19
correct condition
Step and
itemS to
check
05)
preSSer
foot lifter
Switch
procedUre
defective condition
tUrn the handwheel toward
yoU.
lower the needle bar from
itS higheSt to itS loweSt
poSition.
raiSe the needle bar from
itS loweSt poSition to itS
higheSt poSition.
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.
bUzzer doeS not SoUnd.
Stitch width or length Sym-
bol doeS not appear.
–Remedy–
replace the circUit board a.
replace the circUit board p.
zigzag motor doeS not get
defaUlt poSition.
bUzzer doeS not SoUnd.
–Remedy–
replace the zigzag motor.
replace the circUit board a.
feed motor doeS not get
defaUlt poSition.
bUzzer doeS not SoUnd.
–Remedy–
replace the feed motor.
replace the circUit board a.
06)
Upper
Shaft
poSitioning
SenSor
07)
zigzag
motor
(Step
motor)
and
feed
motor
tUrn the handwheel toward
yoU.
lower the needle bar itS
higheSt to poSition (zigzag
phaSe)
.
preSS the needle Up/down
bUtton.
raiSe the needle bar from
itS loweSt poSition to itS
higheSt poSition (feed phaSe).
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.
lcd diSplayS “06”.
tUrn the handwheel.
lcd diSplayS Stitch width Sym-
bol when the needle bar iS at
zigzag phaSe.
Stitch
width
Symbol
Stitch
length
Symbol
lcd diSplayS Stitch length Sym-
bol when the needle bar iS at
feed phaSe.
lcd diSplayS “07”.
preSS the needle Up/down bUt-
ton when lcd diSplayS Stitch
width Symbol.
the zigzag motor will be initial-
ized and get itS defaUlt poSi-
tion.
Stitch
width
Symbol
self-diagnostiC test
move the preSSer foot lifter
Up and down.
if the reSUlt iS correct condi-
tion, preSS the Start/Stop bUt-
ton to proceed the next Step.
if the reSUlt iS defective
condition, preSS the reverSe
Stitch bUtton to proceed the
next Step.
lcd diSplayS “05”.
when the preSSer foot lifer iS
lowered, bUzzer SoUndS and lcd
diSplayS preSSer foot Symbol.
when the bUttonhole lever iS
raiSed, bUzzer SoUndS and the
preSSer foot Symbol diSappearS.
presser
foot symbol
bUzzer doeS not SoUnd.
preSSer foot Symbol doeS
not appear.
–Remedy–
adjUSt the preSSer foot
lifter Switch poSition.
replace the preSSer foot
lifter Switch.
replace the circUit board a.
preSS the needle Up/down bUt-
ton when lcd diSplayS Stitch
length Symbol.
the feed motor will be initial-
ized and get itS defaUlt poSi-
tion.
Stitch
length
Symbol
