Janome J30 - Page 23

21
CORRECT CONDITION
LCDdisplays“SC08--”.
STEP AND
ITEMS TO
CHECK
08)
FOOT
CONTROL
PROCEDURE
Attachthefootcontroltothe
machine.
Depressthefootcontrolasfaras
itgoes,thenreleaseit.
Iftheresultiscorrectcondition,
pressthestart/stopbuttonto
proceedthenextstep.
Iftheresultisdefectivecondition,
pressthereversestitchbuttonto
proceedthenextstep.
DEFECTIVE CONDITION
Thefootcontrolsymbol
doesnotappear.
Buzzerdoesnotsound.
–REMEDY–
Replacethefootcontrol.
Replacethemachine
socket(footcontrol
socket).
ReplacethecircuitboardA.
Shifttheslidevolumefromleftto
right,thenreturntotheleft.
Iftheresultiscorrectcondition,
pressthestart/stopbuttonto
proceedthenextstep.
Iftheresultisdefectivecondition,
pressthereversestitchbuttonto
proceedthenextstep.
09)
SLIDE
VOLUME
Presstheneedleup/downbutton.
Iftheresultiscorrectcondition,
pressthestart/stopbuttonto
proceedthenextstep.
Iftheresultisdefectivecondition,
pressthereversestitchbuttonto
proceedthenextstep.
Thefootcontrolsymbolappearswhen
thefootcontrolisattached.
Buzzersoundswhenthefootcontrolis
deeplydepressed.
Buzzersoundswhenthefootcontrolis
released.
LCDdisplays“SC09--”.
10)
DC MOTOR
Buzzersoundsatrightmostorleftmost
position.
LCDdisplays“SC10--”.
Buzzerdoesnotsound.
–REMEDY–
Replacetheslidevolume.
ReplacethecircuitboardA.
Themachinemotordoes
notstart.
Themotorstops
immediately.
Themotorrunsunstable.
–REMEDY–
ReplacetheDCmotor.
ReplacethecircuitboardA.
SELF-DIAGNOSTIC TEST
Machinerunsslow,thenfast,andthe
needlebarstopsatitshighestposition.
11)
THREAD
TENSION
RELEASE
SOLENOID
Footcontrol
symbol
Notapplicableforthismachine.
Pressthestart/stopbuttonto
proceedthenextstep.
LCDdisplays“SC11of”.
LCDdisplays“SC12--”.
12)
THREAD
CUTTER
MOTOR,
THREAD
CUTTER
SOLENOID
Notapplicableforthismachine.
Pressthestart/stopbuttonto
proceedthenextstep.