Offset Motor Assembly Failure - Olivetti DR N17 Service Manual

9.7.9 Offset Motor Assembly Failure

1 Check the Cam Gear. Does the rotation of the gear of the Offset Motor Assembly move the Cam
Gear smoothly?
NOTE: Check by rotating the Cam Gear manually.
Y: Go to step 2.
N: Replace the Cam Gear.
2 Check the Power Supply to the Step Motor Assembly. There is +24VDC between the following
pins:
• P223-1 and P209-8
• P223-2 and P209-8
• P223-3 and P209-8
• P223-4 and P209-8
• P223-5 and P209-8
• P223-6 and P209-8
Y: Go to step 3.
N: Replace the OCT PWB.
3 Check the resistance of the windings of the Offset Motor Assembly. There is approximately 115
ohms resistance between the following pins:
• J223-1 and J223-3
• J223-1 and J223-5
• J223-2 and J223-4
• J223-2 and J223-6
Y: Replace the OCT PWB.
N: Replace the Offset Motor Assembly.
9-40 687200Q