3. CHECKING COMPONENTS
5. Step motor
5
4
2
1
Test in resistance.
TOOL: Multimeter.
Test the resistance of winding. The stepper motor fails if the resistance of winding is
0 (short circuit) or ∞ (open circuit).
6. Fuse
Check for continuity of fuse on PCB ASS’Y.
Remove the PCB ASS’Y from the
electrical component box. Then pull out the fuse from the
PCB ASS’Y.Check for continuity by a multimeter as shown below.
Fuse
PCB Ass'Y
Fuse
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