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Step 1521-12
Reconnect the ac power cable(s) to the power distribution unit.
Note: Read the Danger and Caution notices under "Safety Notices" on page xi before
Perform the following:
1. Disconnect the ac power cable from each power supply of the primary I/O drawer.
2. Use a multimeter to measure the ac voltage at the drawer end of each ac power
cable.
Is the ac voltage from 200 V ac to 240 V ac?
NO
YES
94
Service Guide
continuing with this procedure.
Replace the ac power cable(s).
This ends the procedure. Go to "Map 0410: Repair Checkout" in the
Diagnostics Information for Multiple Bus Systems .
Go to "Step 1521-13" on page 95.
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