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Maintenance Object Repair Procedures
555-233-123
10-368
Issue 4 May 2002
Figure 10-17.
631DA or 631DB AC Power Unit
Power Unit Replacement Procedures
If the power unit to be replaced is in a control carrier of a PPN system, refer to
‘‘Replacing power supplies and fans’’
Chapter 5, ‘‘Routine Maintenance
before replacing the power unit.
1. Set the power switch to OFF, and unplug the power cord.
2. Move the locking slide on the power unit to its leftmost position and unlatch
the locking lever.
3. Remove the power unit from the carrier.
STATUS
LOCKING
LEVER
LOCKING
SLIDE
POWER
CORD
OUTLET
LEDS
RED
AMBER
Summary of Contents for Definity SI
Page 1: ...0DLQWHQDQFH IRU YD D 1 7 6HUYHU 6 Volumes 1 2 and 3 555 233 123 Issue 4 May 2002...
Page 62: ...Maintenance Architecture 555 233 123 1 26 Issue 4 May 2002...
Page 92: ...Management Terminals 555 233 123 3 26 Issue 4 May 2002...
Page 204: ...Routine Maintenance Procedures 555 233 123 5 100 Issue 4 May 2002...
Page 250: ...LED Interpretation 555 233 123 7 10 Issue 4 May 2002...
Page 2804: ...Maintenance Object Repair Procedures 555 233 123 10 2018 Issue 4 May 2002...