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2-69 4059 Service Manual
4059-XXX
The elevator moves in one direction only.
FRU Action
1 Stepper Motor
High Capacity Feeder
Option Control Board
Check the voltages at J1 on the high
capacity system board. The voltage
measures as follows:
static (motor connected)
J1-1 (Orange) +24 V dc
J1-2 (Yellow) +24 V dc
J1-3 (Green) +24 V dc
J1-4 (White) +24 V dc
motor running
J1-1 (Orange) approximately +12 V dc
J1-2 (Yellow) approximately +12 V dc
J1-3 (Green) approximately +12 V d
J1-4 (White) approximately +12 V dc
If any of the voltages are incorrect,
disconnect the motor and measure the
resistance between pin J1-1 to J1-3 and J1-
2 and J1-4. The resistance measures
between 10 and 15 ohms. If incorrect,
replace the motor. If correct, replace the
high capacity feeder control board.