SME 15 - Operation - Turntable; Mains Power Control; Motor Power Control; Speed Testing Procedure

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12. OPERATION - TURNTABLE
TheModel15precisionturntableispartlyrun-inbeforeleavingthefactory
butwill benetandimprove aer afewweeksof use.Do notworryif
iniallythebearingisnottotallysilent.Aslight‘swish’barelyaudibleat
verycloserangeinasilentroomwillquicklydisappearaeruseofthe
turntable.Ifyoushouldwishtocheckthespeedsengsandmakeyour
ownadjustmentstheprocedureisasfollows:
1. Mains Power:thepowerON/OFFbuonislocatedontherearof
the power unit. With power ON the last used speed indicator LED
lightwillilluminateonthespeedcontrolunitfascia.
2. Motor Power: pressing the power buon on the speed control
unitfasciawillstart the motor. With powerOFF andpressing the
rotarybuononthefasciathespeedsengsof33
1
/
3
and 45rpm will
cycleandbeindicatedbythespeedLED.Withthemotorrunning,
pressingthepowerbuonwillstopthemotor.
3.   the stroboscopic disc installed on the plaer is
used to check speeds of 33
1
/
3
 and 45rpm. Use the strobe bands
appropriateforyourmainsACfrequency.Thediscshouldbeviewed
inauorescentorneonlight.Theappropriatebandwillsynchronise
and appear staonary when the speed is correct. Whilst forward
and reverse band movement will indicate fast or slow running
respecvely.Thisisbestobservedwiththecartridgeedandthe
tonearmin theraised posion and placed directlyoverthe band
beingviewedasareferencepoint.
4. Speed Adjustment: with the motor running press and hold the
rotarybuonfortwoseconds,thespeedindicatorLEDwillbegin
toash.Themotorisnowinspeedadjustmodeandthespeedcan
nowbeadjustedinconjunconwiththestroboscopicdisc.Turning
the rotary buon an-clockwise will reduce speed and clockwise
willincreasespeed.Themethodprovidesamicroneincremental
adjustment.Whenthespeedadjustmentiscompleteddepressand
release the rotary buon, the speed indicator LED light will stop
ashingandbecomeconstantandthespeedsengwillbestored
in the system memory for future use.
5. Repeatthisprocessforthe45rpmspeedrangeifrequired.