Singer Quantum Stylist
TM
9960 23
Service Program
.
This machine has the Service program to locate the defected a electronic part.
Handling
1. Go into the Service program - Sensor menu by pressing the buttons (A) and (C) as shown in illustration
and turn on the power switch
2. When this program has started correctly, the LCD will indicate the conditions of each electrical part as
shown.
3. To quit this program, turn off the power switch.
Service program - Sensor menu
This menu is for checking the different sensors or switches in the machine.
Buttonhole sensor - (b) and (f)
Located on the back side of the zigzag step motor
Check
Lower the buttonhole lever and check the switch by pulling or pushing this lever.
b: Buttonhole lever switch -Rear
1=Neutral 0=Lever is pulled.
f: Buttonhole lever switch -Front
1=Neutral 0=Lever is pushed.
Synchronizer sensor (S), (T) and (s)
The synchronizer is located on the right hand side of the upper shaft.
Check
Turn the handwheel and check the response of each sensor.
S: Stop sensor 1=not intercepted 0=intercepted
T: Timing sensor 1=not intercepted 0=intercepted
s: Speed sensor 1=not intercepted 0=intercepted
+
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A
C
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