Singer CONFIDENCE 7463 - Sec. 2 Test Mode Operation; Entering Test Mode Procedure

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Sec.2 Test mode
1. Push bobbin winder to the right
2. Push and hold reverse switch in place.
3. Turn on power switch.
4. Release bobbin winder while pushing reverse switch, just after power switch is turned on.
5. LED is lit at the top left corner.
7422, 7442,
7462
7424, 7444,
7464 and
others