Croma24 Service Manual
Stepper Motor Winding Resistance Check
Figure 3-8. Stepper Motor.
1.Disconnect the stepper motor connection from the MPCB.
2.Using a standard ohmmeter or multimeter, measure between pins 1 (yellow wire) and 3.
3.The reading should indicate 7.2 - 8.0 ohms.
4.Continue by measuring between pins 4 and 6.
5.Reading should also indicate 7.2 - 8.0 ohms.
6.If either measurement is out of tolerance, replace the stepper motor.
Banding: Hardware vs Software
The technician must be able to identify whether the banding that is being observed is related to either a hardware or a software problem. The two examples in Figure
MAINTENANCE
