TêchnicsFrequency generator servoautomatic turntable system

MoDEL: SL-220Operating instructions

The model number of th is product may be found on the backof the uni t , and the ser ia l number, on the bottom of the uni t .Please note the model and ser ia l numbers of th is uni t in thespace provided and retain th is booklet as a permanent recordof your purchase to aid ident i f icat ion in the event of thef t .

MODEL NUMBER

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Matsushita Electric of Canada Limited40 Ronson Drive, Rexdale, Ontario, MgW185Telephone: (41 6) 248-5551Printed in JaoanS FN U222CO1F0478D1

SERIAL NUMBER

Before operating this set, please read these instructions completely

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We want to thank you f or select ing the SL-220.For opt imum performance, we recommend that you read these instruct ions caref u l ly .

Parts identification

45-rpm adaptor

H inge

Balance weight

Stylus-pressure r ing

Ant i -skat ing control knob

Arm clamp

Arm rest

Turntable plat ter

Turntable mat

Locking nut

Headshel l

Strobe- i l luminator/pi lot lamP

Strobe dots

Centre spindle Cueing knobPitch control knobs

Speedselectknob è Stop knob

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Before use Assembly and set-upSalelTechnics SL-220

Caut ion:Never connect the AC power plug before assembly hasbeen comoleted.Attach the dust cover last , so that assembly and adiust-ments can be made most convenient lv.

OChecklist of partsTurntableuni t . . .Turntable plat ter .Turntablemat. . . .Dust cover45-rpm adaptor.Balance weight .Headshel lOverhang gauge .

O Instal lat ion of the turntable platter1. Place the turntable plat ter on the centre spindle.2. At tach the bel t to the capstan using the r ibbon as shown

in the picture. (See Fig.2.)And then, remove the r ibbon.

3. Place the turntable mat on the platter.

"Warning: To prevent fire or shock hazard,

AC power plugGround wire (GND)

do not expose this appliance to rain or moisture."

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O Installation of the cartridge1. Connect the lead wires to the cartr idge terminals.

The terminals of most cartr idges are colour coded.Connect each lead wire to the terminal of the sameco tou r .White(L+) . . . . . . . . Lef tchannel(+)Blue(L-) . . . . Lef tchannel ( - )Red(R+) . Rightchânnel (+)Green (R-) . Right channel (-)

2. Instal l a cartr idge to the headshel l , and t ighten at wi thscrews provided with the cartr idge. (See Fig. 3.)

O Installation of the headshell/cartridge assembly(See Fig. 5.)Insert the headshell/cartridge assembly into the front endof the tubular arm, and turn the locking nut clockwise ( inthe direct ion shown by the arrow "A") , wi th the headshel l /cartr idge assembly f i rmly held hor izontal ly.

lnstal lat ion ot the balance weight(See Fig. 6.)

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Place the balance weight on the rear shaft of the tonearm

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Adjustment of overhang

1. Insert theheadshel l intothe gauge.(See Fig.4.)2. Loosen the mounting screws and move the cartr idge

forward or backward unt i l the sty lus t ip l ines up with theedge of the gauge.

3. ï ighten the screws without moving the cartr idge.Note:

. Your cartr idge is now adjusted for lowest trackingerror and minimum distort ion.

o This gauge is exclusively designed f or th is tonearm.

Screw

Cartr idge

Stylus t ip

52 mm (2-3164 \-

Adjustments of hor izontal zero ("0") balance andstylus pressure'1 . Remove the stylus protector, i f your cartr idge has a

detachable one. Be careful not to touch your f ingers tothe sty lus t ip.

2. Flelease the arm clamp and l i f t the tonearm f rom the armrest to free i t .

Note:. When you move the tonearm towards the centre

spindle, the turntable plat ter wi l l move sl ight ly, eveni f the speed select knob is at the " . " posi t ion, butthis movement is not s igni f icant.

. l f the tonearm pul ls toward the arm rest when thetonearm is held in a f ree state as shown in the picture(See Fig. 7) , rotate the turntable plat ter c lockwiseabout 10 t imes.This wi l l d isengage the automat ic mechanism from thetonearm gear, which in rare cases may have movedout of i ts normal posi t ion dur ing t ransportat ion.

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3. Turn the ent i re balance weight c lockwise ( indicated bythe arrow "A") or counterclockwise ( indicated by thearrow "8") unt i l the tonearm is approximately balancedhor izontal ly ( f loats f reely) . (See Figs. 7 and 8.)

Nole:. Dur ing the adjustment of the hor izontal "0 ' balance, be

careful that the sty lus t ip of the cartr idge does not contacithe turntable mat or turntable base.

After the tonearm is hor izontal ly "0" balanced, temporar i lyrefasten the tonearm with the arm clamD.

5. Hold the balance weight stat ionary wi th one hand, asshown in the picture, and rotate only the sty lus-pressurer ing to br ing the numeral "0" of the r ing into al ignmentwith the centre l ine of the tonearm rear shaft . The adiust-ment of the hor izontal "0" balance is now completed.(See Fig. 9.)

6. Af ter adjust ing the hor izontal "0" balance, turn thebalance weight c lockwise in the direct ion of the arrowand al ign to the correct sty lus pressure. (Fol low thecartr idge manufacturer 's recommendation.) (See Fig.10.)

As the sty lus-pressure r ing moves in step with thebalance weight, proper sty lus pressure can beselected by direct ly reading the graduated r ing.

Note:Set the sty lus pressure to the maximum recom-mended value for your cartr idge in cases where therecord has an extremely high recording level, orwhere the unit is ooerated in a room at low tem-perature,or in places in which the uni t is sublected tovibrat ions.

@Adjustment of the anti-skating controlSet the ant i -skat ing control knob to the same value as thesty lus pressure. (See Fig. 11.)

Note:. When a cartr idge with integral dust brush is used,

fol low the cartr idge manufacturer 's recommenda-t ion for adjust ing both sty lus pressure and ant i -skat ing force.

O Instal lat ion of the dust coverPlace the dust cover into posit ion from direct ly above,holding i t at both sides. For detaching the dust cover, becertain f irst to raise i t as i l lustrated before removal. (SeeFig. 12.)

Note:r Opening or c losing of thedustcoverdur ing playshould be

avoided. Th is may not on Iy cause u ndesi red v i brat i ons, butalso resul t in skipping of the sty lus.

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. l f you must open the dust cover dur ing play. do so as gent lyas oossible.

@ Placement1. Place the uni t in a stable and hor izontal posi l ion, where

there is l i t t le or no v ibrat ion.2. Locate the uni t as far away from the speakers as possible

and isolate the uni t f rom sound radiat ion f rom them.3. Do not place the uni t where i t is exposed to direct sun,

dust, moisture or heat.4. Keep i t in a well venti iated place.

9Connections1. Connecl theAC powerplug.

Connecl the AC power plug to an AC wal l socket ( 1 20V, AC).

2. Connect the output terminals.Output terminals Ampli f ier or ReceiverL$hite) -----+ If ChannelR(Red) "_.---...+ El ChannelGND (Spade lus) -------> GID

Note:Be sure to connect the ground terminal f i rmly to the am-pl i f ier or receiver. l f th is connect ion is not made or is loose,a powersource "HUM" wi l l resul t .

@ Release the arm clamp.

€) Set the cueing knob to the "V " posit ion. (See Fig. 14.)

@ Move lhe lonearm over the desired grooye.

O Set lhe cueing knob to posit ion. (See Fig. 15.)ïhe tonearm wil l descend slowlv onto the record andplay wi l l begin.

When play has l in ished, the lonearm wi l l automat ical lyreturn to the arm rest (auto-return) and the turntableplatter wi l l stop rotat ion,(The turntable plat ter wi l lcont inue to rotate br ief ly due toi ts own inert ia.)

Note:Atter play is completed, fasien the tonearm with the armclamp and set the speed select knob to the " . " posi-t ion.Attach the sty lus protector again, i f you have one, to pro-tect the sty lus t ip f rom damage.

When youcentr€ hole

play a 45-rpm record with a large

Place the 45-rpm adaptor on the centre spindle. Setthe speed select knob to the "45" posi t ion.

How to suspend playSet the cueing knobThe sty lus t ip of therecord.

I How to stop playSet the stop knob to the "stop" posi t ion. (See Fig. 16.)-he tonearm wi l l automat ical ly return to the arm rest andhe turntable wi l l s top rotat ing.

How to operate

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to the " I" posi t ion.cartr idge wi l l be l i f ted f rom the

(l Place a record on the turntable mat.

€) Set the speed select knob to the desired record speed.(See Fig. 13.)

G) Remove the stylus protector, if your cartridge has adetachable one.

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Notes and Maintenance

O Do not grasp or hold the lonearm durlng operationof lhe automatic-return mechanism.

O When you use other headshells, check the headshellconfiguration for compatibi l i ty. (See Fig. 17.)When other types of headshel ls are employed, thehandle port ion of the headshel l may str ike against theinner, upper surface of the dust cover dur ing auto-mat ic mot ion of the tonearm. In such case, we recom-mend the dust cover be lef t open dur ing play.

I Before detaching or at laching the headshell , be sure tolurn the power of the ampli f ier or receiver off .Noise produced by detaching or at taching of the head-shel l , wi th the volume control turned up, may' causedamage to the speakers.

@ When play is f inished, be sure to secure lhe tonearmwith the arm clamp.After play is f inished, i f the unit is not to be used forsome t ime, care should be taken to secure the tonearmto protect the sty lus t ip.For the same reason, the sty lus protector should alsobe attached.

€' Wipe the headshell terminals f rom l ime to t ime.Dust and dirt at the headshell terminals may result inincreased "HUM" noise or intermittent sound. Use a softdry cloth to clean the headshell terminals.

@ Wipe the dust cover and lurntable base with a soft, drycloth.o Never use any cleaners containing alcohol, benzine

or th inner.. Use of a chemical ly t reated dust c loth should also

be avoided. Be sure that the dust cover is not ex-posed to insecl ic ide sPraY.

. To remove stubborn f inger prints or grease spots'detach the dust cover and disconnect the AC powerplug.Use a sol t c loth s l ight ly moistened with a mi ld soapand water solut ion.

o Do not wipe the dust cover during play, or thetonearm may be attracted toward the dust cover dueto the generation of stat ic electr ici ty.

O Dust and dirt should be careful ly removed f rom stylus t ipor records.Dust and dirt on stylus t ip or record may not only resultin dèteriorat ion of tone quali ty, but cause undue wear ofthe record and the sty lus t ip i tsel f .Special stylus t ip brushes and record cleaners can bepurclased in most electronic supply houses.

@ How to remoye and instal l the turntable plalter (See Fig.18.)The bel t is connected to the capstan and the inner dr iver im of the turntable plat ter .Before removing the turntable platter, .release the beltfrom the capstan.When reinstal l ing the turntable plat ter , lower i t over theturntable shatt and then put the bel t onto the capstan.

Nole:o Be carefu noT to let ot l or grease contact the bel t .

l f grease rnacvertent ly contacts the bel t , d isconnect theAC power cord Tirst and wipe the bel t c lean wrth alcohol .

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AdjustmentsOAdjustmenl of arm-l i f t height

(See Figs. 19 and 20.)r The arm-l i f t height distance between the sty lus t ip and

record surface when cueing knob is at "v" has beenadjusted at the factory before shipping to approxi-mately 5 to 10 mm.

r For using di f ferent cartr idges avai lable on the marketor when lur ther adjustments are part icular ly necessary,make ad. lustment as fo l lows:

1. Put on the sty lus protector to protect the sty lus t ip f romdamage.

2. Set the speed select knob to the " o " posi t ion toprevent the turntable plat ter f rom rotat ion.

3. Move the tonearm towards the centre spindle.4. Turn the adjustment screw clockwise or counterclock-

wise, whi le pushing the arm l i f t down. (See Fig.20.)

Clockwise rotal ion- distance between the record and stylus t ip is re-

o uceo.Counterclockwise rolal ion- distance between the record and sty lus t ip is in-

creased.

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Note:. As the adJustrng screw nas a hexagonal head, be sure to

make the adJUstment whr le depressing the arm l i f t , or thescrew wrl l not move f reely Also be sure that the hexagonalhead retracts correct ly rnto the arrn l i f t when lhe lat ter isreleaseo.

@Speed adjustment (with pi tch control knobs)(See Fig. 21.)Strobe dots are set on the r im of the turntable plat teraccording to the power-t ime frequency and the number ofrevolut ions of the records. Make adlustmenl, referr ing tostrobe-dot indicat ion. (See Fig.2 1.)

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Place a record on the turntable mat.Set the speed select knob to the speed to be adjusted.Adjust the speed whi le playing a record.The strobe- i l luminator/pi lot lamp wi l l be l i t lor i l luminat ingthe strobe dots.Whi ie turning the pi tch control knobs ei ther to "*" s ide or"-" s ide, adjust so that the strobe dots oi the turntableplatter look as i f they were stat ionary. The state underwhich the strobe dots seem to be stat ionary represents thecorrect number of revolutrons.

" + " direct ionÏhis increases the speed of the iurntable rotat ion, andthe strobe dot pattern seems to f low in the samedirect ion as the rotat ional d i rect ion of the turntable0latter."-" direct ionThis decrease the speed of the turntable rotat ion,resul t ing in a state opposi te to that in the " + " d i rect ion.Note:Strobe dot patlernThe strobe- i l luminator/pi lot lamp of th is uni t employs thecommercial ly avai lable power source. The frequency oTsuch power source, when actual ly measured, has a f luctu-at ion of about 2010. As such a f luctuat ion of the powersou rce al fects the strobe i | | um i nator, the strobe dot patternalso seems to f luctuate lo a certain extent.But the uni l is not af fected bV these f luctuat ions of thepower source, s ince a DC motor is employed. In otherwords, rotat ion of the plat ler wi l l be constanl , and sl ightshi f ts in the movement of the dots s imply ref lect normaldr i f t in the power-source frequency.

@ Adjustment for automatic(See Fig. 22.)(Remove the turntable mat,)In cases where the tonearmplaying has f in ished.-Rotate clockwise.ln cases where the tonearm fai ls to return af ter the lastgroove of the record.-Rolate counterclockwise.

return position

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45 rpm33'/: rpm 50Hz

60Hz

Strobe dotsThe strobe dots for 60 Hz.??j,1, rnm aôôm lô ha

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Strobe- i l luminator/pi lot lamp

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Features Specif icationsO New Type Frequency Generator Servo Control

One of the major secrets behind the razor-sharp accuracyand superb quali ty of sound l ies in the new type (FrequencyGenerator) servo controlled DC motor, and greatly improvedhighly rel iable lC circuitry. Even the sl ightest hint of speedchange and dri f t is corrected immediately.

@ Electronic Speed SwitchingEven though this turntable is belt-driven, gone is the oldconventional pul ley type speed changing mechanism.Speed switching in this unit is ful ly electronic, therebyadding to the high degree o'f mechanical precision andrel iabi l i ty.

g All Front-Panel ControlsThe advancement to complete front-panel control marks abig step forward in turntable operation, not only because ofthe greater convenience, but also because of the greaterprotection from dust, as the dust cover can stay closed.

@ Tonearm Cueing Gonlrolled f rom Front PanelThe tonearm is raised and lowered soft ly by a viscous-damped cueing l i f ter. Even with the dust cover closed, acueing can be easi ly performed as the control is located onthe f ront panel.

O Automatic Tonearm ReturnFor greater operat ional convenience, the tonearm returnsto the arm rest automat ical ly.

@ Xignly Sensitive Gimbal Suspension SystemWith the high-precis ion pivot bear ings employed for thehorizontal and vert ical iournals of the tonearm, in concertwi th the adopt ion of the gimbal suspension system, ahigh-sensit ivi ty arm of less than 7 mg fr ict ion has been

' attained, thus making i t possible to f ul ly real ize the perfor-mance of h igh-compl iance cartr idges.

O Independent Pilch ControlsPermits record speed (at both 33'/. and 45 rpm) to bevaried by up to 60/0.

@ Precision Strobe llluminator/Pilot LampWith the bui l t- in strobe-i l luminator/pi lot lamp, accuratespeed adjustments can be made rapidly and easi ly.

@ Anti-skating Force MechanismThe well-designed anti-skating force mechanism ensuresminimum side thrust with dif ferent cartr idges andguarantees accurate center-of-the-g roove tracking.

@Detachable Dust Gover

Turntable sectionType:

Drlve method:Motor:

Turntable platter:Turntable speeds:Pltch conlrols:

Wow and llutter:

Rumble:

Tonearm sectionType:

Effectlve length:Overhang:Frlctlon:

Etfective mass:Tracklng error angle:

Frequency generator servo automaticturntable system(auto-return, auto-stop)

Belt driveFrequency Generator ServoDC motorAluminum die-cast, 30.4 cm (12")33-1/3 and 45 rpmIndividual adjustment controls,60/o adjustment range0.0450/o WRMS (JlS C5521)+0.060/o peak ( lEC 98A Weighted)-70 dB (lEC 98A Weighted)

Universal tubular arm, stat ic-balanced type23cm (9-1/16")1.s cm (19/32")Within 7 mg (hor izontal ly andvert ical ly)13 g (wi thout cartr idge)Within 2'32' (at the outer grooveof 30 cm (12") record)Within 0'32' (at the inner groove of30 cm (12") record22"

0 to 3 g (stylus pressure directreading type)5.5 to 8.5 g14.5 to 17.5 g ( including head-shel l )9g

Offset angle:Adlustable stylus

pressure range:

Cartridge weight range:

Headshell welght:

GeneralPower supply:Power consumptlon:Dlmenslonc

(H xwx D)Welght:

Weight and dimensionSpeciTicat ions subJect

120V AC, 60 Hz3W12.6 x 43.0 x 37.5 cm(4-31/32" x 16-59/64" x14-49/64")4.5 kg (9.9 lb.)

shown are approximate.to change without not ice

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