficientclearanceforpower
connector andoutputterminalsofthetonearm*
Caution forsafeuseofthis
apparatus[FORUKONLY]
Caution
e This apparatus isdouble insulated, safely earthnotrequired.
Important
eThe wiresinthlamainaleadarecolouredInaccordance
withthefollowingcode:
Blue; Neutral
Brown: Live
As the colours ofthewiresinthe mams lead ofthisapparatus
maynotcorrespondwiththecolouredmarkingsidentifying
theterminalsInyourplug,proceedasfollows.
The wirewhichIscoloured BLUE mustbeconnectedtothe
terminal which is markedwith the letterNor coloured BLACK.
The wire which is colouredBROWN must be connected tothe
terminalwhichismarkedwiththeletterL or coloured RED
This equipmentshouldbedisconnectedfromthemains
whennotinuse.
Assembly andset-up
Caution; Takecarenottodamagethepower
supply cordandbushingwhensettingupor
installingtheturntableintoasupporting enclosure.
Assembling is explainedbasedontheoptionalTochmcs
turntaWeba se SH-15B2 for reference meases wheretheunitis
installed inanothercabinet,
SH*15B2 isprovidedwith screw holes(4 places) formounting
SP-25.
1 Install SP-25, withthe screw holes -n.gnec(See Fig. 4.)
2. Secureh/ holdat4 places bythe screws suppliedwithSH-
1582.(See Fig. 5.)
3. Pull outthepowercordandground wire (GND)fromunoe'
theturntable base.
4Aftertheabove,installtheturntableplatterandturntable
mat.
Connections
•ACline-voltageselector<see Fig. e.)
Caution:
Makesurethattheturntable'sACime-voitageselectoris
matchedtoyourlocalvoltagebeforeconnectingtheAC
powerplug,Never connect to a DCsocket.
Ifthepre-seiectedvoltage*sdifferentfromyourlocal
voltageturnthe AC fine-voltage selector witha screwdriver
so thatit corresponds toyour locar voltage, (See Fig. 6)
The ACime*vottageselectorislocatedundertheturntable
platter.
•ConnecttheACpowerplug.
Connect the AC power pJug toanAC waH socket.
•Connecttheoutputterminals.
Note:
e&esuretoconnectthegroundterminalfirmlytothe
amplifierorreceiver. Jf thisconnectionis notmadeoris
loose, a power source "HUM**willresult.
Placement
•Placetheunit In a stableandhorizontalposition,where
therela little ornovibration.
•Locatetheunitasfarawayfromthespeakersaa
possible andIsolatetheunitfromsoundradiationfrom
them.
•DonotplacetheunitwhereItlaexposedtodirectsun.
dust, molatureorheat.
•KeepItIna wellventilatedplace.
•Whena radiolaplacedtoo close totheturntableandIs
playedwhiletheturntableIsInoperation,interference
toAM/FMreceptionmayresult.

1
* 4
Howtooperate
1. SOT thtpower switch tothe"on"position.(See Fig. 7,)
The revolutionsareindicatedat33 (33*1/3 rpm.)ofthe
ipeedselectbutton. (SHFig. 8)
Uponsettingthepower switch to"on",therevolutionsare
changed overto33-1/3rpm.at all times.
Jf therecordtobeplayedIsotherthana 33-1/3 rpm..
depress the speed select button to sort thephono disc to be
played.
2. Place a record on theturntablemar
Push mestart-stop button (See Fig. 9.)
The turntableplatterwillbeginto rotate andreachits
constant rotation speed within 0.7sec.(33-1 /3rpm.).
3. Uponcompletionofplaying, depress thestartistopbutton.
The turntableisInstantlystoppedbyelectronicbrake
system.
After that, setthepower switch to"off" (SeeFig. 10.)
• Pitch control
(turntable speed fineadjustment).
The turntablespeedofthisunitcanbefine-adjustedabout
±6% range. With thepitchcontrolknobat"0".Itis setto
normalspeed (33-1/3 or45rpm),andthestrobemarks
appeartobestill.
Nota:
The number(1-6) prtnted onthepitchcontro*knob shows
ma speed variation(%)approximately,
direction
The speedoftheturntableplatterwiUincrease Turnthe
knobinthisdirectionrfthestrobedotsseemtobe"falling
back" i e seemtobemoving counterclockwise. Whenthe
dotsappeartobestationary,turntable speed is accurate,
"-'•direction
The spaedofthaturntableplatterwill decrease. Turnthe
knobinthisdirectionifthedotsseemtobe"running
ahead" i.e. seem tobemoving clockwise, untiltheyappear
stationary.
Note:
For thestrobe-iiUmmahonolmisunit,a quartzcontrolied
precise strooe-IUuminatOf with redLEOilluminationts
employedItis essentialtocarryoutturntablespeedfine
adjustmentunder the illuminationof misLED light emission.
Since synchronizationIsnotpossible with fluorescent
lamps, useofa fluorescentlamp makes the strobe markings
look as thoughtheyareflowing. Likewise adjustment cannot
bemade with an incandescent lamp.(See Fig. 11 )
Notesandmaintenance
• Beeitremelycarefulabouthandlingtheturntable
platter.(See Fig. 12.)
The magnetisattachedtothe inner reverse surface ofthe
turntableplatter.
For handling,extracareshouidbetakentoprevent
adhesion ofdustorironMingstomemagnet,andnotto
damageth*magnetbyaccidentallydroppingIt from a high
poeMon.
Donotdetachtheturntableplattermore than necessary.
Should theturntableplatterberemovedbynecessitybe
sure tofirst disconnect thepowerplug.
Keep your hands offthe screws atthe reverse surface ofthe
turntableplatterandmotorportion.
Should these screws be loosened, theratedperformanceof
theunit can notbeguaranteed.
• Wipetheunit wrth a aott. drycloth.
Neveruseanycleanerscontainingalcohol,benzeneor
thinner. Use of a chemical dust cloth should also be avoided
m Lubrication
Apply2 or3 dropsofoilonceafterevery2000hoursof
operation.(See Fig. 13.)
This time intervalis muchlongerthanmatofconventional
type motors (200—500 hours).
Please purchaseoriginaibrandofoil(Partsnumberis
SFWO010) •
For longerand safer use
ofthisunit
In orderto'ecervethebest service from misunit,andforthe
safest operation,carefullyreadthefollowinginformation.
• Power source.
Itlaverydangeroustousethis untt at a voltage which la
different from theratedvoltage.
There is dangerofcombustk>niftheunitis connectedtoa
power source which isdifferent from theratedvoltage
Be very careful concerrmg thispoint.
Directcurrentcannotbe used.
There aresome places, auch as ships, where direct current
rs usedasmepower source. Beforeconnectingtheunrt.
confirmthepower source.
• Connectionofpower cord.
Wethandaare dangerous.
Be suretonevertouchthepowercord with wethands
because thereisdangerofelectricshockThtsis true,of
course, ofall electric equ-pment
Donotpullthepowercord.
Neverpullmepowercordto 6sconnect it. Always puithe
plugonly
• Locationofunit.
Choose a place which is not in directsunlight.
Select a place which will assure goodventilation
• Neverplaceheatingequipmentneerby.
Be sure tokeep stoves andother sources ofheataway from
this unitbecauseheatradiatedby such eQu^pm^tmay
cause deformationofplasticpiartsordamagethecabinet,
or,at worst, cause a fire.
• Especially forfamilies with children. *
Take care that no small Items, auch as metal objects, are
put Inside thisunit.
Inaddition,children should be especially warnednoitoput
anythingintotheventilationholes, such astoysora
screwdnver becausethesethingsmay cause aneiectnc
Shock Or result m a matfurxtton oftheunit.
• Ifwaterapillsontheunit.
Ifwatershouldhappenlospiliontheunrt, from an
overturned vase forexample,thereis dangerof fire or
electric shock. Disconnect thepowerplug from theelectric
outletimmediately, and contact the store from which me unit
was purchased
-4-

Reconstruction can cauM accidents.
Absolutely nevertrytoremodel,reconstructorrepairthis
unityourself.Donot attempt totouchanyinternalparts
because todosomayresultinanelectricshockorother
accident.
Be surethepowerIsoff.
Afteryouhavefinished using thisunit,checkoncemoreto
besure that thepower is off.ittheunitis left with thepower
onfor a long periodoftime,itmaynotonlybe damaged, thus
shorteningitsusefullife,butmayateoleadtoadangerous
accident.
Features
Oversized turntablethat cuts oft and absorbs
external vibrations
Rased on analysis oftheturntablevibrationmodesand
vibrationsinthesoundrange,a specialviscoelasttc
materialisappliedtothereversesurfaceoftheturntable
platterfordeadening.
The deadeningmaterialIsappliedtotheundorsurfaceand
outerperipheryoftheturntableplatter, with therubber
turntablematonthesurfacesettledintotheturntable
platter.Thisdesignis supenorin acoustic characteristics
even athighsoundlevelsthrougheliminationofturntable
resonance and absorption ofexternalvibration.
Moreover,theoversizedaluminumdie-castturntable
platter.33.9cm (13-11/32") indiameter,tsheavy with a
momentofinertiaof250kgcm*(85lbin*)forlargeheavy
weight1.85kg(4ib) class design.
Vibrationdamping structure bythe precision
aluminum die-cast cabinetandTNRC
The acoustical characteristics oftheplayer system arein-
evitablyaffectedbytheturntableplatterandcabinet
employed.The SP-25 adoptsanaluminum die-cast cabinet
superior instrength, with highprocessingaccuracy.
Throughcutting-offandabsorptionofexternalvibrations,
theunitisdesignedforimproved acoustic characteristics,
with susceptibilitytofeedbackminimized.
| Specifications
General
Power supply:
Power consumption:
01 mansion a:
(WxHxD)
Weight:
Turntable section-
Typa:
Drivemethod:
Motor:
Drivecontrolmethod:
Turntableplatter:
-MO-120/220-240 V,
SO or 60Hz
11 W
34.9x8.5x37.2 cm
(13-3/4*3-1/64x14*41/64
inches)
4.8kg(10.6ib)
Quartzdirectdrive
DirectDrive
Brushless DCmotor
Quartz-phase-locked control
Aluminum die-cast, diameter
33.9 cm (13-11/32 inches)
weight1.85 kg (410)
250kgcm*(85lbIn*)
33-1/3 rpm and45rpm
±6%adjustmentrange
l.5kgcm(l.31 tb-in)
0.7 s. from standstill
Electrical braking
0%within1.0 kg cm(at a stylus
pressure of200g)
Within ±0.002%
(33-1/3,45rpm)
0.01% WRMS"
0.025%WRMS (JIS C5521)
±0.035%peak(IEC98A
Weighted)
'This ratingreferstoturntableassemblyatone,excluding
effectsofrecord,cartridgeortonearm,butincludingplatter.
Measuredbyobtainingsignal from built-infrequency
generatorolmotor assembly.
Moment ofinertia:
Turntable speeds:
Turntable speed
fineadjustment:
Startingtorque:
Build-up timer:
Braking system:
Speed fluctuation
duetoloadtorque:
Speed drift:
Wowand flutter:
Rumble: -
56 dB (JEC 98AUnweighted)
- 78d8 (IEC 98AWeighted)
• Quartz Controlled Rotation Accuracy
The SP-25 utilizestheoscillationofa quartzcrystalasa
reference signal or source. This oscillation is notaffected by
temperaturechangeorpowerfluctuations.By synchro*
nizingtherotationoftheturntablepiatteraccuratelytothe
referencesignal,speed drift oftheunitis held wtthtn
±0.002% (33-1/3rpm.).
• Technics* uniquemotorconstructionin
which therotorotthemotorisIntegrally
formedwiththeturntable
Weightanddimension shown areapproximate.
Specifications subject to change without notice.
• Hightorquemotorot1.5kgcmwithstarting
timeof0.7 second is capable ofinstant speed
change-over (at 33-1 /3rpm.)
• Stableandpositivemechanismthatcan
stand frequentusefor business use, etc. and
a switch section withpoint contacts
• Electronic brake