Lexmark T522 Service Manual - Page 101
The elevator moves in one direction only.
UPC - 734646620642
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4520-xxx The elevator moves in one direction only. FRU 1 DC Drive Motor Assembly High Capacity Feeder System Board Action Check the voltages at J1 on the high capacity system board. The voltages measure as follows: Static (Motor Not Running) J1-1 (Brown): approximately 0 V dc J1-2 (yellow): approximately 0 V dc Motor Running Forward J1-1 (Brown): Approximately 0 V dc J1-2 (Yellow): Approximately +24 V dc Motor Running Reverse J1-1 (Brown): Approximately +24 V dc J1-2 (Yellow): Approximately 0 V dc If any of the voltages are incorrect, disconnect the motor and measure the resistance between J-1 and J-2. The resistance measures between 7.5 and 10.5 ohms. If incorrect replace the motor. If correct, replace the system board. Diagnostic Information 2-73