Hitachi RPIL-3.0UFE1NH Service Manual page 37

3. CHECKING COMPONENTS
4. INDUCTANCE
Familiar error:
1）Sound abnormality
2）Insulation resistance disqualification.
5. STEP MOTOR
5
1
4
2
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
Checking 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 (Fig.1)
Fuse
PCB Ass'Y
Fig.1
Check for continuity by a multimeter as shown in Fig.2.
Fuse
Fig.2
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