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Over Current Isolation
20
• Set the EPO switch to Off.
• Plug OCA2 back in and fasten.
Does this machine contain a Processor/Memory
Book next to OCA2?
YES
NO
~
Continue at step 23.
21
• Unplug PU book and draw it away from the
cage approximately 7.5 mm (3 in.). Do not
unplug any cables from the PU book at this
time.
• Set the EPO switch to On and wait 2 minutes.
Are the LOAD FL T indicators for the OCAs on?
YES
NO
~
22
Exchange the following FRU:
• PU/Memory Book
Continue at step 37.
• Set the EPO switch to Off.
• Plug the PU/MEMORY Book back in and
fasten.
Continue at step 23.
196
Service Guide
For OCA instructions, refer to "OCA (Offline
Converter Assembly) Removal and Replacement"
on page 156.
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